US928167A

US928167A - Wrench.

Info

Publication number: US928167A
Application number: US46189708A
Authority: US
Inventors: George C Winslow
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-11-10
Filing date: 1908-11-10
Publication date: 1909-07-13
Anticipated expiration: 1926-07-13

Description

G. G. WINSLO W.

WRENCH.

APPLICATION FILED NOV. 10, 1908.

Patented July 13,1909.

2 SHEETS-SHEET 1.

G. 0. WINSLOW.

WRENCH.

APPLICATION FILED NOV. 10, 1908.

Patented Jul ls, 1909.

2 SHEBTS-SEEBT 2.

f \f \f 17 a /0 M 7:1 4-. V m 47 AAW? mid GEORGE O. WIN SLOW, OF KALAMAZOO, MICHIGAN.

WRENCH.

Specification of Letters Patent.

Patented July 13, 1909.

Application filed November 10, 1908. Serial No. 461,897.

To all whom it may concern:

ie it known that I, Grouse C. Vrnsnow, a citizen of the United States, residing at Kalamazoo, Kalamazoo county, Michigan, have invented cm-tain new and useful improvements in Wrenches, of which the fol lowing is a specification.

This invention relates to in'iprovements in wrenches.

The main objects of this invention are: First, to provid an improved wrench which can be easily and quickly adjusted to the work, has a very secure hold upon the work, and, at the same time, is readily disengaged therefrom. Second, to provide an improved pipe wrench which has a very secure hold upon the work, and, at the same time, one which can be rapidly manipulated without re-adjustment for each strore. Third, to provide an improved wrench which is very strong and capable of withstanding heavy lateral strains. Fourth, to provide an improved wrench in which the parts are easily assembled without the use of tools, thereby permitting the change of handles,tha t is, handles of different lengths,and the substitution or renewal of parts as occasion may require.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which,

Figure 1 is a side elevation of my improved wrench. Fig. 2 is a front elevation thereof. Fig. 3 is an enlarged detail, partially in longitudii'ial section, on a line corresponding to line 33 of Fig. 2. Fig. 4t a cross section, on a line corresponding to line l st of Fig. 3. Fig. 5 is a detail view, partially in longitudinal section, of a modilied construction. Fig. 6 is a detail section, on a line corresponding to line 6-6 of Fig. 5

In the drawing, the sectional views are taken looking in the direction of the little arrows at the ends of the section lines, and similar reference numerals refer to similar parts throughout the several views.

Referring to the drawing, the lever-like handle 1 is provided with a jaw 2 on its forward end. The handle is also provided with an upwaidly-projecting head 3 at its forward end and with a. curved bearing surface a on its rear edge and preferably with a curved bearing surface 5 on its forward edge, the bearings a and 5 being substantially concentric. The head 3 is preferably provided with forwardly-curved bearing surfaces 6 for the shank 7 of the movable jaw 8. The head is also preferably provided with an upwardlyirojecting lug 9 located centrally to engage the longitudinal groove 10 in the inner edge of the shank 7, the forward edge of the shank being adapted to rest on the bearing 6. The shank is threaded to receive the adjusting nut 11.

The handle and shank are connected by a loop-like link 12 having a cross piece 13 and a bearing surface 14 adapted to engage the bearing surface at on the rear edge of the handle, the cross piece being disposed between the jaw shank 7 and the handle, as clearly appears from the drawing. The link is also preferably provided with a bearing surface 15 at its front end with which the bearing surface 5 on the forward edge of the handle has sliding bearing contact, the

hearings

14 and 15 being substantially concern tric. The link is also provided with pipeengaging surfaces 16 on its forward edges, which engage the pipe as the wrench is ad j usted thereon, so that, on the forward movement of the handle, the jaw is thrown from the links into engagement with the pipe, and, on the rearward movement of the handle, the jaw is retracted into the link, thereby freeing the pipe.

