USRE13657E - Necticut - Google Patents

Description

W. A. BERNARD.

- CUTTING PLIERS. Reissued Dec. 16, 1913.

APPLIGATION FILED NOV.11, 1913.

)0 l5 I2 I, 1 W] I fame/3&7,"

e2 M; 7 66M 1 7%,

, UNITED STATES PATENT OFFICE.

WILLIAM A. BERNARD, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE WILLIAM SCHOLLI-IORN COMPANY, OF NEW NECTICUT.

HAVEN, CONNECTICUT, A CORPORATION OF CON CUTTING-PLIEBS.

Original No. 1,077,789, dated November To all whom it may concern Be it known that I, WILLIAM A. BERNARD, a citizen of the United States, residing in the city and county of New Haven, State of Connecticut, have invented certain new an useful Improvements in Cutting-Pliers, of which the following is a full, clear, and exact description.

This invention relates to pliers and tools of a similar type having pivoted handles, and more particularly to tools in which the main jaws have the so-called parallel move ment.

One of the objects of the invention is to provide a tool of this kind having an end cutter formed of a cutting edge on the outside of one of the main jaws cooperating with a cutting edge on an auxiliary or subsidiary jaw. It is also proposed to combine an end cutter and a side cutter in a novel and superior manner. Furthermore, in accordance with my invention, the end cutter is so constructed and arranged that the wire to be out can be very easily and conveniently inserted therein, whether in short or long lengths, and the construction is such that the operating force applied to the handles of the tool is so transmitted to the subsidiary or auxiliary jaw that all portions of its end cutting edge will have a uniformly strong biting action by avoiding any tendency which the subsidiary jaw might have to become twisted with respect to the handles. By the improved construction the operating force is transmitted directly and uniformly to the end cutter as well as to the side cutter.

To these and other ends the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawing, Figure 1 isa side elevation of a tool embodying the invention showing the same in its closed position, Fig. 2 is a similar view from the opposite side of the tool, Fig. 3 1s a detail longitudinal section showing the position of the parts when the jaws are open, Fig. 4 is a top plan view of a portion of Fig. 2, Fig. 5 is a front end view of Fig.2, and Fig. 6 is a detail perspective view ofthe pivoted cutting jaw.

Referring to the drawing, the handles 10 and 11 of the tool are forked at their for- Specification of Reissued Letters Patent. Reissued Dec. 16, 1913.

4, 1913, Serial No. 732,551.

Serial No. 800,693.

Application for reissue filed November ward portions as usual, and these forked portions are crossed and pivoted together by means of separate pivots 12 and 13 at opposite sides of the tool. In other words, the side portion or tine of one fork is pivoted to the adjacent side portion or tine of the other handle by a separate pivot at one side of the tool and the same arrangement is adopted at the opposite side. The plier jaws are shown at 14 and 15 respectively and these jaws are mounted for parallel movement in the well known way by means of pivots 16 and 17 at the forward extremities of the handles and guide pins 18 and 19 carried by the respective handles at the rear of the pivots 12, 18 and engaging slots 20, 21 at the rear ends of the respective parallel jaws. This manner of mounting the plier jaws is old and well known and need not be described in further detail.

In accordance with the present invention, the jaw 15 is provided at its outer part c'. e. at the side opposite its inner working surface, with an enlargement 23 which overhangs the jaw on one side and is provided throughout its length with a cutting edge 22. At the side of the jaw 15 opposite the overhanging portion thereof said jaw is provided with a cutting edge 24 located approximately flush with or in the plane of the side of the jaw and of the tool and approximately at right angles to the cutting edge 22. The cutting edges 22 and 24 preferably meet at 90 degrees, as shown, but this is not essential in all aspects ofthe invention. The edge 22 is substantially parallel to the main pivotal axis of the tool and is termed an end cutting edge, whereas. the edge 24 is substantially perpendicular to such axis and is termed a side cutting edge. Cooperating with the cutting edges 22 and 24 of the main jaw 15 is a pivoted subsidiary jaw 25 mounted on and movable about the pivot screw 13. This jaw 25 is formed to correspond with the cooperating portion of the jaw' 15, that is to say, its working portion is shaped generally to correspond with the enlarged portion 23. The end cutting edge to coiiperate with the end cutting edge 22 of the main jaw is shown at 26 and the side cutting edge to cooperate with side cutting edge 24 of the main jaw is shown at 27 The shank portion 28 of the pivoted jaw 25 consists of a flat plate housed in a suitable recess 29 at one side of the jaw 15,, in which recess said shank portion is arranged to work pivotally about the pivot 13 by means of which the lever handles are pivoted together, the opposite end of sald shank portion being pivoted on the pivot 17 by means of which the forward extremity of the handle 11 is pivoted to the jaw 15.

The operation of the tool will be obviousfor the most part from the foregoing description. hen the main jaws 14, 15 are separated by a pivotal movement of the handles the pivot 17 will be moved farther away from the median line or longitudinal. axis of the tool, thereby moving the jaw 25 about the pivot 13. and separating it from the cooperating side cutters are moved away from each other. On closing the tool by pressing together the lever handles a reverse movement of the jaw 25 will take place and the same will have its cutting edges brought into contact with the respective cutting edges of the main jaw 15- at the moment that the working portions of the main jaws are brought into contact with each other. The function of the side cutter formed by the cutting edges 24, 27 will be obvious, and it will also be readily understood that the end cutter formed by the cutting edges 22, 26 will not only cut small lengths of wire or other material inserted between the edges 22, 26 in line with the jaw 15, but will also out long lengths of wire or other material which are passed through the overhanging laterally projecting portions of the jaws 23, 25 at one side of the tool. In other words the overhanging portions of the cutting edges 22, 26 are of such length as to out wires of different thicknesses which are inserted between said edges in such. a manner as to lie transversely across the main jaws immedi'ately adjacent to those ends of the pivots 16, 17 which are shown in Fig. 2.

