Door closure device

Details Door closure device Door closure device

E - Fixed Constructions

05

F

268/2, 16/13.51

E05F 15/20 (2006.01) E05F 3/22 (2006.01)

Patent

CA 1063759

ABSTRACT OF THE DISCLOSURE A safety device for automatically closing a door in response to a predetermined conditions, such as fire, is provided by a selectively disengageable brake operatively associated with a pivotable door closure arm. The brake includes a flexible cable wrapped around a brake drum, and means to selectively tighten the cable around the drum. A crank-pin rotates conjointly with the drum and engages the door closure arm to expeditiously close the door in the event of fire.

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