US663162A

US663162A - Wrench.

Info

Publication number: US663162A
Application number: US1424300A
Authority: US
Inventors: James Fatkin
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-04-25
Filing date: 1900-04-25
Publication date: 1900-12-04
Anticipated expiration: 1917-12-04

Description

Patented Dec. 4', |900.

`.1. FATKIN.

W R E N C H.

(Application med Apr. 25,' 1900.,

2 Sheets-Sheet l.

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Nrrnn STATES JAMESYFATKIN, OF GULOH, COLORADO.

WRENCH.

SPECIFICATION forming part of` Letters Patent No. 663,162, dated December 4, 1960.

Application filed April 25. 1900. Serial No. 14,243.V (No model.)

To a/ZZ whom, it may concern,.-

Beit known that I, JAMES FATKIN, a citizen of the United States, residing at Gulch, in the county of Pitkin and State of Oolorado, have invented certain new and useful Improvements in Wrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in wrenches for pipes, rods, tubes, nuts, and the like, and more particularly to a modified construction of a type of wrenches shown in certain other applications iiled by me of even date herewith,

wherein the movable jaw has both a sliding and swinging movement relative to a fixed jaw, whereby when the said jaws are adj usted l to grasp a pipe, rod, tube, or nut a proper' manipulation of the handle will cause the movable jaw to grasp the object to be turned and upon a reverse movement of the handle the grip will be instantly released.

In the accompanying drawings, Figure 1 is an edge View of a wrench embodying my invention. Fig. 2 is a side elevation thereof. Fig. 3 is a partial sectional elevation with a portion of the operating-handle omitted and shows the movable jaw in section. Fig. 4 is a side elevation of a slightly-modified form of wrench with a part of the handle broken away. Fig. 5 is asection on line 5 5 of Fig. 4. Figs. 6 and 7 are side elevations of other slightly-modified forms of the improved wrench, parts of the handle and fixed jaw being omitted. Fig. 8 is a cross-section through the handle, the cheek-pieces being shown in elevation and the movable jaw being omitted. Fig. 9 is a cross-section through the movable jaw on line 9 9 of Fig. 2, with the screw omitted and showing the groove and end seat for the screw. Fig. 10 is an end view of the movable jaw with the screw omitted. Figs. 11, 12, and 13 are a side elevation, anend elevation, and bottom plan view,'respectively, .of the preferred form of nut. Fig. 14 is a bottom plan view of a modified form of nut; and Fig. l5 shows in side andpend elevation, respectively,still another slightly-modified form of nut as used in the construction of wrench shown by Fig. 7.

Similar letters of reference indicate similar parts throughout the several views.

In the drawings, A represents the handle of the wrench, which may be of a size and shape adapted to the particular use for which it is intended. At its extreme end the handle carries a stationary or fixed jaw A at a predetermined angle to the handle and havinga notched face a. Rising from the handle, on each side thereof and at a suitable distance from the jaw A,are thetwo cheek-pieces a 0,', between which the movable jaw `B is adapted to have a sliding movement, as will hereinafter appear. The movable jaw B has a serrated face b, which in the operation of the wrench is adapted to coact with the face o, of the iixed jaw A. Projecting rearwardly from the face b is the body portion B', provided with the slot b', extending longitudinally thereof, said body portion being adapted to fit between and be guided by the cheek-pieces d' a. Carried by said body portion B of the movable jaw, and preferably seated in a recess or groove Z913 formed therein below the lower face of the slot U, is a screw B2, the forward end b2 of which is seated in asocket b3 in the jaw in such manner that any thrust upon the jaw will be directly transmitted to the screw lengthwise thereof. At its opposite end the movable jaw is provided witha bearing h4, in which the rear unthreaded portion b5 of the screw B2 is mounted to turn freely, the end 0f the screw being extended beyond the said bearing and having fixed thereto in any appropriate manner the knurled head b.

