US327092A - Eichaed g - Google Patents

Description

(Model) B. G. LEWIS & s. E. MOSHER;

SHEARS.

No. 327,092. Patented Sept. 29, 1885.

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UNITED STATES ATENT OFFICE.

RICHARD G. LEWIS AND SAMUEL E. MOSHER, OF GHILLICOTHE, OHIO;

SAID MOSHER ASSIGNOR'TO SAID LEWIS.

QHEARS.

SPECIFICATION forming part of Letters Patent No. 327.092, dated September 29, 1885.

Application filed Februaryfil, 1884. (Model.l

To all whom it may concern:

one audits handle the lower one, and adapted Be it known that we, RICHARD G. LEWIS for two or more of the users fingers.

and SAMUEL E. MOSHER, both of Ghillicothe, Ross-county, Ohio, have jointly invented Im proveinents in Shears, of which the following is a specification.

Our invention is directed to a construction of shears or scissors which combines efficieu'cy' and ease of operation with economy and cheapness in manufacture, and,fal th ough in someof its useful characteristics applicable to shears in general, is more particularly designed for and is here illustrated by apair of shears having one or more separable or movable blades.

vIn the accompanying drawings, Figure 1 is a perspective view of a pair of shears embodying our invention. Fig. 2. shows the blades detached. Fig. 3 is'a longitudinal section of the outer end of a blade and portion of the 20 jaw r holder. Fig. 4 is a transverse section of the same. Fig. 5 is a section on the line 5 5, Fig. 1. Fig. 6 is a similarsection representing a modification. Fig. 7 represents our guard. Fig. 8 is a diagrammatic-a1 top view of our shears, to show the lateral non-alignment of the pivotal and cutting planes. Fig.9 is a diagraininatical side view to showthe vertical non-alignment of. said planes.- Fig. 10 is a diagram to show the office of our guard when the shears are used for clipping purposes.

A and B irespectivelyv represent the two jaws, articul ted to one another by a pivot, G, and having grooved. backs 'or holders D extending "to near the point of the shears, and which receive and firmly grip the rear edges, e, of blades or icutters E, which consist of thin plates of steel, whose form and'that of the holding-jaws are such as to combine eificiency of action when in use with capacity for ready detachability for sharpening or other purpose. The parts of the jaws about the-pivot 0 are given the form of circular disks F of large diameter, in order to secure absolute rigidity of jaw and accuracy of cut. The portions of the jaws on the sides of the pivot remote from the cutting-blades are formed into convenienthandles, G.

Of the two jaws the jaw Ais in use customarily thelower one, and its handleconse- 5o quently the upper one and adapted to receive the users thumb, while the jaw B is the upper Bothhandles are curved considerably upward, as represented, in order to be, when in use, well clear of the cutting-board.

A lateral offset, H, in the jaws betwejenthe pivot'O and the bladeihe'els', and preferably immediately in rear of the latter, and such as l to place the pivotal plane 00 an laterally out of '60 alignment with and to the right hand of the cutting-plane y y, and the articulating-pivot O vertically out of alignment with and above the cutting-edges, enables passage directly backward. of the separated goods. Such direct '6 5 passage is of great importaucein the shearing or cutting of very stiff or refractory objects, such as thick cloth, duck, serge, tar-board, tin plate. 85c.

The articulating member or pivot 0 being located considerably out ot'alignment with and above both cutting edgessecures a very shearing or carving action of the two edges upon the goods. v One or both of the points'or advancing ends 5 e of the'blades extend slightly beyond the backs or holders, in order to facilitate insertion of such point in the goods and to make easy such operations as'ripping, piuking, 850.

Each blade has the represented ap'proximately-triangular form, and each is armed on its rear edge,.nearits point, witha spur,'J, whose oblique edge j engages behind a pin or keeper, K,.in the jaw, and each blade has on that part of its inner face diagonally remote from the spur J a stud, L,.that engages within an orifice, l, in the supporting-jaw, which, for that purpose and to aii'ord lateral support to the blades cutting-edge, is widened, as at a, in direction of the other jaw, in the manner 0 shown. The sidesof the spur J also fitting tightly within the groove or opening d of the jaw co-operate with such widened portion a in preventing lateral deflection of the blade. This construction makes it possible to secure rigidity of blades without making the jawbacks so thick as to be clumsy and of incon- .venient weight and bulk.

To insure the snapping of the inner corner of the biadefirinly'against the jaw where its stud L engages in the orifice lot the jaw, said blade may be slightly sprung or curved toward the jaw, as shown in Fig. 5; or'secure retention of these parts to one another may be obtained by giving such stud the form of a screw, L, whose head Zmay occupyacounterboredorificein the blade, and whose threaded portion may screw into a correspondinglythreaded orifice in the jaw, as in Fig. 6.

We may associate with the above'featuresor may use independently, the following devices, to wit:

Secured by pivot M'to one of the jaws is a stop, N, which may either take the position of inaction, shown by. dotted lines, in l which case thejaws are capable of being opened to their full extent, or may be thrown forward so thatthe head it of said stop shall occupy' the space 1) between the hingeshoulders of the two jaws, or between a shoulder on one jaw and a lug, b, on the other jaw, so as to limit their opening capacity when desired.

The construction of the parts is such that when the stop N is th rown back the jaws can be separated sufficiently to enable detaching or changing of one or both blades for insertion of function is to prevent too close cutting to the hide or scalp when used for sheep-shearing or hair-cutting. Such a guard may be applied to one blade, as here shown, or to both blades.

, A pair of shear-blades adapted for scallop-' ing is alluded to above, but not specifically de scribed, being-reserved for description and claimin an application shortly to be filed.

We have illustrated our invention by'a 'shearsadapted for right-hand use; but the invention 'is manifestly equally applicable to a shears adapted for'left-hand use, all the parts being of course'then reversed-right for left" and left for right, the pivot 0 being to the left.

We claim as new .and' of our invention 1. lhe combination of a grooved jaw having an opening, d, awidened portion, a,formed with an orifice, l, and a keeper,'K, and the blade E, formed with a spur, J, occupying the opening, and a stud, L, occupying the orifice, as set forth.

2. In shears, the pivot 0 above and to the right of the line of the cutting edges, as and for the purposes set forth.

3. In shears, the combination, with jaws having a lug or stop to limit their opening, of

the reversible stop N, pivoted to one of the jaws, and having a head, it, to occupy the hinge-opening, as set-forth.

.4. A shear-blade formedof a thin ,plate of steel, E, for insertion'in a grooved, jaw and formed with a point, e, armed on its rear edge with a spur, J, to receive the end of a jaw, and a stud at its rear end, by which the blade is retained at' the inner end of the jaw, asset forth.

In testimony of which invention we hereunto set our hands. RICHARD G. LEVVIS SAMUEL E. MOSHER. 'Atte 5t:

H. W. WOODROW, WM. EDGAR Evans.

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