Self contained drum dumper for fork trucks

Details Self contained drum dumper for fork trucks Self contained drum dumper for fork trucks

1985-07-26

1986-10-21

Spar, Robert J.

Material or article handling

Device for emptying portable receptacle

Rotary cradle

414422, 414607, 414642, 414909, 414912, 335285, B65G 6524, B65G 6534

Patent

active

046183060

ABSTRACT:
A drum dumper attachment for fork lift trucks carries its own power plant eliminating all heretofore required hose and other connections to the truck and controlled from the truck operator's seat by a demountable switch connected to the power plant through a single extension cord. The dumper attachment has hollow shoes receiving the truck forks, a rotatable clamp receiving a drum, a hydraulic jack rotating the clamp, an electric motor driven hydraulic pump for the jack, a battery energizing the motor, an electrically controlled valve selectively flowing fluid to and from opposite ends of the jack, and a double pole switch positionable adjacent the operator to energize the motor and the valve for causing the jack to rotate the clamp in opposite directions. The switch may be anchored to the truck by a magnet and the extension cord may be coiled to accommodate positioning of the switch. The attachment is completely self contained and avoids heretofore required couplings, conversion kits, and the like components for energizing a dumper from the hydraulic system of the truck.

REFERENCES:
patent: 2721717 (1955-10-01), Wales
patent: 2756883 (1956-07-01), Schreck
patent: 3726424 (1973-04-01), Du Puis et al.
patent: 3971485 (1976-07-01), Hoppey
patent: 4144981 (1979-03-01), Borgen
patent: 4252495 (1981-02-01), Cook
patent: 4278395 (1981-07-01), Thunell
H. D. Bauer Catalog sheet and English Translation of the Model FD/H Drum Dumper Fork-Lift Truck Attachment.
Catalog sheet entitled "Single Function Auxiliary Hose Kits".

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