US1426847A - Bolt-retaining attachment for wrenches - Google Patents

Description

E. K; DEGENEW; BOLT RETAINING ATTACHMENT FOR WRETTMIE'S.

APPLICATION FILED JAN.27, I92!- 1,426, 8&7 Fatented Aug. 22 19222.

Jgl. Y

I: Edward Kllglgenar'- tnnrsn srares EDWARD K. DEGENER, OF LEWISTOWN, MONTANA.

BOLT-RETAINING: ATTACHMENT FOR WRENCHES.

Specification of Letters Patent. Patented. Aug, 22,. 1922,

Application filed January 27, 1921. Serial No. 440393.

T 0 all 20 ii om it may concern:

Be it known'that I, EDWARD K. DEeENER, a citizen of the United States, residing at .Lewistown, in the county of Fergus and State of Montana, have invented certain new and useful Improvements in Bolt-Retaining Attachments for Wrenches, of which the following is a specification.

The present invention relates to'tools, and more particularly to an attachment for application to bolt removing wrenches of the brace and socket type and wrenches of the general character which require the retention of either the nut or the bolt head during the loosening of the opposite member.

An object of the present invention is to provide a simply and economically constructed device which maybe quickly and easily applied to an ordinary T or brace socket wrench, and which is adapted to operate in opposition to the wrench for holding either the nut or the head relatively stationary while the other member is turned by the wrench.

The invention has for a further object the provision of an attachment which may be clamped upon the wrench by means of a thumb screw and clamp of approved type, and which in itself is provided with means for resiliently drawing the attachment toward the socket of the wrench for maintaining'both the wrench socket and the socket of the attachment in correct position upon the opposite ends of the bolt; whereby the attachment may be applied to a socket wrench and the wrench with the attachment may then be used by one man in the removal of transmission and crank case bolts without a second manor assistant to hold the bolts stationary while the nuts are being removed.

A still further object of the present invention is to provide an attachment to a socket wrench, which, when applied thereto, forms a complete tool adapted to do the work of two men, and'which may be operated by one man, and a tool which will accurately and positively hold the bolt in place after the nut has been removed.

The above, and various other objects and advantages of this invention will in part be described in and in part be understood from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawing, wherein- Fig. 1 is a perspective view of an internal combustion engine having a socket wrench with the attachment of this invention mounted thereon and applied to the coupling bolts of the engine crank case.

Fig. 2 is a detail enlarged side elevation of a brace socket wrench having the bolt retaining attachment of this invention ap-- plied thereto.

Fig. 3 is a detail enlarged sectional view taken through the opposed sockets or heads of the wrench and the attachment.

Fig. 42 is a transverse section taken through the socket wrench substantially on the line 4-4 of Fig. 2, and showing the clamp of the attachment in engagement with the shank of the wrench.

Fig. 5 is an end elevation of the open en of the socket of the wrench.

Referring to the drawing, and first to Fig. 2,10 designates the shank of a'type of brace or quick acting socket wrench provided on its upper end with a crank portion 11 adapted to be manually turned for rotating the wrench. As shown'in Fig. 3, the lower end of the shank 10 carries a socket 12 fixed to the shank by a pin 13 so that the socket or head 12 rotates with the shank.

The head 1.2 is open at its lower end and provided with a non-circular opening-extending for a considerable distance up into to be compressed upon movement of a nut into the open end of the socket for the purpose of steadying the wrench upon the nut as will subsequently appear.

The attachment of the invention comprises a rod 17 of a length preferably greater than that of the shank 10, and which is provided with a return bend 18 upon its lower end adapted to aline with the shank 10.

The return bend 18 carries a socket or head 19, shown in Fig. 3, and which has a non-circular opening or bore therein in axial alinement with the head 12. The upper end of the rod 17 carries a spring 20, the upper end of which is seated against a washer 21 held upon the upper end of the rod by a transversely extending pin 22.

The lower end of the spring 20 bears against a bracket 23 which is preferably made in two parts 30 and 31. Each ofthe parts 30 and 31 includes a half circle sleeve portion 24, and a' flat'apertured portion 32,

which is bent into a plane substantially at right angles to the axis of the half circle sleeve, portion 24. In use, the flat portions 32 of the parts 30 and 31 are placed one upon the other, in order that the, apertures diate portions 33 of the parts 30-and31,

which: extend-radially from the half circle sleeve 'portion 24. The lower end of the spring. 20 rests solely upon the upper flat portion 32 of the part 30, as clearly illus-" trated in Figure 2 v 1 Thus,thebracewrench may be freelyrotated in the sleeve provided by the parts 30 and 31. Itis preferred that the spring 20 be: maintained under compression between the fixed Washer 21' and the flat portion 32 of the bracket 23 by aid of a pin 34, which engages-the under surface of the lower flat portion 32, belonging to the bracket part 31. LAsshown in Fig. 1,. the crank case 26 of an engine is provided with the coupling flanges 27 secured together by nut and bolts 28 of any approve'dtype;v The return bend 18 of the attachment is of such size as to-extend" and hold thehead 19 in proper alinement with the bolt heads and the rod 17 is adaptedfto strike the flanges 27 of the'casing for holding; the attachment from turning in either loosening or tightening the bolts 28.

It is-thu s seen that when the wrench and the attachment areapplie'd to a' bolt 28, turning of-the wrench will rotatethe nut upon the bolt and the-latter is held stationary by the -attachment. 1 a

The spring 20 holds the socket 19 up wardly in engagement with the bolt head so that; but oneman is required to operate the tool and. theoperator has both hands free to manipulate the crank of the wrench.

It is, of' course,understood that various changes and modifications may be made in,

the details of construction and design of the above specifically described embodiment of the present invention, such changes and modifications being restricted only by the scopeof the following claims.

What is claimed is: I

l; A socket wrench comprising a shank and a socket head, a retaining rod including a shank and a socket head, a' two part bracketmember adapted for attachment of said retaining rod to said socket wrench, and

whereby the shank of said retaining rod lies-substantially parallel with theshank of said socket wrench, said part of said two part member including a relatively fiat arcuated portion and a half circular sleeve. ortion, the 'aXis of the latter being substantially at right angles to the plane of the flat por' tion, said partadapted for pivotal mounting on'said rod independent of the other portion so that the half circle sleeve portions extend forwardly to 7 provide an enclosed sleeve for-loose gripplng about the shank of said socket wrench, and adjusting means engaging both parts of sald two part member intermediate the flat and sleeve portions thereof, whereby the sleeveportions can be readily adjusted with said rodas a pivot point for said parts, and spring means for engaging said ,two part member and said retaining rod for normally forcing the latter in direction to have the socket head thereof disposed adjacent the socket head off said socket wrench. v

2. A device of the class ClQSCI'lbGCl 'COIIlPI'lS- ing a socket wrench including a} shank anda socket head, a retaining rod including astem and a socket head, said socket head adapted for alignment with the socket head ofsaid.

wrench,'and to have the stem of said'rod lying substantially parallel with the shank of said wrench,a two, part member, each part of said member having an apertured end and ahalf clrcular sleeve end, each= apertured end of the two part member being adapted to pivotally receive said'rod independent" of the other aper tur'ed end and when so positioned having the half circle sleeve portion thereof providing asleeve for-gripping the shank of said wrench, a clamping screw for maintaining said parts of" said two: part member inposition whereby thewren'chmay berotated with respect to saidsleeve, anda spring engaging about said rod and abutting theapertured end of-but a single one of said partsfor normallyforcing the socket head of said rod upwardly to'wardthesocket head of said wrench.

EDWARD KJDEGENER.

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