254:(also Heathcote) M.P. for Tiverton, the Heathcote steam plough was demonstrated in 1837 and press coverage fortunately provided a wood cut of this unusual tracked vehicle. The continuous tracks were made of 215 cm (7 ft) sections of wood bolted to continuous iron bands which were driven by the 'drums' at each end. A strong chassis provided the bearings for the drums, and carried the steam engine, fuel and winch. The chassis was supported on "numerous small wheels or rollers" which ran upon the lower iron bands, which "thus form a perfectly portable and smooth road for the platform". The drums were 275 or 305 cm (9 or 10 ft) in diameter, 790 cm (26 ft) apart. The tracks were each 215 cm (7 ft) wide with a 215 cm (7 ft) gap in-between giving an overall width of 640 cm (21 ft). The twin-cylinder steam engine could be used either to drive the plough winch or to drive the vehicle along, at a speed of up to 150 cm/min (5 ft/min). Although the machine weighed 30 tons complete with 6 tons of fuel, its ground pressure was only 869 kg/m (178 lb/sq ft), considerably less than a man. The successful demonstration was carried out on
1404:
1017:
1462:
1001:
1064:
overlapping wheels, freeze, and immobilize the vehicle. As a tracked vehicle moves, the load of each wheel moves over the track, pushing down and forward that part of the earth or snow underneath it, similarly to a wheeled vehicle but to a lesser extent because the tread helps distribute the load. On some surfaces, this can consume enough energy to slow the vehicle down significantly. Overlapped and interleaved wheels improve performance (including fuel consumption) by loading the track more evenly. It also must have extended the life of the tracks and possibly of the wheels. The wheels also better protect the vehicle from enemy fire, and mobility is improved when some wheels are missing.
1339:
1163:
776:
80:
1209:
1091:, is placed at the opposite end of the track, primarily to tension the track, since loose track could be easily thrown (slipped) off the wheels. To prevent throwing, the inner surface of the track links usually have vertical guide horns engaging grooves, or gaps between the doubled road and idler/sprocket wheels. In military vehicles with a rear sprocket, the idler wheel is placed higher than the road wheels to allow it to climb over obstacles. Some track arrangements use return rollers to keep the top of the track running straight between the drive sprocket and idler. Others, called
931:
538:
460:
1497:
1187:
981:. While tracked construction equipment typically lacks suspension due to the vehicle only moving at low speeds, in military vehicles road wheels are typically mounted on some form of suspension to cushion the ride over rough ground. Suspension design in military vehicles is a major area of development; the very early designs were often completely unsprung. Later-developed road wheel suspension offered only a few inches of travel using springs, whereas modern hydro-pneumatic systems allow several feet of travel and include
618:
562:
62:
22:
1446:
398:
91:
2959:
418:. He was granted a patent in 1901 and built the first steam-powered log hauler at the Waterville Iron Works in Waterville, Maine, the same year. In all, 83 Lombard steam log haulers are known to have been built up to 1917, when production switched entirely to internal combustion engine powered machines, ending with a Fairbanks diesel-powered unit in 1934. Alvin Lombard may also have been the first commercial manufacturer of the tractor crawler.
943:
1482:
242:
3542:
1175:
1354:
track easily rout the turf. Accordingly, vehicle laws and local ordinances often require rubberised tracks or track pads. A compromise between all-steel and all-rubber tracks exists: attaching rubber pads to individual track links ensures that continuous track vehicles can travel more smoothly, quickly, and quietly on paved surfaces. While these pads slightly reduce a vehicle's cross-country traction, in theory they prevent damage to any pavement.
3554:
480:
809:
974:, reducing it improves suspension performance at speeds where the track's momentum is significant. In contrast, agricultural and construction vehicles opt for a track with shoes that attach to the chain with bolts and do not form part of the chain's structure. This allows track shoes to break without compromising the ability of the vehicle to move and decrease productivity but increases the overall weight of the track and vehicle.
352:
between each pair of wheels, to support the 'track'. Comprising only eight sections, the 'track' sections are essentially 'longitudinal', as in
Boydell's initial design. Fowler's arrangement is a precursor to the multi-section caterpillar track in which a relatively large number of short 'transverse' treads are used, as proposed by Sir George Caley in 1825, rather than a small number of relatively long 'longitudinal' treads.
1087:, driven by the motor and engaging with holes in the track links or with pegs on them to drive the track. In military vehicles, the drive wheel is typically mounted well above the contact area on the ground, allowing it to be fixed in position. In agricultural crawlers it is normally incorporated as part of the bogie. Placing suspension on the sprocket is possible, but is mechanically more complicated. A non-powered wheel, an
33:
1390:
1430:
379:. But neither dreadnaught wheels nor continuous tracks were used, rather "roll-out" wooden plank roads were thrown under the wheels as required. In short, whilst the development of the continuous track engaged the attention of a number of inventors in the 18th and 19th centuries, the general use and exploitation of the continuous track belonged to the 20th century, mainly in the
882:
patent rights after a single rear-tracked gasoline-powered road engine of tricycle arrangement was built to replace the larger motor home in 1909 on account of problems with the old picturesque wooden bridges. This dispute resulted in Linn departing Maine and relocating to Morris, New York, to build an improved, contour following flexible lag tread or crawler with
2342:
119:, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tyres on an equivalent vehicle, enabling continuous tracked vehicles to traverse soft ground with less likelihood of becoming stuck due to sinking.
1056:(interleaved or overlapping running gear) in German, for both half-track and fully tracked vehicles. There were suspensions with single or sometimes doubled wheels per axle, alternately supporting the inner and outer side of the track, and interleaved suspensions with two or three road wheels per axle, distributing the load over the track.
2274:
1357:
Additionally, the loss of a single segment in a track immobilizes the entire vehicle, which can be a disadvantage in situations where high reliability is important. Tracks can also ride off their guide wheels, idlers or sprockets, which can cause them to jam or to come completely off the guide system
157:
The prominent treads of the metal plates are both hard-wearing and damage resistant, especially in comparison to rubber tyres. The aggressive treads of the tracks provide good traction in soft surfaces but can damage paved surfaces, so some metal tracks can have rubber pads installed for use on paved
1353:
The disadvantages of tracks are lower top speed, much greater mechanical complexity, shorter life and the damage that their all-steel versions cause to the surface on which they pass: They often cause damage to less firm terrain such as lawns, gravel roads, and farm fields, as the sharp edges of the
1142:
track is slightly more complex, with each link connected to the next by a bushing which causes the track to bend slightly inward. A length of live track left on the ground will curl upward slightly at each end. Although the drive sprocket must still pull the track around the wheels, the track itself
969:
Track construction and assembly is dictated by the application. Military vehicles use a track shoe that is integral to the structure of the chain in order to reduce track weight. Reduced weight allows the vehicle to move faster and decreases overall vehicle weight to ease transportation. Since track
421:
At least one of
Lombard's steam-powered machines apparently remains in working order. A gasoline-powered Lombard hauler is on display at the Maine State Museum in Augusta. In addition, there may have been up to twice as many Phoenix Centipeed versions of the steam log hauler built under license from
390:
A little-known
American inventor, Henry Thomas Stith (1839–1916), had developed a continuous track prototype which was, in multiple forms, patented in 1873, 1880, and 1900. The last was for the application of the track to a prototype off-road bicycle built for his son. The 1900 prototype is retained
965:
Modern tracks are built from modular chain links which together compose a closed chain. The links are jointed by a hinge, which allows the track to be flexible and wrap around a set of wheels to make an endless loop. The chain links are often broad, and can be made of manganese alloy steel for high
894:
powered. Although several were delivered for military use between 1917 and 1946, Linn never received any large military orders. Most of the production between 1917 and 1952, approximately 2500 units, was sold directly to highway departments and contractors. Steel tracks and payload capacity allowed
745:
In a patent dispute involving rival crawler builder Best, testimony was brought in from people including
Lombard, that Holt had inspected a Lombard log hauler shipped out to a western state by people who would later build the Phoenix log hauler in Eau Claire, Wisconsin, under license from Lombard.
