US80371A - steward - Google Patents

Description

A. STEWARD. RUFFLING ATTAOHMENT FOR SEWING MACHINES.

Patented July 28, 1868.

I) I Jne/izor TO ALL WHOM IT MAY CONCERN:

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Letters atent No. 80,871, dated July 28, 18689 IMPROVEMENT m nnrrnme-arrncumnm FOB. snwme-menmns. j i

'fiI-lg: 5mm: ttlttl'ti! In in this: fitters mom mm' mating psrt'nttlgt m 130 it known that I, A. SrEwARD, of Plano, in the county of Kendallpand State of Illinois, have invented a. new and useful Improvement in Guides for Rufllers in SewingMachiues; and-Ida hereby declare that the following is a full, clear, and exact description of the construction and ope'ration ofthe some, reference being had to the'annexed drawings, making a part of this specification, and to the letters of reference marked thereon,

Figure 1 is a top .view of the eloth-presser of ascwing-machine, with a ruifier and the guide attached. Figure 2 shows a view of the guide as seen from the arrow, fig. 1. Parts lettered as follows:

, A, guide; B, connect ing-arm; C C, rufller; D, needle-hole; E, cloth-presser of a sewing-machine; F F;

lips of guideLH, tongue; 'I I, friction-points.-

I make my guide of three thin strips of metal orother suitable material, placed one above the other."

Between these strips, near one end, I insert two pieces of metal, and then secure thethreestrips and the said inserted pieces all firmly together, by soldering or otherwise, thus forming what I call the body of" the f guide, while th'ethree strips form the pro-ngs, with the two interstices between them. These intersticesare' of suflicient width to allow the cloth to pass freely, ex'cept at the point hereafter described. The two outside prongs, F F, I term lips, and the centre one, H, a tongue. Upon each side of the tongue H, and near its point,- i

is a small prominence, as shown at I I, which I term friction-points, of sufiicient height to nearly or quite come 2 in contact with their approximate lips, to in-sur'e a suitable amount of friction upon thecloth at this "point, in

its passage through the guide. The same result may be attained by any other device, such as attach'ingthese prominences to the lips, or by incurvating the lips at the point in question, to bring them to proper proximity to the tongue. 'But whatever the'form may he, the cloth must he. allowed to pass freely throughthe interstices,

. except at this point. The necessity for two interstices in this guide arises from .the fact that, in rufliing, two 5 pieces of cloth aroused, one of which mnsttravel faster than the other, thus. requiring'separate tracks, as, if'- both passed through thesame interstices, both would move together by their friction upon each other.

I now connect this guide to the rufl'ler G, by .means of thearm B, asshown in fig. -1, (or the upper lip,- arm .13, andthat part'of the ruiiler to'which it is attached, may be made of one piece.) Its relation to'the rufi'er is now such that when two pieces of cloth are passed through the interstices inthe guide, their edges may pass'] far enonglibeyond the needle-hole D to insure a sufiicient depth of scam.

Now it is known that if a small piece of cloth be placed beneath the clothresser of an ordinary sewingmachine, and the machine is put in motion, theirction of the feeding-apparatus will'morethe cloth,unohstructed,

forward in a"s'traight'line; but if resistance be placednpon the cloth, upon the right-hand side, to retard it at that point, theapproaching cloth will be inclined opci'ation in the adaptation of my guideto its work..

towards the left. Italic advantage of this principle and Now suppose twn pieces of cloth are inserted .nto the two interstices described,'and underneath the cloth l presscr,'in the position indicated by the space within the dotted lines G, and motion be given to the,ma china, f

the-ploth is propeliedby"thej'feedfbeneatli'itfundefthe dotted line L, in the direction of the arrow.

New, in its passage through the guide, theclothpasses without, perceptible hindrance, except at the friction" pointsI I, and the positionjof this friction, which is indicated by the dotted lin'e K,.heing at the right, in referonce to-tho forward'movenient of tho' cloth, of the feed-line L,.,the tenilency is to swing thojc'l'oth which is i approaching the needle, towards the left, and. widen the seam, but the body of the guide prevents i'ts'going'too the body of the g id e, and not enough to disturb the proper feeding. Thus the draught of -the feedin fur-pi The friction of these points is madeonly snflicient to inclinc'the edge of the cloth to run in contaetwitli apparatus,--l in conn o'tion with the friction at the' line K, keeps the cloth properly in the guide, and secures "a erfect scam without the touch of the operator.

This guide is useful in ending an ordinary seem, (in. which case it can be adaptedto machine, and on'e of the lips be dispensed with, and both pieces of cloth be passed through oneopeningfls with other guide:

but in ruining, where one thickness of the fabfic mov'es fastei than the other, thus rendering the guidihg difficult, it becomes a necessity.

Whit I claim as my invention, and desire to'secure by Letters Patent, isv i 1 In combination with the presser-foot andthe ruflling-u-ttatehment, the ghide A, having the lips, tongue,

and friction-points, aubstahtielly as described. i

l A. STEWARD.

Witnesses:

Joan H. Lown, O. L. NORTON.

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