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Drafting machines were present in the design offices of
European companies since the 1920s. The Encyclopædia Britannica explicitly specifies 1930 as the year this tool was introduced, but an advertisement of "Memorie di architettura pratica" from 1913 places it twenty years before this date—at
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The drafting machine was invented by
Charles H. Little in 1901 (U.S. Patent No. 1,081,758), and he founded the Universal Drafting Machine Company in Cleveland, Ohio, to manufacture and sell the instrument.
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With the drafting machine one can perform a series of drawing operations that otherwise could only be achieved with a much more complex use of the classic
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double-sized boards, to make large drawings, or copying-boards with background illumination, which have all that is necessary to provide specific support.
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262:(CAD), the use of drafting machines, especially in the professional sector, has drastically declined, supplanted first by pen
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can be achieved in the most convenient way on a working surface that can be tilted at any angle from horizontal to vertical.
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position throughout its range of motion. The arms were balanced by a system of counterweights or
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In the older design sets, the movement of the protractor head was assured by a
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The
National Cyclopaedia of American Biography, vol.36 (1950), p.341.
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with a hard and smooth surface, anchored to a base that allows its
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lines, inclined lines according to a preset angle, measurement of
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Ercole
Marelli offices, Sesto San Giovanni. Photo by
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125:Drafting machine attached to a drawing board.
325:Farago, Francis T.; Curtis, Mark A. (1994).
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199:system that could keep the head in the same
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331:. Industrial Press Inc. pp. 253–255.
109:Learn how and when to remove this message
218:and lifting. Thus, the realization of a
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210:Typically, the machine is mounted on a
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47:adding citations to reliable sources
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328:Handbook of Dimensional Measurement
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287:Hearst Magazines (December 1993).
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225:There are special versions for
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431:Coordinate-measuring machine
141:head that allows an angular
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16:Tool for technical drawing
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258:With the development of
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260:computer-aided design
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167:Drawing board with a
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650:Cutting and abrasive
486:Laser measuring tool
295:. Hearst Magazines:
43:improve this article
391:and alignment tools
289:"Popular Mechanics"
596:Thread pitch gauge
421:Combination square
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133:is a tool used in
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58:"Drafting machine"
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401:Architect's scale
293:Popular Mechanics
135:technical drawing
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99:November 2023
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60: –
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54:Find sources:
48:
44:
38:
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32:This article
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26:
21:
20:
586:Tape measure
571:Straightedge
561:Steel square
556:Spirit level
551:Speed square
526:Radius gauge
491:Lesbian rule
461:French curve
451:Feeler gauge
440:
406:Beam compass
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308:. Retrieved
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41:Please help
36:verification
33:
700:Woodworking
476:Laser level
456:Flat spline
181:Paolo Monti
716:Categories
601:Try square
591:Theodolite
536:Set square
521:Protractor
511:Micrometer
506:Meterstick
416:Chalk line
249:orthogonal
241:protractor
197:pantograph
139:protractor
69:newspapers
516:Plumb-bob
389:Measuring
305:0032-4558
655:Forestry
645:Cleaning
581:T-square
411:Calipers
264:plotters
247:lines,
245:parallel
143:rotation
680:Masonry
670:Kitchen
621:Wiggler
566:Stencil
541:Skirret
426:Compass
255:, etc.
220:drawing
216:tilting
205:springs
201:angular
183:, 1963.
83:scholar
690:Mining
660:Garden
576:Square
335:
310:7 July
303:
253:angles
237:square
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695:Power
531:Ruler
274:Notes
234:ruler
90:JSTOR
76:books
665:Hand
611:Vise
333:ISBN
312:2011
301:ISSN
239:and
148:The
62:news
471:Jig
299:–.
45:by
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