Sheet feeding or delivering – Feeding – Separators
Patent
1975-11-12
1977-04-26
Blunk, Evon C.
Sheet feeding or delivering
Feeding
Separators
271 10, B65H 322
Patent
active
040197298
ABSTRACT:
The disclosure relates to a novel apparatus for lowering and lifting a ply picking unit into controlled pressure contact with the top ply of a stack of limp plies. The picking unit is supported by a lifting lever, which is pivotally mounted on a frame. An actuator, operable through a predetermined stroke, is interconnected with the lifting lever by a slideable connector, with an adjustable spring acting between the actuator and the slideable connector. The apparatus of the invention further includes means independent of the actuator for effectively, substantially balancing the lifting lever. The novel combination of a balanced lifting lever, actuator, slideable connector and adjustable spring results in an improved lever action, for lowering and lifting the ply picking unit, that is positive in operation and accurately adjustable to meet the particular requirements of an overall apparatus to nip and lift limp plies from a stack thereof.
REFERENCES:
patent: 747865 (1903-12-01), Dexter et al.
patent: 3353821 (1967-11-01), Smith et al.
patent: 3442505 (1969-05-01), Szentkuti
patent: 3588091 (1971-06-01), Stone et al.
Blunk Evon C.
Cluett Peabody & Co., Inc.
Stoner Jr. Bruce H.
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