| 摘要 |
701,642. Batteries ; direct connections between conductors. YARDENY INTERNATIONAL CORPORATION. Dec. 6, 1950 [Dec. 6, 1949], No. 29914/50. Classes 38 (1) and 53 An accumulator is provided with a valved gas exit comprising a perforated seat 27 in the cover which is normally closed by a ball 30 pressed against the seat by a plug 29 of sponge rubber. Below the gas exit is a loose baffle 43 resting on a felt strip 44 supported on the electrodes. The latter may consist of a negative plate 24 of compressed powdered zinc or zinc oxide surrounded by wrappings of absorbent paper and regenerated cellulose. The zinc oxide may be made into a paste with kaolin and electrolyte which may be a solution of caustic potash. Embracing the negative electrode on two faces is the positive electrode 23 which consists of powdered silver or its oxide enclosed in regenerated cellulose wrappings. The terminal wires 35, 36 leading from the electrodes are connected by solder 39 to terminal caps 37 which rest on washers 41. Fig. 7 shows a modification in which the gas exit 127 is situated at the bottom of the battery and is closed by a plug of sponge rubber 129. A loose baffle 143 is supported by three legs 106 and carries a felt disc 144, an apertured spacer 108 and the positive and negative electrodes 123, 124, the latter of which is connected to a metal cap 101 through solder 139, a metal insert 137 and a spring washer 104. Before insertion in the battery the positive electrode is prepared by suspending it in a bath of electrolyte contained in an outer vessel from which the air can be exhausted to remove air from the electrode and cause it to become saturated with electrolyte. Figs. 5 and 6 show a method of connecting the wire 35 to the cap 37. Pieces of solder 39<SP>1</SP> are introduced into the inverted cap and the cover of the battery 'carrying the wire 35 lowered till the boss 31 enters'the cap and causes the wire to buckle. The cover is then inverted into the position shown in Fig. 6 and the solder melted by heating electrodes 52, 53, pressure being simultaneously applied by a member 51 to force the cap into contact with the washer 41. Specifications 680,793, 682,164, 682,165, 698,405, 701,641 and 701,644 are referred to. |
