US1892082A - Pliers - Google Patents

Description

Dec, E?, H932. N. .1. SHEKERJIAN PLIERS Filed Aug. 1'7. 1931 Ufff'.

Llil Patented Dec. 27, 1932 'UNITED STATES PATENT oFFicE IPLIERS Application led August 17, 1931.y Serial No. 557,691.

This invention relates to an improved pair of pliers having pivoted jaws whichis intended especially for fine work such as in cabinet making, furniture repairing, upholstering and the like.

A primary object of this invention is to enable the pivoted jaws to efficiently remove nails, tacks, brads, screws, staples and the like from furniture or other woodwork. so that the woodwork is not marred or blemished as generally occurs in dislodging the same by means of pin'cers, pliers or prying implements as heretofore use d.

-A further object of this invention is to provide a pivoted jaw tool with supplementary pulling lips or jaws which are of smaller size* than the main jaws and which are adjustable in relation thereto toa very fine degree. d

A irther object of this invention is to provide an improved adjusting and securing means for the jaws, whereby the] aws may be `quickly and easily either secured oradjusted in position to compensate for shortening of thejaws as they aresharpened after being worn and to allow the jaws to be adjusted relative to the main jaws.

Still another'object of this inventionis to provide vone of the permanent jaws with a Vremovable or integral fulcrum member, whereby a greater pulling leverage may be exerted on the jaws without marring or injnri'ng the object from which the nail or other ember is being removed. j f Yet another object of this invention is to provide a pair of removableV adjustable cutters on the permanent aws which are capable of being quickly removed for ieshaipen- 40 ing or replacing and of being easily secured and adjusted While in position. l

With the foregoing and other objects in View as will hereinafter become apparentv` this invention comprises the constructions.I

f' 45 combinations and arrangements of parts,

.50 stituting this invention.`

Figure 2 is a side view of Figure 1 looking from the right hand side thereof.

`Figure-3 is a plan view vofthe head of the pliers.

Figure 4 is a plan view looking down at the top end of Figure 1.

lFigure 5 is a perspective view of the jaw having the removable fulcruin memberthere- Figure 6 is a cross section on line 6 6 of Figure 3 through removable aw securing means, and

f Figure 7 is a section on line 7 7 of Figure 6.

The combination tool constituting this invention includes a pair of archedk handle members 10 and 11, pivoted to each other as at 12 and merging into opposed permanent or integral aws 18 and 14, the meeting poi'- A tion of the handle 10 and 11 being recessed at vthe-pivoted point as shown at 15`and 16.

Each of the integral jaws 13 and 14 has a cooperating adjustable removable jaw 17 and 18 therein, and inasmuclias the construction Y of each of these jaws 17 and 18 and their securingfineans 20 is identical, only one of them needs to be described in detail. Each j aw 17 and 18 is provided with a gripping point 19 cooperating with a similar gripping point of the opposing jaw. A pair of opposite longitudinal channels 21 and 22 are provided on opposite sides of the removable jaw member, while the back of the removable jawmember is provided with ratchet teeth 23. The permanent jaw members 13 and 14 are each provided with alongitudinal channel 24 from opposite sides of which project a pair of longitudinal ribs 25 and 26. The channel 24 is of such a size and length as to snugly receive the removable jaw 17 or 18 therein, with the channel members 21 and 22 cooperating Vwith the ribs 25 and 26, thereby allowing the jaw members 17 or 18 to move freely longitudinally, but not transversely to the permanent jaw members. The channel 24 will be deep enough to allow the teeth 23 to move freely therein without coming in contact with the permanent jaw member.

Recessed within the permanent jaw member from the channel 24 is a well 27 adapted holding itfimmovably in position. To remove the aws, the screw member'29is withdrawn, thereby allowing the tooth plug 28 to retract and the jaws 17 and 18 to be easily adjusted or removed. Due to the number of teeth 23 it is obvious that the points 19 lmay be set at any desired distance Vfrom the end of the permanent jaws.

