US752510A - Wrench - Google Patents

Description

PATENTED FEB. 16, 1904.

W. J. BERRYMAN.

WRENCH. `APPLIGATION FILED JULY 1, 1903.

Patented February 16, 1904.

UNITED STATES PATENT OFFICE.

" 'winLinivi J,"-BERRY1\1AN, or` TYNRR, NORTH cARomNA.

A.wFiENoi-i.

' fsrEcIFreArioN forming partei Lef-.ters Patent Np. 752,510, daten reti-nary 1c, 1904.

Y. Application led July 1,1903. Serial No. 163,916. `(llo model.) l

Tall 4whom, noa/y concern.: 4

fBe it known that I, JVILLIAMJAMES BERRY- MAN, acitizen of the United States, residing at Tyner, inthe county of Chowan and StateV 5 ofA North Carolina, have invented new and usefulA Improvements in Wrenches, of Iwhich the following is a specification.

My invention relates to new and useful im- Vprovements in wrenches. lts object is topro- Iovide 'a com pound tool which can be used either With the above and `other objects in view the invention `consists in the 4novel construction, combination, and arrangement of parts .hereinafter more fullydescribed and claimed,

2 5 and illustrated in the accompanying drawings,

in which- Figure 1 is a side elevation of my improved compound tool. Fig. 2 is a longitudinal section therethrough; and Fig. 3 is a section on 3o line 3 3, Fig. 2.

Referring to the figures by numerals-'of reference, 1 is a shank having teeth 2 at the opposite sides thereof at a point between its ends, and one end of the shank has a trans- 3 5 versely-extending groove 3 in one side, while the opposite side is provided with a notch 4. The head 5 of a pipe-wrench is adapted to be moved laterally upon this end of theshank, said head being provided with a recess 6, which 4o extends thereinto from one side and has a tongue 7 projecting from one wall and adapted to engage the groove 3. Within the recess 6 and directly opposite the tongue 7 is a springcatch 8, which is adapted after the head has 45 been moved into proper position upon the shank 1 to engage therecess 4 and lock the head in place. The working face of the head 5 is preferably toothed or serrated, as shown at 9. This-face is in alinement with a block 50 10, which is pivoted at its inner end to a slid- A extends through the outer end of jaw 11.

ing jaw 11, mounted on shank 1. An adjusting-screw 12- is swiveledy to the block 10 and By means of this screw the block l() can be adjusted to any desiredl angle' in relation tothe 55 inner face of the jaw 1-1. Aperture's 13 are formed in opposite sides of the sliding jaw 1-1, and within each is pivoted a spring-pressed pawl1-4. These pawls' normally engage the teeth 2 on shank 1 and serve to look the jaw 6o 11 in any position to which it may be adjusted.

1n order to release the jaw, so as to move it the head, and spring-strips 17 are secured with- 7o in this slot and bear upon the inner faces of oppositely-disposed dogs 18, which are pivoted Ywithin thefslot at points `between their ends.

These dogs project into the head 15 of the'shank and are adapted toengage teeth 19, which are 7 5 arranged upon the periphery vof a hub 20. This hub is revolubly mounted within a circular aperture 21, formed within the head 15, and its side faces are provided with annular grooves 22, one of which receives a ring 23, which iits 8o within one face of the head 15 and is adapted to be locked in position by means of thumbpieces 24, which'are pivoted to the headk 15. The inner edge of each dog 18 is preferably notched, as shown at 25, and these notches are 8 5 arranged at opposite sides of a tumbler 26, which is preferably wedge-shaped in form and is secured to a stem 27, which projects through the shank 1, and is provided with an operatingknob or thumb-piece 28. By means of this 90 knob the tumbler 26 can be moved into engagement with the notch 25 in either dog,- so as to throw said dog out of engagement with the teeth on the hub 20. Hub 20 has a rectangular aperture 29 therein, which is adapted to be 95 placed over the nut to be turned. One of the dogs 18 is then removed from engagement with the teeth 19 by swinging tumbler 26 thereagainst. Shank lis then oscillated backward and forward, so as to cause the other dog 18 to 100 alternately press and slip backward over said teeth, so as to rotate the hub and nut engaged thereby. Should the nut be too large or too small to permit the use of the hub 20, ring 23 is removed by iirst swinging the thumb-pieces or buttons 24 from position thereover. y The hub is then removed and another one placed in position, this second one having an opening 29 of suficient size to grip upon the nut to be turned. Ring 23 is then replaced andI locked in position. It will be understood that when it is desired to turn the nut in the opposite direction it is merely necessary to reverse the position of the tumbler 26, when the spring will return the released dog into engagement with the teeth 19, while the tumbler will remove the other dog from engagement therewith. As hereinbefore stated, when it is desired to adjust the jaw 11 upon a pipe or other cylindrical objects it is merely necessary to slide the same forward, so as to cause the pawls 11i to slip over the teeth 2. The toothed block 10 can be adjusted forward to adesired angle, so as to bind tightly upon the object to be turned.

It Vwill be understood that all of the parts of this tool can be readily inspected, detached, and replaced.

The tool is very convenient, durable, and compact and can be quickly adjusted to nuts or pipes of different sizes.

In the foregoing vdescription I have shown the preferred form of my invention; but I do not limit myself thereto, as I am aware that modications may be made therein Without departing from the spirit or sacrificing the advantages thereof, and I therefore reserve theright to make such 'changes and alterations as may suggest themselves from time to thereof and a notch in the opposite face; of a stationary jaw having a recess -in one side thereof for the reception of the end of the shank, a tongue within said recess adapted to engage the groove, a spring-catch within the head for engaging the notch, and a jaw adjustably mounted upon the shank.

2. In a device of the character described, the combination with a toothed shank having a transversely-extending groove in one face thereof, and a notch in the opposite face; of a stationary jaw khaving a recess in one side thereof for the reception of the shank, a tongue within the recess adapted to engage the groove, and a locking device within the head for automatically engaging the notch.

3. In a device of the character described, the combination with a toothed shank having a stationary jaw detachably connected to one end thereof, and means for automatically locking said jaw to the shank; of a jaw slidably mounted on the shank, spring-pressed pawls pivotcd to the sliding jaw and normally engaging the teeth on the shank,'a block pivotally mounted on the sliding jaw, and means for adjusting the block in relation to the jaw.

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

' WILLIAM J BERRYMAN.

REUBEN H. BAcrnsrAN, H. C. PRIvATT.

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