Expansible chamber devices – Displacement control of plural cylinders arranged in... – Predetermined discrete incremental adjustment positions
Patent
1980-06-11
1983-04-12
Schwadron, Martin P.
Expansible chamber devices
Displacement control of plural cylinders arranged in...
Predetermined discrete incremental adjustment positions
403 3, F15B 1524
Patent
active
043794246
ABSTRACT:
A device for limiting the stroke of a hydraulic ram of mining apparatus employs a segmental stop which partly surrounds the piston rod of the ram. The stop locates between the cylinder of the ram and a head piece at the end of the piston rod. The cylinder of the ram makes contact with the stop during retraction of the ram thereby limiting the stroke of the ram. The stop is connected to the head piece via replaceable or adjustable pins. These pins permit the distance between the head piece and the stop element to be altered at will. The connection pins also enable the stop to be arranged to partly surround the piston rod periphery over different regions thereof.
REFERENCES:
patent: 2442306 (1948-05-01), McCormick
patent: 3857246 (1974-12-01), Roenspies et al.
patent: 4177681 (1979-12-01), Wess
Eggenstein Friedrich
Plester Karl-Heinz
Rosenberg Harry
Terhorst Gunter
Gewerkschaft Eisenhutte Westfalia
Klein Richard L.
Schwadron Martin P.
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