Conveyors – chutes – skids – guides – and ways – Rollerways – Submerging and rising
Patent
1975-05-23
1977-01-04
Blunk, Evon C.
Conveyors, chutes, skids, guides, and ways
Rollerways
Submerging and rising
188 80, 188262, 193 37, B65G 1300, B65G 3900
Patent
active
040007960
ABSTRACT:
A braking device for retarding and controlling the speed of moving objects such as cartons, pallets and the like, travelling down an inclined roller conveyor system. The device comprises a primary roll journalled in a housing and having a peripheral surface actuable by a said moving object and a secondary roll journalled within the housing actuable by the primary roll. The secondary roll is loosely journalled in a bracket pivotally mounted on an axle coaxial with the primary roll and is biased by an adjustable pressure plate having a bevelled portion at one end to an at-rest position in proximity to the primary roll. Rotation of the primary roll under the weight of an object travelling thereon rotates the secondary roll by frictional interengagement against the bias of the pressure plate whereby the secondary roll becomes wedged between said primary roll and the pressure plate bevelled portion for retarding the rotation of the primary roll.
REFERENCES:
patent: 2390785 (1945-12-01), Eppler
patent: 3314514 (1967-04-01), Hundhausen et al.
patent: 3321057 (1967-05-01), De Good
Bolton Frederick Arthur
Eckebrecht James Louis
Arcan Eastern Limited
Blunk Evon C.
Fors Arne I.
Rowland James L.
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