Suspension syyyyssyystem for tree felling appts. - has spring loaded brake to damp oscillations in double articulated joint to mounting beam

Abstract

Abstract The beam supports the tree felling apparatus. The sleeve forms a bearing for the shaft. The upper end of the shaft is fitted with a lever actuated by a jack so that the shaft can rotate in either direction through an angle of 120 deg. The shaft is attached to the apparatus by a double ended fork with two pins having their axis at right angles to each other. Brake pads are pressed against the outer surfaces of the fork ends by the belleville washers and nut. These brakes damp out any oscillation of the apparatus when being placed in its working position.

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