US1113903A

US1113903A - Wrench.

Info

Publication number: US1113903A
Application number: US84070614A
Authority: US
Inventors: Leopold Leer
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-05-25
Filing date: 1914-05-25
Publication date: 1914-10-13
Anticipated expiration: 1931-10-13

Description

L. LEER. WRENCH. APPLICATION FILED MAY 25, 1914.

1,1 13,903. Patented Oct. 13, 1914.

l jl l l l n Mull THE NORRIS PETERS CO. PHOTO-LITHQ. WASHINGTON. D,

LEoroLn Lesa, or NEW YO K, n. Y.

W MJ

To all whom it may concern Be it known that I, LEOPOLD LEE-R, a citizen of the United-States, residing at the borough of Bronx, in the county bf Bronx and State of New York, have invented an Improvement in Wrenches, of which the following is a specification. y

My invention relates to adjustable wrenches, and itsobject is to provide a tool of a character applicable to all purposes for which such devices are employed, particularly useful in close quarters that cannot be reached'by the ordinary wrenches, andalso to lessen its cost and bulk or size.

The details of construction are ter particularly described.

In the accompanying drawingzFigure '1 hereinafis a front elevation of the preferred form of my invention. Fig. 2is a side view of the same. Fig. 3 is a rear view of the same. Fig. 4 is a view similar to Fig. 2, withthe auxiliary or interchangeable jaws removed. Fig. 5 is a section on the broken lines, w, of Fig. 2. Fig. 6 is a section on the broken line y, of Fig. 4. Fig. 7 is a front elevation showing a modification with the handle broken away. Fig. 8 is a side View of the same, and Fig. 9 is a view similar to Fig. 8, but showing the f auxiliary jaws attached. In Fig. 1, the broken lines show the jaws fully extended and grasping I a hexagonal nut. I

Similar reference characters indicate like parts throughout the several views f The stock and handle of my improved wrench are formed of one pieceofmetal. The elongated portion 10 is the handle. This has a right angle bend 11, astraight portion 12 parallel with the handle portion and having a right angle bend 18 at its top. The bent portions 11 and 13 are thusspaced apart opposite each other. Each of these parts 11 and 13 are provided with an opening in alinement with each other, inwhich is journaled a screw 14, that portion of which coming between the parts 11 and 13 is provided on one half with a right handed screw thread and on the other half with a left handed screw thread. On each end of the screw 14 there is a knurled head 15. The straight portion 12 of the stock is provided with a longitudinal slot 16. y

In the preferred form of my invention, 17, 17, indicate two adjustable jaws, the shanks 18 of which pass through and are slidable in the slot 16 of the part 12, each Specification of Iietters Patent. Aspiration filed May 25, 1914'. Serial No. 840,706.

Patented. Oct. 13, 1914.

of the shanks 18 being provided it with a screw threaded hole to fit the threads on the screw 14:. The jaws 17 thushave a simultaneous movement toward or away from eachother, accordin tokthe manipulation of. the knurled heads 15. The gripping partsof the jaws are preferably made triangular so as to fit nuts of different shapes.

19, =19, designate two auxiliary jaws, which are preferably somewhat larger than the jaws 17. These auxiliary jaws are pro vided with angular gripping surfaces, and are attachedto the rear ends of the shanks 18 of thejaws 17, by. screws 20; there being screwthreaded recesses21 on the ends of the shanks 18 for this purpose. These auxiliary, jaws are therefore interchangeable; one set may be removed" and another set of different size or shape substitutethand they are easily replaced if either or both jawsbecome worn orinjured in use. here the wrench is required for use in very close quarters, these auxiliaryjaws may be detached fromthewrench, as shown in Fig. 4c.