It is important to note that the cutting edge 26- of the pivoted jaw 25 is" distributed about equally on opposite sides of the shank 28 of said jaw, as shown in Fig. 4. In this manner the operating force is transmitted to portion of the cutting edge the 'mi'ddle rather than to one end'of the same, and all site the side cutter. By this arrangement, it

is an easy matter to extend the main portion of the jaw 25 to substantially the samedisportion of the jaw 15,, whereby the cutting edges of the end and of aws, a

of said jaws cutting edge,

; ating with the latter, 1ng said subsidiary jaw as the main jaws parallel main jaws, on theoutside thereof a transverselyextendone side, pivoted aws, a: subsidiary 'v'ention is not limited to a tool in which the I jaws 14, 15 or their equivalents are plier jaws. Numerous modifications in this and other respects may be made within the scope of the appended claims.

What I claim is: p

1. In a tool such as described, a main pair of jaws, a pivoted subsidiary jaw having a side cutting edge substantially flush with a side of one of said main jaws, and provided with an end cutting edge extending transversely of said main jaw at the outside of l the latter and meeting said side cutting edge, cutting edges on said main aw to cotiperate with the edges, and means to operate said jaws; sub- 1 stantially as described.

respective" first named cutting 2. In a tool such as described, a main pair pivoted subsidiary jaw having a side cutting edge substantially flush with a side of one of said main jaws, and provided with an end cutting edge extending trans versely of said main jaw at the outside of the latter and meeting said side cutting edge, cutting edges on said main jaw to cooperate with the respective first named cutting edges, and means to operate said jaws, the end cutting edges of said main jaw and subsidiary jaw overhanging said main jaw at one side; substantially as described.

3. In a tool such as described, a main pair of jaws provided with cooperating inner working faces, one of said jaws having at the edge or, side opposite its working face an enlargement presenting a transverse cutting edge extending across the jaw and overhanging the same at the side, a subsidiary jaw pivoted to said main jaw and provided with a cutting edge to cooperate with said first named cutting edge, and means for op erating said jaws; substantially as described.

4. In a tool such as described, the combination of a pair of parallel main jaws, pivoted handles for operating the same, one having at the side thereof a a subsidiary jaw pivoted to at the side opposite said outhaving a cutting edge cooperand means for operatsaid main jaw ting edge and are moved toward and away from each other substantially as described. twisting of the jaw 25 with respect to the l handles is prevented by locating the shank 28 at that side of the jaw 15 which is opp0- 5. In a tool such as described, a pair of one of said jaws: having ing cutting edge overhanging said jaw at handles to operate said aw having said cutting edge at the same s de as the overhanging portions of said cutting edge, said subsidiary jaw having a cut ting edge to cooperate with that of the main aw, and means to operate said subsidiary jaw as the ma l-n1 jaws are operated-.; substantially as described.

jaw pivoted to the main 6. In a tool such as described, a pair of parallel main jaws having inner working faces, one of said jaws having an end cutting edge at the side opposite the working face, and provided with a side cutting edge meeting said end cutting edge, a subsidiary jaw having a shank pivoted to said main jaw at the side opposite said side cutting edge, and provided with cutting edges to cooperate with both of said first named edges, and means to operate said subsidiary jaw as the main jaws are operated; substantially as described.

7. In a tool such as described, a pair of parallel main jaws having inner working faces, one of said jaws having an end cutting edge at the side opposite the working face, and provided with a side cutting edge meeting said end cutting edge, a subsidiary jaw having a shank pivoted to said main jaw at the side opposite said side cutting edge, and provided with cutting edges to cooperate with both of said first named edges, and means to operate said subsidiary jaw as the main jaws are operated, the end cutting edges of said main jaw and subsidiary jaw respectively overhanging said copies of this patent may be obtained for main jaw at the side opposite said side cutting edge; substantially as described.

8. In a tool such as described, a pair of parallel main jaws having inner working faces, one of said jaws having an end cutting edge at the side opposite the working face, and provided with a side cutting edge meeting said end cutting edge, a subsidiary jaw having a shank pivoted to said main jaw at the side opposite said side cutting edge, and provided with cutting edges to cooperate with both of said first named edges, and means to operate said subsidiary jaw as the main jaws are operated, the end cutting edges of said main jaw and subsidiary jaw respectively overhanging said main jaw at the side opposite said side cutting edge, and the end cutting edge of said subsidiary jaw being distributed about equally on 0pposite sides of the shank of said jaw; substantially as described.

In witness whereof, I have hereunto set my hand on the 19th day of November, 1912.

WILLIAM A. BERNARD.

Witnesses:

HENRY E. ROCKWELL, M. OLIVE WILLIAMS.

five cents each, by addressing the Commissioner of Iatentl, Washington, I). G.

Images