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Knight's Mechanical Encyclopedia (ed. Knight) 17 1 Browse Search
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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
recoil, and also for railroad-cars. See pneumatic spring. A-tom′ic weights. The appended list of chemical equivalents differs much from those of older and other authorities, but is offered as the best within the reach of the present writer. It differs also from a short list of chemical equivalents on page 66. Table of atomic weights. Compiled according to the Latest Determinations, for the Use of the Students of the School of Mines, Columbia College, Jan., 1872. by C. F. Chandler, Ph. D. Hydrogen = 1. symbol.old.New. Oxygen,O.8.16. Aluminium,Al.13.727.4 Antimony,Sb.122.122. Arsenic,As.75.75. Barium,Ba.68.5137. Bismuth,Bi.210.210. Boron,B.11.11. Bromine,Br.80.80. symbol.old.New. Cadmium,Cd.56.112. Caesium,Cs.133.133. Calcium,Ca.20.40. Carbon,C.6.12. Cerium,Ce.45.791.3 Chlorinc,CL.35.535.5 Chromium,Cr.26.152.2 Cobalt,Co.30.60. Columbium,Cb.94.94. Copper,Cu.31.763.4 Didymium,D.47.595. Erbium,E.56.3112.6 Fluorine,F.19.19. Glucinum,Gl.4.69.
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
the ground before blackleading, so as to make elevations at those points which become depressions in the electro-cast. This process was adopted by Jewett and Chandler of Buffalo for many years in making the cuts for the Patent Office reports, and is still practiced by Mr. Chandler in making the cuts forming the illustrations oMr. Chandler in making the cuts forming the illustrations of this Dictionary and numerous other works. Re-lief′–pro′cess. See photo-relief process. Reme-dy. （Coining.) The allowance at the mint for deviation from the exact standard fineness and weight of coin. In England the remedy of the mint is: Gold, 12 grains per pound in weight; 1/16 of a carat in fineness. Silver, 1 intervening charcoal; the pack placed on an anvil, which is made to travel to and fro beneath a gang of hammers; reheated; rehammered; annealed. No. 21, 817, Chandler, 19, 10, 1858. Sheets are rubbed with or dipped into a paste of clay or peat, and metallic oxides; rolled, cleaned, made into a pack, and rerolled. No. 31,1
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
1871. 128,770WestJuly 9, 1872. 129,974ManningJuly 30, 1872. 130,116Fairfield et al.Aug. 6, 1872. 130,674WestAug. 20, 1872. 130,675WestAug. 20, 1872. 133,757ChandlerDec. 10, 1872. 136,976DinsmoreMar. 18, 1873. 139,368ChandlerMay 27, 1873. 141,332CushmanJuly 29, 1873. 142,442CushmanSept. 2, 1873. 145,515ManningDec. 16, 18ChandlerMay 27, 1873. 141,332CushmanJuly 29, 1873. 142,442CushmanSept. 2, 1873. 145,515ManningDec. 16, 1873. 153,718ManningAug. 4, 1874. 5. Mounting Machines on Table. No.Name.Date. 27,926PerkinsApr. 17, 1860. 41,393PilbeamJan. 26, 1864. 47,560NiederpruemMay 2, 1865. 97,481CowgillDec. 7, 1869. 105,548ChaseJuly 19, 1870. 119,784ParhamOct. 10, 1871. 152,829ColesJuly 7, 1874. 6. Needles. 17,272GarveyMay 12, 1857. 24,892Si 11, ‘66.70,072.Brown, Oct. 29, ‘67. 65,266.Perrin, May 28, ‘67.70,318.Brown, Oct. 29, ‘67. 68,695.Brown, Sep. 10, ‘67.70,945.Angell, Dec. 10, ‘67. 71,852.Chandler, Dec. 10, ‘67.127,318.Devol, May 28, ‘72. 75,500.Walkins, Mar. 10, ‘68.133,332.Murphy, Nov. 26, ‘72. 79,923.Smith, July 14, ‘68.135,427.Hastings
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
ry construction are used, but each cylinder and piston has ports so arranged as to form induction and eduction passages. Each of the pistons forms an induction-valve for the piston in advance and an eduction-valve for the piston in the rear. Chandler's piston water-meter. Chandler's meter (Fig. 7114) is one of the reciprocating-piston class. The water, entering by the induction-pipe a, passes through ports b to the interior of a valve e, having a reciprocatory motion within the piston, Chandler's meter (Fig. 7114) is one of the reciprocating-piston class. The water, entering by the induction-pipe a, passes through ports b to the interior of a valve e, having a reciprocatory motion within the piston, which consists of two heads d d′ connected by rods l l; flowing through the ports f f. it forces the piston away from the head e of the case toward the bead e′, the water contained between the latter and the head d′ of the piston passing through the ports g g between the valve and the piston to the discharge-opening h of the meter. On approaching the head e′, the spiral spring h′ on the rod i strikes against this head, reversing the movement of the valve by means of a lever k, one end of w