US297386A - Will b - Google Patents

Description

(NoModel.)

- W= B. GREENE.

AUTOMATIC FAN.

N0. 297,886. Patented Apr. 22, 1884.

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ArENr AUTOMATIC FAN.

SPECIFICATION forming part of Letters Patent No. 297,386, dated April 22, 1884.

Application filed February 18, 1884.

To all whom, it may concern,.-

Beit known that I, VILL B. GREENE, a citizen of the United States of America, residing at -Washington, in the District of Columbia, have invented certain new and useful Improvements in Automatic Fans, and I 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 appertains to make and use the same.

My invention relates to an automatic fan having an oscillating or to-and-fro motion, the object being to provide a simple and reliable automatic mechanism for operating such a fan.

The invention consists in a novel construction of motive mechanism and in the combination of the same with a fan, as will be hereinafter particularly described with reference to the accompanying drawings, and denitely pointed out in the appended claims.

In the drawings, Figure I is a perspective view of an automatic fan constructed according to my invention, a portion of the casing being omitted and one of the supports of the motive mechanism being broken away in part in order to show the devices behind it. Fig. 2 is an enlarged perspective view of a portion of the fanshaft and the devices by which it is directly operated. Fig. 3 is asimilar view of the same parts in a different position. Fig. 4V is a perspective view of the impelling-wheel which acts upon the pallet of the fan-shaft.

Referring to Fig. I, the letters a b c indicate a train of wheels geared together in an ordinary manner and driven by a spring, d, for the purpose of giving rotary motion to a shaft, e, having a pinion, f, with which the last wheel of the train is engaged. Upon the shaft e is fixed a three-toothed impelling-wheel, G, the crown-teeth g of which operate upon the pallets hh, which project at different angles from the shaft H, on opposite sides of the center of wheel G, and are so arranged that when a tooth on one side of the wheel strikes one of the pallets and forces it out of its path, the shaft will be given a partial rotation, which brings the other pallet in the path of a tooth on the opposite side of a wheel, so that it will be in turn struck and forced in the opposite direction, the alternate striking and moving of the pallets causing an oscillating motion of the shaft. By referring to Eig. 2 it will be (No model.)

seen that a tooth, g, at the upper side of the wheel, is in contact with the upper pallet, 7L, and in order to pursue its motion under the stress of the motive spring d, this tooth must force the pallet h in the direction indicated by arrow number I, thus giving the shaft a movement which brings the lower pallet, h', into the position shown in Fig. 3, so that it will be struck by the tooth g, at the lower side of the wheel, at the moment the upper tooth ,escapes from the pallet h, thelower pallet, 7L', being thus caused to swing in a direction indicated by arrow number 2, and bring the upper pallet again in position to be struck by a tooth, g,- as the wheel G continues to rotate. The shaft II has a bend, 7c, formed in it, in order that the center of oscillation of the shaft may be in line with the diameter of wheel G, and the pallets thus brought in proper position with reference to the teeth of said wheel. The lower end of the shaft has a step bearing in a bracket Z, which projects inwardly from the fan-supporting plate p of the motive mechanism, and 1t has an upper bearing in an arm, m, through which it extends upwardly to the desired height for operating thefan N. This fan has projecting from its inner end an arm, a, carrying a collar, o, which fits upon the shaft H, and is vertically adjustable thereon, being held in any desired position by a clamp-screw, s, which binds it to the shaft. W'hen the motive mechanism is wound, by applying a suitable key to the squared projecting end q of the spring-shaft the spring will drive the train to give a rotary motion to the shaft e, the wheel G upon which, acting upon the pallets of the shaft, gives an oscillating motion to said shaft, as already described, and a similar oscillating motion of course to the fan N, which may be adjusted either vertically or angularly, as desired.

This fan may be placed upon a desk, a dining-table, or a stand near a bed, so as to produce refreshing currents of air for the comfort of a person or persons in its vicinity, and it will at the same time serve as a fly-fan. Of course it will be understood that a fan of any shape and suitable size may be attached to the shaft.

I am aware that there have been combined with a fan-shaft having a circular series of radial arms projecting therefrom two plates with fingers on opposite sides of the shaft, and

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arranged to revolve and strike the radial arms alternately on opposite sides of said shaft, to give the same an oscillating motion; and I do not claim such a combination.

Having nonr described my invention, what I claim is- 1. The combination, with the automatic motor having the rotary toothed wheel G, of the shaft H, provided with a fan, and having the pallets h h projecting at dii'erent angles, and arranged to be struck alternately by teeth of said wheel for the purpose of giving the shaft and fan an oscillating motion, substantially as described.

2. The combination, with the toothed Wheel G, provided with teeth g, and arranged to re- WILL B. GREENE.

Witnesses:

HARRY Y. DAvIs, A. H. NoRRis.

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