US553439A

US553439A - George r

Info

Publication number: US553439A
Authority: US
Publication date: 1896-01-21
Anticipated expiration: 1913-01-21

Description

(No Model.) V

G. R. UNKEFER.

THREA-D CUTTER. No. 553,439. Patented Jan. 21, 1896.

WITNESSES: IN VENTOH W 15. mm. flflwyv 4M1; ATTORNEYS ANDREW B.GRA)|AM. PHOTOUTNQWASHINGIUN D C UNITED STATES PATENT OEEIcE.

GEORGE R. UNKEFER, OF CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO HARRY J. MOKINNIE, OF SAME PLACE.

TH READ-CUTTER.

SPECIFICATION forming part of Letters Patent No. 553,439, dated January 21, 1896.

Application filed May 16, 1895. Serial No. 549,583. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE R. UNKEEER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga,State of Ohio, have invented certain new and useful Improvements in Thread- Cutters; and I do hereby declare the following to be a full, clear, and accurate description of my said invention, such as will enable others skilled in the art to make and use the same.

The object of my invention is a simple, inexpensive device that can readilybe attached to a spool of thread and be used for cutting the thread, and as a convenience save breakin g the thread or using a separate instrument with which to cut the thread, and which will not interfere with putting the spool over a spindle on a sewing-machine while the thread cutter is in position in the spool.

My invention consists in the construction and combination herein described and defined in the claims.

In the drawings, Figure 1 is a perspective of my improved thread-cutter. Fig. 2 is a front elevation of the same. Fig. 3 is a side elevation. Fig. 4: shows the same in position in a longitudinal section of a spool, and Fig. 5 illustrates the form of blank from which my device is formed.

In the manufacture of my invention, I first cut a blank substantially of the form illustrated by Fig. 5, from a piece of sheet steel or other metal. Said blank A is rectangular, with preferably rounded corners to relieve it of any sharpness, to avoid cutting the hands of the user and to give the device a neater appearance. Proj ecting from the body A is an arm A having a turned end A. The sharp angle a forms the cutting-notch. The body part A is bent to the form of an open split cylinder of a larger diameter than the diameter of the hole in a thread-spool, and forms an expansible spring to hold the cutter to the spool with the cylindrical spring open through from end to end, so that a spool with the cutter in position may be put over a spindle on a sewing-machine.

'When the cutter is in use, the cylindrical body part A is compressed by the hand so that it will enter the hole in the spoolB. The expansibility of the cylinder will keep the cutter in position in the spool. The arm A is bent outwardly from the end of the cylinder A, and the bent end A is slightly curled upwardly, as shown. To cut a thread, it is unwound from the spool B and drawn over the cutting-notch a.

What I claim as my invention, and desire to secure by Letters Patent, 'is-- 1. A thread cutter, the body of which consists of an expansible split cylinder to enter the hole in a spool, with an arm having an upturned end projecting from one end of the split cylinder, the angle of the arm and its upturned end forming a thread cutting notch, substantially as described.

2. A thread cutter, the body of which consists of a spring open through from end to end to pass over a sewing machine spindle, with an arm having an upturned end projecting from one end of the spring, the angle of the arm and its upturned end forming a thread cutting notch, substantially as decribed.

In testimony whereof I affix my signature, in the presence of two witnesses, this 13th day of May, 1895.

GEORGE R. UNKEFER.

Witnesses:

J. A. OSBORNE, II. J. MGKINNIE.