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US 4,848,426 AGranted
Adzer cribber
AssigneeKershaw Manufacturing Company, Inc.
InventorJohn B. Whitaker, Jr.
Life of this patent
Estimating the term…
Abstract
Track maintenance apparatus for use in railroad track maintenance utilizes a forward cribber unit to remove ballast from between the crossties and a rear adzer unit to smoothen any irregularities in the crosstie surface during a track re-laying operation. A single worker can perform both the cribbing and adzing tasks without dismounting from the apparatus.
Claims9
Apparatus for railroad track maintenance wherein said railroad track includes a rock bed of ballast, a plurality of crossties and first and second parallel rails, said apparatus operable when said first rail is removed, comprising:
- (a) wheel means for engaging said second rail;
- (b) frame means supported on said wheel means;
- (c) driven support means positioned on said crossties distal said second rail for supporting and propelling said frame along said track;
- (d) cribber means for dislodging ballast from between said crossties supported by said frame means forward of said driver support means;
- (e) adzer means for leveling said crossties distal said second rail supported by said frame means;
- and
- (f) means for driving said adzer means, cribber means, and driven support means.
4 more elements
Dependencies are inferred from the claim text.