E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
262/46.5
E21C 27/24 (2006.01) E21D 9/08 (2006.01) E21D 9/10 (2006.01) E21D 9/06 (2006.01)
Patent
CA 1139324
ARTICULATED BOOM-DIPPER-BUCKET ASSEMBLY FOR A TUNNEL BORING MACHINE ABSTRACT OF THE DISCLOSURE The articulated boom-dipper-bucket assembly is utilized in a tunnel boring machine of the type which includes a hol- low cylindrical body with a front circular cutting edge and a central axis on which an excavator including the assembly is positioned. The assembly includes a base having a front face facing axially of the machine and being mounted on a bulkhead having siderails which are received in channels fixed to the body and extending parallel to the central axis. A pis- ton and cylinder mechanism is associated with the bulkhead for reciprocating same in a direction parallel to the central axis. The assembly further includes a boom having one end pivotally mounted to the front face of the base at one side thereof a a second end positioned outwardly from the base, an elongate dipper member pivotally mounted at a first inner end to the second outer end of the boom, and a bucket-scoop having an inner edge and an outer cutting edge and being pivotally mounted to a second outer end of the dipper member. The assembly also includes a mechanism for rotating the base on the bulkhead, a first reciporcal power mech.nism pivotally connected at one end to the front face of the base at the other side there- of and pivotally connected at the other end to the boom at a point spaced from the first end thereof, a second reciprocal power mechanism pivotally connected at one end to the first end of the boom and at the other end to the first end of the dipper member and a third reciprocal power mechanism pivotally connected at one end to the first end of the dipper member and at the other end to the inner edge of the bucket-scoop. - 1 -
345924
Borden Ladner Gervais Llp
Zokor International Ltd.
LandOfFree
Articulated boom-dipper-bucket assembly for a tunnel boring... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Articulated boom-dipper-bucket assembly for a tunnel boring..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Articulated boom-dipper-bucket assembly for a tunnel boring... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-762305