E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 3/32 (2006.01) E02F 3/38 (2006.01)
Patent
CA 2153954
A mechanical excavator provided on a tractor or other vehicle and which comprises a main boom, which at its lower end is pivotally connected to a king post assembly for movement up and down in a vertical plane, a dipper arm pivotally connected to the outer end of the boom for movement in a vertical plane and the dipper arm carrying or being adapted to carry a bucket or like tool, the king post assembly providing for pivotal slewing movement of the main boom about a vertical axis so that the main boom can be rotated from one side to the other of the centre line of the vehicle, the king post assembly being mounted upon a guide means extending transversely of the centre line of the vehicle, theking post assembly being moveable along the guide means, and fixing means releasably to fix the king post assembly relative to the guide means wherein a fluid operated ram means is connected between the king post assembly and an anchor means which is adapted to be fixed relative to the guide means whereby extension or contraction of the fluid operated ram means causes movement of the king post assembly along the guide means.
J. C. Bamford Excavators Limited
Ridout & Maybee Llp
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