E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
26/101, 16/29
E05F 1/08 (2006.01) E05D 5/12 (2006.01) E05F 1/12 (2006.01)
Patent
CA 1072276
Abstract of the Disclosure A plug is offered to make relatively easy ant simple the assembly and pre-torquing of a spring-loaded hinge for doors and the like. These hinges comprise a pair of hinge leaves, each leaf defining at least one hollow hinge knuckle aligned with a hinge knuckle defined on the opposite leaf. Through the knuckles, a bi-ended torsion spring mechanism is inserted. A first plug is affixed within one hinge knuckle and engages one end of the tor- sion spring mechanism. At the opposite knuckle and second spring end, the novel second plug is affixed. This second plug includes a spring-engaging finger and a capstan body adapted to fit snugly within the knuckle. Atop the capstan body is a removable head which can be grasped by a wrench or like torsioning device. Af- ter this second plug is inserted in the hinge, the spring end is grasped and torqued by rotating the plug. When the plug end spring are torqued to a predetermined amount, a cross pin is in- serted through the adjacent hinge knuckle and capstan body so as to affix the plug in the knuckle. Thereafter increased torque is applied to the plug head, which shears a plane of frangible ma- terial interconnecting the plug head and plug capstan, and per- mits plug head removal. After the head is removed, a covering cap can be inserted into the hinged knuckle at the spot from which the plug head was removed to provide a finished hinge ap- pearance and to inhibit alteration of the correctly set hinge torsional-force-applying capability.
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