US655053A - Treadle. - Google Patents

Description

Patgnted July 3|, |900.

E. BURKE.

TREADLE.

(Appumion mea June e, 1899.)

(No Model.)

W 'MF/76g TATESI Al-)nTENT OFFICE.

EDWARD BURKE, OE NEW YORK,N.Y., AssIcNoR To THE UNION SPECIAL sEwINCr MACHINE COMPANY, on CHICAGO, ILLINOIS.

TREADLE.

SPECFICATLON forming part of Letters Patent No. 655,053, dated .uly 31, 1900.

Application led June 6,1899. Serial No.n7l9 .620. (No model.)

T0 a/ZZ wir/017e tm/ay concern,.-

Beit known that I, EDWARD BURKE, acitizen ofthe United States,residing at the city of New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Treadles, of which the following is a description, reference being had to the accompanying drawings and to the letters of reference marked thereon.

My invention relates to treadles, and particularly to treadles for sewing-machines and the like, the especial Object of the present invention being to provide a treadle for use in connection with a Union Special ruffiing-machine, adaptable by a slight movement of the foot sidewise to throw either the presser-foot or the ruffling mechanism into engagement with the treadle, so that a downward pressure of the foot will either raise the presserfoot or throw the rufiiing mechanism into operative engagement with the driving-shaft.

The invention therefore consists of a treadle having means for the attachment thereto of operating parts and means for throwing it into and out of operative engagement with said operating parts.

Secondly, the invention consists of a treadle having an arm in engagement with an operating part of the machine andanother arm in engagement with a second operating part of a machine and a part movable on the treadle adapted by a sidewise movement of the foot to engage one or the other of said parts alter-` nately.

Finally, the invention consists in the matters hereinafter described, and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in which A Figure l is a perspective view of a sewingmachine treadle embodying my invention. Fig. 2 is a plan view, partly broken away, and a part of that remaining being shown in section; and Fig. 3 is a detail view in elevation of one side of the treadle.

In the drawings, A represents the foot of the treadle, it having the downwardly-projecting lugs B, pivoted on the rod C, passing through the lugs D, projecting upwardly from the base E, adapted to be secured to the iloor,

The, part A is normally held in inclined position to receive the foot of the operator by means of the spring F, set in a hollow coneshaped piece G, forming part of the base E, said spring at its upper end being secured to the under side of the foot part A, the downward movement of the heel part of A being limitedby the stop H.

Projecting from each side of the foot part A, 'near that portion occu pied by the ball of the foot of the operator, are short shafts or pins I, upon which are pivoted arms K K', having eyes Aat their outer ends in which t rings L, towhich are adapted tobe attached the lower ends of chains (not shown) respectively connected to the presser-foot lever and the ruiner-mechanism lever of the sewing machine. The hub M at the inner end of each of these arms K K' is provided with a projec tion N, which limits the swinging movement of the arms K K to an arc of about ninety degrees. Each hub has a slot O, which is adapte ed to be engaged by projections P on the end of a sliding plate Q, in the foot part A of the treadle, thev projection P passing through guiding-openings in the blocks R, secured to the foot part A. This plate Q has upward projections S to engage the sides of the operators foot.

It will be seen that by slight pressure sidewise of the operators foot one or the other projection P will engage the slots O in K or K', and thus hold one of said arms rigid, so that it will move up and down bodily with the part A, and thus draw down on its connected chain and throw the .presser-foot up or the ruftler into action, the other arm being free to turn on its pivot within the limits allowed by stop N, its weight meanwhile keeping it in a horizontal position when the part A is forced down by the foot of the operator.

By this construction it will, be seen that by moving the slide Q to one side or the other the arm connected with the presser-foot or that connected with the rutiiing mechanism will be brought to rigid engagement with the treadle A, and the downward pressure of the foot upon the treadle will then draw on one or the other of the chains and raise the presser roo foot 'r pull the ruliier'mechanism into operative engagement .with the driving-shaft.

It will be'understood that I do not wish to be limited specifically to the application of the invention to a sewing-machine, and, furthermore, various modifications in thecon- ^struction ofthedevic'e may be made ,Without` departureffrom the spirit of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Pat ent, is

1. A treadle or the like having a connection with an operative part of a machine, and` a second'connection'to another operating'p'art of a machine, and a movable 'part on said treadle adapted alternately to engage one'or f the'otli'er of said operative connections; sub

Vstantially as described. 7..A 'treadle for'seWing-machines having stantially as described.

v2. Atreadle having an'arm in engagement movement ot' the foot of the operator to engage one or the other of said arms, and hold it rigid With thetreadle; substantially as described. '3. A treadle provided with parts in operative'engagement with `machine parts, and 'a `movable part on said treadle foralternately Athrowin g said treadle parts into respectively rigid engagement With.the treadle proper, `substantially as described.

4:. A treadle having a foot portion, arms pivoted thereto, and means on the foot portion for alternately engaging vthe arms and .holding them respectively rigid with the foot portion, lsubstantially'as described.

5. A treadle having a foot portion, arms pivoted thereto, and a slide on the foot portion adapted to engage one or the other of vsaid arms and hold it rigid with the foot portion, substantially as described.

6. A treadle having a foot portion, a slide thereon having projections, arms pivoted on 'said'foo't portion and having means to receive the projections to hold one or the other of said arms rigid `with the foot portion, subarms pivoted thereto, one connected to the presser-foot of the machine and the other to the ruftler thereof,`and amovable part adapted to engage one orthe other of said arms and hold it rigid with the treadle substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

' EDWARD BURKE.

Witnesses:

WILBUR L. SWIFT, MILLARD VAN WAGNER.

SMO

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