Railways – Traction – Chain
Patent
1995-02-17
1996-05-21
Oberleitner, Robert J.
Railways
Traction
Chain
1041721, B61B 700
Patent
active
055179223
ABSTRACT:
A power and free conveyor transfer system includes a number of drive trolleys operating within a free track and being selectively propelled by endless drive chains within a vertically aligned power track. Each drive trolley includes a trolley housing body to which are rigidly attached a pair of downwardly extending lateral arms, each with a rearward facing drive surface. A pivotable drive member is attached to the front end of the trolley housing and extends backward and downward between the lateral arms with a drive dog forming a portion thereof. The drive trolley design facilitates transfer of each drive trolley between non-synchronous delivering and receiving power tracks in a conveyor transfer zone. Within the transfer zone, the delivering and receiving power tracks are at different elevations and approach each other from a relatively large angle to minimize the potential for mechanical interference or jamming.
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Hespe Darrel
Jean-Amans Thierry
Schaller Gerard
Summa David L.
Summa Gareth D.
Bartz C. J.
Mid-West Conveyor, Inc.
Oberleitner Robert J.
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