Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By laterally or vertically moving successive items in...
Patent
1974-08-07
1976-05-25
Blunk, Evon C.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By laterally or vertically moving successive items in...
B65G 1302
Patent
active
039586847
ABSTRACT:
The invention provides an improved accumulating conveyor having a frame with a plurality of roller carriages mounted transversely. Each of the roller carriages comprises a pair of spaced end portions and a connecting portion connecting a lower part of these end portions. A pressure roller is rotatably mounted in a lower portion of each roller carriage, and a conveyor roller is rotatably mounted in an upper portion, parallel to and spaced from the pressure roller. An endless belt is mounted on the frame, and is positioned to pass between the pressure rollers and the conveyor rollers, the belt having a thickness less than the distance between the conveyor and pressure rollers. The belt has a thickened portion which has a thickness at least equal to the distance between the pressure and conveyor rollers, so that passage of the thickened portion causes rotation of these rollers. An intermittent drive force is thereby delivered to the conveyor rollers, and the presence of an article on the conveyor, or the movement of an article along the conveyor, causes the roller carriages to tilt into engagement with the drive belt. Stoppage of articles on the conveyor causes the carriages to tilt into a rearwardly titled position, so that no drive force is applied except by passage of the thickened portion of the belt.
REFERENCES:
patent: 2253198 (1941-08-01), Regan
patent: 3199657 (1965-08-01), Harrison
patent: 3502197 (1970-03-01), Kato et al.
A W & H Manufacturing Co., Inc.
Blunk Evon C.
Valenza Joseph E.
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