| 摘要 |
A lock for boat shutters and the like comprising a shaft, extending through a shutter, with a means thereon providing a square seat at one end, for operation by winch handle, and a hex head at the other end; a handle having a cam engageable with a shutter frame and an opening which receives the shaft therethrough; and a spring-biased knob inserted into the handle and having a hex cavity to receive the hex head of the shaft; the handle having recesses which receive, in one position of the knob, mating projections on the knob to operatively connect the shaft with the cam, and wherein, in a second position of the knob, the recesses and projections are disengaged so that the shaft is disconnected from the cam.
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