| 摘要 |
A triggering mechanism for a gas valving apparatus including a lever for displacing the valve poppet into its off position, an arming cam for applying force to the lever and a triggering cam for locking the lever in the poppet off position. The mechanism is armed by rotating the arming cam into poppet displacing engagement with the lever and then rotating the pull-cable actuated triggering cam into engagement with the lever to lock the poppet in the off position. Tension applied to the pull-cable releases the lever and allows the poppet to open.
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