US1469589A - Charles g - Google Patents

Description

Oct. 2 1923.

C. G. PALMER SOCKET WRENCH Filed Dec. 15 1921 .Il V..

/m/ENTOR Patented Oct. 2, 1923.

PATENT OFFICE.

CHARLES G. PALMER, OF NEWARK,` NEW JERSEY.

SOCKET WRENCH.

' Application led December 15, 1921.v Serial No. 522,506.

T o all whom t may concern.'

Be it known that I, CHARLES G. PALMER, a citizen of the United States, residing in Newark, inthe county oi' Essex and State of New Jersey, have invented certain new and useful Improvements in Socket Vrenches, of which the following is a speciflcation. y

l The principalpurpose of this invention is to produce a wrench, of the xed socket type, in which a plurality of reversible heads, each having two unlike openings, are interchangeably yengageable with a single l operating bar.

Another important object is to provide storage .mounting means for such of the heads as are not in o erative position whereby anyselected hea is instantly accessible for use.

A further purpose is in the provision of simple' but effective means for retaining a selected head in operative position on the wrenchhandle bar, similar means also be` ing used in preventing the remainingheads from becoming displaced.

These and other objects, such as convenience, strength, simplicity and economy in construction, are secured by the novel construction and combination of parts hereafter fully described and clearly shown in the accompanying drawing, forming a material part of this disclosure, and in which i' Figure 1 is a perspective view of a wrench showing an embodiment of the invention, one of the heads being in operative position and shown in longitudinal section to disclose its construction.

Figure 2 is an enlarged fragmentary plan view of the same looking from the engaging side.

The handle bar, designated in the drawing by the numeral 5, is formed with a rela` tively short right angle extension 6 at one end, from bar steel of uniform hexagonal cross section, both end surfaces being iin- Y ished flat and square across.

Adjacent the end surface 6', of the bent portion of the bar, is a shallow annular groove 7 having a semi-circular concave bottom and adapted to loosely coniine a spring metal ring 8 having an opening 8 between its adjacent ends which permit contraction of the ring within the groove, while normally the periphery of the ring extends slightly outward beyond the flat longitudinal surfaces of the hexagonal bar.

A similar groove 9 is formed adjacent to the end 5 of the handley bar and fitted to it, in a like manner, is a corresponding spring ring v1() having a spaced endopening 10.

"he wrench heads, three of which are shown, respectively 11, 12 and 13 are each essentially cylinders of varying diameter and length as best suited to the sizes of the socket opening contained in their respective ends, both of which are fitted to receive and neatly engage nuts, bolt heads, etc., in turning the same, the articles being variable in sizes, proportions and cross sections.

As an illustration, the head 11 is seen to have a hexagonal socket 14 in one end and a slightly larger socket 15 in `its opposite and operatively disposed end.

Disposed midway between `the socket openings is a web 16 having a central hex. agonal through opening' 17 fitting the handle bar element 6 and also capable of sliding over the main, straight portion 5 of the bar, and it is to be understood that each 'of the several socket'heads are duplicateswith 1respect to the web 16 and opening 17.

From the foregoing it will be apparent that upon entering the bar element 6 through either end of any ot the socket heads, the extending portions 6 will, by proper manipulation of the bar and head respectively, find .its way into the axial opening 17 and upon applying suiiicient pressure, cause the curved contacting periphery of the ring 8 to contract, thus preventing retraction and consequent separation of the parts until considerable force is exerted.

In order to avoid having the end 6 of the handle bar project unduly into the sockets disposed for operative engagement with an article, detent lugs 18 extend integrally out from opposed points on the bent portion 6 of the handle bar to engage the adjacent surface of the web 16, these detents being so located as to permit the spring ring 8 to properly function, thus preventing respective longitudinal movement.

It will be seen that the socket heads, not in actual use, can be readily slipped over the retaining spring ring 10 at the outer, straight end 0i the bar 5 and when so mounted are held in a convenient manner, safe from loss and instantly accessible at will.

While certain preferred embodiments of this device have been shown and described, it will be understood that changes in the form, arrangements, proportions, sizes and;

details thereof may bemade Without departing from the scope of the invention as defined in the appended claims. Y

Having thus described my invention, What I claim as new and desire tonsecure by Letters Patent, is-

' l. A Wrench comprising an angled handle bar of uniform cross section, a reversible socket head having unlike sockets in each end, a web in said socket intermediate said end sockets, said Web having an opening engageable with said bar, and means at each end of said bar for retaining saidy head thereon.

2. A wrench comprising an angled handle bar of uniform cross section, a reversible.

' socket head having unlike sockets'in each end, means interjacent said sockets engageable with said bar, and spring detente carried by said bar lor securing said heads upon either the straight or angled portion of said bar. 'l

3. A Wrench comprising a hexagonal bar having an angularprojection said projection having a'shallow annularl groove adjacent its end, a double ended socket head, a transverse web in .said head intermediate said sockets fitted to receive said projection, and a single spring ring carried in said groove, said ring being suited to pass through the opening in said Web and engage the side opposite said har.

4, A Wrench comprising a bar of polygonal cross section, a short angular extension at one end thereof, said extension having an annular groove near its end, a split ring loosely contained in said groove, a cylindrical head having unlike Sockets in each end, a transverse web intermediate said sockets, said web having an opening suited to receive said extension and permit the forced passage of said ring, andy detent lugs integral with said extension adapted to contact with said web limiting the position of said ring with respect to the web.

5. A wrench comprising a bar of polygonal cross section, a short angular extension at one end thereof, annular grooves near the ends of saidbar and its extension, detente on said extension spaced definitely from the ring carried thereby, a reversible socket head having unlike sockets in their' opposite ends, and Webs in said` heads having openingsn receptive of said bar, said Webs being uniformly equivalent in thickness to the distance between said detents and adjacent 6. Av wrench comprising a bar having polygonal sides, an angular extension at one end, stops on said extension, a double ended socket head having a central part suited to 05 receive said bar or its extension, spring means carried by said extension adapted to engage one side of said part to maintain the other side of the part in contact-With said stops whereby said head is held in operand witnessed

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