The link 12 is preferably provided with a forwardly-projecting or overhanging portion 17 which engages the bearing surface 18 provided therefor on the rear edge of the jaw shank 7, which bearing surface is lo eated in front of the bearings for the for ward edge of the shank on the handle head, thereby supporting and strengthening the shank well toward the aw and also causing the movable jaw to tilt forwardly into clamping engagement with the work, the shank fulcruming upon the handle bearing head 6. To retain the nut 11 and also to support the parts when lateral strain is placed thereon 1 preferably provide the handle with an upwardly-projectiug lug 19 adapted to engage the groove 10 in the shank at the rear of the nut. This construction and arrangement of the parts enables them to withstand very heavy strains and further they are formed so as to secure a maximum of strength for the amount of ma:

tcrial used. The parts can be readily assembled without the aid of tools.

If desired, different lengths of handles may be provided and these can be quickly interchanged by the workman, as it is only necessary to turn the nut to free the shank when the parts are all freed.

In my improved wrench a very strong gripping action is secured, and, at the same time, the wrench is readily released, it being practically impossible that it shall become stuck or wedged upon the work, as in the rearward movement of the handle, the jaw 2 is retracted within the link, thereby freeing the wrench.

The wrench is quickly adjusted to the work, it only being necessary to turn up the nut 11 until the jaw S and the contacting surfaces 16 of the link are in loose contact with the work. On the forward movement of the handle, the jaw 2 is thrown into engagement with the work, and, as the movement continues, the tilting of the shank 7 causes the jaws to further clamp the work so that the engagen'ient is very effective, although, as previously stated, the wrench is easily released.

The cross piece 13 serves not only as a fulcruni or bearing for the handle, but also serves to brace the link, further strengthening the structure.

\Vith the parts thus arranged, the nut i1 is conveniently located so that it can be conveniently grasped and the strain on the threads in use is con'iparatively slight, so that they are not distorted, thereby affecting the adjustn'ient. This also secures a continuous bearing for the nut, so that it is not likely to be burred in use and is supported in the most effective manner.

In the modification shown in Figs. 5 and 6, my wrench is adapted for what is commonly designated as bright work,-that is, work which it is desired to handle without marring. The aws 20 and 21 are without teeth and are preferably provided with facings or shoes and 23 of rubber, or fabric. The clamping action is substantially the same in this as in the structure previously described, so that pipes may be efiectively held without likelihood of marring the surfaces. The shoe or facing 22 is preferably secured by means of a pin 24 arranged in the aw so that the handle can be slipped into the link, as before described. In this structure, the head is slightly modified, the projecting lug 9 being omitted. As other modifications will themselves to those skilled in the art to which this invention relates, I have not -I claim new and desire to secure by Letters Patent is:

1. The combination with a handle having concentrically-curved bearings on its front and rear edges and a head having a forwardly-curved bearing surface and an up wardly-projecting lug on its back, of a aw shank having a bearing surface on its front edge adapted to rest on said bearing surface on the back of said head, a bearing surface on its rear edge, and a longitudinal groove adapted to receive said lug on said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank, having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said bearing on the rear edge of said handle, said link being provided with a bearing surface adapted to engage said bearing on the forward edge of said handle with a sliding contact and with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in advance of the bearing point of said shank on said head, said link being also provided with a pipe-engaging surface on its forward edge whereby said jaw carriedby said handle is retracted into the link on the rearward movement of said handle; an adjusting nut threaded upon said shank at the rear of said link and arranged to bear against the rear edge thereof and of said cross piece; and an upwardly-projecting lug 011 said handle at the rear of said nut adapted to engagesaid groom in said jaw shank.

2. The combination with a handle having concentrically-curved bearings on its front and rear edges and a head having a for wardly-curved bearing surface and an upwardly-projecting lug on its back; of a jaw shank having a bearing surface on its front edge adapted to rest on said bearing surface on the back of said head, a bearing surface on its rear edge, and a longitudinal groove adapted to receive said lug on said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank, having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said bearing on the rear edge of said handle, said link being provided with a bearing surface adapted to engage said bearing on the forward edge of said handle with i a. sliding contact and with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in advance of the bearing point of said shank on said head; an adjusting nut threaded upon said shank at the rear of said link and arranged to bear against the rear edge thereof and of said cross piece; and an upwardly-projecting lug on said handle at the rear of said nut adapted to engage said groove in said jaw shank.

