Patent ID: 6837168
Filing Date: 2005-01-04
Classification: B61J

Abstract:
1. A reversing train positioning system for engaging and moving a railroad car or a trip of coupled cars by engaging bogey wheel truck frames from one side comprising: (a) a dog carriage guideway spaced from and parallel to a railroad track; (b) a dog carriage mounted to operate along said guideway; (c) a carriage drive system including a motor mounted on said dog carriage for operating said dog carriage along said guideway; (d) a first dog member pivotally attached to said dog carriage mounted to pivot in a generally horizontal plane between a retracted position and an extended position wherein said first dog member is positioned to engage a proximate bogey wheel truck frame in a first direction and be deflected by said bogey frame in said first direction in the event that a force limit is exceeded; (e) a second dog member pivotally attached to said dog carriage in opposed spaced relation to said first dog member mounted to pivot in a generally horizontal plane between a retracted position and an extended position wherein said second dog member is positioned to engage said bogey wheel truck frame in a second direction and be deflected by said bogey frame in said second direction in the event that a force limit is exceeded; (f) a first actuating device for pivoting said first dog member; (g) second actuating device for pivoting said second dog member, whereby said first and second dogs and actuating devices operate independently; and (h) flexible supply system attached to move with said carriage and supply operating power to said carriage.