Railways – Traction – Chain
Patent
1975-03-18
1976-10-19
Spar, Robert J.
Railways
Traction
Chain
188 60, B61B 1002
Patent
active
039864588
ABSTRACT:
A train comprises a towing car and at least one free car connected to the towing car and having a car body. At least one of the free cars is a load-carrying free car, which comprises two pairs of guide rollers and carries a load suspended from the car body. A track carries the train and comprises a lower track rail, which has an upwardly facing backing surface engageable by the guide rollers. A driving chain extends along the track and is operable to move along the track. Coupling is provided for releasably coupling the towing car to the driving chain for movement therewith along the track in such a direction that the towing car precedes the at least one free car. Carried by one of the load-carrying free cars is a horizontal pivot which is fixed to the car body, a retaining member which is mounted on the pivot for pivotal movement and extends adjacent to the lower track rail and substantially at right angles to the backing surface, and a backing strip carried by the retaining member and having a knife edge, which by a pivotal movement of the retaining member is engageable with the backing surface. The knife edge is arranged to engage the backing surface under the action of a force exerted by one-half of the load in response to a movement of the original one load-carrying free car opposite to the direction of movement.
REFERENCES:
patent: 3314378 (1967-04-01), Potter et al.
patent: 3354834 (1967-11-01), Orwin
patent: 3357369 (1967-12-01), Dehne
patent: 3426700 (1969-02-01), Klamp
patent: 3672306 (1972-06-01), Dehne et al.
patent: 3759189 (1973-09-01), Desilets
Flocks Karl W.
Pohlig-Heckel-Bleichert Vereinigte Maschinenfabriken Aktiengesel
Reese Randolph A.
Spar Robert J.
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