Tree saw
OwnerRichard E. Diggsinventor
Life of this patent
Estimating the term…
Abstract
A tree saw for sawing trees beneath ground level. A saw blade is attached to the front end of a land vehicle which has furrow forming blades on the sides thereof. Movable cutting bits are pivotally attached to the saw blade longitudinal side edges and each bit has two cutting edges. One cutting edge contacts a tree during a forward stroke of the saw blade to cut the tree, and the other cutting edge contacts the tree on the reverse stroke to cut the tree. A hydraulic cylinder connected to the land vehicle moves the blade sideways to cut the tree while the vehicle moves forward and/or rearward.
Claims15
An apparatus for sawing trees beneath ground level, comprising:
- a mounting means having one end located beneath ground level;
- a saw blade having a forward and a rear end and attached to said one end and thus located beneath ground level;
- motive power means attached to said mounting means for urging said saw blade against a side of a tree and for alternately moving said saw blade in a forward and then in a rearward direction so that said saw blade undergoes a sawing motion;
- a multiplicity of cutting bits attached to said saw blade, each cutting bit having a base pivotally attached to said saw blade and a pair of oppositely directed cutting edges on said base and spaced from said saw blade, said bits being mounted on said saw blade to tip forwardly when said saw moves rearwardly and rearwardly when said saw blade moves forwardly so that during forward movement of said saw blade, one cutting edge is presented outwardly thereof for contacting a tree, and during rearward movement of said saw blade, the other cutting edge is presented outwardly thereof for contacting a tree for cutting a tree beneath ground level during movement of said saw blade in both said forward direction and said rearward direction when said saw blade undergoes said sawing motion, said cutting bits each including a pair of faces, each face having an arcuate cutting edge on one end and an arcuate relief edge on the other end thereof.
In combination with an apparatus for sawing trees beneath ground level having a land vehicle having sides and a saw blade mounted thereon, which saw blade has a multiplicity of cutting bits mounted thereon each of which has a base pivotally attached to said saw blade and a pair of oppositely directed cutting edges on said base, said bits being mounted to tip forwardly when said saw moves rearwardly and rearwardly when said saw moves forwardly so that each bit tilts to present one edge outwardly during a forward stroke and the other edge outwardly during a rearward stroke for contacting a tree to cut the tree on both a forward and rearward movement of the saw blade, a side blade pivotally attached to one side of the land vehicle and moving means for moving said side blade to a position whereat a portion of it is beneath ground level for making furrows adjacent a tree to be sawed.
Dependencies are inferred from the claim text.