US151224A - Improvement in sewing-machine fan attachments - Google Patents

Description

t 2Sheets--Sheet1. n.1AcKsoN et LL u; SMITH.

` S'ewing-Machinefan Attachments. NO 151224, APatented May 26, i874'.

2Shee`rs-Sheet2. R. JACKSON & L. 0. SMITH.

ASewing-Machine FanAttachmentsL N0.15|,224. Patented May 26,1874.

UNITED STATES.

PATENT OFFICE.

RICHARD JACKSON ANI) LEONARD O. SMITH, OF PHILADELPHIA, PA.

IMPROVEMENT IN SEWING-MACHINE FAN ATTACHMENTS.

Specification forming part of Letters Patent No. 151,224, dated May 26, 1874 application filed April 21, 1874.

To all whom it may concern:

Be it known that we, RICHARD JACKSON and LEONARD O. SMITH, both of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Fans for Sewing-Ma chines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification, in which- Figure l is a side elevation of our improve ments applied to a sewing-machine. Fig. 2 is a front view of a presser-bar with rod attached.

Figs. 3, 4, and 5 are views of modilications.

The object of our invention is to provide an improved combination of devices for attaching a fan to a sewing-machine, whereby the niotion of the fan will be similar to that ordinarily produced by hand, the stroke or sweep being also regulated and controlled. The nature of our invention consists in the peculiar combination and construction of parts, as hereinafter fully described.

In carrying our invention into effect we afx to the face ofthe machine, by means of a clamp, a stationary arm whose remote end is provided with a joint to which the handle of an ordinary fan is secured by another clamp. The lower section of this latter clamp is extended to form a rod on which nts a sleeve having a jointed connection witharod that is attached to the needle-bar of the machine. Vhen the needle-bar moves up and down the attached rod has a vertical motion communicated to it, which gives a corresponding vibratory motion to the fan-clamp rod and fan. The connecting-link may be slid on the needle-bar rod to adjust the stroke or sweep of the fan, accordingly as it is secured nearer to, or farther from, the pivot on which the fan vibrates.

Referring to the accompanying drawing, A represents the face of a sewing-machine, and B the needle-bar thereof, having a vertical motion in said face A. D represents a stationary arm, braced, if desired, as shown at d, and secured, by a clamp, C, to the face A.

The remote end of the stationary arm D is bent to form a vertical standard, E, to the upper extremity of which is secured a jointed clamp, F, for holding the fan L. This clamp F is made in two sections, fand f', the latter being extended, as shown, to form a rod. G is a rod secured to the needle-bar by any suitable means, preferably by a clamp which em braces the acorn by which the needle-bar is usually surmounted. This rod G should be bent, as shown, to clear the presser-bar of the machine. H represents a joint or standard, whose lower extremity is a slide by which it may be moved along the rod Gr for purposes o f adjustment, its upper end being jointed to the sleeve I. Both the sleeve and slide may be fastened on their respective rods by a setscrew.

A modification of the foregoing construction is shown in Fig. 3, wherein, instead of the rigid standard E, having a joint at its upper extremity, we use a spring, K, which may be set to exert its returning power on the fan L either upwardly or downwardly, as may be desired.

Another modilication is shown in Fig. 4, wherein the bar Gr is fulcrumed at g.

This inventionis designed principally for that class of machines adapted to manufacture ing purposes, being those generally in which. a needle-bar is employed. 1t may, however, with a slight modification within the spirit of the invention, be adapted to what are ordia narily known as domestic sewing-machines,

vor those in which a needle-arm, having a vi- 3. The combination of the rod G, attached In testimony that We ciaimthe foregoing` We to the needle-bar or need1e-arm,with the conhave hereunto set our hands this 18th day. of necting` sliding` joint, substantialbT in the main April, 1874.

ner and for the purpose herein set forth. RICHARD J AGKSON. 4. The combination of the stationary arm LEONARD O. SMITH.

D, terminating in a joint or spring, the rods Witnesses:

f and G, and the connectinglink H, substan- M. DANL. CONNOLLY,

tially as shown and described. EUGNE P. EADSON.

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