E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
214/27
E02F 9/18 (2006.01) E02F 3/30 (2006.01) E02F 3/32 (2006.01) E02F 3/42 (2006.01)
Patent
CA 1257230
-1- ABSTRACT A machine comprises a body having a ground engaging propulsion means and a base frame mounted on the ground engaging means, the base frame being movable relative to the ground engaging propulsion means about a first generally vertical axis, a boom extending outwardly of the body and mounted on the base frame for movement about a second axis transverse relative to the first axis, the boom having mounted at an outer end thereof for movement about a third axis also transverse to the first vertical axis, a dipper arm, an implement mounted at an outer end of the dipper arm for movement about a fourth axis, also generally transverse relative to the vertical axis, a cable secured to the dipper arm and connected to a winch means to effect movement of the dipper arm relative to the boom to effect movement of the implement towards the body, a hydraulic ram mounted between the dipper arm and the boom to effect movement of the dipper arm relative to the boom and hence to effect movement of the implement at least away from the body, and a counterweight, mounted on the base frame, means being provided to move the counterweight, towards and away from the first vertical axis in response to movement of the centre of gravity of the machine.
496556
Brocklebank Norman
Cooper Alan
Bamford(j.c.) Excavators Limited
Kirby Eades Gale Baker
LandOfFree
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