Excavating – Railway graders
Patent
1977-05-11
1978-07-25
Eickholt, E. H.
Excavating
Railway graders
104 9, 37195, E02F 522, E01B 2906
Patent
active
041020669
ABSTRACT:
Railroad bed scarifying apparatus employing a digging or scooping action along the direction of the rails is provided. A movable frame mounted on a vehicle which travels along the rails has three digging plates pivotally mounted thereon. A first digging plate extends between the rails, while the other two digging plates each extend outwardly from an associated one of the rails to the end of the ties. Each of the digging plates has a digging ridge located on the end thereof, the digging ridge being located at an obtuse angle with respect to the front surface of the digging plate. By appropriate control of suitable driving arrangements, the digging ridges and digging plates form a trench of the appropriate dimensions to receive a tie and place the removed ballast on an adjacent tie for return after insertion of the new tie.
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patent: 4047486 (1977-09-01), Pabsdorff
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