held in that position by the detent until the crank cal or by electrical means. In the first case a small counter, arm strikes the face of the latch plate, when the latch is similar to an engine counter, is placed in the head or handle released and slips behind the face of the plate without fric-… … WALLACE’S DOOR LATCH. the sliding gates, operated by the rods or bars, d d. Each shutter is provided with a rack which is attached to The water to be filtered passes from the race, E, into the Fig. 1 in the engraving shows the lock in side elevation. the middle rail, and upon each side of the…
Internet Archive · Public domain (published before 1931). Free to use for anything.
