Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
Apparatus for felling trees, adapted to be suspended by the arm of a crane by means of a bearing shaft, said apparatus comprising a stand journalled on said bearing shaft to pivot freely about a horizontal axis, means for gripping said tree comprising a pair of cooperative claws pivotally journalled on said stand, means for severing said tree arranged on said stand below said gripping means, means for supporting said trees arranged on said stand above said gripping means, said supporter means extending upwardly from said stand and having means for guiding said gripping means and severing means into an operative position with respect to said tree, the center of gravity of said apparatus being offset from the horizontal axis so that said apparatus is normally inclined with respect to ground whereby the guide means is located in front of the gripping means when said apparatus is in an inoperative position with respect to the tree.
Claim 2
Dependent Claim
156 words
Apparatus for felling trees, adapted to be suspended by the arm of a crane by means of a bearing shaft, said apparatus comprising a stand journalled on said bearing shaft to pivot freely about a horizontal axis, means for gripping said tree comprising a pair of cooperative claws pivotally journalled on said stand, means for severing said tree arranged on said stand below said gripping means, means for supporting said trees arranged on said stand above said gripping means, said supporter means extending upwardly from said stand and having means for guiding said gripping means and severing means into an operative position with respect to said tree, the center of gravity of said apparatus being offset from the horizontal axis so that said apparatus is normally inclined with respect to ground whereby the guide means is located in front of the gripping means when said apparatus is in an inoperative position with respect to the tree.
Claim 3
Dependent Claim
39 words
An apparatus as described in claim 1, wherein a portion of said guide means is arranged in line with a support for said severing means, said line extending substantially perpendicular to the plane of movement of said gripper claws.
Claim 4
Dependent Claim
19 words
An apparatus as described in claim 1, wherein said guide means is arranged substantially parallel to said bearing shaft.
Claim 5
Dependent Claim
14 words
An apparatus as described in claim 3, wherein said guide means is rotatably journalled.
Claim 6
Dependent Claim
14 words
An apparatus as described in claim 4, wherein said guide means comprising a rod.
Claim 7
Dependent Claim
31 words
An apparatus as described in claim 4, wherein said guide means is journalled to be moved by the action of spring force between a front starting position and a rear position.
Claim 8
Dependent Claim
22 words
An apparatus as described in claim 6, wherein said guide means includes a locking means to lock it in its rear position.
Claim 9
Dependent Claim
50 words
An apparatus as described in claim 7, wherein guide means is journalled by shaft pins at end and said locking means comprises a cam plate on each shaft pin and a rear stop to engage with the cam plate in the rear position to which said guide means is moved.
Claim 10
Dependent Claim
25 words
An apparatus as described in claim 4, wherein said guide means includes two side arms extending forwards and secured to parts of said support member.