US1252105A - Crosscut-saw handle. - Google Patents

Description

K. G. GUSTAFSON;

CROSSCUT SAW HANDLE.

APPLICATION men MAR. 6, 1917.

Patented Jan. 1, 1918.

KARL epsusmrson, or; MULLAEN; ammo.

=.h arta hemasses Ratenmd-JaILI,191s;

- Application avi ion e,1917. "t nure-152350; f

To all whom it may, o'o ncem. re

*Bc'it. known that 1 KARL Gr. Gos'rarson, a citizen of ..the. United States, residing at Mullah; inthe countybf- Shoshone and gtateof Idaho, have invented certain new and useful Improvements in Crossc-ut'asaw Handles, of which the following is speci fication. I

This invention relates to improvements 1n cross out saw handles, which are intended to be detachably secured thereto and the embodiment of my invention involves the provision of a structure that will be rigidly secured to the end of a cross cut saw and which will not becomeloosened in its engagement therewith by use. It is an object of my invention also to rovide a detachable saw handle that may he quickly adjusted to the saw and which comprises a minimum of operating parts.

A stillfurther object of the invention is the provision of a device of the above stated character which shall be simple in construction, durable in use and that may be manufactured and sold at a minimum cost.

\Vith the above and other objects in view.

the invention consists in the novel features, details of construction and combination of parts which will be hereinafter more fully set forth and illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure l is a side view of my saw handle showing it attached to a portion of a cross cut saw.

Fig. 2 is a view looking from the rear and showing the nut lever. at right angles there- Fig. 3 is a cross section through Fig. 1.

Fig. 4 is a partial view. of the clamping screw.

Referring specifically to the drawings in which like characters of reference indicate like parts throughout the several views the numeral 1 designates a saw handle with a squared lower portion 2 upon theface thereof that engages saw and 3. I provlde a plate 4 with a central groove therein extending the entire length and provided to receive the end of the saw blade. Centrally of the plate and passing through the handle Upon the oppositeend engaging the threaded po'rtion is anut 8 th-readably'- engaged therewith and provided with an extended lever arm 9 comparatively thin and of'metal that will spring easily in the hands of the operator. Upon the inner face at 10 of the lever is a pin and upon the handle to register therewith is a pin socket llwhich is intended to receive the pin 10 and retain the lever in set position and against dis- I end of the handle a cut out portion 12 which gives sufficient room for the fingers to get under the lever to withdraw the pin for removing the handle. Upon the back side of the squared portion of the handle I insert a plate 13 preferably of metal and provide a recess 14 of suflicient depth and size that it will receive the key lever when the same is disposed in the position shown in Fig. 2. This will allow a certain amount of slack between the handle and the saw blade and will allow the end 6 thereof to be disengaged from the saw blade.

When I again wish to engage the blade in the handle I insert the hooked end 6 of the clamping screw to the saw and turn the nut 8 with the lever downward and in so doing I take up the slack between the handle and the saw and closely engage the parts thereto. To provide this take-up I provide on opposite corners of the plate 13 a slight bevel 16 and as the lever is turned the edges will engage the bevel and dispose the lever in the position shown in Fig. 1. By means of the pin 10 and socket 11 I am enabled to maintain the key in a locked position and no amount of handling'can possibly serve to loosen the handle with respect to the saw blade. Most handles are engaged to the saw blade by means of a thumb screw or like device which under vibration and usedoes not afford positive engagement between the saw blade and the handle and it is to overcome this objection that I have devised the construction herein shown.

From the foregoing description it will be apparent that I have provided an efficient organization for carrying out the objects or my invention and while I have particularly described elements which are adapted to perform the function set forth it is obvious that various changes therein and in minor a ho'le in the saw'lolade and "is-provided to hold the-blade centrally ofv the handle.

detailsofconstrnction mayheresorted a detachalole'handlefa grooved, ,perforat- Without departing from the spiritand's'cope of the invention as defin'ediinand by: theappended claims. 5 I claim a 1. The combination aiidetachable perforated-handle and a screw engagingv the blade and passed through' the handle, a clamp nut on the" straw, a yieldable l0 leverlintegral ,withxthe-nut and a locking upon said lever adapted to engage a socket 'P. A 011, the handle.-

2.. Ther r b'nat imf@lph'ftfhibhof i 'edplate carried bythe handleand engaging saW'and passed through the grooved plate with a saw bladeof I corners; a'nut threaded on thev s'crew and provided'with-la yieldable lever to engage said. corners to take up slack, and means for locking said nut and lever .-l t st -mony e lz i x yf i etl 1 KARI; e. 6mm

1? and handle, a second plate on the screw at the outside of the handle having beveled 15 itheisaw5a clamping screw connected to the

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