Metal working – Method of mechanical manufacture – Electrical device making
Patent
1977-04-18
1978-03-28
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
296235, 29730, 156213, 156263, 156264, 156305, 156484, 156521, 156578, H01M 214
Patent
active
040807274
ABSTRACT:
A method and machine for assembling sheets of battery plate separator material over the battery plates in envelope fashion and sealing the side edges together is disclosed. The machine feeds battery separator material from a storage roll into a folding station, scores a folding line across the sheet and severs the sheet from the roll, in a length double the height of a battery plate. A battery plate is fed bottom end first against the fold line of the separator sheet, and guides in a folding station cause the sheet to fold over and cover both sides of the plate. The plate and separator envelope are engaged between upper and lower conveyors adjacent to the folding station and carried away. Downstream, a pair of lifting devices positioned on either side of the path of travel of the plate and separator lift the upper edge of the overlapping separator envelope on each side, and a switch is tripped to cause a hot melt adhesive to be applied by nozzles to the lower overlapping separator edges. The plate and envelope are then conveyed through pairs of upper and lower rollers on each side of the conveyor to press together and seal the side edges of the envelope together. The sealed edges may then undergo a trimming operation, so that initial positioning and alignment of the separator plate in the fold of the envelope is made less critical.
REFERENCES:
patent: 2373082 (1945-04-01), Staelin
patent: 2624106 (1953-01-01), Lund
patent: 3892620 (1975-07-01), Heussy
patent: 4026000 (1977-05-01), Anderson
Stolle William H.
Tiegel Ralph G.
Hall Carl E.
Tiegel Manufacturing Company
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