US1369784A - Wrench - Google Patents

Description

G. D. CHENETTE.

WRENCH.

APPLICATION FILED MAR. s, 1920. 1,369,784. Patented Mar, 1,1921.

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GENE D. CHENETTE, or AMES; rowAL V WRENCH.

Application filedMarch 8, 1920. Serial No. 363,923.

To all whomz't may concern:

Be it known that I, GENE D. C/HENETTE, a citizen of the United States of America,and resident of Ames, Story county, Iowa, have invented a new and useful Improvement'in Wrenches, of which the following is a specification.

The object of thisinvention is to provide wrench in which the sliding jaw moves in a plane transversely of the handle.

My invention consists in thG'COIlSlJlllCtlOIl,

arrangement and combination of elementshereinafter set forth, pointed out in my claims and illustrated by the accompanying drawing, in which- 7 r Figure 1 is a side view and Fig. 2 a view at right angles thereto of a monkeywrench embodying my improvements. Fig. 3 is a cross section on theindicated line 83 of.

Fig. 1. Fig. 4 is a cross section like unto Fig. 3 and showing a modified form of lock. Fig. 5 is a detailview similar to part of Fig. 2, showing a modified form of lock. Fig.6 is an end elevation of the jaw-operatingmeans. Figs. 7, 8, 9, 10, 11, 12,13fand 14 are detail views of different forms of manually actuated devices employed to move the'jaw-operating means.

In the construction of the device as illus trated in Figs. 1 to 14 inclusive, the numeral 20 designates a stem having a jaw 21 fixed to and extending transversely thereof at one end, the inner face of said jaw preferably being at right angles to the plane of the stem. A portion of the stem adjacent to the jaw-21 is rectangular in cross section and a aw 22, having angular integral straps or keepers 23, is slidingly mounted thereon and is formed with a threaded bore lying in aplane parallelwith the stem. The remainder of the stem is formed as a rod, cir'cular in cross-section and threaded at its" outer end. A ferrule 24 is slidingly mounted on the rod portion of thejste'm and abuts the rectangular portion thereof and also pro je'ct'slaterally therefrom and is formed with a-ltole registering-with the threaded bore of the sliding 1m. ,Ahandle 25, preferably made of wood, is slidingly mounted on the rod portion of the stem, is received at one Specification of Letters Patent. Patented Mar. 1, 1921. 2

end in the outer end portion of the ferrule 24 and also extends laterally from said stem and is formed with a bore registering with the lateral hole in the ferrule and the thread ed bore of the sliding jaw. 'A bar-washer 26 is mounted at. one end on the outer end portion of the rod portion of the stem 20 and a nut 27 is screwed on said rod portion and binds the ferrule 24, handle 25 and bar-washer firmly together. A shaft 28 is ournaled inthje lateral hole of the ferrule 1 24' and in the other hole of the bar-washer 26 and extends loosely through the lateral] bore of the hand1e 25 as shown bydotted lines in Fig, 1. Theshaft 2 8 is formed with a screw 29 on its inner 'end meshing with the screw of the threaded bore in the sliding jaw" 22. A ratchet wheel 30 is mounted rigidly on the shaft 28 adjacent the outer end. of the screw 29 and said ratchet wheel extends loosely and freely'within a notch 31 in the. rectangular portion of the stem. A spider wheel 32 is 'mounted'rigidly'on the outer end portion of the shaft 28 and a bushing 33 is interposed between said spider wheel and the bar-washer 26 for the purpose of spacing said spider fwheel from said bar washer into a plane parallel with that occupied by the nut 27. f A bell-crank dog 34 is fulcrumed on the ferrule-Q'24E' and one end portion thereof is adapted, at tunes, to engage" with the ratchet wheel 30' while the other end portion thereofextends across the back of the stem 20' adjacentto the inner end portion of said ferrule'and in spaced relation to said back. A leaf-spring 35 is mounted on the back of the stem 20 and is interposed between said back and the laterally-extending arm of thedog 34. It

is the function of thespring 85 to hold the dog in engagement with the ratchet wheel 30; and a 'latch- 36 is pivoted atone end on the ferrule 24 and is adapted to bejm'oved' through an arc'over and depress the laterall'y extending arm of thedog 34 at times, against the spring pressure, to release en'- gagement, of said dog J with said ratchet wheel; The latch'36 is formed with a flange 37 adapted to be engaged by a digitofthe operator for the purpose ofmoving said latch on its pivot. In practical use, the sliding jaw 22v may be moved ineither direction relative to the fixed jaw 21 by manual rotation of the spider wheel 32 when the dog 34 is released fromthe ratchet wheel 30. After the jaws 21, 22 are engaged with an object to be held or turned by the wrench, the sliding jaw may be set in such position by engagement of the dog 34 with the ratchet wheel 30, by release of the latch 36 from said dog. Thereafter the wrench may be manipulated with assurance that the jaws will maintain thedesired hold upon the object. The spider wheel 32 provides convenient means for operation of the shaft 28 and has increased leverage relative tothe milled wheel ordinarily employed in monkey wrenches. The handle 25 incloses adjacent portions of the stem 20 and shaft 28 and provides convenient means for grasping and manipulating the wrench.

