US851708A - Shears. - Google Patents

Description

PATENTED APR. 30, 1907.

G. P. TAYLOR.

SHEARS.

APPLICATION FILED SEPT. 25, 1905.

2 SHEETS-SHEET 1.

"wulfcess esz 9 lea/c2291 No. 851,708. I 'BATENTBD APR. so, 1907.

. e. P. TAYLOR.

SHEARS.

APPLICATION FILED SEPT. 2511905.

2 SHEETS-SHEET 2.

Tuii e ses: 17 6 amt-a0.-

/ 7395M (kalil'iylaa.

5 constructed UNITED STATES PiaTENT OFFICE.

GEORGE P. TAYLOR, OF CLINTON, MASSACHUSETTS.

Application filed September To allLwho m it may concern.-

Be it known that I, Gnoncn P. Tarpon, a citizen of the United States, residing at Clinton, in the county of \Vorcester and State of Massachusetts, have invented a new and useful Shears, of which the following is a speci'l'e cation.

This invention relates to apair of shears especially designed for use in trimming lawns.

The especial object of this invention is to provide a light, durable, e'llicient and inexpensive pair of shears which can be used in trimming a right position.

A further object of this invention is to construct the parts of sheet metal so that the same can be stamped out in quantities at comparatively low cost.

To these ends, this invention consists of the shears and of the combinations of parts therein as hereinafter described and more particularly pointed out in the claims at the end of this specification.

In the accompanying two sheets of drawings, Figure 1 is a perspective view of a pair of shears constructed according to this invention. Fig. 2 is a fragmentary view of the operating piece of the movable handle. Fig. 3 is a perspective view of the movableshearblade. Fig. 4 is a 'l ragmentary perspective bottom view of the construction. Fig. 5 is a perspective view of the cover-plate for housing the working parts. Fig. 6 is a sectional View taken on the line 66 of Fig. 1. Fig. 7 is a perspective view of a modified construction with the coverplatc omitted. Fig. 8 is a fragmentary view of the operating plate of the movable handle. Fig. t) is a detail view of the catch for holding the movable blade open until released by closing of the shearhandles. Fig. 10 is a perspective view of the gear segment for operating the movable shear blade. Fig. 11 is a detail view of the closing spring, and Fig. 12 is a sectional view of the construction illustrated in Fig. 7.

In a pair of shears constructed according to this invention, the shears are operated by handles of su'llicient length to permit a per- .son to use the same for cutting grass while standing in an upright position, the cutting blades of the shears being located at an angle with respect to the handles.

Referring to the accompanying drawings for a detail description of a pair of shears according to this invention, Fig. 1 shows the simpler term of shears embody- Speeification of Letters Patent.

lawn by a person standing in up- SHEARS.

Patented April 30, 1907.

Serial No. 280.097-

ing this invention, in which the movable cutting blade is operated by a geared connection from a movable handle; while the second sheet oi drawings illustrates a construction in which the movable blade is operated in such a way that the cutting blades will snap together with spring pressure.

Referring to the first sheet of drawings, the

pair oi" shears illustrated thereby comprises a sheet metal angle-piece having the horizontal part 15 and the upwardly extending inclined part 16. Formed with and extending 'from the horizontal part 15 is a fixed shear blade 17, and extending from the inclined part 16 is the handletang or piece 19. The fixed shear-blade is preferably provided with a serrated or saw-toothed cutting edge 18, and the entire sheet metal stamping is preferably strengthened by corrugations 20 and 21, the corrugation 21 extending part-way into the handle-tang 19 and also along the length of the fixed shear blade 17. The movable shear blade 22 is provided at one side of its pivot with a strengthening corrugation 23, and at its other side has gear-teeth to be operated \l'rom the movable handle as hereaiter referred to. The pivotal connection between the shear blades 17 and 22 is secured by a l bolt 24 and nut 26 which clamps the blades l together by means of a spring washer 14. The spring-washer 141, as shown in Fig. 1, is cut out to lit over the strengthening corruga tion 21 and is also notched to have the requisite spring action i'or holding the shear blades together with the spring tension required for producing the best cutting action. The movable shear blade is operated by a handlepiece 27 which is pivoted on a screw 28 on the inclined part oi" the angle piece. At its lower end the movable .handle piece 27 has gear-t eeth meshing with the gear-teeth of the movable blade, and above its pivot the handle-piece 27 is provided with a handle-tang for fitting into the movable handle 31. The movable parts are preferably protected by an angle cover-plate 32 which maybe stamped out with strengthening corrugations 33. The cover-plate 32 is fastened in place by a screw 36 which passes through 'a slot 37 in the movable handle-piece 27 and by a screw 34 which passes through a slot in the movable shear-blade. In this construction it will be seen that the geared connection reverses the relative motion between the operating piece and cutting blade, so that when l the handles are brought together the shearblades will close. In the use of this form of shears also the weight is carried substantially by the fixed handle, and as the entire construction is comparatively light, the shears may be operated with very little labor to trim the edges of lawns or grass-plots in a direct and efficient manner.

