US611102A - Combined wire-shears and parallel-jaw pliers - Google Patents

Description

No. eu,|o2. Patented Sept. 20, I898. P; BRDADBOOKS. CUIBINED WIRE SHEARS AND PARALLEL JAW PLIEBS.

(Application filed Oct. 8, 1897.) (No Model.) 2 Sheets-Sheet l.

Inventor Y Peter fimadfiaok; Z

No. 6l|,|02. Patented 'se t. 20, I898.

P. BRUADBOOKS. COMBINED WIRE SHEABS AND PARALLEL JAW PLIERS.

(Application filed Oct. 8, 1897.) (N 0 M o d e I 2 Sheets-Sheet 2.

Wz'brzessesa Inventor [Q PeierfimadooZ-J m: NORRIS PETERS co., F'HOYCI-LITHOH wasumamu, n. c

NiTED STATES PATENT E ICE.

PETER BROADBOO'KS, OF 'EATA'VIA, NEW YoEK.

SPECIFICATION forming part of Letters Patent No. 611,102, dated September 20, 1898.

I Applicationfiled October 8, 1897. Serialll'o. 654,539- (ITo model.)

To all whom it may concern.-

Be it known that 1, PETER BROADBOOKS, a citizen of the United States, residing at Batavia, in the county of Genesee and State of New York, have invented a certain new and useful Improvement in Combined Wire- Shears and Parallel-J aw Pliers, of which the following is a specification.

My invention relates to a new and useful improvement in combined wireshears and parallel-jaw pliers, and has for its object to so construct such a device that, the pliers shall add great strength and durability to the wire-shears; and a further object of my invention is to produce a device of this description which shall be exceedingly simple in construction and efficient in action.

With these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by. the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, formingapart of this specification, in which Figure 1 is a side elevation of a pair of parallel-j aw pliers having my improvement combined therewith, the device being closed; Fig. 2, a similar view, the jaws being open and a portion of the handles being broken away; Fig. 3,a dismembered perspective view of the device, showing the several parts which together make up my improvement; Fig. 4., a view similar to Fig. 1, but showing an addition thereto of a punch. Fig. 5 illustrates the embodiment of my improvement in a pair of cut-off pliers; Fig. 6, a detail section of pivoting-stud and Fig. 7 is a top plan view of the form shown in Fig. 4, the handles being broken away.

In carrying out my invention as shown, A and B represent the handles of a pair of pliers, which are let together and pivoted at O, the circular heads being cut away, as indicated at D, for the purpose hereinafter set forth.

E and F are the parallel jaws, which are pivoted directly to the levers at G, and these jaws are slotted at the rear, so as to provide the shanks H, which embrace the heads of the levers andare pivoted thereto by means of the studs I, said studs being set in the handle-levers, so. as to revolve therein, and are flattened at the points extending through the slots J, formed in the shanks, the object of which is to present a comparatively large bearing-surface between these studs and the walls of the slots and permit the flattened sides of the studs always to lie parallel with the side walls of the slots, as will be readily understood. This arrangement forms an exceedingly rigid joint between both the levers and the parallel jaws, thus preventing the twisting of either said levers or jaws when in use, and this is an important feature of my improvement, since heretofore the sidewise strain brought to bear upon pliers and cutters, spring and twist the same to such an extent asv to often resultin the breaking thereof.

Gutters K and L may be secured or formed with the parallel jaws E and F, respectively, and so arranged that they will serve as cutoffs for wire and the like, and it is to be noted that these cutting-jaws are close to the center fulcrum while the tool is open, so that when said jaws enter into the metal to be cut the cutters travel or draw away from said fulcrum and the distance between said fulcrum and the cutters is greater, so that a wire may be set against the head of the levers and be out without the least outward strain on the cutters, thus obviating the wedging in of the piece out between the cutters and the head of the levers. The shanks of the parallel jaws lyingin close contact with and covering nearly the whole surface of the lever-heads, which are pivoted substantially, they are not liable to strain or twist by the pressure.

The cut-away portion D of the lever-heads is for a better accommodation of the wire or other article to be operated upon by the cutters K and L. Cut-off dies M may be formed in the rear portion of the heads of the levers and be utilized for severing small Wire rods.

In Fig. 4 I have shown embodied with the construction just described an overhanging arm N, pivoted between the shanks of the jaw E by means of the pin G, which also pivots the jaw to the handle, said jaw E being slotted just a little farther forward in this construction than in the first-described form. A A rearwardly-projecting extension X is formed on the arm N and bears against the rounded edge of the lever A, with which it is arranged eccentrically, as shown in dotted lines in Fig. 4,whereby it will be understood that when the jaws are pressed together the rounded edge will press against the extension X and cause it to operate the lever N, on the forward end of which is a punch 0, working in the die I, formed on the upper jaw. It has been found that this combination is advantageous and that a most powerful punch relative to the capacity of the implement is thereby provided.

The cut-off pliers shown in Fig. 5 consists of the handlelevers Q, which are pivoted together at R and have pivoted thereto at S the cut-oil? jaws 'l, the shanks of said jaws being slotted and pivoted to the handle-levers by the studs U, with the same result as that just described, these jaws terminating in the cutting edges V in the usual manner. Cut-elf dies IV may be formed in both the front and rear of the heads of the levers for the usual purpose. It is to benoted that in this construction the jaws cannot twist, because they move in a direct line to each other and have more room, so that a wire may be placed nearly to the center of the cutter.

Of course I do not wish to be limited to the construction here shown and described, as these details may be varied to a considerable extent without departing from the spirit of my invention, and the device may be utilized for other tools than those here set forth.

Having thus fully described my invention, what I claim as new and useful is- 1. In a pair of pliers, two levers pivoted together, parallel jaws having slotted shanks embracing said levers, said jaws being pivoted to the levers and also connected thereto by movable studs operating in slots, and cut-off jaws carried by the first-named jaws, as specifled.

2. In combination, a pair of handle-levers let together and pivoted to each other, apair of parallel jaws, slotted shanks formed therewith adapted to embrace the levers, said jaws being pivoted to the front portion of said 1evers, revolving studs set in the levers and having flattened portions projecting through slots formed in the shanks of the jaws, cutoff dies carried by the heads of the levers, and cutters carried by the parallel jaws, as shown and described.

3. In combination with a pair of pliers of the character described, an overhanging arm formed with one of the handle-levers, and a die carried by one of the parallel jaws, substantially as and for the purpose set forth.

4. A pair of pliers consisting of two levers, plier-jaws hinged thereto and means for holding said jaws parallel with each other when the levers are operated.

5. A pair of pliers consisting of two levers, jaws pivoted thereto having slotted shanks, and studs on the levers projecting through said slots, as and for the purpose described.

In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses. 7

PETER BROADBOOKS.

Witnesses:

G. H. HOLDEN, G. A. IIULL.

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