| 摘要 |
337,001. Bumke Ges., H. A. April 8, 1929, [Convention date]. Electrodes.-Dollies for dry cells, i.e. the linen or like sacs containing a carbon and surrounded by powdered carbon and graphite, are carried by a conveyer having a step-by-step movement past a dipping bath, where their lower ends are coated with insulating composition. In the apparatus shown, the dollies 16 are inserted in cylindrical receptacles 15 mounted on a conveyer belt 14, and are carried over a hopper 18 into which they fall and from which they are delivered into apertures 3 in a rotating disc 1. A plate 17 beneath the lower run of the conveyer prevents the dollies falling from the receptacles 15 until they are over the hopper 18. The driving mechanism imparts corresponding step-by-step movements to the conveyer 14 and the disc 1 through a pawl- and-ratchet mechanism 36, 37 and an eccentric pin 10 which engages teeth 4 on the edge of the disc. On entering the hole in the disc, the dolly rests on a stop beneath the latter and is thus positioned vertically. As the disc moves on, a spring-pressed bolt 21, Fig. 3, previously retracted by a cam 23, moves forward and clamps the dolly in position in the aperture. As each dolly arrives in position over a bath 25 of molten insulating composition a dipper 27 carried by a vertically reciprocating slide 30 rises and coats the lower end of the dolly with the composition. When the dipper has fallen, the dolly is carried on over a heated stop 34 which smooths the lower face. The dolly is finally discharged as the bolt 21 which retains it is again retracted on reach. ing the cam 23. |