1067:
This relatively complicated approach has not been used since World War II ended. This may be related more to maintenance than to original cost. The torsion bars and bearings may stay dry and clean, but the wheels and tread work in mud, sand, rocks, snow, and other surfaces. In addition, the outer
351:
filed
British Patent No. 1948 on another form of "Endless Railway". In his illustration of the invention, Fowler used a pair of wheels of equal diameter on each side of his vehicle, around which pair of toothed wheels ran a 'track' of eight jointed segments, with a smaller jockey/drive wheel
881:
car only with wheels in front and
Lombard crawlers in rear. Linn had experimented with gasoline and steam-powered vehicles and six-wheel drive before this, and at some point entered Lombard's employment as a demonstrator, mechanic and sales agent. This resulted in a question of proprietorship of
317:
was not ready for service. A detailed report of the tests on steam traction, carried out by a select
Committee of the Board of Ordnance, was published in June 1856, by which date the Crimean War was over, consequently the mortar and its transportation became irrelevant. In those tests, a Garrett
36:
1063:
suspension members, allowing any German tracked military vehicle with such a setup to have a noticeably smoother ride over challenging terrain, leading to reduced wear, ensuring greater traction and more accurate fire. However, on the
Russian front, mud and snow would become lodged between the
741:
in
England manufactured at least two full length "track steer" machines, and their patent was later purchased by Holt in 1913, allowing Holt to claim to be the "inventor" of the crawler tractor. Since the "tank" was a British concept it is more likely that the Hornsby, which had been built and
363:
moved on endless rails". It lacked self-propulsion and was pulled by horses. Blinov received a patent for his "wagon" in 1878. From 1881 to 1888 he developed a steam-powered caterpillar-tractor. This self-propelled crawler was successfully tested and featured at a farmers' exhibition in 1896.
35:
40:
39:
34:
505:
in July 1907. The soldiers immediately christened the 70bhp No.2 machine the 'caterpillar'." Holt adopted that name for his "crawler" tractors. Holt began moving from steam to gasoline-powered designs, and in 1908 brought out the 40-horsepower (30 kW) "Holt Model 40 Caterpillar". Holt
41:
1151:
Tracks are often equipped with rubber pads to improve travel on paved surfaces more quickly, smoothly and quietly. While these pads slightly reduce a vehicle's cross-country traction, they prevent damage to any pavement. Some pad systems are designed to remove easily for cross-country
1016:
442:, developed a continuous track which was patented in 1905. The design differed from modern tracks in that it flexed in only one direction, with the effect that the links locked together to form a solid rail on which the road wheels ran. Hornsby's tracked vehicles were given trials as
293:
Boydell patented improvements to his wheel in 1854 (No. 431) – the year his dreadnaught wheel was first applied to a steam engine – and 1858 (No. 356), the latter an impracticable palliative measure involving the lifting one or other of the driving wheels to facilitate turning.
1306:
Tracked vehicles have better mobility over rough terrain than those with wheels: they smooth out the bumps, glide over small obstacles and are capable of crossing trenches or breaks in the terrain. Riding in a fast tracked-vehicle feels just like riding in a boat over heavy
322:
employing dreadnaught wheels was built at Bach's
Birmingham works, and was used between 1856 and 1858 for ploughing in Thetford; and the first generation of Burrell/Boydell engines was built at the St. Nicholas works in 1856, again, after the close of the Crimean War.
1068:
wheels (up to nine of them, some double) had to be removed to access the inner ones. In WWII, vehicles typically had to be maintained for a few months before being destroyed or captured, but in peacetime, vehicles must train several crews over a period of decades.
757:
38:
1403:
1137:
track is a simple design in which each track plate is connected to the rest with hinge-type pins. These dead tracks will lie flat if placed on the ground; the drive sprocket pulls the track around the wheels with no assistance from the track itself.
930:
679:
A long line of patents disputes who was the "originator" of continuous tracks. There were a number of designs that attempted to achieve a track laying mechanism, although these designs do not generally resemble modern tracked vehicles.
989:
has become the most common type of military vehicle suspension. Construction vehicles have smaller road wheels that are designed primarily to prevent track derailment and they are normally contained in a single bogie that includes the
728:
allowed pulp to be taken to rivers in the winter. Prior to then, horses could be used only until snow depths made hauling impossible. Lombard began commercial production which lasted until around 1917 when focus switched entirely to
1044:), had slack-track systems, usually driven by a front-located drive sprocket, the track returning along the tops of a design of overlapping and sometimes interleaved large diameter road wheels, as on the suspension systems of the
2494:
2513:
2532:
290:, waged between October 1853 and February 1856, the Royal Arsenal at Woolwich manufacturing dreadnaught wheels. A letter of recommendation was signed by Sir William Codrington, the General commanding the troops at Sebastopol.
537:
1358:(this is called a "thrown" track). Jammed tracks may become so tight that the track may need to be broken before a repair is possible, which requires either explosives or special tools. Multi-wheeled vehicles, for example,
691:
moved on endless rails", which received a patent the next year. In 1881–1888 he created a steam-powered caterpillar-tractor. This self-propelled crawler was successfully tested and showed at a farmers' exhibition in 1896.
2564:
898:
Linn was a pioneer in snow removal before the practice was embraced in rural areas, with a nine-foot steel v-plow and sixteen foot adjustable leveling wings on either side. Once the highway system became paved,
285:
in 1846. In Boydell's design, a series of flat feet are attached to the periphery of the wheel, spreading the weight. A number of horse-drawn wagons, carts and gun carriages were successfully deployed in the
1224:
Starting from late 1980s, many manufacturers provide rubber tracks instead of steel, especially for agricultural applications. Rather than a track made of linked steel plates, a reinforced rubber belt with
1369:
and the mechanics of the tracks, which must be overhauled or replaced regularly. It is common to see tracked vehicles such as bulldozers or tanks transported long distances by a wheeled carrier such as a
1555:. Also, there are some crawler tractor companies specialising in niche markets. Examples are Otter Mfg. Co. and Struck Corporation., with many wheeled vehicle conversion kits available from the American
330:
gave a brief description of a Clayton & Shuttleworth engine fitted with dreadnaught wheels, which was supplied not to the Western Allies, but to the Russian government for heavy artillery haulage in
1271:
Tracked vehicles are much less likely than wheeled vehicles to get stuck in soft ground, mud or snow, since the tracks distribute the weight of the vehicle over a larger contact area, decreasing its
394:
Frank Beamond (1870–1941), a less-commonly known but significant British inventor, designed and built caterpillar tracks, and was granted patents for them in a number of countries, in 1900 and 1907.
671:, built by Great Britain, were designed from scratch and were inspired by, but not directly based on, the Holt. The slightly later French and German tanks were built on modified Holt running gear.
611:
credited Scott's "motors" with the inspiration for the British World War I tanks, writing: "Scott never knew their true possibilities; for they were the direct ancestors of the 'tanks' in France."
37:
1461:
1000:
1162:
318:
engine was put through its paces on Plumstead Common. The Garrett engine featured in the Lord Mayor's show in London, and in the following month that engine was shipped to Australia. A
1329:. Should a track be broken, it often can be repaired immediately using special tools and spare parts, without the need for special facilities; this may be crucial in combat situations.
1579:
are known for their ability to creep about on each other and on hard surfaces such as microscope slides. It is thought that around the outside of the navicula's shell is a girdle of
1040:
Many World War II German military vehicles, initially (starting in the late 1930s) including all vehicles originally designed to be half-tracks and all later tank designs (after the
335:
in the post-war period. Steam tractors fitted with dreadnaught wheels had a number of shortcomings and, notwithstanding the creations of the late 1850s, were never used extensively.
561:
233:
which he patented the same year, but due to a lack of funds and interest from manufacturers he was unable to build a working prototype, and his patent was voided in 1839.
2095:
262:
on 20 April 1837. The steam plough was lost when it sank into a swamp by accident and was then abandoned as the inventor did not have the funds to continue development.
895:
these machines to work in terrain that would typically cause the poorer quality rubber tyres that existed before the mid-1930s to spin uselessly, or shred completely.
1232:
In comparison to steel tracks, rubber tracks are lighter, waste less power on internal friction, make less noise and do not damage paved roads. However, they impose
936:
Diagram of tracked suspension: (1=rear drive wheel (rear wheel drive), 2=track, 3=return rollers, 4=front drive wheel (front wheel drive), 5=road wheels, 6=idler)
775:
309:
applied the Boydell patent under licence. The British military were interested in Boydell's invention from an early date. One of the objectives was to transport
1243:
tracks. Another disadvantage is that they are not disassemblable into tracks and therefore cannot be repaired, having to be discarded as whole if once damaged.
2588:
2032:
1362:
military vehicles, may often continue driving even after the loss of one or more non-sequential wheels, depending on the base wheel pattern and drive train.
1314:, on the track shoes, allows vastly superior traction that results in a much better ability to push or pull large loads where wheeled vehicles would dig in.
1936:
1208:
2811:
2624:
158:
surfaces. Other than soft rubber belts, most chain tracks apply a stiff mechanism to distribute the load equally over the entire space between the
2948:
702:
459:
453:
The Hornsby tractors pioneered a track-steer clutch arrangement, which is the basis of the modern crawler operation. The patent was purchased by Holt.
