US2469789A - Slidable jaw wrench with terminal adjusting nut - Google Patents

Description

J. RUzEK 2,469,789 SLIDABLEJAW WRENCH WITH TERMINAL. ADJUs'TING NUTv Mayo, 1949 Filed may 12. 1947.

IN VEN TOR. Jo aspx-r Ruzzx Patented May 10, 1949 SLIDABLE JAW WRENCH WITH TERMINAL ADJUSTING NUT Joseph Ruzek, New Orleans, La. Application May l2, 1947, Serial No. 747,521

(Cl. 81-16S) 1 Claim.

The present invention refers to a universal wrench and relates more particularly to a tool of the type adapted for hand use and to apply pressure to a work piece from diametrically opposite directions.

An object of the present invention is to provide a tool of the type described having interchangeable working faces, so that the same handle and adjusting mechanism may be used in connection with different types of work engaging instruments such as wrench jaws, pipe cutters, punch and sleeve sets, gasket hole cutters, pipe vises, tap adaptors and solid die sets.

An object of the present invention is to provide an unusually sturdy wrench of the type described.

A further object ofthe invention is to provide such a wrench comprising means for fixing the same in a vise.

Another object is the provision of a head for such wrench provided with means for connecting an auxiliary handle diametrically opposite from the handle of the wrench.

Still another object is the provision of novel means for providing easy tightening of the adjusting means for the working faces in spite of the great pressures against such faces encountered in this type of tool.

In accomplishing the objects of the present invention, the wrench is provided with a massive head and formed with a substantially rectangular recess on one side thereof and comprising an elongated tubular handle. Formed in the head and extending longitudinally thereof along the border of the recess is a substantially T- shaped recess communicating therewith at its lower end. Extending along the side of the head opposite to the recess is a lip for fastening the head in a vise. The portion of the head extending above the recess has a threaded recess formed therein and extending downward from its upper surface and adapted to receive a threaded pipe as an auxiliary handle.

Concentrically with said threaded recess and extending upward from the lower surface of said upper portion is a square recess for receiving the lug of the upper replaceable tool. Slidably mounted in the head of the wrench and extending into the handle thereof is a ram having a square upper portion and a threaded lower portion. Telescopically received within the handle is a tubular nut of cylindrical outer shape and internally threaded to engage the lower end of the ram. The nut has a handle extending outwardly of the wrench handle and therebelow. Complementary surfaces of the wrench handle and nut are formed as ball bearing races and the wrench handle is formed with a hole connecting with the ball bearing races, for the introduction of the ball bearings into the races after the nut and wrench handle are telescopically engaged. The ball bearing entry hole is threaded and closed by an Allen head screw. The ball bearings thus serve as thrust bearings preventing the friction of the thrust developed in the operation of the wrench from interfering with the application of further thrust to the work piece by turning of 'the nut in threaded engagement with the ram.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claim in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. l is a side elevational view, partly insection, of a device embodying the present in,- vention.

Fig. 2 is an enlarged fragmentary sectional view thereof on the line 2-2 of Fig. 3.

Fig. 3 is a top eievational view of the device.

Fig. 4 is a section on the line 4-4 of Fig. 2.

Fig. 5 is a section on the line 5--5 of Fig. 2.

Fig. 6 is a side elevation of an upper tool face for use with the invention.

Fig. '7 is a plan view thereof.

Fig. 8 is a side elevation of a lower tool face for use with the invention.

Fig. 9 is a top plan view thereof.

Fig. lo is a section on the line IG-Iil of Fig. l.

Referring now in detail to the drawing, the improved universal wrench 2i?. comprises a massive, substantially oblong head 2i and the tubular handle 22 connected therewith, and preferably integral therewith. The head 2| is formed with a longitudinally extending substantially rectangular recess 23. Extending along the side of said recess and parallel therewith and in communication therewith is a recess 24 of substantially T-shaped cross section. Recess 24 is formed in the elongated back portion 2E of head '2l and is partially definedV by the wing portions 2S extending from the top thereof alrnost to the bottom thereof, terminating So as to leave a channel Z1 of substantially square cross section in communication with the recess 23. EL tending rearwardly of the back portion 25 of head 2l is the fin or lic portion 2t extending longitudinally of the head portion. Lip portion 28, as best seen in Figs. 3, 4 and 5, is substantially rectangular in shape,integral with back portion 25, and well adapted as a purchase member for fixing wrench 23 in a vise. The upper portion 29 of head 2i is that portion extending above recess 23 and is formed with a recess 33 extending downward from its upper surface, and formed with threads 3l for engagement with a threaded pipe adapted to serve as an auxili9 handle extending diametrically Oppositely fr handle 22 of wrench 23. Extending upwardiy from the lower surface of upper portion 23 is the recess 32 of square cross section.

A bore 33 extends through the base portion 35 of wrench head 2l and likewise through handle 22. Bore 33 is enlarged as at 35 for the reception of a square guide tube 35. Guide tube 33 is removable, and is kept in place by the Allen head screw 31.

The ram 38 has an upper portion 39 as square cross Section, provided at its upper end with a spring ball snap lili. Ram 33 further has a lower threaded portion 4l, the portions 33 and 4I extending each approximately for half the length of ram 35. Telescopically engaged in bore 33 is the tubular nut d2, internally threaded to engage portion di of ram 38. Nut 42 is rotatable in bore 33, and has a knurled handle portion t3 extending longitudinally beyond handle 52 and formed with the transverse hole 54 for the entry of a pin to apply turning force thereto.

