B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
198/1
B66B 9/08 (2006.01)
Patent
CA 1154395
ABSTRACT This invention relates to the transport of wheel chaired persons via escalators to ascend and descend between the floor level of building structures and the like. In partic- ular, an escalator for transporting a wheel chair having spaced side frames with main wheel supports, downwardly ex- tensible wheel supports at the front of each side frame and a control mechanism with a track follower to depress the front wheel supports is taught. The escalator has side walls spaced to closely pass the side frame of the wheel chair, an endless belt of flights extending between vertically spaced floor levels to move within the confines of the spaced side walls, lower and upper platforms at said spaced floor levels and a mechanism to maintain a horizontal disposition of the flights as they are vertically offset to form steps as they are propelled by a motor, and a variably displaced track ex- tending between the lower and upper platforms and engaged by the track follower on the wheel chair control mechanism oper- able in response to the variable displacement of the track to maintain the horizontal disposition of the wheel chair with the main and front wheel supports carried upon adjacent flights. The escalator, when used with the specified wheel chair, assures the wheel chair will remain positioned upon the esca- lator during transport from one flight to the next.
410724
Ellzey Floyd P.
Johnson Douglas S. Q.c.
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