B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
143/21
B27B 5/10 (2006.01) B28D 1/04 (2006.01) E01C 23/09 (2006.01)
Patent
CA 1253420
ABSTRACT OF THE DISCLOSURE: There is disclosed a machine including a powered truck-like vehicle having a support base and an apparatus mounted on the base for cutting a drive-in passage across a curbstone, a sidewalk or the like. The apparatus com- prises two spaced parallel booms mounted at one end on the base and rail-structure-holding heads connected to the booms and displaceable along them. A rail structure including an elongated upper suspension member, having a non-circular cross section, is mounted on the heads by extension of the suspension member through rotary pillow blocks of the heads of which the cylinders have like non-circular bores. A linkage powered mechanism, intercon- necting the heads and the suspension member, allows oscillation of the latter about its longitudinal axis and consequently oscillation of the rail structure of which it is a part. A power jack allows shifting of the rail structure laterally with respect to the booms. A saw carrier, holding the saw, is mounted on the rail structure so that it can move along it and also be oscillated with it. Additionally, the saw is movable on the carrier in a direction transverse to the rail structure and, also, the carrier and saw are movable bodily in the same direction.
543380
Bertrand Rene
Bertrand Rene
Robic Robic & Associes/associates
LandOfFree
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