Overhead tilting door assembly

Details Overhead tilting door assembly Overhead tilting door assembly

1981-04-06

1984-04-24

Downey, Kenneth

Movable or removable closures

Up-and-over type; e.g., moves from vertical to withdrawn...

With operator

49197, E05F 1100

Patent

active

044439725

ABSTRACT:
An overhead tilting door assembly is provided, particularly for use in large buildings. The door assembly includes a door member having a quadrant member attached to each of its upper corners. Generally horizontal support members are provided on either side of the door member extending rearwardly therefrom. Each quadrant member is rolled along a support member to tilt the door between open and closed positions. A drive means is pivotally attached to a quadrant member for tilting the door member and for locking the door member against movement, unless being tilted by the drive means. The assembly also includes anti-skid means between the quadrant members and the support members to force the quadrant members to roll and not skid along the support members.

REFERENCES:
patent: 1792119 (1931-02-01), Peelle

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