VSecured near the ends ofthe 4permanent jaws 13 and 14, which it will be noted are 'spaced apart, are a pair of cutters 32. VEach cutter is longitudinally slotted as at 33 to provide for the passage of a screw 34 therethrough into a threaded opening 35 in the permanent jaw members, the cutter members having their sharpened ends 36 cooperating with each other. j

Formed on one of the jaw members 14 is a fulcrum member 37 arcuately shaped as clearly shown in Figures 1, 3 and 5. This fulcrum member 37 projects slightly beyond the end ofthe jaw member ofthe integral jaw v13 as at 38 and may be eitherpermanently or removably secured to the :jaw member 14. In order to be removably secured` its contacting surface is made complementary to the outside edge-of jaw -14-and the screw member 29 may alsoserve to secure fulcrum member 37 to jaw`14;

vIn operatiom'the jaw-points 19 willbeadjusted so as 'to project just lthe Iright amount beyond the ends of the permanentjjaws for allowing them to grip the nail, brad orother tack or element that it is desiredfto extract.

The'point 19 will enable the j awslto secure good grip on this element while the surface 38 of lfulcrum 37 comes into contact withthe piece of furniture or other-objectlfrom which the element isbeing-extracted. The pliers are then rotated about the arcuate surface 38 as a fulcrum point, thus providing a great deal of leverage with a minimum amount of edort and easy extraction ofthe elementbeing removed results. v n

As will be ',observedythe pointed ends 19 of the removable, jaws are comparatively small and thus occupy very little more space than `the average small nailor brad being withdrawn so that there is no marring of the furniturebeing operated upon. .The jaws 19 will grip the nail or brad securely without marring the wood.

When the points 19 become worn the jaws 17 and 18 may be easily removed by loosen- 1ngscrews29 and reshar-penedand replaced,

the teeth 23 and tooth plug 28 allowing for adjusting the jaws as they are worn down by resharpening. Furthermore, the jaws may also be adjusted for the purpose of getting a deeper grip on the nail or brad being with drawn when such is necessary.

The cutters 32 are operated bymcrely opening and closing 4the handles 10zand :11 and when worn may be easily removed by removing the screws 34 whereby the points 36 may be resharpened, the slots 33 allowing the jaws tovbe adjusted as the edges 36 are worn away through sharpening.

It will be .noted that arched handles 10 and 11 have internal projections 39 and 40 which meet when the pliers are fclosed to limit the amount that Athe points 19 lof the : adjustable jaw 17 and 18 can approacheach other.

In operation, it will be usually `found dei sirable to so adjust the positionoffremovable jaws 17 and 18 so that kthe points 19 thereof will just fail to come into `contact 4or will be very slightly spaced apart vatthe time that projections 39 and 1-0 come intocontact with each other and prevent the points 19 from clashing with each other. This'will'have the effect of lengthening the life ofthe points 19 in that there will be no wear of one point Itis further to be understood that the cuti! ters 32 each have its inner `contact facesprovided with a series of teeth (similar to the ratchet teeth 23 shown in detailiof Figure 7 so that said cutters will lbe relatively V4immovable when in mesh kwith complementary ratchet teeth fixed upon the jaws 13 and 1:4

respectively.

Having 'thus set forth and ldisclosed* the nature of this invention` what isclaimed is:

1. In a pivoted jaw tool in combination a pair of pivoted handle members having integral opposing jaws, vthe opposing surface of each of said jaws having longitudinal channels therein, longitudinal rib members projecting from the opposite sides of said channels, removable jaw members receivable in said longitudinal channels, said removable jaw members having channels formed on opposite sides thereof to cooperate with said rib members, means cooperating with the .backs of said removable jaw members 'to hold the same securely in adjustable positions, said means comprising a series of teeth formed on the back of the jaw members, a vtooth block TIJD received in a Well in said integral jaw mem-k bers, and means for holding said tooth block against the teeth of said removable jaw to look said removable jaw in position.

2. In a pivoted jaw tool in combination a pair of pivoted handle members having integral opposing jaws, the opposing surface of each of said jaws having longitudinal channels therein, longitudinal rib members projeoting from the opposite sides of said channels, removable jaW members receivable in said longitudinal channels, said removable jaw members having channels formed on opposite sides thereof to cooperate with said rib members, means cooperating With the backs of said removable jaw members to hold the same securely in adjustable positions, said means comprising a series of teeth formed on the back of the jaw members, a tooth block received in a Well in said integral jaw members, and means for holding said tooth block against the teeth of said removable jaw to lock said removable jaw in position, said latter means comprising a screw member projecting through said integral jaw, said screw member being countersunk in said integral jaw.

In testimony whereof I affix my signature.

NEWTON J. SHEKERJIAN.

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