US690400A - Thread-cutting attachment for spools. - Google Patents

Description

"J, 500,005.3.' THREAD V{.'UTTlNl ATTACHMENT FOR SPOOLS.

(Appumign med Ngv.' 2s, i900.)

(No Model.)

Cl El] C" Witnesses UNITED STATES PATENT Fries.

THREAD-CUTTING ATTACHMENT FOR SPOOLS.

SPECIFICATION forming part of Letters Patent N o. 690,400, dated January 7, 1902.

Application filed November 23,1900. Serial No. 37,439. (Nomodel.)

To a/ZZ whom it may concern:

Be it known that I, JOHN FERDINAND CORDES, a citizen of the United States, and a v tachment to spools, whereby the thread after being unwound from the spool may be cut off at any required length; and the object of my invention is to so cheapen the construction of the device that it may be brought into extensive use and to provide such device with a knife secured in a novel manner to the shell Without soldering or being held in place by separate fastening devices, which are not desirable, as will hereinafter appear in the accompanying detailed descriptionof its construction and claims, and with reference to the accompanying drawings, illustrating my invention, wherein- Figure l is a perspective view of a spool of thread,showing my improved attachment connected thereto; Fig. 2, a perspective view of the attachment removed from the spool; Fig. 3, a vertical enlarged section of the attachment in the same plane with that of the knife; Fig. 4, a correspondiugly-enlarged side elevation of the knife detached, and Fig. 5 a correspondingly-enlarged side elevation of a plate of sheet metal stamped out toform a blank for the barrel of the attachment.

The thread-cutting attachment consists of a vbarrel A, secured in a suitable manner at its upper end to a cap B, which latter extends sufticiently beyond the diameter of the barrel A to completely protect a knife-blade C, which passes diametrically through said barrel, at the upper end thereof, and projects beyond the same and is provided at its outer ends with sharpened edges c c2, against which the thread may be wrapped and drawn to sever it any required distance from the end thereof.

The barrel A of the attachment also has a dished disk D, with a central hole therein through which the barrel passes and is made to lit tightly thereon and is preferably secured Yone-third the widt h toward the middle thereof,

and the ends of the said blank have vertical portions aid4 cutaway therefrom respectively at the upper and at the lower ends of said blank and at corresponding distances toward the middle thereof and opposite to the said slits a a2', thus providing a blank which when made cylindrical will provide a closed slot c3 upon one side and a split slot c4 diarnetrically opposite thereto and upon the open side of the barrel, thus to receive the knife C freely through the closed slot and embrace and bind the said knife upon the'opeu side of the said barrel when the disk D is forced thereon, and thus securely clamp the knife and hold it in a fixed position below the cap B without the employment of rivets or pins and without the use of solder, which would he slow to apply, and the heat employed thereby would draw the temper of the knife. The knife when thus held may be easily removed for regrinding it by withdrawing the barrel from the hole in the disk. The lower slits a2 01,4 a5 CLG will give freedom to the lower end of the barrel to admit of its being forced into the hole fofa spool F and expanding therein sufficiently to tightly hold the attachment to the spool, and when the lat-ter is pushed therein until the disk D rests upon the top of the spool the end of the thread after being cut may be drawn between the disk and the end of the spool and be securely held thereby.

The cap B may have a central hole therein (not shown) to allow the spindle of a spoolholder to pass completely through the attachment and may consist of a solid' ring driven onto the split upper end of the barrel and fitting tightly thereon and will be thus lheld without the use of solder.

The several parts composing the attachment may thus be stamped out from sheet metal very cheaply and assembled and secured together so rapidly that the cost of the same is so little that the name of the manufacturers may be stamped in a suitable manner upon them, and they may be given away for advertising purposes.

The thread is easily and quickly severed the thread loosely a sufficient number of times around the upper end or neck of the barrel, between the cap and the disk, and against the ends of the knife until a sufficient length of thread is left at the end thereof, and the thread is then drawn tightly against the knife and severed.

I claim as my invention and desire to secure by Letters Patent- 1. A thread-cutting attachment for spools comprising a barrel, adapted to it into a spool-hole, a cap at the upper end thereof, a knife secured diametrically upon said barrel to project therefrom at its ends, and a disk JOHN FERDINAND CORDES.

Witnesses:

C. H. SOHAFER, WM. H. ROSEGRANS.

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