B - Operations – Transporting – 61 – D
Patent
B - Operations, Transporting
61
D
108/24
B61D 19/00 (2006.01) E05B 65/14 (2006.01)
Patent
CA 1173699
ADJUSTABLE BOXCAR DOOR WITH DOUBLE ROLLER BOGEY TRAVERSE MECHANISM AND METHODS FOR FABRICATING AND INSTALLING SAME Abstract An adjustable rolling type boxcar door has a main panel and a telescoping adjustable panel at its bottom for adjusting the overall height of the door to fit a variety of door openings. The adjustable panel is slidably retained between side frames in the main panel by stop blocks mounted along the inside edges of the side frames. The width of the door may be also ad- justed by positioning a spark strip either closer or further away from the inside edge of the door opposite the closure mechanism. A pair of double roller, pivot- ally mounted bogeys are mounted in the adjustable panel and support the door from a door track mounted to the side of a boxcar. The double roller bogeys provide an improved traverse mechanism for supporting the consider- able weight of a boxcar door and carrying it across what may be an uneven and rough track. There is also dis- closed a method for adjusting the height of the door and installing it to a boxcar including the steps of measur- ing the height of the door openings, adjusting the height of the door by fixing the position of the adjustable panel, lifting the door, inserting the top of the door into the top door retainer, and positioning the lower end of the door on the door track and securing it into place by welding J-straps to the lower end of the door.
366688
Payne Mark C.
Wilkins James H.
Missouri Pacific Railroad Company
Osler Hoskin & Harcourt Llp
LandOfFree
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