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Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
t to its position of quiescence. In Fig. 3237, the working parts are supported upon a strong iron frame, at the top or upper end of which are guides a, upon which is a slide having pivoted in it a collar through which is passed the lever b that operates the chisel-stock m. This lever is itself operated by a pitman c from a transverse crank-shaft at the rear end of the frame, and rotated by pulleys d. The slide is connected by a link f with the upper end of a vertical lever g, the lower Bartlett's power mortising-machine. extremity of which is attached to a horizontal chain k passing over two supporting pulleys. The rear end of this chain has a weight h secured to it, and the forward end being passed downward is connected to a treadle i in such manner that by depressing the treadle the vertical lever will be caused to move the slide, and consequently the fulcrum of the chiseloperating lever, farther back, of course increasing the length of the forward arm of such lever, and conseq
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
,450PalmerMay 5, 1863. 45,236FolsomNov. 29, 1864. 46,064BartlettJan. 31, 1865. (Reissue.)2,210BartlettMar. 27, 1866. BartlettMar. 27, 1866. 54,816GoodspeedMay 15, 1866. 56,990PiperAug. 7, 1866. 60,669BartramJan. 1, 1867. 61,176DriggsJan. 15, 1867. (Reissu96HillsAug. 27, 1867. 69,666HodgkinsOct. 8, 1867. 76,385BartlettApr. 7, 1868. 80,889WillmarthAug. 11, 1868. 81,821Rowleyet al.Aug. 11, 1874. 156,171MorianOct. 20, 1874. 159,065Bartlett et al.Jan. 26, 1875. 1. （b.) Shuttles vibrate. No.Na24HardieJune 25, 1861. 34,407ConradFeb. 18, 1862. 34,807BartlettApr. 1, 1862. 60,353FooteDec. 11, 1866. 69,463MichenerOc 1871. 1. Binders. (continued). No.Name.Date. 119,555BartlettOct. 3, 1871. 120,513HallOct. 31, 1871. 120,969HarrisNov155HarrisAug. 9, 1870. 106,489KarrAug. 16, 1870. 107,650BartlettSept. 27, 1870. 107,889EldridgeOct. 4, 1870. 109,585CarlMellenApr. 26, 1870. 118,145PalmerAug. 15, 1871. 119,496BartlettOct. 3, 1871. 155,976RobardsOct. 13, 1874. class H. —
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
is, though it is, in fact, 15 miles southwest of that mountain. This was first proposed by a Piedmontese road-contractor, Joseph Medail of Bardonneche. In 1842, a geological survey was made, resulting in the choice of the line at last actually taken. The work was actually begun in August, 1857, under the superintendence of Someiller, assisted by Grandis and Grattoni, the Piedmontese government having granted a subsidy of 20,000,000 of francs toward carrying it into effect. In 1855, Mr. Bartlett, an English engineer, had patented a rock-drilling apparatus to be operated by air compressed by means of a steam-engine. The idea of using water, instead of an engine, to compress the air, occurred to the Piedmontese engineers, and was adopted. In the use of a compressed air-drill, with water, consists the great novelty in the execution of the work. Drilling Mont Cenis tunnel. Fig. 6776 is a section through Le Gran Vallon, and a plan, showing the course of the tunnel. The hight
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
Antedated. et al., June 25, 1867. 66,140.Fell Antedated. et al., June 25, 1867. 67,992.Lewis, Aug. 20, 1867. 70,990.Gattman, Antedated. Nov. 19, 1867. 77,818.Jacobi, May 12, 1868. 80,168.Hannen, Reissued. July 21, 1868. 83,357.Bartlett, Oct. 27, 1868. 85,796.Dale et al., Patented in England. Jan. 12, 1869. 86,835.Hannen, Antedated. Feb 9, 1869. 89,074.Retkirt, Apr. 20, 1869. 91,267.Repetti, June 15, 1869. 91,466.Mayer, June 15, 1869. 92,816.Gattman, July 20, 1869 95,075.Bradley, Sept 21, 1869. 95,097.Dwelle, Sept. 21, 1869. 95,201.Cuddy, Sept. 28, 1869. 97,355.Dale et al., Nov. 30, 1869. 97,936.Lewis et al., Dec. 14, 1869. 104,434.Cuddy et al., June 21, 1870. 105,431.Cuddy, July 19, 1870. 108,433.Bartlett, Oct. 18, 1870. 108,571.Dwelle, Oct. 25, 1870. 109,125.Hatfield, Nov. 8, 1870. 112,606.Lewis, March 14, 1871. 112,607.Lewis, March 14, 1871. 112,608.Lewis, March 14, 1871. 113,014.Brumlen, Mar. 28, 1871. 114,405.Burridge, May 2, 1871. 11
Knight's Mechanical Encyclopedia (ed. Knight), Z. (search)
Feb. 14, 1860. 32,320.Titterton, Patented in England. May 14, 1861. 33,911.Weissenborn, Dec. 10, 1861. 36,414.Lewis, Sept. 9, 1862. 37,150.Wharton, Dec. 16, 1862. 38,493.Lewis, May 12, 1863. 43,587.Jenkins et al., July 19, 1864. 67,839.Bartlett et al., Aug. 20, 1867. 69,573.Mills, Oct. 8, 1867. 72,032.Hall, Dec. 10, 1867. 73,146.Wetherill, Jan. 7, 1868. 73,147.Wetherill, Jan. 7, 1868. 83,643.Lees, Nov. 3, 1868. 95,484.Jones, Oct. 5, 1869. 108,965.Burrows, Nov. 8, 1870. 138,684.Osgood, May 6, 1873. 136,685.Osgood, May 6, 1873. 139,701.Bartlett, June 10, 1873. 142,571.Lang, Sept. 9, 1873. 145,976.Trotter, Dec. 30, 1873. See also white-lead. Zir-co′ni — a light. One in which a stick of oxide of zirconium is exposed to the flame of oxyhydrogen gas. Invented by Tessie du Motay. It is said to be entirely unaltered by the heat, and to develop more intense light than any other terrous oxide. Zir-co′ni-um. A rare metal obtained from the minerals zircon an<