E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
262/56
E21C 35/20 (2006.01) E21C 29/10 (2006.01)
Patent
CA 1146182
ABSTRACT OF THE DISCLOSURE Hauling and cutting equipment includes a conveyor trough having a longitudinal side wall on each side with a side with a support rail structure on at least one side having a chain guide groove therealong through which a endless link chain extends. A cutting machine overlies the trough and is guided on the rail structure and includes a drive on one side with a sprocket or chain wheel which has teeth which engage in horizontally disposed links of the link chain. The space between the teeth accommodates the vertically disposed links of the chain. The link chain comprises long horizontal links and short vertical links which are shorter than the horizontal links. The pitch of the vertical links is at least double the link stock diameter of the horizontal links except for a small clearance for movement play. The engagement division of the chain wheel is matched to the length of the vertical links. This arrangement allows for horizontal and vertical flexure of the chain to permit the chain to follow curves and inclines of the conveyor without the links pushing into and pulling away from one another, which gives rise to problems of tooth stress in the sprocket or chain- wheel and possible mis-engagement between the teeth and the chain.
360292
Borden Ladner Gervais Llp
Halbach & Braun
LandOfFree
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