f this frame by a gear wheel K of a clock mechanism contained in upper face of this drum is formed with an internal the casing B. The clock mechanism slowly turns the is connected by a spring with the main frame gear which, through a train of step-up gearing, serves drum A on its axis and, due to… … A CONVENIENT FIRE ESCAPE, can. The piston is pro- the crank, the swell vided with a hollow pis- of the cam is brought Sy st oo SSN ISS ton rod, which projects to bear on the clutch, locking it against the through ‘the cover of the = disks and pressing them together. In use, the free end can and…
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