US1282028A - Wrench-socket. - Google Patents

Description

w. s. BELLOWS, WRENCH SOCKET.

APPLICATION FILED JAN. 28, I916.

Inven$4g Vi 1 12 1 6% 3.39270 ws; v

Patented Oct. 22, 1918.

WARREN S. BELLOWS, 0F WORCESTER, MASSACHUSETTS.

WRENCH-SOCKET.

Specification of Letters Patent.

katented on. 22, in.

Application filed January 28, 1916. Serial No. 74,953.

To all whom it may concern:

Be it known that I, WARREN S. BnLLows, a citizen of the United States, and a resident of Worcester, in the county of Worcester and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Wrench-Sockets, of which the following is a full, clear, and exact specification.

This invention relates to an improved means for enabling metal rods to be attached to sockets for the economical and efiicient manufacture of wrenches, and formed a part of my patent application which eventuated in U. S. Letters Patent No. 1,167,542, granted January 11, 1916.

In the drawings forming part of this specification, Figure 1 is a side view of a length of metal rod bent to compose a handle and a shank, and having my socket connected therewith. Fig. 2 is a side view of a length of metal rod bent for the same purpose but in a difi'erent manner, showing the socket in section. Fig. 3 is a longitudinal section of the socket alone. Fig. 4 is an end view of the socket. Fig. 5 is an end view of the same but from the opposite direction. Fig. 6 is a perspective view of the end portion of a length of metal rod shaped for attachment in the socket.

The socket member 1 consists of a forging or casting havin a socket 2 in its lower end, and an axially disposed hole 3 opening from said socket through to the upper end-of said member. As illustrated in Fig. 4, the socket is hexagonal, but it is evident that the same may be of an desired shape and size to fit the kind of olts and nuts for which the wrench may be used. As shown in Figs. 4 and 5, said hole 3 is not cylindrical, but the upper section thereof is made with two parallel fiat surfaces 4, 5, and two limited cylindrical surfaces 6,'the object of which is hereinafter set forth. The lower section of said hole is larger than said upper section, taper- ,into each other, as shown in Figs. 3 and 4.

1 handle and shank of this wrench consist of a single length of metal rod bent to form a shank 7 and cross handle 9. In

forming said parts, the rod is first bent united by the connecting section 13. This construction is illustrated in Fig. 1, and while it forms a most practical arrangement, it is still further improved upon by prolonging the handle and bending over upon it the prolongation 14, as shown in Fig. 2. This prolongation terminates at the intersection of the handle and shank.

To fasten the shank within the socket member 1, the former has two opposite portions of its surface milled away to fit between the surfaces 4 and 5, while the diameter or the shank is the same as that of the curved surfaces 6. Fig. 6 shows the milled portions. After such milled section has been introduced into the hole 3, the end of said section is hammered until the metal has been forced laterally to practically the tapered section 8, as illustrated in Fig. 2, the shoulders 12 immediately above said milled portions serving to keep the socket member from slipping upward on the shank.

This not only looks the shank from withdrawal from the socket, but, said section 8 being, also flattened, as shown in Fig. 4, the forcible turning of the socket with the handle is perfectly insured.

It will be observed that upon expanding the end of the shank, the metal is forced against the inclined walls of the opening in the socket, and at the same time the socket is forced into tight engagement with the shoulders on the shank, thus positively pre venting any possible looseness or we bling of the socket on the shank. The construction illustrated enables the use of a round wire handle or shank, and the efi'ective securing thereon of the socket with a miniwith the ordinary heading or upsetting of the end of the shank. With this construction, it is apparent that the connection between the shank and socket must become loose on the whole length of the inclined walls before an relative movement of the socket and she can take place.

at I claim is:

1. A wrench comprising a socket formed on one side thereof with a recess to fit a nut or bolt head and in the opposite end thereof with an irregular shaped opening extending into said recess, the walls of said opening opening extending into the diverging toward the base oi. the recess and a shank provided with a reduced end having a cross section corresponding substantially with the irregular shaped opening and adapted to fit therein, the extremity of said reduced portion of the shank being expanded into snug engagement with the walls of the irregular shaped opening in the socket.

2. A wrench comprising a socket formed in one end thereof with a polygonal recess adapted to receive a nut or bolt, and in the opposite end thereof with flat sided opening extending into said recess, the walls of said opening diverging inwardly to the base of the polygonal recess, and a shank having one end thereof also fiat sided to fit there into and interlock therewith, the said shank being provided with shoulders above the flat sided opening, and the extremity of said fiat sided end of the shank being upset to.

force the same into a snug engagement with the diverging walls at the flat sided open= mg and to force the socket tightly against the shoulders on the shank.

3. A wrench comprising a socket member provided in one end thereoi with a polygonal recess adapted to receive a nut or holt head, and in the opposite end thereof with olygona to the radius of the curved walls of the opening in the socket, one end of said rod being provided with a pair of opposed fiat faces corresponding with the flat walls of the opening in the socket, said fiat faces terminating at their inner ends in square shoulders, said flat faces and shoulders being formed by milling away portions of the rod, the said end of the shank being adapted to snugly fit within the opening in the socket and the extremity thereof being upset to force the same into tight engagement with the fiat walls of the opening and to force the socket tightly against the said shoulders on the shank.

In testimony that I claim the foregoing invention, 1 have hereunto set my hand this 25th day of January, 1916.

WARREN S. BELLQ'WS F/itnesses:

Nrcmnson, Goo, in. Enact-ram,

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