tters stamped. The counting may be done by mechani- latch is 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… … 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…
Patents · Patented · Improved · Water · Apparatus · Scientific American · Iron · Watch holder · Rock crystal · Small quantity · Water Supply · Sewing machine · Water power · Wood working · Barb fence · Great Britain
Internet Archive · Public domain (published before 1931). Free to use for anything.