In the modified forms shown in Figs. 7

'8 and 9, the stock and handle are made in one; piece with the same bends shown in the other figures; but in this case there is only one adjustable jaw 17 and one sliding auxiliary jaw 19. In such case, the upper right angle bent portion- 13 is made thicker to forman upper fixed jaw 22, with a gripping surface corresponding with that of the lower adjustable jaw, the upper auxiliary jaw 19 being removably secured to the upper end of the straight portion 12 by a screw or screws, in line the knurled headsisrequired on the screw 14.. Theu per end of the screw having a smooth surface and journaled in an opening 2 L in the part 18 in which it may be supported by a head 25, suitably secured to said end, there.

being a countersunk part surrounding said opening 24 to receive said head.

It is customary, especially for drivers of motor vehicles, to carry a number of wrenches for use on nuts of different sizes and shapes, and it will be readily seen that by the employment of my improved wrench, this necessity will be greatly, if not entirely,

overcome. 1

I claim as my invention:

1. An adjustable wrench having a stock consisting of a straight portion with a right-angled bend at each end thereof opwithfthe fixed jaw 22. In this construction, only one of straigh portion double screw-threaded shanks extended into pro ecting oppositely disposed,

positely disposed, and an integral handle from one of said bends parallel with said straight portion of the stock, a screw threaded shaft supported between and by said right-angled bends, and oppositely disposed jaws adapted to be either brought togetheror separated by means of said screw threaded shaft.

2. In an adjustable and handle formed of a single piece of metal, said stock having a straight portion and a right-angled bend at each endthereof the handle portion projecting at right angles to one of said bends and parallel with said straight portion, the combination of a screw threaded shaft journaled in openings in said oppositely disposed bends, and oppositely disposed jaws having angular gripping surfaces.

3. In an adjustable wrench, the combination of a stock and handle formed of a single piece of metal, said stock having a provided with a longitudinal slot and a right angled bend at each k end oppositely disposed, the handle portion projecting at right angles to one of said bends parallel with said straight portion, a shaft journaled in openings in said oppositely disposed bends, two jaws having oppositely threaded holes through which. said screw threaded shaft passes, said jaws being provided with integral said longitudinal slot in the stock and slidable therein whereby said jaws are held in line as they are moved.

4. In an adjustable wrench, the combination of a stock and handle formed of a single piece of metal, said stock having a straight portion provided with a longitudinal slot and, a right angled bend at each end oppositely disposed, the handle portion projecting at right angles to one'of said bends parallel with said straight portion, a double screw threaded shaft journaled in openings in said oppositely disposed bends, two jaws provided with angular gripping surfaces and having oppositely threaded holes through which said screw threaded wrench having a stock shaft passes, said jaws being provided with integral shanks extended into said longitudinal slot in the stock and slidable therein whereby said jaws are held in line as they are moved.

5. In an adjustable wrench, the combination of a stock and handle formed of a single piece of metal, said stock having a straight portion provided with a longitudinal slot and a right angled bend at each end oppositely disposed, the handle portion projecting at right angles to one of said bends parallel with said straight portion, a double screw threaded shaft journaled in openings in said oppositely disposed bends, two jaws having oppositely threaded holes through which said screw threaded shaft passes, said jaws being provided with integral shanks extended into said longitudinal slot in the stock and slidable therein, whereby said jaws are held in line as they are moved, and auxiliary jaws detachably secured to the ends of said shanks.

6. In an adjustable wrench, the combination of a stock and handle formed of a single piece of metal, said stock having a straight portion provided with a longitudinal slot and a right angled bend at each end oppositely disposed, the handle portion projecting at right angles to one of said bends parallel with said straight portion, a double screw threaded shaft journaled in openings in said oppositely disposed bends, two jaws provided with angular gripping surfaces and having oppositely threaded holes through which said screw threaded shaft passes, said jaws being provided with 1ntegral shanks extended into said longitudinal slot in the stock and slidable therein, whereby said jaws are held in line as they are moved, and auxiliary jaws having angular gripping'surfaces detachably secured to the ends of said shanks.

Signed by me this 18th day of May, 1914.

LEOPOLD LEER.

Witnesses BERTHA M. ALLEN, J. 13. LE BLANO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents,

' Washington, D. G.