US1660340A - Cloth ripper - Google Patents

Description

Feb. 28, 1928. I I K. KEHETlAN- 1'660'340 CLOTH RIPPER Filed July 23. 1925 Ir a:

m 'ENTOR.

3 KAaPu Kean/AN Patented Feb. 28, 1928.

1 UNITED STATES KASPER KEHETIAN, or DETROIT, MICHIGAN} CLOTH RIPPER.

Application filed m 23, 1925. Serial No. 4 5,724. I

of the fabric while the operator rips the other end and stretches it taut during the ripping operation.

To provide a ripping device of this class which may easily and quickly be used for ripping the stitches on apiece of fabric is another object of the invention.

Another obj ect-of the invention is the provision of a ripping device of this class having a detachable blade and provided with adjustment means for accommodating blades varying in length.

Another object of the present inventionis the provision in aripping device of this class of a guide finger for entering the seam to be ripped for guiding the cutting member against the stitches.

7 Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts hereinafter described and claimed.

The invention will be best understood from a reference to the accompanying drawings which form a and in which,

Fig. 1 is a side elevational view of the ripping device,

Fig. 2 is a fragmentary sectional view taken on substantially line 22 of Fig. 1,

Fig. 3 is a fragmentary side elevational view showing the ripping device applied to a piece of fabric in operative position,

Fig. 4: is a sectional view taken on substantially line 4.& of Fig. 1.

In order to effect a rapid, safe and easy ripping of threads, I have provided a handle 20 provided on its upper surface with a slot 21 as shown in Fig. 2. Projected through the slot 21 is a screw 22, a suitable washer 23 being positioned over the slot 21. The screw 22 is securely fastened to a slidable adjusting bar 24. The lower end of the handle is extended as at 25 and curled upwardly at its end as at 26. This upwardly curled end 26 is extended to provide a guide finger 27, which, when the device is being'used for ripping a seam or the like, is adapted for inserpart of this specification,

tion into the seam to serve as a guide member for the cutting element. Projecting upwardly fromthe portion 25 are the threaded studs 31. Positioned on one of the studs 31 is a cutting element 28 having its cutting edge faced upwardly toward the end of the guide finger 27. As shown'in Fig. 2, the opening in. the cutting element 28 through which the stud 31 projects is enlarged to permit a slight movement of the cutting element relatively to the stud. Inthe manufacture of these blades or cutting elements 28, it is necessary that they be formed: from a high grade steel and provided with a razor-like edge. In the manufacture of these blades it is difficult to provide blades of a uniform length, and I have provided a means for accommodating blades varying slightly in length. When'the blade is positioned upon the stud 31, the slidable bar or adjusting member 24 may be, upon loosening the screw 22 slightly, slid forwardly so as to push the -outer end edge of the blade into close engagement with the :upturned portion 26. This engagement of the outer edge of the 1 blade with the upturned portion 26 is desirable in order to prevent the entry of the thread behind the blade. After the blade has been engaged with the upturned portion 26, a tightening of the screw 22 will then bind the blade in this engaging position. A plate 29 is adapted for positioning on the studs 31. This plate 29 serves to retain the blade or cutting element 28 in close engagement with the portion 25 of the handle so as to prevent the rising of the blade from the handle when in use. The shoulder 29' prevents a turning of the blade on the stud 31. Suitable nuts arethreaded upon the studs to retain the plate 29 in clamping engagement Fig. 3, the plate 29 is formed with an arcuate edge 30, the portion 25 of the handle is also formed at one edge to correspond with the curved edge 30, the plate 29 being at this portion reduced in thickness.

In Fig. 3 I have shown the application of the device for ripping a seam 33 which is formed on a strip of fabric 32. The guide finger 27 is inserted into the seam so as to lie at the innerside of the threads 34. A

sliding of this ripping device alongthe seam will then elfect a severing of the threads and rip the seam open.

The ripping device is a simple one by which the ripping may be quickly and easily effected withoutdanger of cutting the fabric.

It is also evident that the blades may be removed and replaced When necessary so thatmodifications as come" Within the scope of the appended claims.

Havingthus described 111:)" invention; what I claim as new anddesireto secure by Betters'Patent is: g I

'1. A ripping device of" the elass'described, comprising adiandle; mflange on one e'ndof saidhandle; a guide linger projecting out- Wardly fromsaid flange; a-eutting element carried by said handle andadap'tedfor normallylying in engagement at oneedge with said flange; and slidable means mounted on said handlefor retaining said blade in engagement with said flange 2i A rippin device of the class described, comprising a andle; a flange on one edge of said handle; a guide finger projecting outwardly from said flange; a cutting element carried by said handle and normally in engagement at -one of its end edges with said flange, the cutting edge of said cutting, element being directed in the direction ofthe extension of said guide finger; a slidably movable bar mounted .on said handle and adapted for movementinto engagementwvith said cutting element for: retaining tlie same a in close engagement with saidflange; and a plate mounted on said handle" for retaining said blade in operative position thereon. I

In testimony whereof I have foregoing specification. r

V KASPER KEHE'DI-A'NE signed the

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