Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By laterally or vertically moving successive items in...
Patent
1975-06-02
1977-08-16
Paperner, L. J.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By laterally or vertically moving successive items in...
198627, 198859, 214 6H, 214 6TS, 214 85D, B65G 5704
Patent
active
040421244
ABSTRACT:
In a pan unstacking and stacking system, stacks of pans are vertically positioned by pairs of spaced, parallel lift chains and pan engaging members mounted thereon. The lift chains are driven by drive shafts and drive sprockets which engage the upper and lower courses of a drive chain, respectively, thereby permitting adjustment of the spacing between the pan engaging members to accommodate pans of various sizes. The drive chain is in turn driven by a fluid powered cylinder operating through a clutch and brake apparatus to control the vertical positioning of the pan engaging members and pan stacks mounted thereon. Pans are transferred laterally relative to pan stacks supported on the pan engaging members by means of magnets positioned along a line in a horizontal plane situated above a stack and V-belts mounted for rotation around parallel courses situated on opposite sides of the line of magnets and including horizontal portions extending coincident therewith. To effect unstacking, magnets are lowered to engage the uppermost pan from a stack and then are raised to engage the pan with the belts, whereby the pan is transferred laterally. To effect stacking, the belts position a pan above the pan engaging members, after which the pan is pushed downwardly out of the field of the magnets and is dropped onto the stack.
REFERENCES:
patent: 3047095 (1962-07-01), Bell et al.
patent: 3101851 (1963-08-01), Heide et al.
patent: 3533517 (1970-10-01), Heide
patent: 3770143 (1973-11-01), Breitbach
patent: 3905595 (1975-09-01), Adams et al.
patent: 3933254 (1976-01-01), Pulver et al.
patent: 3937335 (1976-02-01), Lanham et al.
Bowdry, III William Perrin
Wickam Irwin Edward
Paperner L. J.
Stewart Engineering & Equipment Co.
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