| 摘要 |
PCT No. PCT/FR86/00143 Sec. 371 Date Mar. 5, 1987 Sec. 102(e) Date Mar. 5, 1987 PCT Filed Apr. 28, 1986 PCT Pub. No. WO86/06812 PCT Pub. Date Nov. 20, 1986.A linkage apparatus comprised of two interconnected levers extending between a valve actuator for a rotatable valve and a rotatable operating shaft of the valve. The relative position of the interconnection between the levers is presettably adjustable so as to enable varied operation in the rotational displacement of the operating shaft. Effecting the adjustment is independent of the actuator operation. |