1875:
709:
invented a "vehicle" on endless tracks, patented as No. 351,749 on November 2, 1886. The article gives a detailed description of the endless tracks.
2063:
756:
588:
2269:
1722:
1239:
below the wheels, as they are not able to equalize pressure as well as the stiff mechanism of track plates, especially the spring loaded
746:
The Phoenix Centipeed typically had a fancier wood cab, steering wheel tipped forward at a 45 degree angle and vertical instead of horizontal
1445:
1250:
in World War II, were not as strong, and during military actions were easily damaged. The first rubber track was invented and constructed by
1911:
1287:). Since tyre air pressure is approximately equal to average ground pressure, a typical car will have an average ground pressure of 28
326:
Between late 1856 and 1862 Burrell manufactured not less than a score of engines fitted with dreadnaught wheels. In April 1858, the journal
1819:
2304:
1704:
1671:
1496:
506:
incorporated the Holt Caterpillar Company, in early 1910, later that year trademarked the name "Caterpillar" for his continuous tracks.
2712:
2220:
531:", which had the advantage of keeping the main drive shaft away from ground shocks and dirt, and is still used in their larger dozers.
2372:
1111:
by applying more or less drive torque to one side of the vehicle than the other, and this can be implemented in a variety of ways.
2447:
2088:
1614:
1174:
663:, Holt tractors were used by the British and Austro-Hungarian armies to tow heavy artillery and stimulated the development of
3527:
3287:
2468:
1758:
3208:
2687:
656:, became convinced that it was possible to develop a fighting vehicle that could provide protection from machine gun fire.
2734:
2422:
617:
348:
2135:
1785:
479:
2880:
2248:
1849:
977:
The vehicle's weight is transferred to the bottom length of track by a number of road wheels, or sets of wheels called
668:
162:
for minimal deformation, so that even the heaviest vehicles can move easily, just like a train on its straight tracks.
1378:, though technological advances have made this practice less common among tracked military vehicles than it once was.
2336:
2272:, David Roberts, "Improvements in or connected with Road Locomotives and Vehicles.", published 1 Jun 1905
1795:
1768:
856:
830:
838:
724:
with sled steerage on front and crawlers in rear for hauling logs in the Northeastern United States and Canada. The
3595:
2326:
2821:
2596:
2021:
1186:
1925:
2005:
1634:
834:
222:
2787:
2620:
3590:
3203:
73:
3479:
1868:
255:
2199:
Biographical information about the American inventor Henry Thomas Stith (1839-1916) is available from the
1429:
1059:
The choice of overlapping/interleaved road wheels allowed the use of slightly more transverse-orientation
3353:
3297:
2056:
587:
presented his view that man-hauling to the South Pole was impossible and that motor traction was needed.
527:
in 1977, Caterpillar resurrected a design by Holt and Best, the high-sprocket-drive, since known as the "
509:
170:
3517:
2913:
2739:
1338:
513:
2662:
942:
3605:
3580:
3505:
2758:
2559:
2527:
2508:
738:
435:
306:
302:
298:
2489:
595:
developed the idea of a caterpillar track for snow surfaces. These tracked motors were built by the
422:
Lombard, with vertical instead of horizontal cylinders. In 1903, the founder of Holt Manufacturing,
1718:
1481:
1366:
819:
717:
570:
528:
415:
313:, a giant 36 inch weapon which was under development, but, by the end of the Crimean War, the
79:
1095:, allow the track to droop and run along the tops of large road wheels. This was a feature of the
3154:
3149:
1619:
1536:
823:
1811:
3348:
2873:
2837:
2300:
986:
883:
372:
131:
1961:
1899:
1692:
3459:
3313:
2923:
2443:
1663:
1296:
1288:
1280:
1259:
1143:
tends to bend inward, slightly assisting the sprocket and somewhat conforming to the wheels.
1115:
608:
604:
411:
2708:
2213:
1168:
Small tracks on a roadworks machine. Note the rubber pads to reduce wear on the carriageway.
3409:
3333:
3098:
3058:
2908:
907:
trucks equipped by improving tyre designs, and the Linn became an off highway vehicle, for
706:
552:
218:
8:
3600:
3558:
3500:
3363:
3063:
2903:
1096:
697:
584:
50:
1251:
3469:
3444:
3434:
3399:
3343:
3323:
3270:
3243:
3181:
3093:
3027:
2928:
1540:
1519:
The pioneer manufacturers have been replaced mostly by large tractor companies such as
916:
733:
powered machines. A gasoline-powered hauler is on display at the Maine State Museum in
644:
Continuous track was first applied to a military vehicle on the British prototype tank
502:
310:
112:
628:
In time, however, a wide array of vehicles were developed for snow and ice, including
3585:
3546:
3510:
3439:
3368:
3255:
3041:
2943:
2918:
2866:
2332:
2001:
1845:
1791:
1764:
1389:
1318:, which are most often tracked, use this attribute to rescue other vehicles (such as
782:
747:
713:
443:
278:
272:
166:
123:
98:
2608:
In 1925 Holt and C.W. Best's company merged to form the Caterpillar Tractor Company.
1604:
1262:
HGR in 1945-1948, which was ahead of its time and only seen small-scale production.
1255:
3495:
3373:
3358:
3225:
3144:
3103:
3088:
3036:
2938:
1548:
1371:
904:
592:
410:
A first effective continuous track was not only invented but really implemented by
151:
127:
2200:
1962:"The iron, coal, and general trades of Birmingham, Wolverhampton, and other towns"
1099:, leading to occasional misidentification of other slack track-equipped vehicles.
225:
designed caterpillar vehicles in the 1830s to compete with the railways. In 1837,
3404:
3389:
3292:
3282:
3274:
3139:
3012:
2990:
2980:
2464:
1326:
1272:
1236:
1153:
874:
785:
607:. Scott died during the expedition in 1912, but expedition member and biographer
600:
596:
524:
314:
259:
201:. The idea of continuous tracks can be traced back as far as the 1830s, however.
147:
2683:
3522:
3338:
3328:
3250:
3193:
3134:
3073:
3068:
3053:
2985:
2847:
2744:
2185:
2178:
2171:
1556:
1524:
982:
734:
653:
649:
573:. The elevated drive sprocket offers advantages to large earth-moving machines.
567:
251:
61:
2853:
2843:
2833:
2416:
599:
in Birmingham, tested in Switzerland and Norway, and can be seen in action in
501:
came from a soldier during the tests on the Hornsby crawler, "trials began at
3574:
3474:
3429:
3113:
3108:
3083:
3078:
2812:
Scale model of Hornsby Chain Tractor at 2005 Harrogate Model Engineering Show
2127:
1609:
1300:
1292:
1284:
1192:
971:
891:
763:
684:
645:
548:
423:
380:
356:
319:
282:
214:
2492:, James K Glen, "Improvement in Motive Power", issued 1867-10-22
2244:
426:, paid Lombard $ 60,000 for the right to produce vehicles under his patent.
217:
patented a continuous track, which he called a "universal railway" in 1825.
21:
3238:
3213:
3198:
3171:
3161:
3022:
2933:
1507:
1503:
1488:
1410:
1319:
1049:
798:
544:
447:
397:
95:
66:
2511:, William Fender, "Wheel With Endless Rail", issued 1887-11-29
2403:
Scott and Amundsen. Their Race to the South Pole. The Last Place on Earth.
1842:
The story of the St. Nicholas Works: A History of Charles Burrell and Sons
1562:
Russian off-road vehicles are built by companies such as ZZGT and Vityaz.
1226:
229:
army captain Dmitry Andreevich Zagryazhsky (1807 – after 1860) designed a
90:
3260:
3186:
3176:
3166:
3129:
3046:
3007:
2958:
2530:, Goldsbury Harden Pond, "Traction Engine", issued 1890-08-05
2181:
U.S. Patent no. 224,741 (filed: 5 August 1879; issued: 17 February 1880).
1254:
and patented in 1913; in historic context rubber tracks are often called
1077:
1060:
991:
660:
466:
344:
287:
178:
2188:
U.S. Patent no. 654,291 (filed: 26 December 1899; issued: 24 July 1900).
725:
241:
2245:"Lombard Log Hauler and Model T Snowmobile Show Route 175 Thornton, NH"
1787:
Steam on the Farm: A History of Agricultural Steam Engines 1800 to 1950
1629:
1599:
1580:
1528:
1436:
1247:
1023:
870:
721:
633:
517:
182:
46:
547:
gasoline crawler tractors teamed up to pull a long wagon train in the
3424:
3318:
3017:
2452:. Vol. 2. London, England: Constable & Co. Ltd. p. 322.
