Railways – Traction – Chain
Patent
1978-03-31
1980-07-08
Kunin, Stephen G.
Railways
Traction
Chain
104178, B61B 1312, B65G 1742
Patent
active
042111722
ABSTRACT:
An apparatus for transmitting force between a tow cart and an in-floor conveyor that includes a pin that pivots out of engagement with the conveyor when the cart meets an obstruction. The motion of the pin when disengaging from the conveyor places another pin in position to engage another drawing position of the conveyor. The pins are movable along their longitudinal axes to follow the profile of the conveyor when moving into and out of engagement with it.
REFERENCES:
patent: 2971474 (1961-02-01), Klamp
patent: 3091191 (1963-05-01), Fur
patent: 3161145 (1964-12-01), Gavgill et al.
patent: 3565012 (1971-02-01), Nearman
patent: 3653328 (1972-04-01), Abram et al.
patent: 3973503 (1976-08-01), Parker et al.
Chapman Walter H.
Hiland David E.
Knies Erwin B.
Oberlin Robert E.
E. I. Du Pont de Nemours and Company
Kunin Stephen G.
Williams Lawrence E.
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