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Publication numberUS1299591 A
Publication typeGrant
Publication dateApr 8, 1919
Filing dateApr 15, 1918
Priority dateApr 15, 1918
Publication numberUS 1299591 A, US 1299591A, US-A-1299591, US1299591 A, US1299591A
InventorsAlbert Malchow
Original AssigneeAlbert Malchow
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1299591 A
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Description  (OCR text may contain errors)




Patented Apr. 8, 1919.



vSpecification of Letters Patent.

Patented Apr; e, 191e.

Application tiled April 15, 1918. Serial No. 228,662.

to which it appertains to make and use the v Same.

new 'and useful This invention'A- relates t0 and particularly improvements 1n wrenches, t0 earoperated wrenches.l

ne object'of the present invention is to provide a novel and improved device of this character whereby the device is capable of use in right or left handed work, or for straight forward operation.

Another' object of the present invention 1s to provide a novel and improveddevice of this character which is simple in construction, cheap to manufacture, and easy and effective in its operation.

Other objects and advantages will be apparent from the following description when taken inl connectionv withy the accompanying drawing.

In the drawing:

Figure 1 is aside elevation of a wrench made in accordance with my invention.

Fig. 2 is a side elevation of the device, one side of the casing being removed to expse the'gearing.

ferring particularly to the ing drawing, 10 represents a caslngwhich 1s divided longitudinally into two sectlons, said sections being detachably secured together by means of thev screws 11. Formed longitudinally through the casing, and at oneA side of the center thereof, is a bore 12, and` disposed through this bore Ais a shaft 13,A having on the portion within the, casing a worm 14. One end of this shaft, which projects beyond the end of the casing, is `formed with a squared portion 15 for attachment of a socket member 16, whichv is adapted to engage the work to be operated upon.l The other end ofthe shaft extends a `considerable distance, beyond the other end of the casing and has slidabl disposed thereon a sleeve 17, said sleeve ing formed with a longitudinal slot 18 for the reception of the laterally extending pin 19 carried by the sa1 d shaft. Thus the sleeve is4 slidable longitudinally on the shaft, but rotatable with the to the side on which the device is to accompanyshaft, as will be more particularly' pointed' out hereinafter. The other or outer end of the sleeve is formed with a bifurcation, the inner end of Awhich terminates in a transversely disposed circular opening 20, said bifurcation being represented by the character 21. Removably disposed throughthe said opening 20, isa transversely dlsposed bar 22, one end of which is flattened, as shown at 23, for passage longitudinally through the bifurcation to permit the cylindricaly portion of the bar to .be disposed within said opening. By means of this bar the sleeve,v together with the shaft, can be rotatedto turn the worm formed thereon.

Disposed transversely through the casing is a short shaft 24, the opposite ends of which project from the opposite sides of .the casing as shown at 25 and 26, respectively, for the attachment thereto of the be fore-mentioned socket member 16, accreding engaged with the work. On the intermediate portion of the shaft 24 there is formed a -worm wheel or gear 27 which meshes with the before-mentioned worm of the sh aft 13, whereby when said shaft 13 is rotated the a motion will be communicated to thepshorter shaft 24, and thus operate the socket member thereon, and the work with which it is engaged. The socket mem' r is provided with a screw 28 by means of which it is held in its secure position 'on the ends of the shafts.

Thus there is provided a device which is capable of being used to operate on a piece of work, such as a nut, which is disposed on either the right or left hand side of an object or can Joe operated straight in front of the operator, case necessitatingthe. ,application of the vsocket member to the end of thel shaft 13. In the other cases the socket member is applied to one or the other end of the shorter shaft 24. On the shaft 13, at each side of the worm v14 there is disposed a friction washer 14.

By shank of the device is thus rendered capable of being lengthened or shortened to permit the'toolto reach different distaucesto suit the character of the work and the desires of the user.

yWhat lis claimed is:

reason of the slidable sleeve 17, the` sov as will be understood, the latter having a worm formed thereon and within the last-named shaft, and means for rotatthe casing, a transverse shaft disposed in the said sleeve.

through the Casing and having a worm wheel n testimony whereof, I afix my signature meshing with the said worm, 'a sleeve slidin the presence of two witnesses.

able on th'e first-named shaft and rotatable ALBERT MALCHOW. therewith, a work engaging socket arranged Witnesses:

for detachable engagement with the end of J. J. MAHONEY,

the first-named shaft and with the ends of CARL E. MALoHow.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2429569 *Nov 6, 1943Oct 21, 1947Stewart Edwin SGear driven socket wrench
US2478935 *May 27, 1944Aug 16, 1949B K Sweeney Electrical CompanyGear-operated wrench
US2584172 *Apr 1, 1947Feb 5, 1952Underwood Burl RAntifriction thrust bearing for electric socket wrenches
US4813308 *Nov 20, 1987Mar 21, 1989David PetrusTool adapter and method of using same
US5063796 *Mar 30, 1990Nov 12, 1991Gennep Jan VTool driver with a handle
US5168780 *May 22, 1991Dec 8, 1992Gennep Jan VanTool driver with a detachable handle having a light
WO1989004743A1 *Aug 5, 1988Jun 1, 1989David B PetrusTool adapter and method of using same
U.S. Classification81/57.29, 254/DIG.300, 81/177.85, 81/57.46, 81/34
Cooperative ClassificationY10S254/03, B25B17/00