1594:
1419:
1414:
1315:
1276:
1041:
900:
887:
877:
to pull the equipment wagon of his dog & pony show, resembling a
194:
190:
26:
2817:
Dedication to the only commercially-sold Hornsby caterpillar crawler
2783:
808:
181:. Today, they are commonly used on a variety of vehicles, including
3464:
3414:
2889:
2214:"Invention of the Caterpillar Track: Frank Beamond and his Patents"
1572:
1472:
1468:
1108:
1083:
949:
730:
439:
376:
210:
49:
with continuous track wheels crosses a river and dumps its load in
1030:
overlapped/interleaved roadwheel sets for each track unit per side
3394:
2975:
1624:
1544:
1346:
1311:
1197:
1045:
1007:
908:
767:
629:
469:
384:
277:
Although not a continuous track in the form encountered today, a
186:
69:
2595:. President and Fellows of Harvard College. 2010. Archived from
2174:
U.S. Patent no. 138,707 (filed: 2 May 1873; issued: 6 May 1873).
281:
or "endless railway wheel" was patented by the British Engineer
138:
made of steel plates (with or without rubber pads), also called
3449:
3000:
2995:
1639:
1576:
1532:
912:
742:
unsuccessfully pitched to their military, was the inspiration.
429:
332:
226:
84:
1120:
3419:
2967:
1552:
1375:
1359:
1325:
Tracks cannot be punctured or torn and are more resilient in
978:
688:
667:
in several countries. The first tanks to go into action, the
450:
on several occasions between 1905 and 1910, but not adopted.
360:
159:
54:
2816:
2562:, Charles Dinsmoor, "Vehicle", issued 1886-11-02
1214:
Tracked vehicles long-distance hauling on equipment trailers
165:
The stiff mechanism was first given a physical form by
3454:
2858:
1520:
1452:
1343:
953:
878:
664:
198:
174:
2762:
2761:. Russia: Zavolzhsky Crawler Vehicle Plant. Archived from
1812:"Burrell's traction engine with Boydell's endless railway"
83:
A Russian tracked vehicle designed to operate on snow and
1863:
1861:
1279:
tank has an average ground pressure of just over 15
873:
was built by Lombard for Holman Harry (Flannery) Linn of
343:
In August 1858, more than two years after the end of the
2391:
The Sledging Problem in the Antarctic, Men versus Motors
1900:"Governments Experiments with Boydell's Traction-Engine"
1180:
Worn and new track pads on an M1 Abrams main battle tank
520:, an early successful manufacturer of crawler tractors.
355:
Further to Fowler's patent of 1858, in 1877, a Russian,
338:
2658:
2578:
Scientific American, December 18, 1886, Vol. LV, No. 25
2373:"Cat's elevated sprocket that changed the dozer market"
1322:) which have become stuck in, or sunk into, the ground.
434:
At about the same time a British agricultural company,
2318:
1858:
1422:, with overlapped interleaved wheels and "slack track"
266:
130:, reinforced with steel wires, in the case of lighter
1310:
The larger contact area, coupled with the cleats, or
1076:
Transfer of power to the track is accomplished by a
2362:
The Earthmover Encyclopedia, Page 28, Keith Haddock
1246:Previous belt-like systems, such as those used for
1006:Overlapped and interleaved road wheels of a German
2834:Hornsby Chain Tractor Promotion-Video (6:17, 1908)
2130:[The inventor of the tractor (F.Blinov)].
1365:Prolonged use places enormous strain on the drive
636:, and countless commercial and military vehicles.
405:
401:Lombard Steam Log Hauler (Designed, patented 1901)
297:A number of manufacturers including Richard Bach,
2331:. MotorBooks International. pp. 17, 20, 21.
1583:that can flow and thus act as a continuous track.
1026:'s half-track units, showing the rims of its six
134:. The more common classical type is a solid
3572:
1977:
1258:. First rubber-tracked agricultural tracked was
375:were used at the end of the 19th century in the
2167:Henry T. Stith's patents for tracked wheels:
1455:tank with "slack track" and rear drive sprocket
591:did not yet exist however, and so his engineer
122:Modern continuous tracks can be made with soft
2442:
1998:The Development of the English Traction Engine
1693:"Sir George Cayley's patent universal railway"
687:created a horse-drawn tracked vehicle called "
603:'s 1911 documentary film of Scott's Antarctic
245:Heathcote Steam Plough as demonstrated in 1837
2874:
2303:. Antique Caterpillar Machinery Owners Club.
2268:
966:strength, hardness, and abrasion resistance.
960:
2646:Encyclopedia of German Tanks of World War II
2581:
2089:"Patent No. 5260 A New Locomotive Apparatus"
583:In a memorandum of 1908, Antarctic explorer
430:The stiff chain by Hornsby & Sons (1904)
2786:. Russia: Vityaz machine-building company.
2735:"The Small Tractor FAQ – Tractor Resources"
2414:
837:. Unsourced material may be challenged and
492:
236:
2881:
2867:
2709:"Search results for Used Tracked tractors"
1035:
146:, which is preferred for robust and heavy
2328:Giant Earthmovers: An Illustrated History
2125:
2121:
2119:
2117:
2115:
857:Learn how and when to remove this message
1514:
1475:and return rollers holding up the track
1337:
720:that resembles a regular railroad steam
623:Snow wing skid steer with tracked treads
396:
240:
89:
78:
60:
31:
20:
2589:"Caterpillar Tractor Co. List of Deals"
1959:
1658:
1656:
1559:firm of Minnesota since the mid-1990s.
639:
367:
3573:
2759:"The Zavolzhsky Crawler Vehicle Plant"
2732:
2293:
2112:
1711:
3288:Simultaneous localization and mapping
2862:
2086:
1995:
1933:Science& Society: Picture Library
1783:
1125:Tracks may be broadly categorized as
1052:tanks, generically known by the term
339:Endless Railway by John Fowler (1858)
2644:Peter Chamberlain and Hilary Doyle,
2549:, H. W. Wilson Company (1950), p. 47
2022:"Charles Burrell & Sons Limited"
1983:
1839:
1653:
1146:
869:In the meantime, a gasoline-powered
835:adding citations to reliable sources
802:
716:was issued a patent in 1901 for the
359:, created a tracked vehicle called "
2822:Hornsby Steam Chain Tractor website
2324:
2128:"Изобретатель трактора (Ф. Блинов)"
1926:"Tuxford's Boydell Traction Engine"
597:Wolseley Tool and Motor Car Company
512:began in 1925 from a merger of the
267:Dreadnaught wheel by Boydell (1846)
13:
2462:
2156:The Implement and Machinery Review
1763:. MotorBooks International. 2001.
1747:. US. 29 December 1837. p. 4.
766:'s steam-powered continuous track
737:. After Lombard began operations,
473:(1905, Richard Hornsby & Sons)
14:
3617:
2805:
674:
648:. British Army officers, Colonel
169:in 1904 and then made popular by
3552:
3541:
3540:
2957:
2172:"Improvement in traction-wheels"
1914:from the original on 2016-03-04.
1707:from the original on 2017-03-13.
1495:
1480:
1460:
1444:
1428:
1402:
1388:
1333:
1219:
1207:
1185:
1173:
1161:
1015:
999:
941:
929:
807:
781:A working model of the original
774:
755:
616:
578:
560:
536:
478:
458:
3553:
2790:from the original on 2016-10-22
2776:
2751:
2726:
2715:from the original on 2013-06-02
2701:
2690:from the original on 2012-03-14
2676:
2665:from the original on 2006-10-14
2651:
2638:
2627:from the original on 2012-03-08
2613:
2572:
2569:A design for a tracked vehicle.
2552:
2539:
2520:
2501:
2482:
2471:from the original on 2016-11-09
2456:
2436:
2425:from the original on 2016-10-03
2408:
2395:
2383:
2365:
2356:
2345:from the original on 2015-10-07
2307:from the original on 2016-03-22
2281:
2262:
2251:from the original on 2011-08-14
2237:
2226:from the original on 2015-07-21
2206:
2193:
2161:
2149:
2138:from the original on 2011-07-27
2101:from the original on 2017-11-21
2080:
2069:from the original on 2013-10-02
2049:
2038:from the original on 2014-02-21
2014:
2000:. Cambridge UK: Goose and Son.
