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US 4,903,611 AGranted
Anchor spreader apparatus and method
AssigneeHolley Engineering Company, Inc.
InventorJohn D. Holley
Life of this patent
Estimating the term…
Abstract
Rail anchors used to secure rails to ties are spread by pushing on the tie plates immediately adjacent to the anchors. A pair of hydraulic cylinders are disposed upon a common rod and are used to push a tie plate in opposite directions, thereby spreading each of two anchors associated with one side of a particular tie.
Claims20
A method of spreading anchors on a rail of a railroad track comprising the steps of:
- clamping an apparatus to the track, the apparatus having a first pusher which is disposed adjacent to a tie plate after the clamping, which tie plate is in turn adjacent to a first anchor and is on top of a tie;
- and
- moving the first pusher generally along the rail in a first direction to engage a first side of said tie plate and push said tie plate against said first anchor such that said first anchor is slid along the rail away from the tie.
A method of spreading anchors on a rail of a railroad track comprising the steps of:
- moving a vehicle until a first pusher on the vehicle is adjacent to a tie plate, which tie plate is in turn adjacent to a first anchor and is on top of a tie;
- and
- moving the first pusher generally along the rail in a first direction to engage a side of said tie plate and push said tie plate against said first anchor such that said first anchor is slid along the rail away from the tie.
Apparatus for spreading anchors mounted to a rail of a railroad track comprising:
- a vehicle;
- a first pusher mounted to the vehicle and operable to engage a tie plate;
- and
- a first motor means operable to move said first pusher to engage and move a tie plate in a first direction such that the tie plate in turn moves an anchor along the rail in the first direction.
1 more element
Dependencies are inferred from the claim text.