B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
305/52, 198/86
B62D 55/18 (2006.01) B62D 55/24 (2006.01)
Patent
CA 1087656
ABSTRACT OF THE DISCLOSURE: An elongated endless structure which is adapted to form an endless track of a vehicle or a belt conveyor includes an elongated endless flexible band for extending around and being guided by at least a pair of rotary members which have in at least one position of operation a pair of parallel axes around which transverse end regions of the endless band are adapted to curve, with this endless band having when these axes are parallel a pair of opposed endless side edges which are respectively situated in edge planes which are parallel to each other and normal to the above axes when they are parallel to each other. This endless band includes at least a pair of longitu- dinally extending elongated endless portions which are sub- stantially non stretchable at least in the longitudinal direc- tion and which are spaced from each other in the transverse direction with respect to the endless band while being symme- trically situated with respect to the above edge planes. Also, the endless band includes an elongated endless resilient sheet structure for stretching and contracting in response to en- countering and being relieved from forces which tend to stretch this resilient sheet structure, and the resilient sheet structure is also situated symmetrically with respect to the above edge planes when the above axes are parallel to each other.
293476
Pohjola Jorma T. T.
Robic Robic & Associes/associates
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