US708443A - Automatic fan. - Google Patents

Description

No. 708,443. Patented sept; 2,1902.

J. n. wlLLmms.

AUTOMATIC FAN.

catio (Appl n led Oct. 29, 1901.)

(No Model.)

A TTORNE YS j vertically and provided with blades b. The

on the shaft.

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JEFF DAVIS VILLIAMS, OF DENNIG, ARKANSAS.

AUTOMATIC FAN.

SPECIFICATION forming part of Letters Patent No. 708,443, dated September 2, 1902,

Application led October 29,1901.

To all whom t nza/y concern:

Be it known thatI, JEFF Davis WILLIAMS, a citizen of the United States, residing at Denning, in the county of Franklin and State of Arkansas, have made certain new and useful Improvements in Automatic Fans, of which the following is a specification.

, My invention is an improvement in that class of automatic fans which are designed to be placed upon tables or any other suitable supports in dining-rooms, sick-rooms, and other places for creating a breeze of air and driving away iiies and other troublesome insects.

The chief features of novelty are the means for supporting the fan-shaft and securing it detachably and for adjusting the fan-blades The details of construction, arrangement, and operation are as hereinafter described, and shown in the accompanying drawings, in which- Figure l is a perspective view of my improved fan. Fig. 2 is a horizontal section of the fan-case inclosing the main parts of the apparatus. Fig. 3 is an end View of a portion of the apparatus. Fig. 4 is a detail perspective View of parts by which the fan-shaft is supported in working'position.

a indicates a fan-shaft which is arranged said shaft is supported bymeans hereinafter described and is rotated automatically by means of spring-actuated gearing c, such as ordinarily employed for driving clocks, and which therefore requires no detailed description. The spring ot' the said gear is wound up by means of a wrench or key applied to the post d. The frame e of the apparatus consists, principally, of two skeleton plates arranged horizontally parallel, the gearing 'c being arranged between them in a well-known man- The fan-shaft d is stepped in the lower plate of the frame atj' and is journaled at a higher point or just above the upper plate of the frame in a bearing formed of two plates or bars g and g. The shorter bar g is riveted to the upper plate of the frame, and the longer one, g', is pivoted on the opposite side of the same. The shorter bar g is provided with a groove in one side near its end to receive the shaft a, and the free end of the pivoted bar Serial No. 80,446. (No model.)

g/ is so shaped as to iit closely against such portion of the bar g, so as to hold the shaft in place when 'secured Vby means of a sliding link or keeper 7L. In other words, the meeting ends of the bars form, practically, a scarfjoint, and one of them is tapered. The keeper is arranged on the shorter bar g and adapted to slide over the tapered end of the pivoted bar g', so as to lock the two firmly together. The shaft a is provided with a collare'I (see Fig. 3) at a point directly below its upper bearing, so that when the parts g g are locked together the shaft is held in its bearings, both as to vertical and lateral motion. The lantern-pinion j, fixed on the lower portion of the fan-shaft d, meshes with the outer driving-gear of the clockwork c. It is apparent that by sliding the keeper h backward or away from the fan-shaft d the latter may be readily adj usted when it is required for any purposeHas, for instance, to pack the machine for shipment or storage-and by reversing the operation the fan-shaft is as readily set in place for operation.

The fan-blades b may be constructed of any light material. They are attached to the shaft byA means of hooks or clasps Z, formed on their inner ends, the said hooks engaging stirrups or links m, which are fixed on the shaft at a suitable elevation above the frame e of the apparatus. On the upper end of the shaft d are fixed laterally diverging and downwardly-curved arms n, provided with hooks o at their outer ends. These arms are not arranged in the same vertical plane with the links m, butin planes which are radially at an angle of ten degrees to fifteen degrees to each other. The blades are connected with the free ends of the arms detachably and adjustably by means of cords or chains p. By the arrangement of the arms in a different plane from the links the chains or cords p extend vertically at an inclination, as shown in the drawings, and the joints of the blades with the links are therefore relieved of torsional strain, which would otherwise occur by reason of air-pressure on the blades. It is apparent that the blades b may be held at any desired elevation-say forty-five degreesor horizontal by means of the cords or chains p, sincethe latter may be taken up or adjusted in length, as conditions may require.

IOO

The fan-blades I9' and the cords or chains being detachable from their supports they may be packed along with the shaft and the remainder of the apparatus, so as to occupy the least possible space.

The apparatus may be set upon a diningtable or upon any support adjacent to a sickbed or an invalids chair, or in a barber-shop or any other place Where a breeze is required, either for driving away iies and other insects or for the comfort of individuals. All that is necessary to set the apparatus in operation is to Wind up the spring of the clockgear c, as before described.

What I claim isl. In an automatic fan of the class described, comprising spring driving-gear, a

rigid frame in Which the same is mounted, a

fancarrying shaft having a collar fixed thereon, and a detachable bearing for said shaft, composed of two bars arranged horizontally on the upper portion of the frame, one of them being pivoted and the other xed, and their meeting ends being scarfed as described, and the slidable keeper, for locking the bars together, as shown and described.

2. In an improved automatic fan of the class described, the combination, With the fan-shaft having links and arms fixed thereon at different points, fan -blades adapted for attachment to said links, and adjustable devices connecting the blades with the arms and serving to support them in the manner shown and described.

3. In an automatic fan of the class described, the combination, with the fan-shaft, having links and arms fixed thereon at different elevations, of fan-blades which are detachably engaged With the links, cords or their equivalent connecting the fan-blades with the outer ends of the said arms, and adapted to be shortened or extended for the purpose of adjusting the angle of the blades, substantially as shown and described.

4. In an improved automatic fan of the class described, the combination with the fan-shaft and links secured thereto, of arms also attached to the shaft but at a higher point, and arranged in a different vertical plane, and fan-blades adapted for attachment to the said links, and means for connecting the blades with the free ends of the arms, substantially as shown and described, to operate as specified.

JEFF DAVIS VILLIAMS.

Witnesses:

JOHN R. FRAZER, D. H. CRANE.

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