US1641989A - Wrench - Google Patents

Description

J. J. PAULE WRENCH- Filed DeC.l6. 1925 mmm Quorum;

Patented Sept.. 13, 1927.

k UNirE-osrarns JULIUS J. PAULE, 0F NORTH BALTMORE, OHIO.

WRENCH.

Application filed December 16, 1925. Serial No. 75,727.

This invention relates to new and useful improvements in pipe wrenches and has for its principal object vto provide a tool of this character which may be quickly adjusted to the desired size and with the minimum effort on the part of the operator.

Vit-h the foregoing and otherV objects in view that will readily appear as the nature of my invention is better understood, the

same consists in the novel features of construction, combination and arrangement of parts illustrated in the accompanying drawings and more particularly pointed out in the appended claim.

In the accompanying drawings, which are for illustrative purposes only and are therefore not drawn to scale: f

Figure 1 is a side elevation ofan adjustable pipe wrench embodying my improve ments.

Figure 2 is a longitudinal section.

Figure 3 is a vertical transverse section, and v Figure 4 is a detail perspective view of the front end of the handle and stationary jaw. 4

Referring to the drawings for a more particular description of my invention and in which drawingslike parts are designated by like reference characters throughout the several views, the numeral 1 designates the handle of the wrench, provided at its inner or forward end with a stationary jaw 2 formed on its outer end or edge with the downwardly inclined teeth 3. Y

c The numeral 4; represents the movable member of the wrench, consisting lof the straight elongated shank 5 provided at its forward end with themovable jaw 6 formed on its inner edge or wall with the upwardly inclined teeth 7. The handle 1 of the wrench and shank 5 of the movable member 41 are held together by the yoke 8, and the I latter formed at the top with spaced lugs 9 between which is mounted by means of the horizontal bearing pin 10, the wormy 11, whose teeth are adapted to mesh with the rack teeth 12 formed on the upper edge of said movable member t. f rlhe yoke isheld 5 in operative position by the cross pin 13 carried by the handle 2 with its endsl extending into vertical elongated slots 141 formed in opposite sides 15 of the yoke. The yoke is normally held in lowered position and the worm 11 in engaged relation with the rack 12 by the resilient elements 16 mounted on the bearing 17, but` said yoke may be elevated to release the worm from the rack by grasping the wrench in one hand A and pressing against the bottom of the yoke with the thumb. An approximate adjustment of the movable jaw may then be easily and quickly made and the worm used for finer adjustments when the pressure on the yoke is released.v i

.The front end of the handle 1 is provided with a central longitudinal slot or recess 18 and the stationary jaw 3 formed with three longitudinal parallel transversely spaced tongues 19 and 20. Then the stationary jaw 1s in place, the central tongue 19 fits in the slot or recess 18 of the handle and the outer tongues 20 embrace or fit against opposite side faces of the front end of the handle .and co-operate with the transverse ribs 21 1n guiding and preventing any lost motion of the yoke 8. The stationary jaw 3 is secured or fastened to the front end of the handle by the transverse pins or rivets 22.

My device is simple and economical in construction and highly efficient and practical in operation.

From the foregoing description taken in connection with the drawings, it is thought that the construction, operation and advantages of my invention will be readily understood withoutrequiring a more extended eX- planation.

Various changes in the form, proportions and minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of my invention as defined in 'the appended claim.

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

1n an adjustable pipe wrench, a handle provided at one end with a'stationary jaw, a movable member comprising a straight elongated shank and a jaw co-operating with said stationary jaw, there being oppositely inclined teeth formed on said jaws, a transversely movable yoke fitting over lthe handle and shank of the movable member, there being a rack formed on the 'upper edge of said shank, a worm carried bythe yoke and co-operating with the'rack in adjusting the movable jun', Ieelien: ineens 'For normally mi@ tongues er ribs (3o-operating with the holding the yoke in operative pnsnn :and pin :1nd slot eonneci'ien in guiding and prethe worm in engeibjenwnt wh the meh, a wnlnv of-t motion 0i the yoke. 10 pin and slot connection beiween the Nok und 'lu teetnneny whereof he :LHxes his signu- I handle and transverse tongues or lbsis nfelure.

vided on the Siutenrn-y jen' und umde :1nd engaging opposite eide edges of fhe yoke, JULIUS J. BAULE.

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