| 摘要 |
A fluid pressure device comprising a carriage and a track, the carriage adapted to ride on and be guided by the track, a fluid pressure-containing membrane and a sealing membrane, each fixedly attached to the track, the fluid pressure membrane enclosing a cavity in the track, pressurizing and exhausting means connected to the track at the cavity to alternately pressurize and exhaust the fluid medium, the carriage having at least two rollers journaled therein, the roller adapted to cooperate with the pressure-containing membrane so as to move along the track in response to the fluid pressure, the sealing membrane effecting a pressure seal between the pressure-containing membrane and the track.
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