US851651A - Fan attachment for sewing-machines and the like. - Google Patents

Description

PATENTED APR. 30, 1907.

J. P. COLEMAN. FAN ATTACHMENT FOR SEWING MACHINES AND THE LIKE APPLIOATION FILED NOV. 20. 1906.

2 SHEETS-SHEBT l.

witnesses .w dd/cm ms NURRIS Pzzrmzs co., wasnmcrou, n. c

PATENTED APR. 80. 1907.

LP. COLEMAN. FAN ATTACHMENT FOR SEWING MACHINES AND THE LIKE.

APPLIGATION FILED NOV. 20, 1906.

UNITED STATES Parana orrron JOHN P. COLEMAN, ()F ()GIJESBY, llililNOlS.

Specification 01" Letters Patent.

ratenteci April 30, 1907.

A li ti fil d November 20, 1906. Serial its 344,281,

if) (t /L whom, it 'IIl/(I f/ concur/1,.-

Be it known that I, John P. Cowman, a citizen of the United States, residing at Ogleshy, in the county ot Lasalle, State of Illinois, have invented certain new and use- 'tul Improvements in F an Attachments for Sewing-Machine and the Like; aml 1 do hereby declare the following to he a full, clear, and exact description ot the invention, such as will enahle others skilled in th. art to which it appertains to make and use the same.

This invention has reference to tan attachments for use in connection with sewing and other machines; and the invention has for its chief object to provide a simple, and etfective device of the class descrihcd, which can be quickly and easily applied to any kind of machine and can he driven from the main drive-shaft of the machine.

To this end, the invention consists in the provision upon the machine tahlc ot' a pedestal having a pair of telescoping sections mounted thereon, the inner of which is 'pro vided at its upper end with a hollow tuhular bearing-memher, in which is rotatahly mounted a hearing-sleeve provided with a driving-pulley having. a helt connection with the mainsha'l't of the machine; there being a fanspindle mounted within the hearingsleeve and provided with a [an and tan casing.

A further improvement consists in the provision of a clutch memher upon the opposite end of the tan-spindle, adapted to he moved into and out of engagement with a clutch member formed on the hearing-sleeve for effecting the rotation of the fan-spindle.

The invention will he readily umlerstood from the following detailed description, and its preferred cmhodiment is illustrated .in the accompanying drawings, in which like parts are designated hy corresponding reference numerals in the several views, and in whi.ch

Figure 1 is a side elevation of the fan attachment in place. Fig. 2 is a top plan view thereof. Figs. 3, l, and 5 are horizontal sections taken respectively on the lines 3-3, 44, and 55 of Fig. 1.

Referring to the drawings, and more particularly to Fig.1, there is shown a portion of a sewing machine including a machine body 14 mounted upon a table 15 ot the usual type, and provided with a mam shalt 16 carrying the usual tlywhecl and a grooved pulley 17 connected by a belt 18 with a similar pulley mounted on the tremlleo mr ated crank shaft of the machine (not shown). As the aliovc parts are common to all sewing machines, further description thereof is unlltUkSb'ltl')".

Mounted upon the tahle extension 19 is a pedestal 20, to which is secured a tubular casing 21, vertically disposed thereon and having a tubular memher 22 slidahle therewithin and provided with. a longitudinal groove 23. The casing and tuhular memher may thus he adjusted with respect to each other, being retained in such position by means oi a set-screw 24, passing through the enlarged upper end of the casing and having its inner end litting in the groove 23. The upper end of member 22 is provided with a here 25. 26 designates a lmrizontally-disposed hollow hearing-memlzer having a depending stem formed with a reduced portion 27 litting in said here, whereby the position of memher 26 may he adjusted with respect to member 22, said. parts being retained in position when adjusted by means of a setscrew 28, working through an opening in the upper portion of memher 22 and impinging against the reduced portion 27 of memher 26.

.ltotatahly mounted within memher 26 is a hollow hearing-sleeve 29, provided with collars 3t) mounted thereon. and located on opposite sides of member 26 for preventing end wise movement of said sleeve. A grooved belt-pulley 31 is secured to one end 01? said sleeve while its opposite end is toothed, as at 32, to form one member oi" a clutch. Loosely mounted within said sleeve is a fan-spindle carrying a fan 34 on one end and having its opposite end threaded, as at 35. An internally threaded lnmd-whtwl 36 is mounted for ltmgitudinal movement on the threaded end of the spindle and is formed on its inner face with an extension 37, the outer end of which is serrated and serves as the opposite memher o'l the clutch.

3S) designates a short horizontal stub-shaft journaled in hearings provided in the pedestal 2t) and in a short upright 38 secured to the table 15, said stub-shaft being provided with a compomid-pulley, the larger member 40 of which is connected by a belt 4:1 with the pulley 31 on the hearing-sleeve 29, while its smaller memher 42 is connected by the belt 18 with the pulley on the treadle-operated cr ank-sh a l t In the operation of the machine, rotation of the crank-shaft pulley, eli'ected through the treadle, drives belt 18, which in turn rotates pulleys 42 and 17, the latter of which being carried by the shaft 16, operates the machine proper. The rotation of the compound-pulley by means of its belt-connection with the" pulley 31 on sleeve 29 effects the rotation of the latter, which movement is communicated to the fan-spindle when the clutch member 37 of the hand-wheel 36 is moved into engagement with the clutch member 32 of the sleeve.

WVhile the invention has been shown and described in connection with a sewing machine, it will be readily understood that it may be attached with equal facility to den tal machines and other machines of a like nature.

The fan-spindle may be provided with a casing 43, surrounding the fan, and various other changes may be made in the size, proportion, and arrangement of the several elements of the machine without departing from the scope of the invention.

I/Vhat is claimed, is

1. In a fan attachment for sewing machines and the like, the combination, with a pedestal on the table of the machine, of a standard mounted on said pedestal and provided with a horizontally disposed hollow bearing at its upper end; a sleeve rotatably mounted within said bearing and provided with means for preventing its endwise movement with respect thereto; a clutch member formed on one end of said sleeve; a fanspindle rotatably mounted within said sleeve; a fan secured to one end of said spindle; a longitudinally movable clutch member carried upon the opposite end of said spindle, and

adapted to be moved into and out of engagement with said sleeve clutch member; and means for driving said sleeve from the machine wheel.

2. In a fan attachment for sewing machines and the like, the combination, with a pedestal on the table of the machine, of a tubular casing mounted upon said pedestal; a tubular member slidably mounted within said casing and provided with a bore at its upper end; means for securing said tubular member in adjusted position within said casing; a horizontally disposed hollow bearing member having a depending portion fitting rotatably in said bore; means for securing said bearing member in adjusted position with respect to said tubular member; a

sleeve rotatably mounted within said bearing and provided with means for preventing its endwise movement therein; a clutch member formed on one end of said sleeve; a pulley secured to the opposite end of said sleeve; a fan-spindle rotatably mounted within said sleeve, and having its end adjacent said clutch member screw-threaded; a fan carried by said spindle at one end; a longitudinally movable clutch member carried upon the threaded end of said spindle and adapted to be moved into and out of engagement with said first-mentioned clutch member; and a belt connection between said pulley and the drive wheel of the machines forrotating said sleeve. In testimony whereof, I afiiX my signature, in presence of two witnesses.

JOHN P. COLEMAN. I/Vitnesses:

J NO. DUFFY, FRED RosENoRANs.

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