US1204983A - Wrench. - Google Patents

Description

1. n. HUNT.

WRENCH.

A APPLlcATmN man 050.3. |912.

' m. l Patented Nov. 14,1916.

JOHN R. HUNT, OF MOULTDN, IOWA.

WRENCH. l

Specification of Letterslatent.

Patented Nov. 14, 19716.

Application ledDecember 3, 1912. SerialNo.l 734,748.

To all fwwmz' may concern Bev it known thatI, JOHN 'RjI-IUNT, a citizen of the United States, residing at Moulton, in the county of Appanoose, State of Iowa, have invented certain new and useful Improvements in Wrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. Y

This invention is directed to` improvements in wrenches,and has for its object to provide a ratchet wrench which is reversible.

A further object of the invention is to so construct a device that the pawls used in connection therewith may be easily and quickly removed from engagement with the ratchets of the head sleeve so that the device may be used either as a right or left hand wrench.

With these and other objects in view, this invention resides in the novel features ofk construction, formation, combinations and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a plan view. Fig. 2 is a side elevation. Fig. 3 is a plan view, with the cap plate removed. Fig. f1 is a perspective view of the head. Fig. 5 is a sectional View on line 5 5 of Fig. 1. Fig. 6 is a sectionalviewy on line 6-6 of Fig. 1.

Referring to the drawing, the numeral 1 designates a handle, one endof which is provided with a cylindrical casing 2 which rotatably receives the sleeve 3 of the head 4. The sleeve 3 is formed with a pair of spaced reversely directed series of ratchet teeth 5 and 6 which are engaged by pawls 7 and 8, respectively. The pawls 7 and 8 are formed with rounded ends 9 which seat in the semi-circular bearings 10 formed in the handle 1 adjacent the casing 2, so that the pointed ends of the pawls engage the ratchet teeth formed in the sleeve.

Carried by the handle 1 are leaf springs 11, the outer ends of which bear against the pawls 7 and 8 and tend to force the same into engagement with the ratchet teeth carried by the sleeve 3. When a pawl 7 is to be disengaged from the ratchet, the thumb piece 19 is pressed to rock the lever 14 and actuate the rod 16 to disengage the pawl and when the pawl is to be held in its dishandle.

engaged position, the projection 13 on the lever p14: is engaged .in the recess '13 in the To accomplish this-the levers 14V are pivotally connected at their inner ends to the handle l, said inner ends terminating in right angle extensions 15. Connected to the extensions 15 are the inner ends of the wireV links 16, the outer ends of which are provided with eyes 17 which interlock with eyes 18 carried by the pawls 7 and 8.

The outer ends of the levers 14 are provided with iinger grips 19 which when grasped serve to rock said levers to actuate the links to either cause engagement or disengagement of the pawls with the ratchet teeth, the pawls being held from disengagement with said teeth when the projections 13 are engaged in the space between the springs and handle.

The sleeve 3 is provided with a plurality of posts 2O which engage the notches 2l formed in the wall of the central opening 22 of the cap plate 23, said posts having perforations formed therein for receiving cotter pins 24 to securely hold the sleeve 3 in the casing.

The head l is provided with a nut en gagingsocket 25, in which may be placed interchangeable bushings 26 having various sizes and shapes of sockets, so that nuts of different sizes and shapes may be engaged. To retain the interchangeable bushings in the socket 25, a swinging latch 27 is carried by the head 8 and may be swung from engagement with the outer face of the bushings, said bushings being provided with recesses 28 in which the latch engages.

In use the socketed head is placed upon a nut and the desired pawl operated to engage its respective ratchet teeth, whereby the handle is swung backwardly and forwardly, the forward movement causing the pawl to impart rotary movement. When it is desired to reverse the movement of the head the other pawl is operated to engage its ratchet teeth and the former pawl is disengaged. It is obvious that when both pawls are engaged their lrespective teeth or the head is caused to rotate in whatever direction the handle is rocked, it only being necessary to do this when the operator has plenty of room to swing the handle 1.

lVhat is claimed is In a ratchet wrencln'the combination with a handle and a nut engaging member rotatably mounted therein and having a 'ratchet Wheel, of a paWl disposed to engage lever is in position to hold the pawl disen- 1G the ratchet Wheel at times, means for holdgaged. ing the paWl yieldably engaged and an an- In testimony whereof, I affix my signa- Ygular `lever pivoted to Ythe handle and op-v ture, in the presence of two Witnesses.

5` erativelv connected with the pawl to movev it into disengaged position, 'the lever having JOHN R' HUNT' projection extending in the direction of 1Witnesses:

t' the handle and thehandle having a socket ELMER W 00D,

disposed to receive the projection When the S. J. C. E121'.

Copiesoftliis patent may `be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. C.

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