E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 15/00 (2006.01) E05F 15/14 (2006.01)
Patent
CA 2316069
Door support and drive mechanism for a door mounted either over or in a door opening in a transit vehicle or other structure. It includes a tube which has a longitudinal slot. The mechanism also has mounting means attached to the tube for mounting it to the structure over the door opening, so that the tube is substantially horizontal and the slot is along a lower portion of the tube. It includes at least one door hanger which has an upper portion movably disposed within the tube and a depending portion passing through the slot, the depending portion being for attachment of the door. It has a drive nut attached to the door hanger. A drive screw is positioned in the tube, engaging a threaded inner portion of the drive nut. The drive screw is connectable to a rotary power means to be rotated thereby. Rotation of the drive screw causes longitudinal movement of the drive nut and the hanger to which the drive nut is attached, so that the door is moved longitudinally.
Macrae & Co.
Westinghouse Air Brake Company
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