In order to prevent endwise movement of the screw B2 in the movable jaw, the unthreaded bearing portion b5 thereof is provided with a circular groove o7, a complementary recess IOO with a screw-threaded groove c, adapted to be engaged by the threads of the screw B2. This nut lits between the cheek-pieces a.' a', to which it is loosely connected by a pivotpin c', which passes through a hole c2 in the nut above the screw-threaded groove c. At each end the nut C is provided with projections c3, which extend beyond the sides of the body portion of the movable jaw and embrace and bear upon t-he edges of the cheekand that movement of the handle A in the` direction of the arrow s will cause the movable jaw to turn on the pin c as a center, thus clamping the pipe, tube, or rod with a irm grip between the faces a and b of the jaws.

movable jaw on the pin c', thus separating the jaws and promptly releasing the object gripped. As the handle is moved to grip the i pipe, tube, or rod between the jaws strain i will be put upon the movable jaw, tending to i separate the two faces a and b, which strain,

groove to engage the screw.

through the screw B2, will be transmitted to the nut C and from it to the cheek-pieces a a' through the forward pair of Vthe projections 03 c2, which thus closely relieves thel pivot-pin c'.

In order to provide for the proper range of swinging movement of the movable jaw on the pin c', and thereby secure greater efficiency in the gripping action of the jaws, the portion of the handle between the cheekpieces is cut away or beveled, as at d,although this may not always be necessary, and, in` fact, depends upon the height of the pin coni nection between the cheek-pieces and nut C and the range of swinging movement desired for the movable jaw.

While I have described the above as the preferred embodiment of my invention, yetl the construction is susceptible of modifica,

tion and change. As, for instance, instead of placing the screw B2 in a recess Z213 in the body portion of the movable jaw such screw,

as illustrated in Figs. 4 and 5, might be` placed in a similar recess in the upper wall` of the slot b', in which case the nut C would be provided on its upper face with a threaded In this case the pin c will of course be passed through the nut below the threaded groove. Instead of the screw B2 passing through a groove in the upper or lower faces of thenut it may, if desired, pass directly through a screw-threaded hole therein, as indicated in Figs. 7 and 15,

A reverse movement of the handle in the direction of the arrow s' will turn thel in which B12 is the screw, and C5 is the nut, having the projections c3 cS at each end, as before, but being provided with a central longitudinally-threaded hole cw.

Since the strain to which the movable jaw is subjected is always lengthwise of the wrench, tending to force the jaws apart, itis not necessary to provide the nut with projections c3 c3 at each end thereof. -In fact, as illustrated in Fig. 6, the lugs or projections c3 at one end of the nut may be omitted altogether, in which case the lugs 013 on the opposite end of the nut would, as before, engage the forward edges of the cheelopieces.

By pivoting the sliding jaw to the cheekpieces loosely and providing the nut with projections to engage the cheek-pieces the pivotpin c is relieved of all strain.

It will be noticed that in the embodiment of the invention shown in Figs. 4 and 5 the clamping-faces of the movable and fixed jaws are substantially parallel when the said jaws are in the normal or open position. This feature is of particular advantage for hexagonal or other straight-faceted nuts.

Having thus described rnyinvention, what I claim is- 1. A wrench, comprising a handle provided with cheek-pieces projecting therefrom and a xed jaw formed at an angle to said handle beyond said cheek-pieces, a movable jaw provided with a longitudinal slot, and adapted to travel toward and from the fixed jaw in the space between the cheek-pieces and said fixed jaw, said movable jaw fitting between the said cheek-pieces, a nut in the slot of said jaw and pivotally connected with the cheekpieces, said nut having lateral projections or lugs to engage the outer edges of the cheekpieces, and a screw carried by said 'jaw and engaging said nut, substantially asset forth.

2. A Wrench comprising an operating-handle provided with cheek pieces projecting therefrom and a fixed jaw formed at an angle to said handle beyond the cheek-pieces, a movable jaw provided with a longitndinalslot, said movable jaw fitting between said cheekpieces, and having its clamping-face substantially parallel to the clamping-face of the fixed jaw, a nut in the slot of the movable jaw, and having laterally-projecting portions at opposite ends embracing said cheek-pieces, and a screw carried by the movable jaw and engaging saidnut; substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES FATKIN,

Witnesses:

SAM B. EUBANKS, WM. M. DINKEL.

IOO