US1507974A - Ratchet pliers - Google Patents

Description

RATCHET PLIsRs me nec. 1o x92;

23 S14/vanto@ 5 f zu/@f ,v 2y 32 m1? I ,Il l l 61H0: naga! Patented Sept. 9, 1924.

UNITED STATES CHARLES' E. NQRTHUP, or rHrLMoN'r, NEW Yori-K.

RATCHET PLIERS;

Application fried December' 1o, 1923. serial No. 579,689.

To all whom tmag/ concern.' Be it known that I, CHARLES E. NoirrHUr, a citizen of the United States,

residing at Philmont, in the county of Columbia and State of New York, have in-f vented new and usefullatchet Pliers, of which the following is a specification.

This invention relates to tools, and more particularly pliers, the primary object `of the invention being to provide pliers which may be held in gripping relation with an arvmg and provide a support for the handle ticle, and at the same time rotated for positioning nuts or the like, elimina-ting the necessity of the operator moving his hands from the tool to accomplish the rotation thereof. Y f

Another object of the invention is to provide means for adjusting theA jaws of the tool with respect to their support to in` crease the leverage'of the handle sections ofv may be readily and easily removed and re-A paired when worn or otherwise yrendered inoperative.

Vith' the foregoing and other objects in view which will appear as the description proceeds, the4 invention resides in the combination and arrangement of parts 4and in the details of construction hereinafter described andv claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention. y

Referring to the drawing:

Figure 1 is a side elevational view of a tool constructed in accordance lwith the invention. u

Figure 2 is an elevational view thereof, parts thereof being shown in section to illustrate the fingers of the jaws.

Figure 3 is a plan View of the tool, portions thereof beingshown in section.

Figure 4 is asectional view taken on line 4 4 of Figure 2.

Figure 5 Yis a perspective View of the jaw support. j

Referring to the drawingin detail, the reference character 5 designates one of the handle sections of the tool which is formed with a head 6 at one end thereof, the head being circular in formation andvprovided with an inwardly extended annular flange '7 providing an abutment for one end of the lrousing 8i which' is also formed with a flange member 9. The linner wall of the head 6 is threaded to accommodate the securingfrinff lOwhich is threaded and adapt- 4ed to engage one edgeof they flange member 9 to hold the housing 8 in position within the head.

Arms 11 extend rearwardlyfrom the houssection 12 whichv has pivotal connection -therewith at 13. This handle12 is formed with inwardlyextended spaced ears 14 be` tween which the screw 15 is positioned, the` head V16 thereof "contacting with the ears 14 for purposes to be hereinafter more fully described. Y

The flange 9-is formedwith teeth 17 thaty are Idesigned to be engaged by the pawls 1S which are mounted in the head, at 19, which pawls are held to their active positions by means of the spring arm 20y pivotally mounted. on the head at k21 so that the4 spring arm may' be movedfrom a position as shown by Figure 4 wherein one of thev pawls is raised and the other pawl lowered, to engage the opposite pawl to force the same toits active position., j

Each pawl is formed with an upwardly and rearwardly extended finger 22, which is engaged .by the spring arm when the spring arm is moved into engagement with one of the pawls to force it toits active position. Due to the construction of the finger, the opposite pawl. isl elevated to disengage the teeth; It will thus be seen that bynnoving the spring arm 20 to a position directlyover the pivot 19, both pawls willbe depressed or moved to their active positions. j

' As the handle sections .re rotated, it is obvious that the head thereofwill, through its pawls 18, rotate the housing S. Extending into the housing 8 is a supporting member indicated at 2.3, which is formed with y a head 24 aperturejd as at 25 to receive the pivot pin 26that supports the jaws 27 on opposite` sides of the head 24. At the rear end of the member 23, is a block 28 formed with a threaded .opening to receive the screw 15 so that the member23 may be adjusted longitudinally of the handle sections 5 and 12.

The jaws 27 are formed with rearwardly.

curved fingers 29 that are designed to engage the cams 30 secured to the inner surface of the housing 8, so that as the member 23 is moved longitudinally of the housing, the fingers 29 will be moved with respect to each other to cause the outer ends or gripping portions of the jaws to move towards each other` to grip an article therebetween.

Guide blocks 3l are also secured within the housing and act to guide the fingers 29 in theirm'ovements. In order that the pawls will be securely held by the spring arm 20, an enlargement 32 is provided on the arm which enlargement is adapted to engage within notches 33 formed in the head 6 to hold the arms 2O in selective positions.

In the use of the device, the jaws 27 are moved to their open positions, by moving the handle sections 5 and l2 away :trom each other, whereupon the jaws are positioned over a nut, bolt or the like under operation, whereupon the handle sections are moved towards each other, forcing the supporting member 23 outwardly and causing the lingers 29 to move over the cams 30 to the end that the jaws 2T closely grip the article under operation.

If it is desired to rotate the article as to position a nut or the like, the handles are moved to engage the article and the pawls to enga-ge the teeth 17 to rotate the jaws.

I claim:

l. In a tool, a pair of handle sections, a head formed on one end of one handle section, a housing rotatably mounted within the head, a pair of jaws, means extending through the housing for supporting the jaws, one of said handle sections having pivotal connection with the head, vmeans for supporting the last mentioned handle sect-ion and jaw supporting means, whereby movement of the handle will cause the jaws to move through the housing, and means in the housing cooperating with the jaws for movingl the jaws with respect to each other.

2. In a tool, handle sections, a head formed at one end of one handle section, a housing having teeth, supported within jaws supported within the housing, and.

means controlled by the movement of one handle section for moving the jaws towards and away from each other.

4. In a tool, handle sections, a head formed on one handle section, a housing supi ported within the head, cams extending inwardly from the housing, a pair o pivoted jaws, each of said jaws having a curved finger, said curved fingers adapted to engage the cams, and means for moving the jaws longitudinally of the housing to cause the jaws to move towards and away from each other,

5. In a tool, handle sections, one of said handle sections having a head, a housing mounted for rotation within the head, a supporting member extending through the housing, pivoted jaws mounted at lthe outer end of the supporting member cams within the housing, said jaws having curved fingers cooperating with the cams, means for adjustably connecting one rof the handle` sections and the supporting member, and said jaws adapted to move towards and away Jfrom each other by their contact with the cams.

In testimony that I claim the foregoing as my own, I have hereto ahixed my signaf ture in the presence of two witnesses.

CHARLES E. NORTHUP.

lVitnesses J. E. TAn'rIss, HAROLD L. DE VALD.

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