1976-03-18
1977-09-13
Paperner, L. J.
214 8, B65G 5704, B65H 3126
Patent
active
040476219
ABSTRACT:
Stacking apparatus for ferrous sheets, for example transformer sheets having holes therethrough, comprises a plurality of power-driven magnetic conveyors in lengthwise alignment with each other, for receiving and conveying ferrous sheets on the undersides of the conveyors. Upon deenergization of the conveyors, the sheets fall on a lowerator which is progressively lowered as the stack is formed. If the sheets are pierced, then pins extending vertically above and below the lowerator to a position immediately below the conveyors, engage in the holes in the sheets to align the sheets and retain the stack. The pins do not lower; instead, when the stack is complete, the lowerator and the pins can be removed together transversely of the conveying direction.
REFERENCES:
patent: 1539447 (1925-05-01), Von Pein
patent: 2374174 (1945-04-01), Buccicone
patent: 3014601 (1961-12-01), Swanson
patent: 3132858 (1964-05-01), Bernard
patent: 3523686 (1970-08-01), Cawley
patent: 3946884 (1976-03-01), Kato et al.
Heider Dieter
Stotzel Lothar
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