US1088716A

US1088716A - Wrench.

Info

Publication number: US1088716A
Application number: US78511113A
Authority: US
Inventors: John E Monaghan
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-08-16
Filing date: 1913-08-16
Publication date: 1914-03-03
Anticipated expiration: 1931-03-03

Description

J. E. MONAGHAN.

' WRENCH.

APPLICATION FILED AUG. 16, 1913.

1,088,716. Patented Mar. 3, 1914.

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J. E. MONAGHAN.

WRENCH.

APPLICATION FILED AUG. 16, 1913.

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(invents 0 JEMon/AGHAN Wikmcooco I UNITED STATES PATENT orFioE.

JOHN E. MON'AGHAN, 0F FORT MORGAN, COLORADO.

WRENCH.

To all whom it may concern:

Be it known that I, JOHN E. MONAGI-IAN, a citizen of the United States, residing at Fort Morgan, in the county of Morgan and State of Colorado, have invented certain new and useful Improvements in renches, of which the following is a specification, ref erence being had to the accompanying drawin s.

This invention relates to wrenches and it more particularly relates to an improved form of adjustable ratchet wrench.

One of the objects of this invention is to provide an improved wrench whereby bolts and nuts of different sizes may be engaged and manipulated in places and positions in which other wrenches are not available.

Another object is to provide a wrench of this character which may have its parts locked rigidly together so that it may be used as an ordinary solid wrench.

Another object is to provide a Wrench of this character which may be quickly and easily adjusted to fit different sized boltheads and nuts, and which, when adjusted, positively remains in adjusted position until it is readjusted.

Another object is to provide an adjustable ratchet wrench of this character which is simple of construction, comparatively inexpensive, strong, durable, and thoroughly practical, efficient and effective.

In the accompanying drawings which suppleme'nt this specification, Figure 1 is a plan view of the wrench, a portion of the handle being removed; Fig. 2 is a longitudinal sectional View; Fig. 3 is a View similar to Fig. 1, except that the clamping jaws are removed, and certain other elements are in different positions; Fig. 4: is a sectional view on the line 4:1 of Fig. 1; Fig. 5 is a plan view of the major jaw member; Fig. 6 is a sectional view on the line 6-6 of Fig. 5; Fig. 7 is a view taken at right angles to Fig. 5; Fig. 8 is an end elevation of the major jaw member; Fig. 9 is a sectional view through the wrench-head, on the line 9-9 of Fig. 2; Fig. 10 is a sectional view through the minor or slidable jaw member; Fig. 11 is an elevation of the minor jaw member; Fig. 12 is a front elevation view of the minor jaw member, or a view taken at right angles to Figs. 10 and 11; and Fig. 13 is a fragmentary sectional view showing certain of the parts, as disclosed in Fig. 2, adjusted to a different position.

Specification of Letters Patent.

Application filed August 16, 1913.

Patented Mar. 3, 1914;.

Serial No. 785,111.

Referring to these drawings in which s m lar reference characters correspond to similar parts throughout the several views, the device comprises a main body member 15. a major jaw member 16, a minor jaw member 17, a locking bolt 18 and a cam-ring or bolt-actuating member 19. The main body member 15 comprises a handle 15 and a bifurcated head member, the furcations 15" of which are of segmental or semi-crescent configuration. In other words, the bifurcated head member is crescent-shaped, and the handle 15 unites with the head at the medial portion thereof. This crescentshaped head is provided on its inner surface with notched ribs 15 with their inner extremities in close proximity one to the other and with oppositely disposed rabbets 15 on opposite sides of the notched ribs. At the junction of the head and handle elements is provided a groove 15" which communicates with the space between the contiguous ends of the ribs 15 and also communicates with a peripheral groove 15 formed in the handle. One of the semi-crescent furcations is provided with an aperture 15, for a purpose hereinafter explained. The end of the recess or groove 15 extends across the head and in the longitudinal direction of the handle, so as to receive the hooked end portion 18' of the member 18 and secure it in slidable engagement with the handle. The member 18 is provided with a recess or notch 18 in which the cam elements 19' and 19 are adapted to slide so as to contact with the shoulders at the ends of the recess 18 for moving the member 18 in the longitudinal direction of the handle and in and out between the contiguous ends of the notched ribs 15 and to engage with a notch 16 of the major jaw member. This major jaw member is of circular formation and extends through an arc of approximately 275 degrees being provided with opposite and spaced flanges 16, each of which is separated in the opposite extremities of a chordal plane therethrough so as to provide notches which communicate with grooves 16*, the sides and bottoms of which constitute a guide or track in which the minor jaw member is adapted to slide, said minor jaw memher being provided with a pair of spaced, parallel and screw threaded bars 17 which are adapted to fit snugly within the grooves 16" and be moved longitudinally therein by means of a screw 20. This screw is seated in.

