Metal working – Bias cutting of tubular stock
Patent
1993-03-09
1994-09-13
Vo, Peter Dungba
Metal working
Bias cutting of tubular stock
294011, 29DIG29, 42 50, B21K 2104, B23P 1522, F41A 962, B29C 4536
Patent
active
053456602
ABSTRACT:
A process for making these magazines includes the steps of providing mold halves forming a cavity with an insert-receiving core, and a number of inserts each having a projection-producing depression a distance from the top of the magazine equal to that occupied by the given number of cartridges. After selecting an insert it is secured to the core; the mold halves are mated; and a melted hot plastic composition is injected into the cavity to form a hot casting of the shell of the magazine. The mold is opened, the hot casting removed and cooled to form a shell which is then assembled.
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"Magazines For Colt Automatic Pistols" The American Rifleman, Aug. 1977, page 70.
Dungba Vo Peter
Murphy David R.
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