1989:
1953:
1942:from the original on 2016-03-04
1918:
1892:
1881:from the original on 2013-10-02
1822:from the original on 2013-10-02
1725:from the original on 2009-08-11
1674:from the original on 2017-03-13
406:First commercial success (1901)
72:with rubber tracks, mitigating
2827:
2449:The Worst Journey in the World
1833:
1804:
1777:
1751:
1736:
1719:"Josef-Maria Hoëné de Wronski"
1685:
1435:Experimental four-track tank (
1071:
922:
1:
2621:"Austenitic Manganese Steels"
2467:. UK: Spartacus Educational.
1974:See p. 328, left-hand column.
1664:"The Tank Tread Was His Baby"
1646:
1265:
485:Hornsby Chain Tracked Tractor
231:"carriage with mobile tracks"
2888:
1760:Classic Caterpillar Crawlers
1743:"Heathcote's Steam Plough".
1703:(127): 225–227. 1826-01-28.
1565:
994:and sometimes the sprocket.
16:System of vehicle propulsion
7:
3298:Vision-guided robot systems
2844:Scale Model Hornsby Traktor
1587:
1102:
630:ski slope grooming machines
551:during construction of the
510:Caterpillar Tractor Company
171:Caterpillar Tractor Company
10:
3622:
3518:Technological unemployment
2740:Carnegie Mellon University
2686:. Kubota.com. 2008-07-14.
2593:Lehman Brothers Collection
2415:riverbanksy (2011-08-21).
1381:
1113:
1107:Continuous track vehicles
961:Construction and operation
796:
518:C. L. Best Tractor Company
514:Holt Manufacturing Company
307:Clayton & Shuttleworth
303:Charles Burrell & Sons
299:Richard Garrett & Sons
270:
204:
3536:
3506:Workplace robotics safety
3488:
3382:
3306:
3269:
3224:
3122:
2966:
2955:
2896:
2854:1/3 Scale Hornsby Traktor
2558:
2526:
2507:
2488:
2201:Kansas Historical Society
2057:"Burrell-Boydell Tractor"
1996:Clark, Ronald H. (1974).
1960:(Staff) (23 April 1858).
1910:(1). London. 1856-06-30.
1869:"Boydell Artillery Wheel"
1844:. London: Unicorn Press.
1840:Lane, Michael R. (1994).
890:type, gasoline and later
683:In 1877 Russian inventor
391:by his surviving family.
223:Józef Maria Hoene-Wroński
2684:"Kubota crawler tractor"
2126:Lozovoi, D.; Lozova, A.
1784:Brown, Jonathan (2008).
718:Lombard Steam Log Hauler
685:Fyodor Abramovich Blinov
493:Holt and the Caterpillar
416:Lombard Steam Log Hauler
237:Heathcote's Steam Plough
3596:Carriages and mountings
3354:Human–robot interaction
2401:Roland Huntford (2003)
1620:Screw-propelled vehicle
1121:"Live" and "dead" track
1036:Overlapping road wheels
792:
487:(1907 enhanced Version)
25:Continuous tracks on a
2838:British Film Institute
2444:Cherry-Garrard, Apsley
1350:
987:Torsion-bar suspension
884:independent suspension
402:
373:Steam traction engines
246:
132:agricultural machinery
101:
87:
76:
58:
29:
3460:Starship Technologies
2545:Kane, Joseph Nathan,
2405:Abacus, London, p.224
2087:Caley, Georg (1825).
2029:University of Reading
1904:The Farmer's Magazine
1615:Recreational products
1515:Current manufacturers
1502:Experimental tracked
1341:
1260:Oliver Farm Equipment
1116:Differential steering
970:weight is completely
609:Apsley Cherry-Garrard
605:Terra Nova Expedition
412:Alvin Orlando Lombard
400:
244:
148:construction vehicles
93:
82:
64:
44:
24:
3591:Engineering vehicles
3410:Energid Technologies
2733:Burner, Ken (1997).
2560:US patent 351749
2528:US patent 433488
2509:US patent 373887
2465:"Little Willie Tank"
2432:– via YouTube.
2389:R. F. Scott (1908).
2288:The Devil's Chariots
1745:Chelmsford Chronicle
915:, dam construction,
831:improve this section
712:Alvin O. Lombard of
707:Warren, Pennsylvania
640:Military application
553:Los Angeles Aqueduct
368:20th century efforts
250:Patented in 1832 by
219:Polish mathematician
3501:Powered exoskeleton
2846:(Stapleford Steam,
2490:US patent 69987
2301:"About Caterpillar"
1349:with a thrown track
1097:Christie suspension
698:Scientific American
585:Robert Falcon Scott
3470:Universal Robotics
3445:Intuitive Surgical
3435:Harvest Automation
3400:Barrett Technology
3182:Robotic spacecraft
3028:Audio-Animatronics
2659:"Official website"
2547:Famous First Facts
1697:Mechanics Magazine
1670:(June): 63. 1944.
1351:
1275:. The seventy-ton
917:arctic exploration
783:Hornsby & Sons
444:artillery tractors
403:
247:
167:Hornsby & Sons
113:vehicle propulsion
102:
88:
77:
59:
30:
3568:
3567:
3511:Robotic tech vest
3440:Honeybee Robotics
3256:Electric unicycle
3209:remotely-operated
2377:Equipment Journal
2132:Russia in Colours
1790:. Crowood Press.
1423:
1147:Rubber track pads
1054:Schachtellaufwerk
1028:Schachtellaufwerk
903:could be done by
867:
866:
859:
714:Waterville, Maine
279:dreadnaught wheel
273:Dreadnaught wheel
152:military vehicles
140:caterpillar tread
99:Challenger 1 tank
42:
3613:
3606:Tank subassembly
3581:Tracked vehicles
3556:
3555:
3544:
3543:
3528:Fictional robots
3496:Critique of work
3145:Unmanned vehicle
2961:
2883:
2876:
2869:
2860:
2859:
2799:
2798:
2796:
2795:
2780:
2774:
2773:
2771:
2770:
2755:
2749:
2748:
2743:. Archived from
2730:
2724:
2723:
2721:
2720:
2711:. Mascus.co.uk.
2705:
2699:
2698:
2696:
2695:
2680:
2674:
2673:
2671:
2670:
2655:
2649:
2642:
2636:
2635:
2633:
2632:
2617:
2611:
2610:
2605:
2604:
2585:
2579:
2576:
2570:
2568:
2567:
2563:
2556:
2550:
2543:
2537:
2536:
2535:
2531:
2524:
2518:
2517:
2516:
2512:
2505:
2499:
2498:
2497:
2493:
2486:
2480:
2479:
2477:
2476:
2460:
2454:
2453:
2440:
2434:
2433:
2431:
2430:
2418:90 Degrees South
2412:
2406:
2399:
2393:
2387:
2381:
2380:
2369:
2363:
2360:
2354:
2353:
2351:
2350:
2325:Haddock, Keith.
2322:
2316:
2315:
2313:
2312:
2297:
2291:
2290:, John Glanfield
2285:
2279:
2278:
2277:
2273:
2266:
2260:
2259:
2257:
2256:
2241:
2235:
2234:
2232:
2231:
2225:
2218:
2210:
2204:
2197:
2191:
2186:"Traction wheel"
2184:Stith, Henry T.
2179:"Traction-wheel"
2177:Stith, Henry T.
2170:Stith, Henry T.
2165:
2159:
2153:
2147:
2146:
2144:
2143:
2123:
2110:
2109:
2107:
2106:
2100:
2093:
2084:
2078:
2077:
2075:
2074:
2068:
2061:
2053:
2047:
2046:
2044:
2043:
2037:
2026:
2018:
2012:
2011:
1993:
1987:
1981:
1975:
1973:
1957:
1951:
1950:
1948:
1947:
1941:
1930:
1922:
1916:
1915:
1896:
1890:
1889:
1887:
1886:
1880:
1873:
1865:
1856:
1855:
1837:
1831:
1830:
1828:
1827:
1808:
1802:
1801:
1781:
1775:
1774:
1755:
1749:
1748:
1740:
1734:
1733:
1731:
1730:
1715:
1709:
1708:
1689:
1683:
1682:
1680:
1679:
1660:
1549:Caterpillar Inc.
1499:
1484:
1471:with rear drive
1464:
1448:
1432:
1417:
1406:
1392:
1372:tank transporter
1252:Adolphe Kégresse
1229:treads is used.
