US732341A - Oscillatory support for fans or other objects. - Google Patents

Description

I. DEVINE. OSGILLATORY SUPPORT FOR FANS OR OTHER OBJECTS.

APPLIOATIOIT FILED JULY 11, 1902.

' PATENTED JUNE 30, 1903.-

H0 MODEL.

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PATENT 'OFFICE.

JAMES DEVINE, OF SPRINGFIELD, MASSACHUSETTS.

SPECIFICATION forming part ofLetters Patent No. 732,341, dated June 30, 1903.

Application filed July 11, 1902. Serial No. 115,186. (No model.)

T0 at whom itamty concern: Be it known that'I, JAMES DEVINE, acitizen of the United States of America, and a resident of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvementsin Oscillatory Supports forFans or other Objects,

of which thefollowing is a full, clear, and eX-- An aim of the invention is to provide a mechanism which shall be comparatively simple in construction and not liable to become deranged after protracted use and one in which the motion may be regular and uniform at all times.

The invention consists in constructions and combinations of parts, all substantially as hereinafter fully described, and set forth in the claims.

The oscillatory platform and the mechanism for imparting its movements thereto are illustrated in the accompanying drawings, in which f Figure 1 is'a horizontal sectional view and plan of the parts below the plane of section. Fig. 2 is a central vertical section taken on the line 2 2, Fig. 1. Fig. 2 represents the plane of the horizontal section on whichFig. 1 is taken.

Similar characters of reference indicate corresponding parts in both of the views.

In the drawings, A represents a circular casing mounted on a suitable base, at the top of which the circular platform or plate B is mounted for its oscillatory movement in a plane at right angles to the common axis of itself and the casing. The upper portion of the casing has an inwardly-extending annular flange a, having the ball race or groove 19 for the balls 0, upon which the support B has antifrictional bearing. A shaft C is mounted axially and fixed within the casing and forms The section-line 1 1 on the central bearing for various of the parts concentrically arranged thereabout.

A sleeve D is fixed to the center of the platform B and depends therebelow and has thereon the gear-wheel E, with which meshes the teeth of a sector-gearF, which is mountedfor its oscillatory movement on the stud d, affixed to and depending belowthe aforementioned flange aof the casing. One of thelaterally-extended portions of the sectorgear has a depending'studf, which engages in the groove 9 of the heart-shaped cam G. The cam has a continuous rotary motion imparted to it primarily from the reaction of the clockspring H,oneend hof whichis affixed to the side of the casing, while its inner end within its several convolutions is affixed to a sleeve t,

which loosely surrounds another sleeve j, ro-

tatable about the central shaft 0, and on which latter sleeve j the hub'of the cam G is fixed.

The aforementioned sleeve '5 has attached thereto the ratchet-wheel k and has loose thereon at its lower end the gear-wheel m, and dog or pawl m which is pivoted on the gear-wheel m, is in spring engagement with the teeth of the ratchet-wheel k, and the aforementioned sleeve j has a pinion gearwheel n, with which meshes a large gear- Wheel 0, which latter has as a part thereof the pinion 0 which gears back into the gearwheel on, and-the outer sleeve 1: above the clock-spring has the large gear-wheelp affixed thereto, with which engages the pinion g on p the winding-shaft'qi which is adapted at its end q? to receive a winding-key.

It will be apparent that through the key and shaft g the gear 19 will be rotated and with it the sleeve 2', thereby rotating the ratchet-Wheel, which may turn in one directionindependently of the gearing m n 0 0 the connection between the sleeve t' and the spring winding up said spring, which latter is held in its wound condition by the pawl or dog,'to unwind only by reacting through the dogged ratchet wheel, and gearing at the bottom to impart a slow rotary motion to the cam G and through such continuous rotary motion of the cam to impart an oscillatory ICO motion to the sector-gear and an oscillatory motion to the support or platform B.

As a means for insuring steady movements of the oscillatory platform or support 13 as imparted thereto by the spring-power through the gearing connections described a governing or regulating device is cooperatively combined in the mechanism. the same consisting of a cup-shaped casing J, having concentrically therewithin a stud i, on or with which rotates a lantern-pinion to, having radial arms 11, 16*, to which are pivotally connected centrifugal blocks 1) r, the arc-shaped outer edges of which are adapted to bear frictionally on the inner surface of the wallof the cup-shaped casing J. The springs ware applied between the centrifugal blocks and the aforementioned arms 0 which have reaction tending to draw the blocks away from their rim-bearings.

