The rotation of gear 1 is transmitted through intermediate gear 2 to gear 3 which is keyed with pin wheel 4 on a common shaft. As pin wheel 4 rotates, its rolls b strike the sheets of paper and move them to the left, up to stop 5. To ensure that a single sheet is moved, the sheets are stacked with each sheet shifted with respect to the one below it. The whole stack, except the top sheet,is held by brake shoe a. The force exerted by the moving sheet turns link 5 about axis A so that its upper end engages a tooth of ratchet wheel 6. Ratchet wheel 6 presses link 5 so that link 7 turns about fixed axis B. This releases link 8 which is pulled upward by spring 9. Then lever 10 turns together with yoke 11 and raises pin wheel 4. Keyed to a common shaft with ratchet wheel 6 is an eccentric (not shown) which actuates roller c of link 8, pushing it downward and thereby lowering pin wheel 4. Link 7 is held to the base by spring 12.
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