Patent GB-808532-A (GB)
Title: Improved electric battery grid pasting machine
Inventor: YOUNG CHARLES AUGUST
IPC: H01M4/20
Filed: 1956-08-20
Abstract: 808,532. Battery grid-pasting machines. ELECTRIC STORAGE BATTERY CO. Aug. 20, 1956, No. 25344/56. Class 53. A machine for pasting accumulator grids comprises a rotatable disc-shaped grid carrier B having a plurality of grid-receiving recesses C, C<SP>1</SP>, each closed at the bottom and at least as deep as the thickness of the grids, and a paste feed mechanism D which slidingly engages the face of the carrier and forces paste into the grid as the carrier rotates. As shown, the carrier B is continuously rotated about a fixed vertical shaft 15 forming part of the frame A. The recesses C are deep enough to contain a grid and sufficient paste to cover one side of the grid and the recesses C<SP>1</SP> are deeper to contain a partly pasted grid obtained from a recess C<SP>1</SP> and sufficient paste to cover the other side of the grid. A wider space is left between the first recess C<SP>1</SP> and the last recess C of the series. The paste feed mechanism D, supported between the frame A and the shaft 15, comprises a fixed bottom plate 40 adjacent the top surface of the carrier member and having a slit 41 formed in it, a block 42 slidable on the plate 40 and having a pair of apertures 43, 44 formed in it and a ram 55 which is forced downwards in a guideway 52 above the slit 41 by a double-acting fluid pressure motor 61. The apertures 43, 44 in the block 42 each hold sufficient paste for one revolution of the carrier, one aperture (43 as shown) being positioned over the slit 41 while the other is accessible for re-filling with paste. When the space between the first and last recesses C<SP>1</SP>, C passes underneath the paste feed mechanism, a trip on the carrier actuates a valve 68 which causes a motor 61 to raise the ram 55. Simultaneously a second trip on the carrier actuates a valve 67 causes a double-acting fluid pressure motor 60 to move the block 42 and position the aperture filled with fresh paste (44 as shown) over the slit 41. A third valve 69 is actuated by a further series of trips on the carrier to cause the motor 61 to apply pressure to the ram only when a recess is passing beneath the slit 41. Prior to starting the machine, the operatorwho stands at the right-hand side of the machine as viewed in the Figures-places previously pasted plates or blanks in the recesses C<SP>1</SP> and unpasted grids in the recesses C intermediate his position and the paste feed mechanism. As the recess C<SP>1</SP> ahead of the first recess C to pass beneath the paste feed mechanism reaches his position the operator removes the blank therein, removes and turns over the partly pasted grid from the immediately trailing recess C and transfers this to the now empty recess C<SP>1</SP> and places an unpasted grid in the recess C just unloaded. A similar procedure is followed during further revolutions of the carrier, the operator also removing fully pasted grids from the recesses C<SP>1</SP>. The apertures 43, 44 in the slide are re-filled with paste by a second operator. The Specification also refers to (a) the provision of automatic means for the loading and unloading of unpasted and pasted grids; (b) replacement of the described form of paste feed mechanism by an Archimedian screw device; (c) the provision of a carrier having corrugations running concentrically about its axis of rotation and a bottom to the paste feed mechanism of complementary shape so that corrugated grids can be pasted.