Positive retraction trolley stop for power and free conveyors

Details Positive retraction trolley stop for power and free conveyors Positive retraction trolley stop for power and free conveyors

1988-12-13

1990-02-06

Kashnikow, Andres

Railways

Traction

Chain

104252, B61B 1300, B61K 700

Patent

active

048980994

ABSTRACT:
A positive retraction trolley stop mechanism is provided for a power and free conveyor system having a trolley member driven along a track. A depending trolley dog, engaged by drive dogs on a drive mechanism to push the trolley along the track, is movable between upper and lower positions for disengagement and engagement with drive dogs. The stop mechanism includes a pivotal stop arm which is pivoted to an upper position to engage a trolley dog on a trolley to be stopped and supported there by a cam member which is pivoted by a piston and cylinder. The cam member is pivoted out from under the stop arm to release the stop arm to assume its lower non-braking position. A one way or lost motion link is connected between cranks on a cam shaft and a stop arm axle to positively pull the stop arm to its non-braking position. The lost motion link is connected to the cam crank by a link connector which slidably engages a slot in the ink.

REFERENCES:
patent: 2496916 (1950-02-01), Kershaw
patent: 3044416 (1962-07-01), Reibel et al.
patent: 3130685 (1964-04-01), Goodrich et al.
patent: 3195474 (1965-07-01), Dehne
patent: 3418946 (1968-12-01), Yokoi et al.
patent: 3437054 (1969-04-01), Bishop
patent: 3451352 (1969-06-01), Curry et al.
patent: 3477390 (1969-11-01), Dolding
patent: 3503337 (1970-03-01), Haase
patent: 3523504 (1970-08-01), Jones
patent: 3559585 (1971-02-01), Lempio
patent: 3774546 (1973-11-01), Krammer
patent: 3831528 (1974-08-01), Redlichs
patent: 3837289 (1974-09-01), Marshman et al.
patent: 3934516 (1976-01-01), Paglia
patent: 4644869 (1987-02-01), Rhodes

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