Conveyor system with alternative carrier propulsion

Details Conveyor system with alternative carrier propulsion Conveyor system with alternative carrier propulsion

1984-09-13

1986-03-11

Reese, Randolph A.

Railways

Traction

Pusher

104172B, 104250, 104292, 1984651, B61B 1312, B65G 3700

Patent

active

045747067

ABSTRACT:
A conveyor has vertically spaced carrier and power tracks respectively supporting carriers and primary pushers, each carrier being propellable by a driving dog movable between retracted and extended positions and drivingly engageable only in the extended position by one of the primary pushers. Carriers are also advanceable along a portion of the carrier track from engagement of their driving dogs by secondary pushers movably connected to a reciprocatable transfer member supported alongside of the power track and driven on forward and return strokes by a linear motor. When operational, the secondary pushers are moved to a driving position, each driving dog engaged by a secondary pusher is held thereby in retracted position, and carriers are advanced by a forward stroke of the transfer member. When non-operational, the secondary pushers remain in a non-driving position, the driving dogs remain in extended position, and carriers are propelled by the primary pushers.

REFERENCES:
patent: 2619916 (1952-12-01), Rainier
patent: 3179064 (1965-04-01), Dehne
patent: 3260220 (1966-07-01), Ludwig
patent: 3286652 (1966-11-01), Ringwood et al.
patent: 3516361 (1970-06-01), Hart
patent: 3641939 (1972-02-01), Remy
patent: 4006691 (1977-02-01), Kacir et al.
patent: 4269298 (1981-05-01), Mergl
patent: 4527611 (1985-07-01), Clark

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