3. The combination with a handle having eoiuzentrically-curved bearings on its front and rear edges and a head having a bearing surface on its back; of a jaw shank having a barring surface on its front edge adapted to rest on said bearing surface on the back of said head and a bearing surface on its rear edge; aws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank, having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said bearing on the rear edge of said handle, said link being provided with a bearing surface adapted to engage said bearin g on the forward edge of said handle with a sliding contact and with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in advance of the bearing point of said shank on said head, said link being also provided with a pipeengaging surface on its forward edge whereby said jaw carried by said handle is retracted into the link on the rearward. movement of said handle; and an adjusting nut threaded upon said shank at the rear of said link.

l. The combination with a handle having (:OnCGnt]iCitllY-CHI'VGCl hearings on its front and rear edges and a head having a bearing surface on its back; of a jaw shank having a bearing surface on its front edge adapted to rest on said bearing surface on the back of said head and a bearing surface on its rear edge; jaws carried by said handle and shank; a looplike link adapted to receive said handle and jaw shank, having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said bearing on the rear edge of said handle, said link being provided with a bearing surface adapted to engage said hear ing on the forward edge of said handle with a sliding contact and withan overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in. advance of the bearing point of said shank on said head; and an adjusting nut threaded upon said shank at the rear of said link.

5. The combination with a handle having concentricallvcurved hearings on its front and rear edges and a head having a bearing surface on its back; of a jaw shank having a bearing surface on its front edge adapted to rest on said bearing surface on the back of said head; jaws carried by sald handle and shank; a loop-like link adapted to receive said handle and jaw shank, having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said bearing on the rear edge of said handle, said link being provided with a bearing surface adapted to engage said bearing on the forward edge of said handle with a sliding contact, said link being also provided with a pipe-engaging surface on its forward edge whereby said jaw carried by said handle is retracted into the link on the rearward movement of said handle; and an adjusting nut threaded upon said shank at the rear of said link.

6. The combination with a handle having eoncentrically-curved bearings on its front and rear edges and a head having a bearing surface on its back; of a jaw shank having a bearing surface on its front edge adapted to rest on said bearing surface on the back of said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank, having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said bearing on the rear edge of said handle, said link being provided with a bearing surface adapted to engage said bearing on the forward edge of said handle with a sliding contact; and an adjusting nut threaded upon said shank atthe rear of said link.

7. The con'ibination with a handle having a bearing on its rear edge and a head at its forward end, of a jaw shank having a hearing surface on its front edge adapted to rest on the back of said head, a bearing surface on its rear edge, and a longitudinal groove adapted to receive a lug on said head; jaws carried by said handle and shank; a looplike link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a bearing to engage said bearing on the rear edge of said handle, said link being provided with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in adva nee of the bearing point of said shank on said head, said link being also provided with a p1pe-engaging surface on its forward edge whereby said jaw carried by said handle retracted into the link on the rearward movement of said handle; an adji'isting nut threaded upon said shank at the rear of said link and arranged to bear against the rear edge thereof and of said cross piece; and an upwardly-projecting lug on said handle at the rear of said nut threaded to engage said groove in said jaw shank.

8. The combination with a. handle having a bearing on its rear edge and a head at its forward end, of a jaw shank having abearing surface on its front edge adapted to rest on the back of said head a bearing surface on its rear edge; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a bearing to engage said bearing on the rear edge of said handle said link being provided with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point. in advance of the bearing point of said shank on said head, said link being also provided with a pipe-engaging surface on its forward edge whereby said jaw carried by said handle is retracted into the link on the rearward movement of said handle; and an adjusting nut for said shank.

