Document hopper

Details Document hopper Document hopper

1976-06-10

1977-03-15

Schacher, Richard A.

Sheet feeding or delivering

Delivering

To receiver for pack of sheets

B65H 4304

Patent

active

040120368

ABSTRACT:
A document hopper having a platform which can be lowered and elevated. The platform is operably connected to a rotatable leadscrew through a shoe engaging the threads of the leadscrew. The leadscrew is held against rotation by a pawl engaging a detent about one end of the leadscrew. When so held, the platform is maintained at a determined height. When the pawl is withdrawn from the detent, the weight of the platform against the shoe is sufficient to cause rotation of the leadscrew. Upon rotation of the leadscrew, the platform is lowered. When lowered a desired extent, the pawl is permitted to reengage the detent. Elevation of the platform is manual with the leadscrew rotating and the pawl ratcheting over the detent.

REFERENCES:
patent: 2990174 (1961-06-01), Kimbrough
patent: 3107912 (1963-10-01), Fiehl

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