Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Securing means pivotable about axis transverse to fastener...
Patent
1998-06-17
1999-05-18
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Securing means pivotable about axis transverse to fastener...
411341, 411508, F16B19/00;21/00
Patent
active
059044624
ABSTRACT:
A locking bolt for helping make connections between beams and columns of a building under construction includes an elongated body having a rear threaded section. This threaded section connects with a smooth toggle section having a rounded front end. An inverted L-shaped slot in the toggle section includes a deep front recess that connects with a shallow rear recess. A toggle bar is carried in the slot by a pivot pin that extends loosely through an opening in a base of the toggle bar. Connecting with the toggle base is a rearward extending locking arm. When the toggle bar locking arm seats in the slot, the front end of locking bolt may readily pass through bolt holes in a beam and a web of an adjoining column. Once the toggle bar is clear of the column web, the toggle bar locking arm is free swing from the slot and into a locking mode where held by interference fits between edge segments of the toggle bar base and walls of the slot deep recess. In this mode the beam and column are conditionally joined by tightening a nut on the bolt threaded section so that an end edge of the toggle bar locking arm engages the column web.
REFERENCES:
patent: 79801 (1868-07-01), Adams
patent: 577285 (1897-02-01), Caugherty
patent: 1073998 (1913-09-01), Lundin
patent: 1659992 (1928-02-01), Crone
patent: 1805138 (1931-05-01), Fredendall
Schmitt John L.
Wilson Neill
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