1211:
1189:
1177:
1165:
1019:
1003:
945:
933:
905:four wheel drive
862:
855:
851:
848:
842:
811:
803:
778:
759:
703:Charles Dinsmoor
620:
593:Reginald Skelton
564:
540:
482:
462:
177:emerging during
128:synthetic rubber
117:tracked vehicles
111:are a system of
105:Continuous track
43:
3621:
3620:
3616:
3615:
3614:
3612:
3611:
3610:
3571:
3570:
3569:
3564:
3532:
3484:
3405:Boston Dynamics
3390:Amazon Robotics
3378:
3302:
3293:Visual odometry
3283:Motion planning
3265:
3220:
3140:Continuum robot
3123:Classifications
3118:
2981:Anthropomorphic
2962:
2953:
2949:AI competitions
2892:
2887:
2830:
2808:
2803:
2802:
2793:
2791:
2782:
2781:
2777:
2768:
2766:
2757:
2756:
2752:
2731:
2727:
2718:
2716:
2707:
2706:
2702:
2693:
2691:
2682:
2681:
2677:
2668:
2666:
2657:
2656:
2652:
2643:
2639:
2630:
2628:
2619:
2618:
2614:
2602:
2600:
2587:
2586:
2582:
2577:
2573:
2565:
2557:
2553:
2544:
2540:
2533:
2525:
2521:
2514:
2506:
2502:
2495:
2487:
2483:
2474:
2472:
2461:
2457:
2441:
2437:
2428:
2426:
2413:
2409:
2400:
2396:
2388:
2384:
2371:
2370:
2366:
2361:
2357:
2348:
2346:
2339:
2323:
2319:
2310:
2308:
2299:
2298:
2294:
2286:
2282:
2275:
2267:
2263:
2254:
2252:
2243:
2242:
2238:
2229:
2227:
2223:
2216:
2212:
2211:
2207:
2198:
2194:
2166:
2162:
2154:
2150:
2141:
2139:
2124:
2113:
2104:
2102:
2098:
2091:
2085:
2081:
2072:
2070:
2066:
2059:
2055:
2054:
2050:
2041:
2039:
2035:
2024:
2020:
2019:
2015:
2008:
1994:
1990:
1982:
1978:
1958:
1954:
1945:
1943:
1939:
1928:
1924:
1923:
1919:
1898:
1897:
1893:
1884:
1882:
1878:
1871:
1867:
1866:
1859:
1852:
1838:
1834:
1825:
1823:
1810:
1809:
1805:
1798:
1782:
1778:
1771:
1757:
1756:
1752:
1742:
1741:
1737:
1728:
1726:
1717:
1716:
1712:
1691:
1690:
1686:
1677:
1675:
1668:Popular Science
1662:
1661:
1654:
1649:
1644:
1590:
1568:
1517:
1510:
1508:B-36 Peacemaker
1500:
1491:
1485:
1476:
1465:
1456:
1449:
1440:
1433:
1424:
1407:
1398:
1396:Komatsu CD-110R
1393:
1384:
1336:
1327:military combat
1273:ground pressure
1268:
1256:Kégresse tracks
1237:ground pressure
1222:
1215:
1212:
1203:
1190:
1181:
1178:
1169:
1166:
1154:military combat
1149:
1123:
1118:
1105:
1074:
1038:
1031:
1020:
1011:
1004:
983:shock absorbers
963:
956:
946:
937:
934:
925:
875:Old Town, Maine
863:
852:
846:
843:
828:
812:
801:
795:
788:
786:tracked tractor
779:
770:
760:
677:
642:
624:
621:
601:Herbert Ponting
581:
574:
565:
556:
541:
525:Caterpillar D10
495:
488:
486:
483:
474:
472:
463:
432:
408:
370:
341:
311:Mallet's Mortar
275:
269:
260:Bolton-le-Moors
239:
207:
74:soil compaction
32:
17:
12:
11:
5:
3619:
3609:
3608:
3603:
3598:
3593:
3588:
3583:
3566:
3565:
3563:
3562:
3550:
3537:
3534:
3533:
3531:
3530:
3525:
3523:Terrainability
3520:
3515:
3514:
3513:
3503:
3498:
3492:
3490:
3486:
3485:
3483:
3482:
3477:
3472:
3467:
3462:
3457:
3452:
3447:
3442:
3437:
3432:
3427:
3422:
3417:
3412:
3407:
3402:
3397:
3392:
3386:
3384:
3380:
3379:
3377:
3376:
3371:
3366:
3361:
3356:
3351:
3346:
3341:
3336:
3331:
3326:
3321:
3316:
3310:
3308:
3304:
3303:
3301:
3300:
3295:
3290:
3285:
3279:
3277:
3267:
3266:
3264:
3263:
3258:
3253:
3248:
3247:
3246:
3236:
3230:
3228:
3222:
3221:
3219:
3218:
3217:
3216:
3211:
3201:
3196:
3191:
3190:
3189:
3179:
3174:
3169:
3164:
3159:
3158:
3157:
3152:
3142:
3137:
3135:Cloud robotics
3132:
3126:
3124:
3120:
3119:
3117:
3116:
3111:
3106:
3101:
3096:
3091:
3086:
3081:
3076:
3071:
3066:
3061:
3056:
3051:
3050:
3049:
3039:
3034:
3033:
3032:
3031:
3030:
3015:
3010:
3005:
3004:
3003:
2998:
2993:
2988:
2978:
2972:
2970:
2964:
2963:
2956:
2954:
2952:
2951:
2946:
2941:
2936:
2931:
2926:
2921:
2916:
2911:
2906:
2900:
2898:
2894:
2893:
2886:
2885:
2878:
2871:
2863:
2857:
2856:
2851:
2848:Leicestershire
2841:
2829:
2826:
2825:
2824:
2819:
2814:
2807:
2806:External links
2804:
2801:
2800:
2775:
2750:
2747:on 2012-06-22.
2725:
2700:
2675:
2650:
2637:
2612:
2580:
2571:
2551:
2538:
2519:
2500:
2481:
2463:Simkin, John.
2455:
2435:
2407:
2394:
2382:
2364:
2355:
2337:
2317:
2292:
2280:
2261:
2236:
2205:
2192:
2190:
2189:
2182:
2175:
2160:
2148:
2134:(in Russian).
2111:
2079:
2048:
2013:
2006:
1988:
1976:
1952:
1917:
1891:
1857:
1851:978-0906290071
1850:
1832:
1803:
1796:
1776:
1769:
1750:
1735:
1710:
1684:
1651:
1650:
1648:
1645:
1643:
1642:
1637:
1632:
1627:
1622:
1617:
1612:
1607:
1605:Kégresse track
1602:
1597:
1591:
1589:
1586:
1585:
1584:
1567:
1564:
1525:Liebherr Group
1516:
1513:
1512:
1511:
1501:
1494:
1492:
1486:
1479:
1477:
1466:
1459:
1457:
1450:
1443:
1441:
1434:
1427:
1425:
1408:
1401:
1399:
1394:
1387:
1383:
1380:
1335:
1332:
1331:
1330:
1323:
1308:
1304:
1267:
1264:
1221:
1218:
1217:
1216:
1213:
1206:
1204:
1191:
1184:
1182:
1179:
1172:
1170:
1167:
1160:
1148:
1145:
1122:
1119:
1114:Main article:
1104:
1101:
1073:
1070:
1037:
1034:
1033:
1032:
1021:
1014:
1012:
1005:
998:
962:
959:
958:
957:
947:
940:
938:
935:
928:
924:
921:
865:
864:
815:
813:
806:
797:Main article:
794:
791:
790:
789:
780:
773:
771:
761:
754:
735:Augusta, Maine
676:
675:Patent history
673:
654:Maurice Hankey
650:Ernest Swinton
641:
638:
626:
625:
622:
615:
580:
577:
576:
575:
568:Caterpillar D9
566:
559:
557:
542:
535:
494:
491:
490:
489:
484:
477:
475:
464:
457:
431:
428:
407:
404:
369:
366:
340:
337:
271:Main article:
268:
265:
264:
263:
252:John Heathcoat
238:
235:
206:
203:
109:tracked treads
15:
9:
6:
4:
3:
2:
3618:
3607:
3604:
3602:
3599:
3597:
3594:
3592:
3589:
3587:
3584:
3582:
3579:
3578:
3576:
3561:
3560:
3551:
3549:
3548:
3539:
3538:
3535:
3529:
3526:
3524:
3521:
3519:
3516:
3512:
3509:
3508:
3507:
3504:
3502:
3499:
3497:
3494:
3493:
3491:
3487:
3481:
3478:
3476:
3475:Wolf Robotics
3473:
3471:
3468:
3466:
3463:
3461:
3458:
3456:
3453:
3451:
3448:
3446:
3443:
3441:
3438:
3436:
3433:
3431:
3430:Foster-Miller
3428:
3426:
3423:
3421:
3418:
3416:
3413:
3411:
3408:
3406:
3403:
3401:
3398:
3396:
3393:
3391:
3388:
3387:
3385:
3381:
3375:
3372:
3370:
3367:
3365:
3362:
3360:
3357:
3355:
3352:
3350:
3349:Developmental
3347:
3345:
3342:
3340:
3337:
3335:
3332:
3330:
3327:
3325:
3322:
3320:
3317:
3315:
3312:
3311:
3309:
3305:
3299:
3296:
3294:
3291:
3289:
3286:
3284:
3281:
3280:
3278:
3276:
3272:
3268:
3262:
3259:
3257:
3254:
3252:
3249:
3245:
3242:
3241:
3240:
3237:
3235:
3232:
3231:
3229:
3227:
3223:
3215:
3212:
3210:
3207:
3206:
3205:
3202:
3200:
3197:
3195:
3192:
3188:
3185:
3184:
3183:
3180:
3178:
3175:
3173:
3170:
3168:
3165:
3163:
3160:
3156:
3153:
3151:
3148:
3147:
3146:
3143:
3141:
3138:
3136:
3133:
3131:
3128:
3127:
3125:
3121:
3115:
3114:Soft robotics
3112:
3110:
3109:BEAM robotics
3107:
3105:
3102:
3100:
3097:
3095:
3092:
3090:
3087:
3085:
3082:
3080:
3077:
3075:
3072:
3070:
3067:
3065:
3064:Entertainment
3062:
3060:
3057:
3055:
3052:
3048:
3045:
3044:
3043:
3040:
3038:
3035:
3029:
3026:
3025:
3024:
3021:
3020:
3019:
3016:
3014:
3011:
3009:
3006:
3002:
2999:
2997:
2994:
2992:
2989:
2987:
2984:
2983:
2982:
2979:
2977:
2974:
2973:
2971:
2969:
2965:
2960:
2950:
2947:
2945:
2942:
2940:
2937:
2935:
2932:
2930:
2927:
2925:
2922:
2920:
2917:
2915:
2912:
2910:
2907:
2905:
2902:
2901:
2899:
2897:Main articles
2895:
2891:
2884:
2879:
2877:
2872:
2870:
2865:
2864:
2861:
2855:
2852:
2849:
2845:
2842:
2839:
2835:
2832:
2831:
2823:
2820:
2818:
2815:
2813:
2810:
2809:
2789:
2785:
2779:
2765:on 2013-11-27
2764:
2760:
2754:
2746:
2742:
2741:
2736:
2729:
2714:
2710:
2704:
2689:
2685:
2679:
2664:
2660:
2654:
2647:
2641:
2626:
2622:
2616:
2609:
2599:on 2010-06-29
2598:
2594:
2590:
2584:
2575:
2561:
2555:
2548:
2542:
2529:
2523:
2510:
2504:
2491:
2485:
2470:
2466:
2459:
2451:
2450:
2445:
2439:
2424:
2420:
2419:
2411:
2404:
2398:
2392:
2386:
2379:. 2017-09-17.
2378:
2374:
2368:
2359:
2344:
2340:
2338:9781610605861
2334:
2330:
2329:
2321:
2306:
2302:
2296:
2289:
2284:
2271:
2265:
2250:
2246:
2240:
2222:
2215:
2209:
2202:
2196:
2187:
2183:
2180:
2176:
2173:
2169:
2168:
2164:
2157:
2152:
2137:
2133:
2129:
2122:
2120:
2118:
2116:
2097:
2090:
2083:
2065:
2058:
2052:
2034:
2030:
2023:
2017:
2009:
2003:
1999:
1992:
1985:
1980:
1971:
1967:
1963:
1956:
1938:
1934:
1927:
1921:
1913:
1909:
1905:
1901:
1895:
1877:
1870:
1864:
1862:
1853:
1847:
1843:
1836:
1821:
1817:
1816:Grace's Guide
1813:
1807:
1799:
1797:9781847970527
1793:
1789:
1788:
1780:
1772:
1770:9781610605793
1766:
1762:
1761:
1754:
1746:
1739:
1724:
1720:
1714:
1706:
1702:
1698:
1694:
1688:
1673:
1669:
1665:
1659:
1657:
1652:
1641:
1638:
1636:
1635:Undercarriage
1633:
1631:
1628:
1626:
1623:
1621:
1618:
1616:
1613:
1611:
1610:Pedrail wheel
1608:
1606:
1603:
1601:
1598:
1596:
1593:
1592:
1582:
1578:
1575:
1574:
1570:
1569:
1563:
1560:
1558:
1554:
1550:
1546:
1542:
1538:
1534:
1530:
1526:
1522:
1509:
1505:
1498:
1493:
1490:
1483:
1478:
1474:
1470:
1463:
1458:
1454:
1447:
1442:
1438:
1431:
1426:
1421:
1416:
1412:
1405:
1400:
1397:
1391:
1386:
1385:
1379:
1377:
1373:
1368:
1363:
1361:
1355:
1348:
1345:
1340:
1334:Disadvantages
1328:
1324:
1321:
1320:wheel loaders
1317:
1313:
1309:
1305:
1302:
1298:
1295:) to 33
1294:
1290:
1286:
1282:
1278:
1274:
1270:
1269:
1263:
1261:
1257:
1253:
1249:
1244:
1242:
1238:
1235:
1230:
1228:
1220:Rubber tracks
1210:
1205:
1201:
1199:
1194:
1193:Rubber tracks
1188:
1183:
1176:
1171:
1164:
1159:
1158:
1157:
1155:
1144:
1141:
1136:
1132:
1128:
1117:
1112:
1110:
1100:
1098:
1094:
1090:
1086:
1085:
1079:
1069:
1065:
1062:
1057:
1055:
1051:
1047:
1043:
1029:
1025:
1018:
1013:
1009:
1002:
997:
996:
995:
993:
988:
984:
980:
975:
973:
967:
955:
951:
944:
939:
932:
927:
926:
920:
918:
914:
910:
906:
902:
896:
893:
889:
885:
880:
876:
872:
861:
858:
850:
840:
836:
832:
826:
825:
821:
816:This section
814:
810:
805:
804:
800:
787:
784:
777:
772:
769:
765:
762:The draft of
758:
753:
752:
751:
749:
743:
740:
736:
732:
727:
723:
719:
715:
710:
708:
704:
700:
699:
695:According to
693:
690:
686:
681:
672:
670:
666:
662:
657:
655:
651:
647:
646:Little Willie
637:
635:
631:
619:
614:
613:
612:
610:
606:
602:
598:
594:
590:
589:Snow vehicles
586:
579:Snow vehicles
572:
569:
563:
558:
554:
550:
549:Mojave Desert
546:
539:
534:
533:
532:
530:
526:
521:
519:
515:
511:
507:
504:
500:
481:
476:
471:
468:
467:Chain Tracked
461:
456:
455:
454:
451:
449:
445:
441:
437:
427:
425:
424:Benjamin Holt
419:
417:
413:
399:
395:
392:
388:
386:
382:
381:United States
378:
374:
365:
362:
358:
357:Fyodor Blinov
353:
350:
346:
336:
334:
329:
324:
321:
320:steam tractor
316:
312:
308:
304:
300:
295:
291:
289:
284:
283:James Boydell
280:
274:
261:
257:
253:
249:
248:
243:
234:
232:
228:
224:
221:and inventor
220:
216:
215:George Cayley
212:
202:
200:
196:
192:
188:
184:
180:
176:
172:
168:
163:
161:
155:
153:
149:
145:
141:
137:
133:
129:
125:
120:
118:
114:
110:
106:
100:
97:
92:
86:
81:
75:
71:
68:
63:
56:
52:
48:
28:
23:
19:
3557:
3545:
3314:Evolutionary
3261:Robotic fins
3233:
3214:Robotic fish
3199:Telerobotics
3172:Nanorobotics
3162:Mobile robot
3099:Food service
3094:Agricultural
2944:Competitions
2929:Hall of Fame
2792:. Retrieved
2778:
2767:. Retrieved
2763:the original
2753:
2745:the original
2738:
2728:
2717:. Retrieved
2703:
2692:. Retrieved
2678:
2667:. Retrieved
2661:. Liebherr.
2653:
2645:
2640:
2629:. Retrieved
2615:
2607:
2601:. Retrieved
2597:the original
2592:
2583:
2574:
2554:
2546:
2541:
2522:
2503:
2484:
2473:. Retrieved
2458:
2448:
2438:
2427:. Retrieved
2417:
2410:
2402:
2397:
2390:
2385:
2376:
2367:
2358:
2347:. Retrieved
2327:
2320:
2309:. Retrieved
2295:
2287:
2283:
2270:GB 190416345
2264:
2253:. Retrieved
2239:
2228:. Retrieved
2208:
2195:
2163:
2158:, 1901-01-02
2155:
2151:
2140:. Retrieved
2131:
2103:. Retrieved
2082:
2071:. Retrieved
2051:
2040:. Retrieved
2028:
2016:
1997:
1991:
1979:
1969:
1966:The Engineer
1965:
1955:
1944:. Retrieved
1935:. UK. 1857.
