US1114076A - Fan attachment for sewing-machines. - Google Patents

Description

J. D. WARRELL.

f' EAN ATTACHMENT EOE SEWING MACHINES.

APPLICATION FILED APR. l, 1914.

Patented 0013. 20, 1914.

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FAN ATTACHMENT Fon. SEWING-MACHINES.

summon Meer Perm, `"lamenti-al oet. 2o, 1914.

Application mea April 1, 1914. serial up. 828,856.

improvements ill fan attachments for sewing machines, the main object of the invention being the provision of a fan which is.

adapted to be removably applied to the ily wheel of a sewing machine, in order to generate an air draft during the operation of the machine.

Another object of the invention resides in the provision of a fan attachment of the above character which will possess advantages in points of eiiiciency and durability, is inexpensive to manufacture and, at the same time, is simple in construction and operation. A

VWith the above and other objects in view, the invention consists in the novelfeatures of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification andwclaims.

In the accompanying drawing forming a part of this specification, Figure 1 is a front elevation of a fan attachment constructed in accordance with my invention; and Fig. 2 is a transverse sectional view taken on the line 2-2, Fig. 1.

Referring more particularly to the drawing, 1 indicates the ily wheel of a sewing machine, upon which my improved fan is adapted .to be `nlounted. The fan attachment includes a circular split band 2 which is substantially arcuate in cross section, so as to conform to the curvature of the periphery of the fly wheel 1. The annular side edges of the band 2 are bent upon themselves to lform channels 3, in which the binding rings 4 are mounted. It will be noted that the band 2 contains sulicient resiliency so that when the same is. arranged upon the periphery of thewheel 1, it will be readily retained against outward movement until pressure is applied thereto and the retaining Wires or rings 4 will securely hold the` band against lateral movement.

Formed/integral with the band 1 and projecting from the outer side thereof, are the spaced ears 5, to which are secured the fan blades 6, said blades being provided with a reduced portion 7 adapted to be arranged between the ears 5 and riveted or otherwise secured thereto.

. From the above it will `be readily apparent that. my improved fan attachment may be quickly and readily applied to the fly wheel of a sewing machine or removed therefrom. It will also be apparent that after the band is arranged in position upon the fly wheel 1, the wire rings 4 will engage upon opposite sides of the wheel and retain the band against lateral movement, and it will be apparent that the resiliency of the band 2 will be sufficient to clamp the same tightly llpoll the wheel, said bandv being formed of galvanized iron or heavy tin. It will also be apparent that the device may -be applied to a sewingmachine wheel,

whereby the air draft therefrom may be projected toward the operator or in the opposite direction. It will also be apparent that the device is extremely simple in construction and can be manufactured and placed upon the market at a comparatively low cost.

While? 'I have shown and described the preferred form of my invention, it will be obvious that various changes in the details of construction and in the proportions may be resorted tofor successfully carryin my invention into practice, without sacri cing any of the novel features or departing from the scope of the appended claims.

Having thus described this invention, what I claim is 11T-'A device of the classy described including a split band substantially arcuate in cross section, the annular edges of said band being bent upon themselves 4to form beadings, retaining ringsfarranged wlthln said headings, and a plurality of fan blades secured to the outer faces of said band at one side thereof.

2. A. device of the class described including asplit band, substantially arcuate in cross section and having its annular edges bent upon themselves to form projections, yieldable retaining rings arranged within 'zoV said projections, perforated ears forrned in-` In testimony whereof I hereunto :Lfix my tegral with the band and projecting upsignature in the presence of two Witnesses. wardly from the outer face at one side thereof, and a, plurality of fan blades having re- 4 JOHN D' WARRELL' duced portions adapted to be secured to said Witnesses: perforated ears, as and for the purpose set E. J. SHADDOGK,

forth. J. S. MCMAHON.

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