A Treatise Upon Wire, Its Manufacture and Uses, Embracing Comprehensive Descriptions of the Constructions and Applications of Wire Ropes

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Offices of "Engineering", 1891 - Wire - 347 pages
A classic work and culturally important on the history, manufacture and uses of wire rope. Illustrated. (lag).

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Page 100 - ... in the United States of America and on the Continent of Europe.
Page 145 - Weight per Statute Mile. Approximate Equivalent Diameter. Minimum Breaking Weight. Minimum No. of Twists in 3 inches. Maximum Resistance per Mile of Wire (when hard) at 60 deg.
Page 18 - But art offers no example wherein the cost of the material is so greatly enhanced by human skill as in the hair spring of a watch.
Page 48 - ... engraving. For the description of this I am again indebted to Mr. J. Bucknall Smith's before-mentioned work. "According to this arrangement the rolls D and E are superimposed so that a bar or rod passed through the first or top set is turned backwards by the curved passage I, so as to be automatically fed into the lower set. The working parts are suitably carried by the framing F, whilst the proper relative position of the rolls may be adjusted by the screw devices shown at G and H. A 'rod train...
Page 150 - The wire is to be drawn in continuous pieces of the weights given in the table. Each piece must be warranted not to contain any weld, joint, or splice whatever, either in the rod before it is drawn, or in the finished wire. (3...
Page 18 - The chisel of the sculptor,' as Mr Thomson justly remarks, * may add immense value to a block of marble, and the cameo may become of great price from the labour bestowed, but art offers no example wherein the cost of the material is so greatly enhanced by human skill as in the balance-spring.
Page 3 - ... drawing" as practised at the present time. In the middle ages this industry was extensively pursued, and the artificers thus engaged were termed, jn the trade, "wire-smiths," but in the earliest days of the manufacture, gold, silver, and bronze appear to have been the only metals so treated. It is, however, fairly substantiated by technical records that the present method of
Page 150 - Fahr., and retained there one minute; it shall then be withdrawn and wiped dry ; this process shall be performed four times.
Page 172 - It has been previously stated that round wire ropes of ordinary construction have the component wires of their strands twisted in one direction, whilst the strands forming the rope are closed the opposite way about.
Page vii - ... in, or applicable to, innumerable industries and purposes of daily service to all classes of the community.

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