In some cases, instead of gearing the movable shear-blade to the handle so as to secure a direct cutting action, it is desirable that the" movable shear-blade should be operated by a click or pawl motion so that the cutting action will be produced by spring pressure. A construction for doing this is shown in the second sheet of drawings. As illustrated in Fig. 7, an angle-piece or support is provided with a horizontal part and an upwardly extending angle part 41 Carried by the horizontal part 40 is the fixed shear-blade 42 having a strengthening groove or corrugation 43 and preferably a serrated or saw-toothed cutting edge. Extending up from the inclined part 41 is a handle-tang 44 for receiving the fixed handle 60. The movable cutting blade 45 is pivoted on a screw 46 threaded into the horizontal part of the anglepiece. The parts as thus far referred to are of substantially the same construction as the corresponding parts of the form of shears illustrated in the first sheet of drawings. In order to operate the movable shear-blade by spring pressure, the movable shear-blade is provided with a pin 47 and the fixed shearblade with a pin 48 extending up through a slot in the movable shear-blade. Engaging the pins 47 and 48 is a strong bent spring 49 which will normally hold the shear-blades closed. In order to operate the movable shear-blade so that the same will be released and allowed to close under spring pressure, the movable shear-blade is provided at its rear edge with gear-teeth. Meshing with the gear-teeth of the movable shear-blade 45 are gear-teeth of an operating sector 50. The sector 50, as shown in Fig. 10, is provided at one edge with a turned down flange 51. The sector 50 is pivoted on a pivotscrew at a perforation 53, and also pivoted on v the screw is a handle piece 54 which is connected to the movable handle 61. Co-oper ating with the sector 50is a spring-plate having a catch 52 for holding the shears open until the handles are nearly closed. The handle-piece 54, as shown in Fig. 8, is provided on its under side with a lug 55 which will force down the spring-plate 52 to release the cutting blade when the handles are closed together. In the use of a pair of shears as thus constructed, the handle-piece of the movable handle will turn the operating sector to open the cutting shears when the handles are spread apart until the parts reach the posi' tion shown in Fig. 7, when it will be seen that the catch 52 will lock the operating sector against return motion. When the movable handle is being swung back to closed position, the shears will remain open until the spring-plate is forced down by the lug 55 of the handle-piece 54. When this takes place, the cutting jaw will be released and will snap to closed position under the force of its spring. In this construction, also, it will be seen that the parts are preferably pressed out of sheet metal forming very light and strong shears which will have the advantage of'quick closing action.

I am aware that many changes may be made in the proportions and shapes ofparts by those who are skilled in the art without departing from the scope of my invention as expressed in the claims. I do not wish, therefore, to be limited to the particular forms of shears which I have herein shown and described, but

What I do claim and desire to secure by Letters-Patent of the United States is 1. As an article of manufacture, a pair of shears comprising an angle-piece having a horizontal part with fixed cutting blade, a rearwardly inclining part with fixed handle, a movable cutting jaw pivoted on the hori zontal part of the angle piece, a movable handle pivoted on the inclined part of the angle-piece and means connected with the handle for operating said movable jaw.

2. As an article of manufacture, a pair of shears comprising an angle-piece having a horizontal part with fixed horizontal cutting blade, a rearwardly inclined part with fixed handle, a movable horizontal cutting jaw pivoted on the horizontal part of the anglepiece, and a movable handle pivoted on the inclined part of the angle-piece, said movable cutting jaw and movable handle having a reverse motion connection causing the cutting jaws to open when the handles are separated.

