E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
108/12
E05F 11/10 (2006.01) E05D 15/56 (2006.01) E05F 11/54 (2006.01)
Patent
CA 1126094
ABSTRACT A mechanism for moving a sliding door of a railway car and is capable of moving the sliding door between a first position in which the sliding door is supported on the body of the railway car and closes an opening in the railway car body and a second position in which the sliding door is supported by the mechanism and is moveable along the railway car body so that cargo may be loaded and unloaded into and out of the opening in the railway car. The mechanism includes a pair of cranks with a roller mounted on each crank for rotation about first axes. The cranks are adapted to be mounted on the sliding door for rotation about second axes spaced between the first axes for allowing limited arcuate movement of the rollers through a pair of openings in the bottom portion of the sliding door in arcs which provide clearance between the rollers and the openings when the rollers move partially into and out of the openings. A manually operated actuating member is adapted to be mounted on the sliding door for rotation about a third axis, the actuating member having a pair of lugs. A pair of single elongated connecting links are provided for connecting the crank means and lugs, the links being connectable to the crank means for rotation about fourth axes spaced between the second axes and connectable to the lugs for rotation about fifth axes spaced from the third axes of rotation of the actuating member. When the mechanism is mounted on a sliding door, the third, fourth and fifth named axes are located in the area between the bottom of the rollers and the second axes when the sliding door is in both the first position and the second position so as to provide a compact and efficient mechanism having the capability of positively selectively driving the door between the first and second positions. sb/
291454
Ellis James A.
Wright Glenn L.
Macrae & Co.
Youngstown Steel Door Company (the)
LandOfFree
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