A rotation of the lantern-pinion and the centrifugal blocks which is speedy in comparison with the rotational movement of the sector gearing and support B is imparted by constituting the base of the cam G of large diameter and circular form and cut with gearteeth as to engage in the lantern-pinion. The diameter of the gear being many times that of the pinion u, the rotations of the latter in the ordinary running down of the clockspring mechanism will develop such speed as to cause the blocks to work frictionally against the rim of the casing therefor, the tension of the springs being adjusted for the desired regulating effect.

While the mechanism for the purpose described may in accordance with this invention be varied considerably in the matter of detail without departure from the essence and spirit of the invention, it is to be pointed out that the arrangement shown is one wherein the number of necessary parts are reduced to a minimum and wherein the assemblage may be quickly and easily performed.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is- I 1. In a mechanism for the purpose set forth, in combination, a hollow base and a fan-supporting platform mounted to turn on said base in a plane at right angles to the common axis of said platform and the base, a clock-spring, inclosed in said base, having means for winding it, a part, deriving from the reaction of the clock-spring, and connections between said part and said spring, a continuous rotary motion, and means between said part and the platform for imparting from the continuous rotary motion of said part, an oscillatory motion to the platform.

2. In a mechanism of the character described, in combination, a suitable base and a platform mounted to turn thereon and having an axial dependent member, a clockspring inclosed in said base, having means for winding it, a part, deriving, from the reaction of the clock-spring and connections between said part and said spring, a continuous rotary motion, and means between said part and the axial depending part of the platform, for imparting from the continuous rotary motion of the one an oscillatory motion of the other of said parts, for the purpose set forth.

3. In a mechanism of the character described, in combination, a hollow base and a platform mounted to turn thereon, a clockspring inclosed in said base, having means for winding it, a part, deriving, from the reaction of the clock-spring, and connections between said part and said spring, a continuous rotary motion, means between said continuously-rotating part and the platform for imparting from the rotary motion of the one, an oscillatory motion of the other, of said parts, and a device comprising an annular rim, a pinion having arms, centrifugal members connected to said arms and adapted to bear frictionally on the rim, and a comparatively large gear, moving in conjunction with said continuously rotatable spring driven part,and meshing said pinion,for the purposes set forth.

4. In a mechanism of the character described, in combination, a base, a platform adapted to turn upon the top thereof and having a depending part provided with a gearwheel, a sector-gear engaging said gear-wheel, and having a stud, a part, mounted for a continuous rotary motion having a cam-groove in which said sector-gear stud engages, and means for imparting a continuous rotary motion to said cam-provided part.

5. In a mechanism of the character described, in combination, a hollow base, a platform adapted to turn upon the top thereof and having a depending part provided with a gear-wheel, a sectorgear engaging said toothed wheel and having a stud, a part, mounted for a continuous rotary motion having a cam-groove in which said sector-gear stud engages, a clock-spring located in said hollow base, having winding means therefor, and gearing connections impelled by the reaction of said spring and driving said continuously-rotatable part.

6. In amechanism for the purpose set forth, in combination, a hollow base having at its upper portion the inwardly-extending annular 'flange provided with the groove, and balls therein, the platform, above the base, supported on said balls, and provided with a depending toothed member, a sector-gear meshing the latter, and having a stud, a clock-spring, a part operatively connected therewith and deriving continuous rotary motion therefrom, and provided with a camgroove in which said sector-gear stud engages.

7. In a mechanism of the characterset forth, in combination, the hollow base and the platform B thereon having a depending sleeveD and gear-wheel E, the central shaft 0 fixedin the base and forming the central bearing for the platform and its sleeve, a sector-gear meshing the gear E and'having the stud f, the sleeve j loosely surrounding the central shaft and having the pinion n thereon, and

carrying the cam G, in the groove of which said sector-gear stud engages, a sleeve t surrounding the sleeve j, a clock-spring having connection with the latter sleeve, and red ucing-gearing connections between the sleeve 2' and the pinion n on the inner sleeve.

8. Inamechanism of the character set forth, in combination, the hollow base and the platform B thereon having a depending sleeve D, and gear-wheel E, the central shaft 0 fixed in the base and forming the central bearing for the platform and its sleeve, a sector-gear meshing the gear E and having the stud f, the sleeve 3' loosely surrounding the central shaft having the pinion n thereon, and having the part G comprising the groove in which said sector-gear stud en- JAMES DEVINE.

Witnesses:

WM. S. BELLOWS, A. V. LEAHY.

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