The Warner & Swasey Company, L880-1920

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Bartlett Orr Press, 1920 - 60 pages
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Page 55 - The War Department of the United States of America recognizes in this award for distinguished service the loyalty, energy and efficiency in the performance of the war work by which HW Clark Co.
Page 40 - Ss^asey designed and built a dividing engine capable of Dividing circles of 40 inches in diameter with an error of less than one second of arc. A second of arc subtends about one-third of an inch at the distance of one mile. Although the graduations on the inlaid silver band of this machine are so fine that they can scarcely be seen with the naked eye, the width of each line is twelve times the maximum error in the automatic graduations which the machine produces. Although their reputation as telescope...
Page 40 - ... same direction; otherwise, they will oppose instead of assist one another, as they should do. In very sensitive galvanometers there is very little clearance between the coils, the needles are very short, the whole suspended system weighs only a few milligrams, and the suspending quartz or silk fibers are so fine that they can scarcely be seen with the naked eye. Galvanometers of this type may be made to distinctly detect currents that are as small as .000000000001 or 10 " " ampere. Although the...
Page 13 - Machine for producing true theoretical curves from which cutters for gear teeth are made. He invented also a new gear-cutting machine for generating and at the same time cutting the teeth of spur gears, the process being a solution of the difficult problem in the interchangeable system of gearing.
Page 25 - The severest tests show that the greatest errors of this engine are less than one second of arc. A second of arc subtends about one-third of an inch at the distance of one mile. Although the graduations on the inlaid silver band of this machine are so fine...
Page 12 - Society, a Fellow of the Royal Astronomical Society, and of the American Association for the Advancement of Science.
Page 53 - ... send them succor. General Sullivan entered the ravaged territory and defeated the Tory forces at Newtown (August 29, 1779), checking them for a time,* though they returned and con1 Pa. Archives, VI., 626, 634, 647, 664. 1 Clinton, Papers, IV., 266-300. tinued their reign of terror until the close of the war. During the first two years of the war the southern frontier was ravaged by Indians who were incited and aided by American friends of the king. In the Northwest, too, the Tories were of great...
Page 13 - Cleveland, conferred upon him the degree of Doctor of Engineering, and in 1910 he received the degree of Doctor of Science from Denison University, Granville, Ohio. He was one of the forty-eight men who organized the American Society of Mechanical Engineers.
Page 72 - ALL BOOKS MAY BE RECALLED AFTER 7 DAYS Renewals and Recharges may be made 4 days prior to the due date. Books may be Renewed by calling 642-3405. DUE AS STAMPED BELOW mr FORM NO.
Page 14 - So far as is known, this is the first instance of a foundation devoted to engineering purposes, an establishment of a means of promoting the good of mankind through the work of the engineer along the broadest lines.

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