US23079A - Improvement in hemm ing-gui des for sewing-machines - Google Patents

Description

` WI -CLEMMONS vHemmer for Sewing Machines.

No. 23,079, Patented March 1, 1859;

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UNrTED STATES ATENT Erice.

`WM. CLEMMNS, OF NICHOLASVILVLE, KENTUCKY.

Specification forming part of Letters Patent No. 23,079, dated March 1,` 1859.

To all whom it 13mg/ concern:

Be it known that I, VILLIAM' CLEMMoNs,

of Nicholasville, in the county of .Iessamine day of February, 1856, a hemming attachment is described, which is at present modified and applied by the Wheeler 85 Vilson Sewing-Machine Company, in some respects very closely resembling mine, and which is of great utility for hemming purposes. The hemmer of Chapin has its objections, one of which is that the folding under of the hem and the running of perhaps an uneven edge under the pad, together with the accumulation of a hem or roll of uncertain thickness under one side of the pad, has the effect to render the operation .of feeding rather uncertain7 and in many cases difficult with the construction and arrangement of parts which are now known to the public, and this difficulty is made more formidablefrom the fact that the pressure-pad has to be recessed'away from the feeder to prevent the teeth of said feeder from being dulled by the severe abrasion to which the heavy pressure `requiredupon the pressure-pad would otherwise subject them.

My said invention is intended to obviate this difficulty; and it consists in the attachment of a secondary spring in the groove in the hemming attachment, into which the feeder works for the purpose of holding the cloth down to the feeder without reference to the thickness of the hem, as hereinafter more fully set forth.

My invention is represented in the drawings which accompany this specification, as follows:

' Figure 1 is a side elevation of my hemming attachment, showing it attached to an ordinary pressure-pad of a sewing-machine, such as is commonly manufactured by the Vheeler du Wilson Sewing Machine Company. Fig. 2 is an elevation of the same parts, the parts at the right hand of Fig. 1 being represented toward the observer in Fig. 2. Fig. 3v is an under side view. Fig. 4 is a plan. Fig. 5 isa section of a part 'of the hemmer, showing the secondary spring which keeps the cloth down to the feeder. i A is the ordinary pressure-pad of a Wheeler 8b Vilson sewingmachine, the general construction and Vmodeof attachment to the machine of which is the same as that generally employed.

B is the hemming attachment, or, rather, the main piece or stock of it, to which its smaller parts are attached. This is made with a groove for the hem, and a spring-guide, and point a and b, to give the edge of the cloth a spiral direction to fold the hem, the same as the hemmer of Chapin, manufactured by the Wheeler t Vilson Company, above mentioned. So far my hemmer does not, except in its mode of attachment, differ very essentially from the preceding one o f the parties above named. l

I so construct my attachment that it may be readily attached to the ordinary pressure-pad of the sewing-machines above mentioned without the necessity of removing any of theparts. The general idea of the details of construction adopted may be gathered from a glance at Fig. 1. The attachment is so formed as to fit the under side of the pressure-pad nearly thewhole length of the under face of said pad. A slot is iiled in the end of the said pressure-pad to receive the pin d, which fits into it to secure the hemming attachment from turning. The other end of the attachment is secured and the Whole of it kept up in place by the thumb-screw D, which is tapped into the shank ofthe pressurepad just above where it rises in an elbow from the cloth to unite with the parts above it. This attachment is very plain and simple and further description is unnecessary. It enables the operator to remove or replace thc hemming attachment in a moment.

To prevent the cloth from getting away from the feeder, while at the same time the points of the teeth of said feeder are secured from the heavy pressure of the pad which holds the cloth upon the bed, and to secure certainty of action without reference to the thickness of the hem, I attach a, spring, E, to the hemmer in the groove above the feeder, as shown in the drawings. A piece of heavy lever Watchspring is quite sufficient for the purpose, and exerts a slight pressure, which holds the cloth down to the feed, While at the sanie time it l tutes my said invention; and which I claim as acts independently to a certain extent of the action of the pressure-pad.

Having th-us fully described my invention, I Wish it distinctly understood that I make no claim to the general construction of the heinmer7 or any portion of the devices for forming and turning over the hein. Neither do I claim forming,` a recess in its under side to relieve the teeth of the feeder, as this has already been done.

The particular improvement which constihaving been originally and first invented by me isv rIhe combination, with the heminin'g attachnient7 of the spring E, placed in the groove under the pressure-pad, substantially as described for the purpose set forth.

WILLIAM OLEMMONS.

Witnesses.

WM. S. Scorr, W. BROWN.

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