US1542425A - Wrench - Google Patents

Description

June 16,1925. 1,542,425

c. 1.. VAN INWAGEN' WRENCH Filed Jafi. s; 1922. i

Patented June I 16, 1925.

CHARLES I. VAN INWAGEN, OF RUTHERFORD, NEW J ERSEY, ASSIGNOR TO WESTERN PATENT OFFICE.

ELECTRIC COMPANY, INCORPORATED, NEW YORK.

OF NEW YORK, N. Y., A CORPORATION OF WRENCH.

' Application filed January 5, 1922. Serial No. 527,03'5.

To all whom it may concern 7 Be it known that 1, CHARLES L. VAN IN- WAGEN, a citizen of the United States, residing at Rutherford, in the county of Bergen, State of New Jersey, have invented certain new and useful Improvements in Wrenches, of which the following is afull, clear, concise, and exact description.

This invention relates to tools and particularly to spanner wrenches, and has for its main object to provide certain improve ments therein whereby such tools are pre rented from becoming inoperative should theqlongitudinal pin or pins used in such devices break due to any overstress or defects in the structure of said pins.

In connection with mechanical distributing systems it is necessary that retaining screws or bearing caps employed therein must serve not only as abinding medium between two ormore parts, but in most cases their heads must present asufiiciently uniform bearing surface. This latter feature is accomplished by having the screws countersunk in the parts with which they are employed. To remove such screws requires the use of a' wrench of a particular structure, which in general, consists of a body with one or more pins extending therefrom to e11- gage apertures in the heads of such screws, thereby forming a binding between said screws and wrench so that the screw is easily removed upon the application of a' force to the body of said wrench. If for any reason a screw should become tightly. lodged in its setting, undue stress would have to be employed to remove such a screw. This undue stressmay cause the extending pin or pinsto bend or snap off rendering the wrench itself useless for further operation. Tlosupplya method whereby the junking of such wrenches upon the breaking of these pins becomes unnecessary and by which such wrenches in these emergenciesare supplied witli'new pins by a simple mechanical operationfistherefore a princi pal'object ofthis invention.

This object is accomplished by having the longitudinal pins removably engaged in magazines located in the body ofthe wrench and a set-screw arrangement to permit such pins to be removed and replaced by new pins, the set-screws holding the pins in a desired position.

In the accompanying drawing, forming apart of this specification and in which similar characters designate like parts throughout the several views, a clear conception of this invention in its preferred form is disclosed. Fig. 1 shows a sectional side elevation of the preferred form of this invention.' Fig. 2 shows a view looking down upon Fig. 1. Fig. 3 is a transverse section on the line in Fig. 1. Fig. 1 gives a view ofthe base of Fig. 1. r

The tool is illustrated as having a metallic casing or body 1, with apertures or magazines 5., 2 and '8, 3 located-therein. In the apertures 52, 2, which are cylindrical and short in length, are fitted bushings or hearing surfaces iand 4:, having central aper tures 1%, 1-1 in alignment with the apertures and 3. These bushings or hearing surfaces 1, a are of a harder material than that of casing 1, so that said casing is relieved of the crushing effect of the pins 5, 5 thereon, when said casing is caused to rotate by a force applied to it, and the extending portions of pins 5, 5 are engaged with an article to be turned, pin 5 being located in apertures and 1 1 and pin 5in3 and 1 1. This force may be applied in any number of ways, a preferred form of which isthe use of a stake or handle 6 located as shown in the hole 7 (and in a diametrically opposed hole not shown) in casing 1. It will be observed that the casing at 3-3 and in the neighborhood thereof is of a greater section than elsewhere. This is to provide room for the threaded cavities 8 and 8 and the set screws 9 and 9. The hole 15. is provided so that caps having extended studs may be removed bythe wrench, the studs fitting the said hole, and the extending portions 13, 13 engaging apertures in the bearing cap to be removed.

