Rail vehicle for track investigation

Details Rail vehicle for track investigation Rail vehicle for track investigation

1981-09-11

1983-07-19

Woodiel, Donald O.

Measuring and testing

Hardness

By penetrator or indentor

73146, G01N 342

Patent

active

043936911

ABSTRACT:
A rail vehicle for track investigation is provided which comprises an excavator attached to said vehicle for removing material supporting the rails and disposed below the rail level, a support provision attached to the rail vehicle and a measurement unit attached to the support provision. The measurement unit includes a frame supported by the support provision, a pressure plate held by the frame and capable of being lowered down to below the formation level and of being lifted up and disposed in its upper rest position such that it is at a level above the track region for preventing interference with line travel and a pressure piston adapted to an opening in said pressure plate and capable of substantially vertical motion relative to the pressure plate for pressing into the subgrade to be tested.

REFERENCES:
patent: 2130751 (1938-09-01), Van Der Meer
patent: 2774240 (1956-12-01), Fehlmann
patent: 4040292 (1977-08-01), Theurer et al.
patent: 4302967 (1981-12-01), Dufey
patent: 4315429 (1982-02-01), Morozov

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