9. The combination with a handle having a bearing on its rear edge and a head at its forward end of a jaw shank having a bearing surface on its front edge adapted to rest on the back of said head, a bearing surface on its rear edge, and a longitudinal groove adapted to receive a lug on said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same said cross piece being provided with a bearing to engage said bearing on the rear edge of said handle said link being provided with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in advance of the bearing point of said shank on said head; an adjusting nut threaded upon said shank at the rear of said link and arranged to bea against the rear edge thereof and of said cross piece; and an upwardlyprojecting lug on said handle at the rear of said nut adapted to engage said groove in sa i d jaw shank.

it). The combination with a handle having a bearing on its rear edge and a head at its forward end, of a aw shank having a hearing surface on its front edge adapted to rest on the back of said head an inwardly-curved bearing surface on the rear edge of said handle; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said inwardly-curved bearing on the rear edge of said handle said link being provided with an overhanging portion arranged to engage the bearing surface on the rear edge of said shank at a point in advance of the bearing point of said shank on said head; and an adjusting nut for said shank.

11. The combination with a handle having a bearing on its rear edge and a head at its forward end and an upwardly-projecting lug at its back; of a jaw shank having a bearing surface on its front edge adapted to rest on the back of said head and a longitudinal groove adapted to receive said lug on said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a bearing to engage said bearing on the rear edge of said handle said link being also provided with a pipe-engaging surface on its forward edge whereby said jaw carried by said handle is retracted into the link 'on the rearward movement of said handle; an adjusting nut threaded upon said shank at the rear of said link; and an upwardly-projecting lug on said handle at the rear of said nut adapted to engage said groove in said aw shank.

12. The combination with a handle having a bearing on its rear edge and a head at its forward end; of a jaw shank having a bearing surface on its front edge adapted to rest on the back of said head and a longitudinal groove adapted to receive a lug on said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said crosspiece being provided with a bearing to engage said bearing on the rear edge of said handle, said link being also provided with a pipe-engaging surface on its forward edge whereby said jaw carried by said handle is retracted into the link on the rearward movement of said handle; an adjusting nut threaded upon said shank at the rear of said link; and an upwardly-projecting lug on said handle at the rear of said nut adapted to engage said groove in said jaw shank.

13. The combination with a handle having a bearing on its rear edge and a head at its forward end and an upwardly-projecting lug at its back, of a jaw shank having a bearing surface on its front edge adapted to rest on the back of said head and a longitudinal groove adapted to receive said lug on said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a bearing to engage said bearing on the rear edge of said handle; an adjusting nut threaded upon said shank at the rear of said link; and an upwardly-projecting lug on said handle at the rear of said nut adapted to engage said groove in said jaw shank.

14:. The combination with a handle having a bearing on its rear edge and a head at its forward end; of a jaw shank having a hearing surface on its frontedge adapted to rest on the back. of said head and a longitiulinal groove adapted to receive a lug on said head jaws carried by said handle and shank; a

loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said crosspiece being provided with a bearing to engage said bearing on the rear edge of said handle; an adj asting nut threaded upon said. shank at the rear of said link; and an upwardlyprojeating lug on said handle at the rear of said nut adapted to engage said groove in said jaw shank.

15. The combination with a handle having an inwardly-curved bearing on its rear edge and a head at its forward end; of a jaw shank having a bearing surface on its front edge adapted to rest on the back of said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a curved bearing to engage said inwardlvcnrved bearing on the rear edge of said handle; and an adjusting nut threaded upon said shank at the rear oi said link.

16. The combination with a handle, 01' a threaded jaw shank; a loop-like link adapted to receive said handle and jaw shank hav ing a, cams-piece disposed between the same,

said cross piece being provided with a hearing, said handle being provided with an upwardly-extending hook-like projection at its forward end to engage said cross piece; a nut arranged on said shank at the rear of said link; and an upwardly projecting lug on said handle at the rear of said nut.

17. The combination with a handle having a bearing on its rear edge and a head at its forward end of a aw shank having a bearing surface on its front edge adapted to rest on the back of said head; jaws carried by said handle and shank; a loop-like link adapted to receive said handle and jaw shank having a cross piece disposed between the same, said cross piece being provided with a bearing to coaot with said bea ring on the rear edge of said handle, said bearings constitutii'ig the pivotal members of the parts; and an adjusting means for said shank.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

GEORGE C. VVINSLLWV.

Witnesses CLARA E. BnAnnN F. G. 'TALL'MAN.

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