In Fig. 4 the bell-crank dog 34, leafspring 35 and latch 36 are omitted and a chambered block 38 is mounted on one side of the stem 20. A dog 39 formed with a lateral head 40 is mounted for rotation anc reciprocation in the chambered block 38, and is spring held therein in the direction of engagement with the ratchet wheel 30. The

outer end portion of the block .38 is inclined and is adapted to be engaged by the head 40. When it is desired to release the dog 39 from engagement with the ratchet wheel 30, the head 40 is turned manually and, riding on the inclinedencl of the block 38, said head moves outwardly and withdraws the dog from the wheel against the spring pressure,

said head being placed in a position transversely with the back of the stem 20 where it remains until manually removed. In Fig. 5 a latch 41 is substituted for the latch 36 and is slidingly mounted on the back of theferrule 24 by means of screws 42 seated in said ferrule and extending through a longitudinal slot 45 in the latch. The latch 41 1s formed with an outstanding lug 44 on one end adapted for manipulation of the latch and the opposite end portion of said latch is adapted to engage with, depress and hold the lateralarm of the dog 34 at times for the purpose ofv releasing said dog from engagement with the ratchet wheel 30.

In Figs. 7 and 10 the spider wheel 32 is omitted and the shaft 28 is formed with a lateral hole in its outer end portion. An operating pin or handle 46 is mounted rigidly. in, and extends transversely at both ends from the hole in the shaft 28, thus providing convenient means for manipulation of said shaft.

In Figs. 8 and 11 a pin or handle 47 is substituted for the pin or handle 46, is loosely mounted in the hole in the shaft'28 and is formed with a ball 48 on each end to prevent accidental removal of the pin from the hole. This device provides convenient means for manipulation of the shaft 28 and is susceptible of an adjustment of leverage through extension of the pin 47 relative to the shaft in either direction.

In Figs. 9 and 12 a hexagonal nut 49 is substituted for the operative devices and may be formed on or rigidly secured to the outer end portion of the shaft 28 and have no movement independent of said shaft. It is the function of the nut or bolt-head 49 to be manipulated or operated by another wrench or pliers for the purpose of rotating the shaft 28 in either direction.

In Figs. 13, 14 a further construction is illustrated adapted to be substituted for the devices previously described for rotation of the shaft 28. In this instance bar- washers 50, 51 are mounted on and extend laterally from the outer end portion of the shaft 28 and are secured thereto by a rivet 52 extend ing through holes in their inner ends and through the pin-hole in theshaft'. A lever handle 53, formed with a head having a flat end and three flat faces, is mounted with the head extending between the outer end portions, of the bar washers 50, 51 and secured thereto by a pivot 54. A leaf spring 55 is mounted on the shaft 28 and extends between said shaft and the head of the lei' er-handle 53 in the space between the bar-washers- It is the function of the leaf-spring 55 to engage the flat end of the head of the leverhandle 53 and hold said handle in extended position as shown by solid lines in Figs. 13, 14, or, to engage one fiat face of said handle and hold the same in folded position as shown by dotted lines in Fig. 13. When the handle 53 is in extended position, it pro vides convenient means for rotating the shaft 28 in either direction.

I claim as my invention- 1. In a wrench having a stem, 'a jaw fixed to said stem and an opposing jaw slidingly' mounted on said stem, the combination with said sliding j aw'of a shaft journaled on, extending beyond the outer end of and arranged parallel with said stem, a screw on mounted on said stem, the combination with said sliding jaw of a shaft journaled on and arranged parallel with said stennascrew on' sald shaft acting onsald 'slidmg jaw and] manually actuated means mounted on the outerend of said shaftand adapted to rotate the shaft and screw, together with a ratchet wheel on said shaft, afgdog' carriedbytlie stem and adapted to engage said ratchet wheel and a latch carried by the stem and adapted to engage said dog at times.

3. A wrench comprising a stem, a jaw fixed thereto, an opposing jaw slidingly mounted on said stem and formed with. a threaded bore, a ferrule mounted on said stem and projectinglaterally therefrom, a handle mounted on said stem, projecting laterally therefrom and engaging the ferrule at one end, a-washer mounted on said stem and projecting laterally therefrom and engaging the opposite end of said handle,

means for securin the stem, ferrule, handle and washer toget er, the laterally-project-- ing portions of the ferrule, handle and washer being formed with registering openings, a shaft mounted for rotation in said registering openings, a screw on said shaft engaging said threaded bore, means for rotating said shaft, a ratchet wheel mounted on said shaft'adjacen't to said ferrule, a dog pivoted on said ferrule and adapted to engage said ratchet wheel at times, and a latch mounted on said ferrule and adapted to engage said dog at times. I

4. In a monkey wrench havingla stem, a jaw slidingly mounted on said stem, a ferrule on the stem and a screw journaled in the ferrule and acting on the sliding jaw, the combination with said screw of a ratchet wheel mounted rigidly thereon, a bell-crank dog fulcrumed on the ferrule, one arm of the dog being adapted to engage said ratchet wheel, the other arm of the dog extending across the stem, anda latch mounted on the ferrule and adaptedto-engage and hold the dog out of engagement with the ratchet wheel.

5. In a monkey wrench having astem, a jaw slidingly mounted on said stem, a ferrule on the stem and a screw journaled'on the ferrule and acting on the sliding .j aw,the combination with said screw of a ratchet wheel mounted rigidly thereon, a bell-crank wheel, the other arm of the dog extending across the stem, a leaf spring mounted on the stem' and extending between said stem and the latter arm of the dog, said spring being adapted to hold said dog in engagement with said ratchet wheel, and a latchdog fulcrumed on the ferrule, one arm of the dog being adapted to engage said ratchet being adapted to engage said ratchet wheel,

the other arm of the dog extending across the stem, a spring engaging the dog and adapted to hold it in engagement with said ratchet wheel, and a latch mounted on the ferrule and adapted to engage and hold the dog out of engagement 7 with the ratchet wheel against thepressure of sa d spring.

Signed at Des Moines, in the county of Polk and State of Iowa, this 28th day of February, 1920. j

' GENED. CHENETTE.

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