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81 Renold, Hans
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 31 July 1852 Aarau, Switzerlandd. 2 May 1943 Grange-over-Sands, Lancashire, England[br]Swiss (naturalized British 1881) mechanical engineer, inventor and pioneer of the precision chain industry.[br]Hans Renold was educated at the cantonal school of his native town and at the Polytechnic in Zurich. He worked in two or three small workshops during the polytechnic vacations and served an apprenticeship of eighteen months in an engineering works at Neuchâtel, Switzerland. After a short period of military service he found employment as a draughtsman in an engineering firm at Saint-Denis, near Paris, from 1871 to 1873. In 1873 Renold moved first to London and then to Manchester as a draughtsman and inspector with a firm of machinery exporters. From 1877 to 1879 he was a partner in his own firm of machine exporters. In 1879 he purchased a small firm in Salford making chain for the textile industry. At about this time J.K.Starley introduced the "safety" bicycle, which, however, lacked a satisfactory drive chain. Renold met this need with the invention of the bush roller chain, which he patented in 1880. The new chain formed the basis of the precision chain industry: the business expanded and new premises were acquired in Brook Street, Manchester, in 1881. In the same year Renold became a naturalized British subject.Continued expansion of the business necessitated the opening of a new factory in Brook Street in 1889. The factory was extended in 1895, but by 1906 more accommodation was needed and a site of 11 ½ acres was acquired in the Manchester suburb of Burnage: the move to the new building was finally completed in 1914. Over the years, further developments in the techniques of chain manufacture were made, including the invention in 1895 of the inverted tooth or silent chain. Renold made his first visit to America in 1891 to study machine-tool developments and designed for his own works special machine tools, including centreless grinding machines for dealing with wire rods up to 10 ft (3 m) in length.The business was established as a private limited company in 1903 and merged with the Coventry Chain Company Ltd in 1930. Good industrial relations were always of concern to Renold and he established a 48-hour week as early as 1896, in which year a works canteen was opened. Joint consultation with shop stewards date2 from 1917. Renold was elected a Member of the Institution of Mechanical Engineers in 1902 and in 1917 he was made a magistrate of the City of Manchester.[br]Principal Honours and DistinctionsHonorary DSc University of Manchester 1940.Further ReadingBasil H.Tripp, 1956, Renold Chains: A History of the Company and the Rise of the Precision Chain Industry 1879–1955, London.J.J.Guest, 1915, Grinding Machinery, London, pp. 289, 380 (describes grinding machines developed by Renold).RTS -
82 כתף
כָּתֵףm. (b. h.; v. כָּתַף) 1) joint, shoulder. Shebi. III, 9 אבני כ׳ באיןוכ׳ heavy stones may be taken in the Sabbatical year from any place (their size showing their designation for building purposes); כל שהן נטלות … על הכ׳ those which are carried, two or three at a time, on the shoulder. B. Mets.68b; Tosef. ib. V, 6 מקום שנהגו להעלות שכר כ׳ למעות where it is customary to add a remuneration for carriage to the money (to be paid to the partner on settling). Gen. R. s. 56 (ref. to Gen. 22:6) כזה שהוא טוען … על כְּתֵפוֹ like him (the culprit) who carries his cross on his shoulders; a. fr. 2) grapes on an arm of a vine which branches off into twigs, contrad. to נטף grapes hanging down from the trunk. Peah VII, 4 what is gleaning (belonging to the poor, Lev. 19:10)? כל שאין לה כ׳וכ׳ the grapes remaining on a stalk which has no arm (its grapes having been collected) ; expl. Tosef. ib. III, 11; Y. ib. VII, 20a bot., v. פְּסִיגָה.Pl. כְּתֵפִים, כְּתֵיפִים, constr. כִּתְפוֹת. Pesik. R. s. 20 נאה להרכיבה על כ׳ it is proper to carry her on (human) shoulders; a. e.(Yalk. Gen. 161; Y.Sot.I, 17b bot., v. כְּפָתָה.Tosef.Kel.B. Bath. II, 4, v. כָּפִיס. -
83 כָּתֵף
כָּתֵףm. (b. h.; v. כָּתַף) 1) joint, shoulder. Shebi. III, 9 אבני כ׳ באיןוכ׳ heavy stones may be taken in the Sabbatical year from any place (their size showing their designation for building purposes); כל שהן נטלות … על הכ׳ those which are carried, two or three at a time, on the shoulder. B. Mets.68b; Tosef. ib. V, 6 מקום שנהגו להעלות שכר כ׳ למעות where it is customary to add a remuneration for carriage to the money (to be paid to the partner on settling). Gen. R. s. 56 (ref. to Gen. 22:6) כזה שהוא טוען … על כְּתֵפוֹ like him (the culprit) who carries his cross on his shoulders; a. fr. 2) grapes on an arm of a vine which branches off into twigs, contrad. to נטף grapes hanging down from the trunk. Peah VII, 4 what is gleaning (belonging to the poor, Lev. 19:10)? כל שאין לה כ׳וכ׳ the grapes remaining on a stalk which has no arm (its grapes having been collected) ; expl. Tosef. ib. III, 11; Y. ib. VII, 20a bot., v. פְּסִיגָה.Pl. כְּתֵפִים, כְּתֵיפִים, constr. כִּתְפוֹת. Pesik. R. s. 20 נאה להרכיבה על כ׳ it is proper to carry her on (human) shoulders; a. e.(Yalk. Gen. 161; Y.Sot.I, 17b bot., v. כְּפָתָה.Tosef.Kel.B. Bath. II, 4, v. כָּפִיס.
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