Nut 42 is mounted slidingly in bore 33, but is prevented from sliding therein by the following construction. Intermediate its length, the outer surface 45 of nut 42 is formed with the ball bearing race de. Bore 33 is correspondingly formed with the ball bearing race di. Ball bearings i8 are introduced into the races i3 and 37 through an opening G9 extending radially of handle 22 and of the reinforcing band 55 surrounding handle 22 longitudinally coincident with the ball bearing races 46 and Kil. The ball bearing entry port 49 is threaded and is closed by the Allen head screw An upper detachable tool member 52, shown in Figs. 6 and 7, has a body 53 formed with wrench teeth 55 such as are found in pipe wrenches. It is understood that the operative surface of tool 52 might be any number of work forming surfaces, such as pipe cutters, gasket cutters, and so forth.

The substantially rectangular body 53 of upper detachable 'tool member 52 is formed with the substantially cubical stud 55 extending upwardly therefrom, and provided on one surface thereof with a ball snap 55 actuated outward by the spring 5l and peened into place. Stud 55 is adapted to engage the substantially square recess 32 of upper portion 29 of wrench head 2i, and to be detachable therefrom. Tool 52 is resiliently retained in operative relation to upper portion 23 by engagement of ball snap 56 in the recess 53a corresponding thereto and formed in the square recess 32 in upper portion 29. The lower detachable tool member 58 has a substantially rectangular body 55 provided on its upper surface with wrench teeth 65 conventionally found on pipe wrenches. It is understood that such wrench teeth are adapted to cooperate with wrench teeth 54 to make of the universal wrench 2G a pipe wrench. It is further understood that various modifications of the replaceable lower tool 53 may be provided in order to make of the universal wrench 20 an apparatus for cutting pipe, and other purposes enumerated above. Extending upward of the lower surface of body 53 of the lower 4 replaceable tool 58 is the substantially square recess 5l. Extending rearwardly from body 59 is the substantially T-shaped flange 52.

In order to insert the detachable tools in the universal wrench, upper tool 53 is snapped into place by inserting the stud 55 into the recess 32, whereupon ball snap 55 engages its recess 58a to be resiliently retained in place. Lower tool is engaged in wrench 2li by inserting flange 32 into passage 2l, and turning nut handle 153, advancing ram 33 upward. The square upper portion 33 now enters the recess 5l, and the ball snap 40 engages the corresponding recess 33 of lower tool 58. Upon further turning of nut handle 43, the entire lower tool 58 is caused to travel upward and the T-shaped ange 52 engages the channel 24, also T-shaped, to lock lower tool 58 against any sidewise motion.

Once the upper and lower tools engage a, work piece between them, thrust is developed by further turning of the nut handle 43. In such instance, the anti-friction mounting of nut 42 in bore 33 is eiective to furnish comparatively easy turning of nut t3 for developing further thrust in the best possible manner.

A further advantage of the ball bearing construction for the absorption of thrust developed in the normal operation of the wrench is that, by loosening of Allen head screw 5I, the ball bearings @118 may be removed and the nut '32 taken out for repair and inspection.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modications coming within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent, is:

A combination including a wrench and detachable tool faces therefor comprising, a substantially U-shaped head dening upper and lower opposed taces and a back face perpendicularly disposed between the inner ends thereof, an elongated tubular handle depending integrally from the lower face and opening therethrough, a relatively short guide tube secured in said tubular handle adjacent said lower face, an elongated ram disposed within said guide tube and movable inwardly and outwardly of said lower face, a portion of said rain being provided with screw threads thereabout, an elongated tubular nut rotatably carried within said handle and threadedly engaged about said ram, a `ball bearing race formed between said nut and said enclosing handle, a knurled handle formed on said tubular nut and disposed beyond the lower extremlty of said tubular handle, an elongated channel of T-shaped cross sectional conguration formed longitudinally of the back face of said wrench head, a square channel opening into said T-shaped channel through said back face adjacent tl'ie lower face, a substantiaily square socket formed upwardly into the upper face of said head, there being a ball receiving recess formed in the wall of said socket, a substantially rectangular tool piece provided with a working face along one side thereof, a square stud projecting from the piece opposite said working face, a snap ball lock on the upper end of the said ram, an elongated tooi piece provided with a working surface formed along one side thereof, a T-shaped extension formed on one end of said last named 5 tool piece being inserted through the square channel in the back face of said head and slidably engaged in the T-shaped channel therein, a socket formed in said face of said last named tool piece opposite the Working surface thereof and provided internally with a. recess complementary with the ram snap lock, a threaded auxiliary handle socket formed downwardly from above the upper face of said wrench head, and a rectangular projection formed longitudinally of the back edge of said head providing a purchase member to be secured in a vise.

JOSEPH RUZEK REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Number Name Date Hewet Aug. 24, 1839 Rose Sept. 11, 1883 Brockett Jan. 26, 1897 Vanderman Sept. 26, 1899 Wirl Jan. 29, 1901 Keil Feb. 16, 1909 Cramer' Feb. 6, 1917 Nonneman Apr. 16, 1918 FOREIGN PATENTS Country Date France June 19, 1906

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