Railway car positioning apparatus
AssigneeHeyl & Patterson, Inc.
InventorsGerard V. Lofink, Carl J. Vozniak
Life of this patent
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Abstract
A pair of laterally spaced wheel chocks are each normally connected in a gap in a railroad track rail, with each chock having a straight upper surface over which car wheels can roll in crossing the gap. Pivotally connected on a horizontal axis to each chock is the rear end of an arm, the front end of which is pivotally connected to a support. Means are provided for lifting the chocks after car wheels have rolled across them, whereby to cause the chocks to engage a pair of car wheels and move them forward on the track. The arms guide the upwardly-moving chocks in paths that result in there being substantially no sliding of the chocks against the wheels.
Claims7
Positioning apparatus for moving railway cars a short distance forward along track rails away from gaps in the rails, comprising a pair of laterally spaced wheel chocks each normally supported in a rail gap and having a straight upper surface over which car wheels can roll in crossing the gap, an arm pivotally connected on a horizontal axis to each chock and extending forward therefrom, means pivotally supporting the front ends of the arms on a horizontal axis, and lifting means for moving the chocks and rear ends of said arms upwardly to raise the chocks bodily out of said rail gaps and above the level of said last-mentioned horizontal axis, whereby the arms will swing the chocks forward to move car wheels engaged by them forward on the track.
Dependencies are inferred from the claim text.