US841517A - Chisel. - Google Patents

Description

PATENTED JAN. 15, 1907;

G. J. HARRis.

CHISEL.

APPLICATION FILED AUG. 11, 1906.

@J/farvw'a GILBERT J. HARRIS, or ATIIoL, MASSACHUSETTS.

CHISEL.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed August 1 1 1906. Serial No. 830,200.

To aZZ whom it may concern: I

Be it known that I, GILBERT J. HARRIs, a

citizen of the United States of America, re-

siding at Athol, in the county of Worcester and State of Massachusetts, have invented new and useful Improvements in Chisels, of

I which the following is a specification.

:This invention relates to improvements in I carpenters chisels or similar tools having a thereof.

driving end or head for the reception of blows from a hammer or other driving-tool, the object of the invention beingto provide a simple, strong, durable, and secure construction of driving end or head, whereby the handle of the chisel or tool may be used fora long period without liability of the blows of the driving-tool splitting, mashing, or otherwise injuring the drivingend of the handler In the accompanying drawings, Figure 1 is aside elevation of a chisel embodying my invention. Fig. 2 is a vertical cross-section Fig. 3 is a sectional plan view on line..3 3 of Fig. 2.

Referring to the drawings, 1 designates the tool or chisel, provided at its upper end with a socket 2 to receive the tang 3 of the driving head or handle 4. The said head or handle 4 is annularly reduced at its upper end, as

, shown at 5, thus providing at the base of such reduced portion an annular shoulder 6, the lower end of the reduced portion being outwardly flared or tapered, as indicated at 7.

I The head or handle is provided with a pair of saw cuts or grooves 8 and .9, arranged at right angles to each other and crossing or intersecting in the center line of the handle, the grooves preferably being of greater depth than the reduced portion 5 to extend a suitable distance below the same.

inforcing band, ring, or ferrule 10, whose incorrespond to the contour of the flared sur' A wedge or I spreader 12 is adapted to fit within the grooves 8 and 9 and comprises a casting of Surrounding the reduced portion 5 is a reternal surface is flared, as indicated at 11, to

face 7 of the reduced portion 5.

I cross or X form in horizontal section, providthus firmly and securely holding the parts in interlocking engagement.

After the ferrule has been applied to the re ducedportion 5 the spreader or extender 12 is inserted from above into the grooves 8 and 9 and then driven down into the same until its upper surface lies flush with the uppensurfaces of the portion 5 and ring, the intermediate portions of the outer edges of the flanges of the spreader resting in engagement with the intermediate surfaces of the inner face of the ring, thus securing a more efiective en'- gagement. It will thus be seen that the spreader, in addition to locking the ring in position by an action which insures its own firm retention, cooperates with the ring to form a metallic head of great strength to resist the blows of the driving-tool on the handle, thus enabling the latter to be used for a long period. without splitting or becoming mashed under the impact of the blows. The con struction is simple, may be-embodied in tools of this character at a comparatively low cost, and, aswill be readily understood, is exceedingly efiective in prolonging the life of such tools to a material extent.

Having thus described the invention, what is claimed as new is A tool-handle provided with a reduced end having its lower surface externally beveled and formed with transverse slots arranged at right angles'to each other, said slots opening through the upper edge of said reduced end and terminating below the base of said beveled portion, a ring or ferrule encircling said reduced portion and having its lower portion internallybeveled to bear against the beveled surface thereof; and a spreader of cruciform shape driven into said slots, said spreader being coextensive in depth with the slots and terminating at its outer end flush with the outer end of the ferrule and providing a series of wings tapered to wedge form to spread the walls of the reduced end into binding engagement with the ferrule, the latter being arranged to bear against said wings above the beveled surfaces.

In testimony whereof I affix my signature in presence of two witnesses.

GILBERT J. HARRIS.

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