Carrier propelling mechanism for power and free conveyors

Details Carrier propelling mechanism for power and free conveyors Carrier propelling mechanism for power and free conveyors

1976-08-03

1978-01-31

Spar, Robert J.

Railways

Traction

Chain

104 96, 104 98, 104127, 198485, 198738, 214 161DB, B61B 1002

Patent

active

040709728

ABSTRACT:
Propelling mechanism for forwarding a carrier of a power and free conveyor from the delivery end of a first carrier supporting track onto a track section of an elevator and thence onto the receiving end of a second carrier supporting track. The elevator includes a carriage to which the track section is attached and which is movable longitudinally to permit the track section to be extended from the elevator into registry with either the first or second carrier supporting track. A propelling member, consisting of a pair of roller chains connected in spaced side-by-side relation, is equipped at one end with a carrier pusher, is connected at the other end to an endless output chain of a reversible drive mounted on the carriage, and is supported and guided by tracks which extend parallel to the track section from the entrance end thereof and into a storage path parallel to the path of the endless output chain. When the drive is operated in the reverse direction, the pusher-equipped end of the propelling member is extended from the storage path toward the delivery end of the first carrier supporting track until a carrier is engaged by the pusher. Operating the drive in the forward direction causes the carrier to be forwarded along the track section until the propelling member is returned to the storage path, when additional pushers mounted on the endless output chain are successively engageable with trolleys of a multiple-trolley carrier. These pushers are operable to forward such a carrier from the track section to the receiving end of the second carrier supporting track.

REFERENCES:
patent: 2791338 (1957-05-01), Thaon De Saint-Andre
patent: 3926125 (1975-12-01), Orwin

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