Geometrical instruments
Patent
1981-12-03
1983-11-01
Desmond, Eugene F.
Geometrical instruments
H01R 3900
Patent
active
044127111
ABSTRACT:
A hinge, preferably a two buckle hinge, for passing electric current between a door and frame through one or more concealed, tamperproof electrical wires includes a solid hinge pin that is disposed in the bores of adjacent hinge knuckles for providing relative pivoting of the hinge leaves. In one embodiment, the hinge pin extends partially into the bore of the knuckles to define a cavity in each of the hinge knuckles. The hinge pin includes a slot to receive one or more electrical wires extending between the cavities in the respective hinge knuckles. A conduit is formed in each hinge leaf and communicates through a hole in the respective hinge knuckle to the cavity, such that the wires extend from the cavity along the conduit and out through the back of each hinge leaf.
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Desmond Eugene F.
The Stanley Works
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