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Knight's Mechanical Encyclopedia (ed. Knight) 16 0 Browse Search
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o the tube or quill E, which may be adjusted at a variable distance from the cutters. Machines for shaving off the joints and evening the strips are also used. In Fig. 4184, the first of these objects is effected by inclined knives M, and as the strip is drawn forward by the rolls I‴ I′ I′ I L L′, the pithy under-surface is removed by knives or scrapers d d, after which circular cutting-flanges on the roller F and its fellow trim the edges to an even width. Rattan-shaving machine. Sawyer employs a tubular cutter, having an opening of hexagonal or other polygonal section, surrounded by radial ribs or fins, by which the outer coat is split, and at the same time separated from the interior, which is drawn through the tube. Advantages are claimed for the hexagonally sectional form of the pith as peculiarly adapting it for its destined purposes. Watkins has patented a method of uniting the ends of the separated strips by scarfing, removing the smooth, glossy part from the
etal was cast thin, and probably was serrated by chipping and grinding. Egyptian Sawyer and other mechanics (from Thebes). Saws of the stone age were made by lJuly 26, 1859. 25,002EmswilerAug. 9, 1859. 25,885CrosbyOct. 25, 1859. 25,918Sawyer et al.Oct. 25, 1859. 26,057RoseNov. 8, 1859. 26,234McCurdyNov. 22, 1859. 26, 15, 1870. 100,764HouseMar. 15, 1870. 101,265HirschbuhlMar. 29, 1870. 101,926SawyerApr. 12, 1870. 102,226CooneyApr. 26, 1870. 102,700RehfussMay 3, 1870. 103,444d-Cutters. 16,713BurnhamMar. 3, 1857. 52,398Dennis et al.Feb. 6, 1866. 67,501SawyerAug. 6, 1867. 90,954Neale et al.June 8, 1869. 104,561CroweJune 27, 1870. 106,r. 26, 1870. 103,538AndersonMay 31, 1870. 105,577KassonJuly 19, 1870. 106,730SawyerAug. 23, 1870. 109,366MartinNov. 15, 1870. 110,740ColeJan. 3, 1871. 110,810Whts, as the shrapnell. Among the more prominent American inventions are, — Sawyer's, 1855 (a). This has a layer of soft metal with flanges outside the inner iron
he holder at g, and the movable ring-rail at h. The spindle and the bobbin, held to it by friction, rotate and twist the thread extending from the bobbin through the traveler, and the latter, held back owing to its friction on the race of the ring, detains the yarn and enables the spindle to revolve on its axis oftener than the traveler revolves on the race about the spindle; and this excess of motion on the part of the spindle enables the spun yarn to be wound on the spindle-bobbin. Sawyer's spindle, with ring and traveler. The ring has a double race, so that it may be reversed when worn, and it is confined to the ring-rail by an adjustable holder that permits this ring to be set exactly concentric with the spindle. Trav′el-ing-bag. satchel or carpet-bag. Trav′el-ing-belt pro-pel′ler. (Marine.) A form of propeller in which a belt traverses over twinwheels. Trav′el-ing-crane. A crab for lifting weights, fixed on a truck which moves on rails, on top of