Scientific American Supplement, No. 601, July 9, 1887 by Various
page 37 of 131 (28%)
page 37 of 131 (28%)
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hinge.
Ans.--The American joint gives a perfect unbroken surface of entire width of belt, whereas the English hinge joint makes two half widths, and whenever a sudden change of power occurs and the belt runs half way off the pulley, it will catch at the edge and tear everything to pieces. [Illustration: Fig. 6 is an end view.] Quest.--Have you a table or schedule of their weight per square foot? Ans.--Yes. The following is as near as we can estimate the weight of leather link belting per square foot: 1 inch thick, about 5 lb. per sq. ft. 7/8 " " " 4½ " " " 3/4 " " " 4 " " " 5/8 " " " 3½ " " " Upon motion a vote of thanks was passed, and the paper read ordered to be printed. [Illustration: Fig. 7 is a single link.] * * * * * A NEW PROCESS OF CASTING IRON AND OTHER METALS UPON LACE, EMBROIDERIES, |
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