US784772A - Detachable tool-handle. - Google Patents

Description

PATBNTED MAR. 14, 1905.

W. ASHERT. DBTAGHABTJE TOOL HANDLE.

APPLIQATION FILED 1211.11, 1904.

Patented March 14, 1905.

IINQTTED STATES PATENT OFFICE.

WILLIAM ASHERT, OF DES MOINES, IOWA.

DETACHABLE TOOL-HANDLE.

SPECIFICATION 'Orming part Of Letters Patent NO. 784,772, dated March 14, 1905.

Application tiled April 11, 1904. Serial No. 202,571.

To LZ/Z U17/1,071@ t may con/cern:

Be it known that I, 1V1LLIAMASHERT, a citizen of the United States, residing at Des Moines, in the county of Polk and State of Iowa, have invented certain new and useful Improvements in Detachable Tool-Handles, of which the following is a specification.

The object of my invention is to provide a a tool and handle in which the handle may be readily, quickly, and easily attached to thev with my improved handle applied thereto.l

Fig. 2 shows a longitudinal central sectional view of the tool and the adjacent portion of the handle. Fig. 3 shows a like view with the handle projected farther through the tooleye, and Fig. L shows a transverse sectional view through the center of the tool and the adjacent portion of the handle.

Referring to the accompanying drawings, I have used the reference-numeral 10 to indicate the tool. In the accompanying drawings I have shown a miners pick as the tool to be applied to the handle, it being understood that the handle is designed to apply to any similar tool. At the center of the tool is a handle-eye tapered from the lower to the upper surface of the tool, said handle-eye being oblong in shape. Near the top of the tool I have formed in the side walls thereof adjoining the handle-eye two notches to receive a cross-piece 11. These notches do not extend outwardly through the side walls of the tool. They simply `form a rest to receive the cross-piece 11, so that its top may be flush with the top of the tool. The said cross-piece is provided with a central opening designed to receive a screwthreaded rod 12, having a head 13, the said head capable of entering the cross-piece, so that its top is iiush with the top of the crosspiece. Formed in the center of the head 13 is an angular recess 14, designed to receive an angular wrench by which the screw-threaded rod may be turned.

The reference-numeral 15 indicates the body portion of the handle-socket. This body portion is preferably formed solid and may be of cast metal. Its exterior is tapered to accurately fit the handle-eye of the tool. At its outer end is a transverse notch 16, designed to admit the cross-piece 13 when the handlesocket is projected partly through the handle-eye of the tool. The outer surface of its lower end is tapered downwardly and inwardly and formed hollow to receive a wooden handle 17, which may be secured to the socket by the bolt 18. In the end of the wooden handle I have provided an opening 19 to receive the screw-threaded rod 12, as shown in Fig. 4.

In practical use it is only necessary to provide a single handle with a large number of tools, and assuming that the tools used in connection with the handle were miners picks the metal of which the tool proper is composed must be a relatively high-grade steel and the only parts of this steel that are subjected to excessive use and wear are the points, and yet there must be a certain weight given to the combined tool and handle to make the pick effective, and it is important in tools of this kind that the weight be almost wholly contained within the tool proper. For this reason I provide the tool proper with a handle-eye of relatively large size, so that there is little steel in the tool itself. I then form the socket-body to lit the interior of the handle-eye and form the said socketbody solid and so arrange the socket-body that the solid heavy portion thereof lies almost wholly within the handle-eye. In order to firmly secure the handle-socket in the tool, I place the cross-piece 11 in the shoulders provided for it at the sides of the handle-eye, and I then pass the screw -threadcd bolt 1Q through the opening in the cross-piece and into and through the body portion of handlesocket, which is screw-threaded to receive the said rod. Then thev rod 12 is turned as far as possible, the handlesocket will be firmly may be elevated out of the shoulders provided for it and turned to position longitudinally ot' the handle-eye, whereupon the tool may be detached and a new one substituted. Assuming that the socket-body portion does not fit the handle-eye of the new tool in the same way as the tool which is removed, then the operator may by turning the screw-threaded rod l2 far enough draw the handle-socketbody portion 'farther up through the handleeye until an accurate lit is obtained, as shown in Fig. 4L.

Obviously none of the parts of the attaching devices are exposed to wear or breakage and the major portion of the weight ot' the handle-socket body is contained directly in line with the longitudinal center ot the tool, as required for effective work.

Having thus described my invention, what l claim, and desire to secure by Letters Patent ot' the United States therefor, is-

l. The combination with a tool having a handle-eye and also having notches adjacent to the upper end of the handle-eye, of a crosspiece resting in said notches and formed with a central opening, a handle-socket having a body portion introduced into the handle-eye,

said body portion formed with a notch at its upper end to receive said cross-piece and a screw-threaded rod passed through the crosspiece and seated in the socket.

2. The combination with a tool having' a handle-eye tapered from its lower to its upper end, ot' a cross-piece at the upper end ot' the handle-eye resting on the tool-head, a handle-socket having a solid body portion tapered to iit the handle-eye and susceptible ot' projecting above the top of a tool-head having a handle-eye'ot sutlicent size and formed with a notch to receive the cross-piece, and a screw-threaded rod mounted in the cross-piece and seated in the body portion otl the socket.

3. The combination with a toolformed with a handle-eye tapered from its upper to its lower end and also formed with notches in the sides ot' the top portion of the tool adjacent to the handle-eye, otl a cross-piece restingI in said notches and formed with a central opening, a handle-socket formed with a solid body portion tapered to iit the handle-eye and formed with a transverse notch at its upper end to receive said cross-piece, a handle secured in the socket and a headed screwthreaded rod passed through the cross-piece through the notch in the top of the handlesocket and seated in the handle-socket, said rod formed with an angular opening in its head.

VILLIAM ASHERT Witnesses:

S. F. CHRISTY', J 15. SMU'iu\II;Yo

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