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US 4,059,212 AGranted
Stock feeder for punched stock
AssigneePlessey Incorporated
InventorHarry James Ledgerwood
Life of this patent
Estimating the term…
Abstract
A stock feeder particularly adopted for feeding narrow, prepunched strip, and featuring a positive locator/stock holder assembly. The stock feeder positively pilots and feeds the stock with more force, and is more compact and less expensive to build, than comparable feeders. Operation is entirely pneumatic. Holding pilots and feed pilots assure positive and accurate feeding.
Claims8
A stock feeder for moving indexed or pre-punched stock comprising:
- track means for supporting said stock as it moves through said feeder;
- a mounting block at the forward end of said track;
- a rear block and stabilizer bar at the rear end of said track;
- guide rails supported between said mounting and rear blocks;
- a feed block assembly movably supported on said guide rails;
- and including feed pilot means for engaging index holes from one side of said stock;
- holding pilot means in said mounting block adapted to engage index holes from the other side of said stock;
- fluid-actuated piston and cylinder means spaced from and parallel to said guide rails, and including pulley and cable means operably secured to said feed block assembly and said piston means;
- and
- actuating means to (a) engage said feed pilot means and disengage said holding pilot means at the beginning of a stroke. (b) actuate said piston means to move said feed block assembly along said rails, advancing said stock, (c) disengage said feed pilot means and engage said hold pilot means at the end of a stroke, and (d) actuate said piston means to return said feed block assembly to said starting position.
7 more elements
Dependencies are inferred from the claim text.