| 摘要 |
1,157,182. Hydraulic actuators. HOUDAILLE INDUSTRIES Inc. Sept. 1, 1966 [Sept.1, 1965], No. 39162/66. Addition to 1, 065,190. Heading F1P. [Also in Division E2] Hatch cover panels 13, 14 are opened and closed by at least one pair of coupled pistonlever actuators 19. Each actuator comprises a double-acting hydraulically-operated piston 23 connected to a torque arm 29 splined to a shaft 30. The shafts 30 of each pair of actuators are coupled either by a coupling or by being integral with each other, see Figs. 2 and 3 (not shown). A counterbalancing torsion bar may be mounted between adjacent pairs of actuators, see Fig. 4 (not shown). |
