Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1980-04-28
1983-02-15
Crane, Daniel C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291568B, 29558, 72256, 72299, B23P 1502, B21C 2316
Patent
active
043732410
ABSTRACT:
The method of making a propeller and fan blading comprised of an extruded airfoil having a rib retained at the root for mounting and with a portion thereof removed by flattening the back of the blade truncating the back camber thereof in a plane tapered toward the blade tip with respect to the front camber thereof and having a flap of full configuration toward the root of the blade and continuing tangent from the front camber and extending angularly back from the back camber and reduced toward the blade tip by profiling the trailing edge made thin toward said tip by a flattening truncating the back trailing portion of the blade toward said tip.
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Crane Daniel C.
Maxwell William H.
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