1932:
1920:
1907:
1903:
1894:
1883:. Retrieved
1841:
1835:
1824:. Retrieved
1815:
1806:
1786:
1779:
1759:
1753:
1744:
1738:
1727:. Retrieved
1713:
1700:
1696:
1687:
1676:. Retrieved
1667:
1571:
1561:
1518:
1504:landing gear
1489:Leclerc tank
1411:World War II
1395:
1367:transmission
1364:
1356:
1352:
1245:
1240:
1233:
1231:
1223:
1196:
1150:
1139:
1134:
1130:
1126:
1124:
1106:
1092:
1088:
1081:
1075:
1066:
1058:
1053:
1039:
1027:
976:
968:
964:
897:
868:
853:
844:
829:Please help
817:
799:Linn tractor
744:
711:
696:
694:
682:
678:
658:
652:and Colonel
643:
627:
582:
522:
508:
498:
496:
452:
448:British Army
433:
420:
409:
393:
389:
371:
354:
342:
328:The Engineer
327:
325:
296:
292:
276:
230:
209:The British
208:
164:
156:
143:
139:
135:
121:
116:
108:
104:
103:
96:British Army
67:agricultural
18:
3334:Open-source
3187:Space probe
3177:Necrobotics
3167:Microbotics
3130:Biorobotics
3059:Educational
3042:Articulated
3023:Animatronic
3008:Claytronics
2828:Video clips
1984:Lane (1994)
1537:New Holland
1487:Track of a
1248:half-tracks
1093:slack track
1078:drive wheel
1072:Drive train
1061:torsion bar
992:idler-wheel
952:wheel on a
923:Engineering
901:snowplowing
661:World War I
634:snowmobiles
499:Caterpillar
349:John Fowler
345:Crimean War
288:Crimean War
183:snowmobiles
179:World War I
136:chain track
3601:Propulsion
3575:Categories
3374:Ubiquitous
3364:Perceptual
3271:Navigation
3226:Locomotion
3204:Underwater
3089:Disability
3037:Industrial
2794:2016-11-07
2769:2016-11-07
2719:2013-05-03
2694:2013-05-03
2669:2013-05-03
2631:2011-08-24
2603:2010-11-06
2475:2016-11-08
2429:2016-10-23
2349:2015-08-16
2311:2016-11-07
2255:2011-08-24
2230:2014-12-10
2142:2011-08-24
2105:2013-09-30
2073:2013-09-30
2042:2013-09-30
2007:0900404027
1972:: 327–328.
1946:2014-02-04
1885:2013-09-30
1826:2013-09-30
1729:2009-05-30
1678:2011-08-24
1647:References
1630:Snowmobile
1600:Half-track
1581:protoplasm
1529:John Deere
1437:Obyekt 279
1316:Bulldozers
1299:(230
1291:(190
1283:(100
1266:Advantages
1024:Sd.Kfz. 11
1010:heavy tank
871:motor home
722:locomotive
571:High Drive
529:High Drive
195:excavators
191:bulldozers
144:tank tread
47:dump truck
3425:Figure AI
3383:Companies
3359:Paradigms
3344:Adaptable
3324:Simulator
3018:Automaton
3013:Companion
2924:Geography
1595:Excavator
1566:In nature
1557:Mattracks
1420:halftrack
1418:military
1415:SdKfz 251
1277:M1 Abrams
1042:Panzer IV
888:halftrack
818:does not
748:cylinders
523:With the
503:Aldershot
497:The name
377:Boer Wars
27:bulldozer
3586:Tractors
3547:Category
3465:Symbotic
3415:FarmWise
3369:Situated
3339:Software
3307:Research
3251:Climbing
3074:Military
3069:Juggling
3054:Domestic
2986:Humanoid
2909:Glossary
2890:Robotics
2788:Archived
2713:Archived
2688:Archived
2663:Archived
2625:Archived
2469:Archived
2446:(1922).
2423:Archived
2343:Archived
2305:Archived
2249:Archived
2221:Archived
2136:Archived
2096:Archived
2064:Archived
2033:Archived
1937:Archived
1912:Archived
1876:Archived
1820:Archived
1818:. 1857.
1723:Archived
1705:Archived
1672:Archived
1588:See also
1573:Navicula
1473:sprocket
1469:M60 tank
1312:grousers
1103:Steering
1084:sprocket
972:unsprung
950:sprocket
847:May 2013
731:gasoline
555:in 1909.
516:and the
440:Grantham
414:for the
256:Red Moss
211:polymath
187:tractors
115:used in
51:Kanagawa
3559:Outline
3489:Related
3480:Yaskawa
3395:Anybots
3275:mapping
3244:Hexapod
3239:Walking
3084:Service
3079:Medical
2991:Android
2976:Aerobot
2919:History
2904:Outline
2850:, 2008)
1625:Snowcat
1577:diatoms
1451:Soviet
1409:German
1382:Gallery
1347:Type 10
1307:swells.
1227:chevron
1198:Case IH
1133:track.
1050:Panther
1046:Tiger I
1008:Tiger I
919:, etc.
909:logging
879:trolley
839:removed
824:sources
768:tractor
739:Hornsby
726:haulers
659:During
545:Holt 45
470:Tractor
446:by the
436:Hornsby
385:England
227:Russian
205:History
173:, with
70:tractor
3450:IRobot
3234:Tracks
3155:ground
3150:aerial
3104:Retail
3001:Gynoid
2996:Cyborg
2934:Ethics
2784:"Main"
2648:, 1999
2566:
2534:
2515:
2496:
2335:
2276:
2031:. UK.
2004:
1848:
1794:
1767:
1640:Airoll
1541:Kubota
1533:Yanmar
1082:drive
979:bogies
913:mining
892:diesel
764:Blinov
669:Mark I
465:First
333:Crimea
315:mortar
160:wheels
85:swamps
3420:FANUC
3329:Suite
3194:Swarm
2968:Types
2914:Index
2224:(PDF)
2217:(PDF)
2099:(PDF)
2092:(PDF)
2067:(PDF)
2060:(PDF)
2036:(PDF)
2025:(PDF)
1940:(PDF)
1929:(PDF)
1879:(PDF)
1872:(PDF)
1553:CLAAS
1506:on a
1467:U.S.
1413:-era
1376:train
1360:8 X 8
1109:steer
1089:idler
1080:, or
689:wagon
665:tanks
361:wagon
199:tanks
175:tanks
124:belts
55:Japan
3455:KUKA
3319:Kits
3273:and
2939:Laws
2333:ISBN
2002:ISBN
1846:ISBN
1792:ISBN
1765:ISBN
1545:Case
1521:AGCO
1453:T-55
1344:JSDF
1241:live
1234:more
1200:8240
1140:Live
1135:Dead
1131:dead
1127:live
1048:and
954:tank
822:any
820:cite
793:Linn
543:Two
383:and
305:and
213:Sir
197:and
150:and
3047:arm
1374:or
1301:kPa
1297:psi
1293:kPa
1289:psi
1285:kPa
1281:psi
1129:or
1022:An
886:of
833:by
705:of
438:in
258:at
142:or
126:of
107:or
65:An
3577::
2737:.
2623:.
2606:.
2591:.
2421:.
2375:.
2341:.
2247:.
2219:.
2114:^
2094:.
2062:.
2027:.
1968:.
1964:.
1931:.
1908:45
1906:.
1902:.
1874:.
1860:^
1814:.
1721:.
1699:.
1695:.
1666:.
1655:^
1551:,
1547:,
1543:,
1539:,
1535:,
1531:,
1527:,
1523:,
1342:A
1303:).
1156:.
985:.
948:A
911:,
750:.
701:,
632:,
387:.
347:,
301:,
193:,
189:,
185:,
154:.
94:A
53:,
45:A
2882:e
2875:t
2868:v
2840:)
2836:(
2797:.
2772:.
2722:.
2697:.
2672:.
2634:.
2478:.
2352:.
2314:.
2258:.
2233:.
2203:.
2145:.
2108:.
2076:.
2045:.
2010:.
1986:.
1970:5
1949:.
1888:.
1854:.
1829:.
1800:.
1773:.
1732:.
1701:5
1681:.
1439:)
1202:)
1195:(
860:)
854:(
849:)
845:(
841:.
827:.
57:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.