Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1994-04-14
1995-04-25
Watson, Robert C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
B23P 1904
Patent
active
054087341
ABSTRACT:
An arrowhead extractor provides for the extraction of bladed or non-bladed arrowheads from relatively dense objects in which the arrowhead is imbedded, by securing an arrowhead extractor shaft to the arrowhead shank and threadibly withdrawing the extractor shaft and attached arrowhead from the object in which the arrowhead was imbedded. A barrel serves as a housing for the extractor shaft, and a threaded collar mates with the extractor shaft to draw the extractor shaft and attached arrowhead into the barrel portion of the device. The extractor shaft is keyed to the barrel portion and the barrel portion is seated firmly against the object in which the arrowhead is imbedded, so no rotational force is applied to the arrowhead which would otherwise cause any blades thereon to break. The device applies a steady, concentric tensile force along the shank of the arrowhead, to minimize the potential for damaging the arrowhead. The device provides further utility in holding an arrowhead for the attachment, removal, and/or sharpening of blades and attachment or removal of arrow shafts thereto or therefrom, and in straightening bent arrowhead shanks.
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patent: 4957095 (1990-09-01), Cameron
Clem Leslie C.
Mills Buster
Litman Richard C.
Watson Robert C.
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