As an article of manufacture, a pair of shears comprising an angle-piece having a horizontal part with fixed horizontal cutting blade, a rearwardly inclining part with fixed handle, a movable shear-blade pivoted to the horizontal part of the angle-piece on a vertical axis and having gear-teeth, and a movable handle pivoted on the inclined part of the angle-piece with gear-teeth meshing with the gear-teeth of the movable shearblade.

4. As an article of manufacture, a pair of shears comprising an angle-piece having a horizontal part with fixed shear-blade, a

. rearwardly inclining part with fixed handle,

a movable shear-blade, a vertical pivot-bolt with spring-washer thereon for mounting the movable shear-blade on the horizontal part of the angle-piece, and a movable handle pivoted on the inclined part of the anglepiece and connected to operate the movable shear-blade.

5. As an article of manufacture, a pair of shears comprising an angle-piece having a Ioo horizontal part with fixed shear-blade, a movable blade open, a spring for normally rearwardly inclining part with fixed handle, a movable shear-blade pivoted on the horizontal part of the angle-piece, and an angular cover-plate fastened on the angle-piece and protecting the working parts.

6. As an article of manufacture, a pair of shears comprising an angle-piece having a horizontal part with fixed shearblade, a rearwardly inclining part with fixed handle, a movable-shear-blade pivoted on the horizontal part of the angle-piece with gearteeth, a movable handle pivoted on the rear- Wardly inclined part of the angle-piece with gear-teeth meshing with the gear-teeth of the movable blade, and a cover-plate fastened to the angle-piece and inclosing the working parts.

7. As an article of manufacture, a pair of shears comprising a fixed handle and fixed shear-blade, a movable shear-blade pivotally connected with the fixed shear-blade, a spring normally closing the movable shearblade, a catch for holding the movable shearblade open, and a movable handle having means for releasing the catch to permit the movable shear-blade to close.

8. As an article of manufacture, a pair of shears comprising an angle-piece having a horizontal part with fixed shear-blade, a rearwardly inclining part with fixed handle, a movable shear-blade pivoted on the horizontal part of the angle-piece and having gear-teeth, a gear-piece pivoted on the inclined part of the angle-piece and meshing with the gear-teeth of the movable shearblade, a spring-plate having a catch holding the movable blade open, a spring for normally closing the movable shear-blade, a movable handle turning with the gear-piece to open the shears and bending the spring to release the movable shear-blade as the handles are closed.

9. As an article of manufacture, a pair of shears comprising a fixed shear blade, a fixed handle connected therewith, a movable shear blade having gear teeth, a gear piece pivotally mounted with respect to the fixed shear blade and having teeth meshing with the gear teeth of the movable shear blade, a spring plate having a catch for holding the closing the movable shear blade, and a movable handle for turning with the gear piece to open the shears and bend the spring to release the movable shear blade as the handles are closed.

10. As an article of manufacture, a pair of shears comprising two shear blades pivotally connected together, a handle for each shear blade, an intermediate piece located between one shear blade and its handle and pivotally connected with said handle, said intermediate piece having means for operating the shear blade, a spring plate having a catch for holding the intermediate piece in such position as to hold the blades open, and means on the movable handle for disengaging the catch from the intermediate piece to allow the blades to close.

11. As an article of manufacture, a pair of shears comprising two shear blades movably connected together, a spring plate having a catch for holding the blades open, and a handle for operating one of the blades having means for disengaging the catch to allow the blades to close.

12. As an article of manufacture, a pair of shears comprising an angle piece having a fixed shear blade, a fixed handle connected with the angle piece, a movable shear blade pivoted on the angle piece, and a cover plate fastened on the angle piece to protect the working parts.

13. As an article of manufacture, a pair of shears comprising pivoted cutting blades, pivoted handles, and a multiplying connection between one of the handles and a cutting blade, comprising a gear segment connected with the handle, and a gear segment with shorter radius meshing therewith and. connected with the blade for securing a different angular movement of the cutting blade from the angular movement of the handle which operates the same.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

GEORGE P. TAYLOR.

Witnesses.

PHILIP W. SoU'rIIcA'rE, MARY E. REGAN.

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