US502865A - Jacob albert schmidt - Google Patents

Description

Patented Aug'. 8,1893,

(No Model.)

J. A. SCHMIDT. ANIMAL SHEARS.

cUNITED STATES PATENT Gir-rien..

JACOB ALBERT SCHMIDT, OF BARMEN, GERMANY.

ANIMAL-SH EARS.

SPECIFICATION forming part of Letters Patent No. 502,865, dated August 8, 1893.

Application iiled March 17, 1893. Serial No.

To a/ZZ whom 1115 may concern.-

Be it known that I, JACOB ALBERT SCHMIDT, of Barmen, in the Empire of Germany, have invented a new and useful Improvement in Shears, (for which l have obtained German Patent No. 64,966, dated February 2, 1892, and English Patent No. 2,118, dated February 3,1892,) of which the following is a speciiication.

This invention relates to shears having a spring connection between the blades, such shears being especially suitable for sheepshearing but also applicable to other uses.

The improvement consists in a certain construction of such shears hereinafter described and claimed whereby provision is made for taking their blades or cutting members apart for the purpose of separately sharpening the cutting edges. j

Figure 1 of the drawings is a side view of the shears. Figs. 2 and 3 are inside views at right angles to Fig. 1 of the two separated members. Fig. 4 represents a section ,parallel with Fig. 1 of portions of the handles and springs of the shears. Fig. 5 is a view similar to Fig. 4 representing a modification. Fig. 6 represents a section at right angles to Fig. 5, in the line :c x.

Similar letters and numerals of reference designate corresponding' parts in all theiigures.

Each of the two members H H of the shears, comprising a blade and one-half of the 'handle, has its handle end Gor G bent to'form a spring from which there is a straight upward prolongation m or m which serves in the following manner in the example Figs. 1, 2, 3 and 4, for connecting the two members H H To the lower part of the one prolongation fm are firmly secured two hooks o represented as broad-headed studs and in the lower part of the other prolongation m there are two curved transverse slots p which are in the form of arcs of equal radius on opposite sides of a common center. rlhe outer ends of these slots are wide enough for the heads of the studs o to pass through and the inner ends of which are large enough to receive the necks of the said studs but not large enough for the heads to pass through. Near the upper end of 466,436. (No model.) Patented in Germany February 2, 1892, No. 64,966, and in England February 3,1892, No. 2,118.

the prolongation m or m of one member, for instance the prolongation m in the example represented, there is a tenen or projection t" to engage with a notch or slot t in the corresponding portion of the prolongation of the other member to form a snap lock as hereinafter explained. The ends of both prolongations are turned hack as shown at a a to facilitate the separation of the two members as will be presently explained.

' To unite the two members their prolongations m m are brought together face to face with the heads of the studs o o opposite the wider portions of the slots p p as may be understood by reference to Fig. 3 where a portion of the. member I-I is shown in dotted outline placed against the member H. The heads of the studs are then inserted into the slots and the parts are turned to bring the two members directly opposite each other and bring the blades to their proper relative positions for cutting. As the members arrive at this last mentioned position the projection 1l snaps into the slot 'i and so locks the two members against turning while the heads of the studs o o hook over the edges of the slots and so prevent the members from being drawn apart. The shears may then be operated in Vthe same way as shears the blades of which are connected by a single bow-spring. j `To separate the two members for separately grinding the blades the shears are taken one member in each hand and the thumbs placed between the turned ends a a of the prolongations to apply outward pressure to unlock the snap lock 1l t. The members are then turned to the relative positions indicated in Fig. 3 with the heads of the studs o opposite the wider portions of the slots p p and the two members are pulled apart.

In the example shown in Figs. 5 andA 6 the relative positions of the snap lock'fl t" and of the hooks 0 o and slots p .are the reverse of that in the first described example, the hooks andslots being near the extremity of the prolongations mm and the. snaplock i o" below. In this last described example moreover instead of the hooks o being studs hav- IOO Io ranged curved slots on opposite sides of a oommon center and that of the other member having hooks to pass through and overlap Said slots, and the two said prolongations being'provided With a snap lock, substantially as herein set forth.

JACOB ALBERT SCHMIDT.

lVitnesses:

FREDK. HAYNES, F. HOWARD TITLAR.

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