Track working machine with vibratory and reciprocable track work

Details Track working machine with vibratory and reciprocable track work Track working machine with vibratory and reciprocable track work

1975-03-24

1976-09-21

Paperner, L. J.

Railways

Track layers

Tamper

E01B 2716

Patent

active

039812472

ABSTRACT:
Hydraulically reciprocable and vibratory track working tools are operated with a control in the hydraulic circuit which generates a pulsating stream of hydraulic fluid and delivers this stream to a separate hydraulic motor to which hydraulic reciprocating motors are connected or directly to the hydraulic reciprocating motors for the tools so as to vibrate the same. The control includes an impulse generator for imparting impulses to the hydraulic fluid and a check valve assembly, control conduits for delivering the pulsating hydraulic fluid stream to inlets of the valve assembly, further conduits for delivering the pulsating hydraulic fluid stream from the outlets of the valve assembly to respective chambers defined by the hydraulic motors, and respective ones of the valves alternatingly blocking and permitting passage of the pulsating hydraulic fluid stream from the inlets to the outlets of the valve assembly.

REFERENCES:
patent: 3669025 (1972-06-01), Plasser et al.
patent: 3810417 (1974-05-01), Sieke
patent: 3885883 (1975-05-01), Sieke et al.

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