Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. (1899)
Boyd, James Penny, 1836-1910 · Philadelphia, Pa., A. J. Holman & Co · leaf 378
ing-ing the draw to a close • fit with the abutments. The desired result wasaccomplished by placing at each end of the draw a very short U-shapedstructure, having the same cross section as the cross section of the trough,and having beveled ends fitting corresponding bevels on the ends of thetrough.…
Progress · Inventions
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