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LEVER-RATCHET SHELL-FEEDING MECHANISM

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Bent lever 1 turns about fixed axis A and is oscillated by link 2 which is secured to the press ram. By means of pawl 3, lever 1 turns ratchet wheel 4 together with annular ring 5 intermittently counterclockwise about axis A. For each cycle of the press ram, ring 5 is turned one division. Shells 6 are fed from a hopper through tube 7 and drop, one by one, into openings a of ring 5. Shells may leave the hopper and drop through tube 7 with their closed ends either up or down, but they must all be delivered to press dial 10 with their closed ends up. Shells 6 entering ring 5 in the position shown at d (closed end up) are pushed by plunger 8, overcoming the resistance of a spring (not shown), down through hole b in stationary disk 9 and drop in this position into the holes of press dial 10. Shells entering ring 5 in the position shown at f (closed ends down) are carried past the position at the top of ring 5 (past hole b) because plunger 8 will simply enter the shell without making contact. These shells cannot drop by gravity into hole b because they are held up by the spring (not shown). Such shells will be carried around and drop out in the proper position into a hole of press dial 10.
$1847$LR,FD$

Linked items
Documents: Lever mechanisms  [Streambook]
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