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Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
the material back from the slit, and then through the slit, or else a thread may be carried from the under side up over the edge of the material, and be locked by the needle in its next descent. The needle may be made to descend through the material and through the slit, by moving the material laterally, as well as forward by the feed, as in patent to Miller, March 7, 1854; or the needle-carrying box may be moved laterally after each stitch, by means of a cam, as in patent to Humphrey, October 7, 1862. The needlethread is locked at each descent by a second thread carried by either a looper or a shuttle. In patent to Sleiner, June 19, 1860, the needle and shuttle operate as in an ordinary machine, but after the shuttle has passed through the loop of needle-thread, a hook catches its thread and passes it in the form of a loop up through the button-hole slit and spreads it in the path of, and the needle enters it at its next descent. In patent to Rehfuss, May 23, 1865, the needle d
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
1873 2. Two Thread. 10,609MillerMar. 7, 1854. 13,353HarrisonJuly 31, 1855. 25,692VogelOct. 4, 1859. 28,788SteinerJune 19, 1860. 28,814RoseJune 19, 1860. 33,619WeitlingOct. 29, 1861. 34,748Deroquigny et al.Mar. 25, 1862. 36,617HumphreyOct. 7, 1862. 36,932HouseNov. 11, 1862. 37,931WeitlingMar. 17, 1863. 39,442HouseAug. 4, 1863. 39,443HouseAug. 4, 1863. 39,444HouseAug. 4, 1863. 39,445HouseAug. 4, 1863. 40,311RehfussOct. 13, 1863. 42,502ParhamApr. 26, 1864. 43,742RehfussAug. 2, 18b. 25, 1873. 23. Stitches. 16,120JohnsonNov. 25, 1856. 17,255BosworthMay 12, 1857. 23,984McCurdyMay 10, 1859. 26,906JohnsonJan. 24, 1860. 27,620DavisMar. 27, 1860. 27,999McCurdyApr. 24, 1860. 34,454WeitlingFeb. 18, 1862. 36,616HumphreyOct. 7, 1862. 39,658JewettAug. 25, 1863. 46,133ParhamJan. 31, 1865. 49,837SibleySept. 5, 1865. 85,891ReedJan. 12, 1869. 86,591ReedFeb. 2, 1869. 90,045HarrounMay 11, 1869. 24. Take-up. 16,382FinkleJan. 13, 1857. 18,102PhelpsSept. 1, 1857. 22,050Co
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
ardening bath. In August, 1858, Henry Waterman patented a plan of drawing the wire lengthwise from the fire through the hardening liquid, and by this means reduced the cost from three dollars a pound to three cents. Waterman's process of tempering wire is said to have brought him $83,000 over all expenses. Fowler's sheet-metal wire-machine. Wire-an-neal′ing. Softening a wire by heat after it has been hardened by drawing or by exposure to cold after heating. G. I. Washburn, October 7, 1862, patented a process for annealing wire in an artifical atmosphere in the pot or vessel, whereby he is enabled to control the degree of or prevent oxidation of the iron or steel being annealed. The object is to keep it bright and prevent scaling, and the consequent necessity for the acid bath. A suggestion published in 1868 gives some detail of a plan for excluding the atmosphere. Large wire as well as small can be annealed, and still retain the brightness it possessed, after passin