E - Fixed Constructions – 05 – D
Patent
E - Fixed Constructions
05
D
16/22
E05D 3/00 (2006.01) E05D 5/12 (2006.01) E05D 11/00 (2006.01) H01R 35/02 (2006.01) H01R 39/00 (2006.01) E05D 7/10 (2006.01)
Patent
CA 1101619
SECURITY HINGE Abstract of Disclosure A security hinge is disclosed which includes a pair of leaves, having respectively, at least a pair of spaced end knuckles and at least one immediate knuckle disposed there- between. Each knuckle includes a central axial bore, the bores being aligned co-axially. A pair of pins are provided, each pin having a head portion disposed in an end knuckle bore for rotation in unison therewith and a body portion thereof disposed within an intermediate knuckle bore to main- tain the leaves in assembly and permit relative rotation there- between the pin and intermediate knuckle. Stop means, are pro- vided interiorly of the bores, against which the heads of the respective pins abut, thus preventing the pins from being driven completely through the end knuckle bores in the axially inward direction. Since the pins are recessed within the bores, and one prevents the other from being forced out of the bores in the axially outward direction, unauthorized disassembly of the hinge is precluded. The hinge may be provided with con- tinuous passage means into which one or more electrical con- ductors are engaged, so that said conductor is substantially concealed, the hinge giving the outward appearance of a con- ventional, load bearing hinge.
302446
Lawrence Brothers Inc.
Smart & Biggar
LandOfFree
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