| 摘要 |
A propeller shaft immobilizer having a substantially hollow, open ended rectangular lower base portion fixedly mounted to the floor portion of a boat. An upper support base portion is slidably mounted on the lower base portion to allow vertical movement of the upper base portion. Upper and lower engaging surfaces are movably mounted on the upper base portion and movable by hydraulic power to frictionally engage the propeller shaft to be immobilized.
|
