Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Draw bar or draft key fastener
Patent
1985-12-06
1987-08-18
Ridgill, Jr., James L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Draw bar or draft key fastener
411499, 411451, 29275, F16B 1902
Patent
active
046873937
ABSTRACT:
A centering pin having a head, round shaft and tapered, ovaloid point is disclosed. Opposing sides of said tapered point are symmetrical such that the radius of each is equal to the radius of the round shaft of the pin. The tapered pin point can readily be inserted into partially aligned holes in metal plates, leather straps, etc. that are to be connected and secured by said pin. A cotter pin or the like is inserted into an aperture on the shaft adjacent the tapered point to securely position the pin once it is passed through the holes of the items being connected.
REFERENCES:
patent: 1109328 (1914-09-01), Evans
patent: 1645817 (1927-10-01), Nystrom
patent: 1933317 (1933-10-01), Curtis
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