Material conveyor system comprising powered trolleys on an overh

Details Material conveyor system comprising powered trolleys on an overh Material conveyor system comprising powered trolleys on an overh

1991-12-03

1993-08-03

Oberleitner, Robert J.

Railway rolling stock

Locomotives

Traction regulators

104 93, 105153, B61C 1500

Patent

active

052319334

ABSTRACT:
A conveyor system (10) with an overhead rail (11) has trolleys (12) with an upper drive wheel (13) and lower bucking rollers (15,16) of which at least one is fitted with a spring (17) to provide the necessary traction between drive wheel (13) and rail (11) along sloping paths. The rail (11) has a first unvarying thickness in its horizontal sections (20) and a second thickness, greater than the first, in its sloping sections (21), while the radiused sections (22,23) between horizontal sections (20) and sloping sections (21) have a variable thickness sized to hold substantially constant the compression of the spring (17) along the entire radiused sections (22,23) and in particular, at a value substantially equal to that provided by the spring along the sloping sections (21).

REFERENCES:
patent: 3648617 (1972-03-01), Metzner et al.
patent: 3774548 (1973-11-01), Borst
patent: 4644873 (1987-02-01), Uttscheid
patent: 4716839 (1988-01-01), Catena
patent: 5069141 (1991-12-01), Ohara et al.

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