To remove a screw orbearing cap that is inaccessible to the ordinary type of wrench the extending portions 13, 13 of pins 5. 5 are set in grooves or holes in the screw head adapted to be used with such a wrench. The base 10 would then be flush with the head of the screw or bearing cap to be removed. A force of rotation is then applied to the cas ing or body llby turning the stake 6. Since the body 1 and screw head are bound togetlierbypins 5, 5 the rotation of said body will also cause the screw to rotate and theretit) by he removed or inserted as the case may be. If for any reason the extending portions 13, 13 of pins 5, 5 should break, the tool is withdrawn from the screw head, set screws 9, 9 are loosened in the usual way thereby relieving the pins 5, 5of the pressure exerted thereon by screws 9, 9 at the points 12, 12'. The loosening of the set screws 9, 9 allows a new pin or pin portions located in the magazines 3, d to move down the magazines by gravity or o'her means, thereby providing new extending portions \Vhen the pins are adjusted to extend a certain length from said magazine, the set screws 9, 9 are then tightened and contact is thereby made between pins 5, 5 and set screws 9, 9' the points 12, 12, and the pressure there by exerted when the set screws are driven home holds the pins 5, 5 in the desired po' sition. The wrench is therefore again operable.

In the above description it is stated that new extending portions such as 13, 123 are provided when a new pin 5 falls in place when relieved by set-screw 9. It is not to be understood that the magazine 2 must carry successive new pins or pin portions to replace any of the pins that become broken, but said magazine 2 may carry but one long pin as shown in the drawing, so that when the end thereof breaks the single pin is simply moved further down the magazine until it again extends therefrom. Should the fracture be ragged the ends of the broken pins may be filed or ground down until said pins conform to the receptacles in the screw head with which they are to engage.

Vhat is claimed is 1. A tool comprising a casing having longitudinal apertures extending therethrough, bushings to fit said apertures, each of said bushings being provided with an opening, pins adapted'to fit said openings in said bushings, and adjustable means for retaining said pins in the openings of said bushings in adesired position.

2. A tool comprising a casing with a plurality of apertures located therein, bushings and pins adapted to fit said apertures, said bushings being in certain of said apertures. and said pins adapted to fit other of said aperturesfand means tor adjusting the po sition of said. pins in said apertures.

3,. A tool comprising a casing with a plurality of apertures and having a certain hardness, bushings to fit certain of said apertures, said bushings being of a harder material than that of said casing, an aperture in each of said bushings, pins slidably engaged in the apertures of said bushings, and means for retaining said pins in the apertures of said bushings in a desired poaition.

l. A tool comprising a casing with threaded cavities circumferentially located therein and with longitudinal apertures located in said casing, bushings adapted to fit certain of said apertures and having longitudinal openings in said bushings, pins fitting said openings set-screws fOISaiCl threaded cavities and engaging said pins to hold them in a predetermined position, and means located externally to said casing to impart rotational movement 'to said pins.

5. A tool comprising a casing with longi tudinal apertures located therein and with a second set of apertures located at one end of said casing and superimposed on said longitudinal apertures, said second set of apertures being of larger cross-section and of shorter length than said longitudinal apertures, pins slidably fitting said longitudinal apertures, metallic bearing surfaces for said pins located at one end of said casing and of a harder material than said casing, adjustable means for regulating the position of said pins in said longitudinal apertures, said pins extending from said apertures a certain length subject to a predetermined setting of said adjustable means, and means located on said casing to cause said pins to rotate concentrically with the axis of said casing.

6. A tool comprising a body portion having a plurality of longitudinal apertures located herein, certain of said apertures varying in cross-section throughout their length, pins adapted to extend tlinough said certain apertures and substantially filling one portion thereof, and a member, provided with a hard bearing surface substantially filling the space between said pins and the wall of another portion of said aperture.

7, A spanner wrench comprising a casing with apertures in the end thereof, a bushing to fit each of said apertureS having an open ing therethrough, pins adapted to fit into the openings in said bushings and to extend beyond the 6nd of said casing, and adjustable means for retaining said pins in a fixed position in the openings of said bushings.

8. A tool comprising a casing having longitudinal apertures extending therethrough. each of said apertures having an enlarged portion at one end of said casing, a bushing fitting into the enlarged portion of each of said apertures having a longitudinal opening therethrough, a pin fitting eachof said openings and adapted to pass through the entire length of said apertures, and ad justable means including a set-screw for retaining each of said pins in a predetermined po sition in said openings. 7

In witness whereof, I hereunto subscribe my name this 3rd day of January, A. D. 1922.

onas; L. VAN INWAGEN.

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