| 摘要 |
<p>The actuating connecting rod is attached to the free end of piston rod of piston; a free rotating roller is inserted between the common articulation point and between connecting rod and piston rod; the roller is moved between oscillating arm and fixed part; the arm is articulated at one end on a fixed point and is actuated by a screw and handwheel the arm with two sections is articulated on the articulation point between connecting rod and piston rod.</p> |
