E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 11/02 (2006.01) E05F 1/06 (2006.01) E06B 11/08 (2006.01)
Patent
CA 2148740
A one-way self closing gate such as may be used in retail stores, airports or libraries is provided with an inclined helical ramp mechanism by which opening of the gate also causes lifting of the gate arm relative to the gate base. When released the gate will tend to close itself under the force of gravity. To augment this gravity force a spring is provided which is compressed as the arm rises relative to the base. So that the gate does not close too quickly a screw presses a nylon slug against the turning shaft of the gate. When the gate is closed a force applied to open the gate in the contrary direction to that intended is resisted by abutment of a generously welded internal stop against a generously welded internal upright. In an alternate form this resistance function in the closed position is performed by an adjacentpost positioned to intercept the motion of the moving barrier. In all cases the internal mechanism of the gate is enclosed in a housing to prevent injury to children's fingers.
Brascon Architectural Products Inc.
Gierczak Eugene J. A.
LandOfFree
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