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In 1803 a chance observation of molten iron cooling on a stone floor led to an important invention in connection with ploughs: the chilling of the underside of ploughshares by casting them on an iron mould, the upper part of the mould being of sand. In this manner the underside of the share was
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chilled and made harder than steel, while the upper part remained soft and tough. The upper part wearing away faster than the lower, a sharp cutting edge was thus maintained, and less draught required. By the use of these shares the necessity of continually laying and sharpening of
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with a small brass-foundry, which afterwards expanded into an iron-foundry near
Whitefriars Bridge. He possessed inventive skill, and in 1783 took out a patent for
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and rented premises in St
Margaret's Ditches and established a foundry there with a single worker, William Rush. On 21 March he announced in the
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who suffered frequent imprisonment while on preaching journeys in various parts of
England, Ireland, and Holland; he died in Bristol in 1716.
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144:(son of James Ransome) was a notable partner of the family business, and an agricultural writer.
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On leaving school Robert was apprenticed to an ironmonger; he later started his own business in
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He took out a further patent on 30 May 1808 for improvements in the wheel and swing ploughs.
47:, son of Richard Ransome, a schoolmaster. His grandfather, Richard Ransome, was a miller of
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that he had cast iron ploughshares for sale, and would buy old cast iron.
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was through this instrument. The later years of his life were spent in
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in 1784. On 18 March 1785 he took out a patent for tempering cast iron
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Ransomes 1789-1989:200 years of excellence: A bicentennial celebration
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249: This article incorporates text from a publication now in the
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272:. Vol. 47. London: Smith, Elder & Co. pp. 293–294.
193:. Vol. 47. London: Smith, Elder & Co. pp. 293–294.
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He retired from business in 1825. In his retirement he learned
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230:. Oxford University. London and Cambridge, Macmillan and Co.
110:(1782–1849) and Robert (1795–1864), and the firm, known as
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Directions for Laying
Ransome's Patent Cast-iron Coverings
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shares was avoided. This invention was at once adopted.
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106:Ransome was joined in business by his two sons
118:at Ipswich being constructed by them in 1819.
27:(1753 – 7 March 1830) was an English maker of
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227:Popular astronomy: a series of lectures
209:Weaver, Carol; Weaver, michael (1989).
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269:Dictionary of National Biography
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190:Dictionary of National Biography
297:People from Wells-next-the-Sea
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66:roofing plates, and published
33:Ransomes, Sims & Jefferies
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224:Airy, George Biddell (1866).
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129:’s first view of the planet
20:Robert Ransome (1753 – 1830)
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43:Robert Ransome was born in
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82:In 1789 Ransome moved to
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180:"Ransome, Robert"
29:agricultural implements
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256:Smith, Charlotte Fell
175:Smith, Charlotte Fell
123:copperplate engraving
39:Early life and career
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142:James Allen Ransome
135:Woodbridge, Suffolk
307:History of Ipswich
112:Ransome & Sons
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302:English inventors
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264:Lee, Sidney
239:Attribution
185:Lee, Sidney
281:Categories
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258:(1896). "
64:cast iron
177:(1896).
127:G B Airy
266:(ed.).
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187:(ed.).
84:Ipswich
78:Ipswich
60:Norwich
262:". In
131:Saturn
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183:. In
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199:^
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