an aperture 16 which extends through the major. jaw member 16 and communicates with the opposite grooves 16". The bottoms of the grooves 16 are provided with convexed ribs or bosses 16 for the purpose of thickening the member 16 sufliciently at this point for the provision of an aperture or bore 16 this-aperture registering with an aperture 20 extending axially through the screw 20. Through these registering apertures extends a pivot or axle 21, provided with a socketed head, the socket 21 of which is non-cylindrical so as to receive the noncylindrical end of a shaft 22, the latter being axially alined with the pivot 21 and adapted foractuating the latter and oo-acting therewith for rotating the screw 20. A. handle 23 comprising a knurled head and a shank extending therefrom, is pivotally connected at 24 to the member 22 A recessed keeper 25 is formed onthe outersurface of one of the furcations 15 and this keeper is provided with a recess into which extends an enlargement 22 which isformed on the shaft 22 andconstitut'es a stop, for preventing undue longitudinal movement of the shaft 22. j The mouth of the aperture 25 has a radially slotted bushing or stop member 22 threaded therein, and the slot thereof communicates with a slot 25 of the lug 25, so that the shank may be disposed in these slots, when the wrench is in use, so as to prevent breaking or bending the shank. v

The member 16 is provided with a bar 16 lying at right angles to the nut-engaging surface 16 and this bar is seated and adapted to slide in a recess 17 formed between the side elements 17 which combine with the elements 17" to form a bifurcated lateral extension of the jaw element 17", the elements 17 extending at right angles to the nut-engaging surface of the element 17 This latter element is provided with a recess 17 C in which the arcuate guide or tongue 16 is seated when the wrench is in its wide open position, while the parallel peripheral flanges 17 and the parallel flanges 16 em-- brace the alternately toothed and notched ribs 15 and have sliding engagement therewith, so that the

members

16 and 17 may.

rotate freely between the furcations 15 The member 16 is provided with opposo as to limit the outward movement of the p'awland prevent its disengagement from the pawl seat when the

members

16 and 17 are rotated into such position that the pawl is exposed between the free ends of the furcations 15. V

In operation, the user of the tool first adjusts the jaws against the opposite side of the nut or bolt-head, while the parallel faces of the jaws are in registry with the free ends of the furcations 15 by rotating the handle 23, while the shaft 22 is seated in the socket 21, thereby rotating the screw 20 and moving the jaw member 17 with reference to the member 16. The jaw being properly adjusted the handle 23 is pulled outward, so as to disengage the

members

21 and 22, the member 18' is withdrawnfrom the notch 16, by rotating the member 19 so 1 that the cam surfaces of the latter impinge 1 upon the contiguous shoulders of theloclt j ing bolt 18 and drawit out of engagement with the member 16. It will be seenzthat the jaw members are free to rotate in one directlon, but are held against rotation in the opposite dlrectlon by means of the ratchets 26. When it is desired to employ the wrench as a solid wrench, the member 16 is locked in fixed relation with the member 15b5 means of said locking bolt 18 and said locking cam 19.

From the foregoing it will be seen that 4' I have provided a wrench of this character which is fully capable of attaining the desired and specified objects in a thoroughly practical and effective manner.

lVhile the accompanying drawings illustrate what I believe to be the preferred embodiment of my invention, it is to be understood that the invention is not limited thereto, but that various changes may be made in the construction, arrangement and proportions of the parts without departing from the scope of the invention as defined in the appended claims.

What I claim is l. A device of the character described relatively to the remainder, an endwise movable member mounted for movement longitudinally of the handle and capable of engagement with one of the jaws whereby the jaws are held against rotary movement, said member being provided with a recess aflording spaced shoulders, and a sleeve embracing the handle and capable of rotation therearound and extending through the recess, the opposite margins of such sleeve being provided with cams coacting with the shoulders of the member whereby the same may be moved into or out of engagement with the jaw upon rotation of the sleeve.

2. A device of the character described including ahead provided with a handle, jaws rotatably supported by the'head, a retary adjusting element carried by one of the jaws engageable with a second jaw, said rotary element being provided with a socket, a shaft capable of endwise and axial movements mounted in the head and adapted to be engaged within the socket of the adjusting element, and an operating member for such shaft pivotally engaged therewith and projecting exteriorly of the head, such op- 10 erating member serving as a stop to prevent movement of the shaft relative to the adjustin element when such shaft is moved out of engagement with the socket of such adjusting element.

In testimony whereof I hereunto affix my 15 signature in the i'esence of two witnesses.

J HN E. MONAGHAN. WVitnesses:

ERNEST E. GALKINs, HARRY SIMMs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentn. Washington, D. G.