US979920A - Pruning-saw. - Google Patents

Description

J. s. BENNETT.

PRUNING SAW. APPLICATION FILED T11R23, 191'0.

Patented Dec. 27, 1910.

@M. M} 4 E 6 5 nnrrn STATES PATENT QFFTCE.

JOSEPH S. BENNETT, OF FAYETTEVILLE, ARKANSAS, ASSIGNOR OF ONE-THIRD TO EMMETT W. LUCAS AND ONE-THIRD TO ARTHUR- G. LUCAS, OF FAYETTEVILLE,

ARKANSAS.

PRUNING-SAW.

Application filed February 23, 1910.

Specification of Letters Patent.

To all whom "it may concern:

Be it known that I, JOSEPH S. BENNETT, a citizen of the United States, residing at Fayetteville, in the county of Washington and State of Arkansas, have invented certain new and useful Improvements in Pruning-Saws; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to pruning saws of the class in which the saw teeth are set to face the handle whereby the sawing operation is on the inward stroke instead of on the outward stroke, as is usual with wood saws.

My object is to provide a Very strong and rigid connection between the frame of the saw and the handle block so that there will be no danger of their coming apart While the saw is being used.

Another object is to provide for empl0ying an extra long blade by shaping the frame in such a manner as to hold said blade taut and prevent it from buckling, which a long blade is apt to do and which it is hard to prevent in the commonly used rectangular saw frame.

The invention consists in the features of construction and combinations of parts hereinafter described and specified in the claims.

In the accompanying drawing illustrating the preferred embodiment of my invention: Figure l is a side elevation of the saw constructed in accordance with my invention. Fig. 2 is a top edge view. Fig. 3 is a broken section on the line m0a of Fig. 2, and Fig. 4 is a detailed section on the line y-ay of Fig. 1.

Referring more particularly to the drawing, 1 designates the handle block which is provided with the usual handle 2 and a passage o-r hole 3 extending through it edge- Wise from top to bottom and positioned well inward of the end of the block opposite the handle. This inner end of the block has its upper corner protruding, as at 4, beyond its lower corner. The upper face or edge of this protruding corner is grooved, as at 5, Fig. 4, to receive the frame 6. The frame is preferably made of one quarter inch pipe so as to be light and strong. It is bent into the general form of the short side and hypotenuse of a right angle triangle, the

blade 7 which is secured between the ends of said frame forming the other side of the triangle. The bend in the frame is preferably rounded, as at 8. The passage or hole 3 and groove 5 in the handle block are shaped to fit the short side and curved portion at the bend in the frame. It 'will be noted that the protruding upper corner 4: of said handle block serves as a brace to support the long extending portion 9 corresponding to the hypotenuse of the triangle. I propose to make the saw frame twentyfour inches long and it is necessary to pro- Vide some means for bracing it when made such a length in order to prevent it from sagging at its outer end which would cause the blade to become slack and very apt to break. The extension of the upper corner of the block below the inner portion of said extending part of the frame in the form of.

a brace, as shown, is a simple and cheap way of accomplishing this purpose.

If desired, a screw or bolt 10 may be inserted through the frame into the protruding portion 4 of the handle block, as illustrated in order to hold the portion of the frame, through which it is passed, firmly down in the groove 5. This may not be necessary because the frame will be held in the slot in the handle-block by the connection between the blade and the lower end of said frame which projects below said handle-block, said connection being arranged immediately below said block so that the blade contacts therewith. The portion of the handle-block arranged interiorly of the frame is preferably reinforced by screws or bolts 11 passed through it from side to side so as to prevent said block from splitting under strain. It will also be noted that the handle extends below the blade so that the force used in operating the saw, when gripped in the hand, is exerted in linewith said blade where it is most effectual.

While my invention, as described herein, is especially designed for pruning saws, its novel features of construction may also be employed on saws used for other purposes. It should also be understood that I do not limit myself to the details of construction herein shown and described, but reserve the right to make such changes as fairly fall within the scope of the appended claims.

By extending the handle below the blade so that the pull is in line with the cutting edge, the saw is not capable of cutting faster but the use of a very narrow blade is permitted because it will not pinch or bind in the kerf. I can,'therefore, provide a saw with a very long blade which is at the same time very narrow without danger of it being broken in use. These advantages taken with the draw-cut previously described, make my saw especially useful for the purposes for which it is designed.

I claim 1. In a saw, the combinatiomwith a frame comprising a strip bent to form a long arm and a short arm, of a handleblock provided with a hole extending edgewise therethrough and positioned well inward from the edge thereof, the short arm of the frame extending through said hole in the handle-block, the portion of the long arm, adjacent to. the short arm engaging the upper edge of said handle-block, and a blade secured at one end to the outer extremity of said long arm of the frame and at the other end to the extremity of the short arm, projecting through the opening in the handle-block, immediately below the lower edge of the latter whereby said frame is secured to said handle block.

2. In a saw, the combination, with a frame comprising a bent strip, and a blade carried by said frame, of a handle-block provided with a hole extending edgewise-therethrough, and a groove in its upper edge, a portion of said strip extending through said hole and another portion seated in said groove whereby the frame is prevented from turning in said hole.

3. In a saw, the combination, with a frame comprising a bent strip, and a blade carried a es by said frame, of a handle-block provided with a hole extending edgewise therethrough, a groove in 1ts upper edge, a portlon of saidstrip extending through said hole and another portion seated in said groove, whereby the frame is prevented from turning in said holeand a fastening passed through said strip and into the grooved portion of the handle-block.

4; In a saw, the combination, with a frame comprising a bent strip, and a blade carried by said frame, of a handle-block provided with a hole extending edgewise therethrough and positioned, well inward from the edge thereof, a portion of the strip comprising the frame extending through said hole, the

upper corner of the block inward of said hole being extended below the upper portion of the frame to serve as a brace for the frame substantially as and for the purpose specified.

5. In a saw,,the combinatiomwith a frame comprising a bent strip, and a blade carried by said frame, of a handleblock provided with a hole extending edgewise therethrougli, and a groove in its upper edge, a portion of said strip extending through said hole and another portion seated in said groove, the upper corner of the block inward of said hole being extended below the upper portion of the frame to serve as a brace for the frame, substantially as and for the purpose specified.

In testimony whereof, I my signa-' ture, in presence of two witnesses.

' JOSEPH S. BENNETT. Witnesses:

ART. LEWIS, WVJLL W. KEY.

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