US2542218A - Revolvable stool - Google Patents

Description

Feb. 20, 1951 J. H. 'roELs'rEDE REVOLVABLE STOOL Filed April 17, 1947 III/I lll JIl. M

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Patented Feb. 20, 1,951

UNITED STATES PATENT OFFICE 2 Claims.

The present invention relates to revolvable stools, and has for its main object the provision of simple and inexpensive revolvable mechanism by means of which the stool seat may revolve with relation to the stool base.

A still further object of the present invention is the provision in a revolvable stool of a pair of ball-bearing races, one attached to the base and the other to the seat section of the stool, with ball-bearings interposed between the races, for ready revolving of the seat section of the stool with relation to the base thereof, with means for maintaining the races connected on a vertical plane and in transverse relation with the base and the seat section.

With the above general objects in view and others that will appear as the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing and pointed out in the appended claims.

In the drawing forming a part of this application, and in which like designating characters re fer to corresponding parts throughout the several views;

Fig. l is a diametrical cross-sectional View, on a vertical plane, through the support, base, seat section of the stool and revolvable connection between the base and seat section of the stool;

Fig. 2 is an enlarged, fragmentary, cross-sectional view, similar to that of Fig. 1, Showing re- Volvable connection between the base and the set section of the stool; and

Fig. 3 is an enlarged, fragmentary cross-sectional view on line 3-3 of Fig. 1.

Referring in detail tothe present drawing' there is shown therein stool supporting standard I Il, which by its lower end may be rigidly affixed to a floor. Rigidly ailiXed or integrally formed with the upper end of said standard IG is a circular base II. Positioned upon upper face of base Il, and centrally thereof is washer I2 which is rigidly aflixed to said base I I by any suitable means, such as welds I 3. Positioned upon the upper face of said washer I2, and rigidly affixed thereto by welding, as at I4, or any suitable means, is lower ball-bearing race l5. Super-imposed over said race I5, in a cooperative relation therewith, is similar raee I6. Said latter race I6, by its upper face is rigidly afxed by any suitable means, such as welds Il, to washer I8. The latter is affixed to the under-face of seat base I9, by being welded thereto as at 2B, or by any other suitable means.

Races I5 and I5 are in a mutually spaced relation, and on their opposed faces are each provided with annular channel 2 I, each of which is of an arcuate formation on transverse cross# section, for seating a plurality of ball-bearings 22, the latter being interposed between two races I5 and I6, and are there Vretained in an operative and spaced position by means of a conventional ball-bearing supporting ring 23. The latter is provided with conventional openings 24! within which ball-bearings 22 are seated in a transverse relation with ring 23.

The corner of each race the outer face of each race riphery thereof is reduced for effecting bevel 25. Placed around the two races and in contact with their outer peripheries is cylindrical member 26, having its ends inwardly flanged for effecting inwardly directed lips 2l, each of which overlies and contacts with the respective bevel 25 in races l5 and I6.

It is noted that the engagement of cylindrical member 26 with races I5 and 'I6 is accomplished before the latter are aiiixed to washers I2 and I3, respectively, and before lips 2l have been formed. This is done by rst inserting races I5 and `It with ball-bearings 22 and ring 23 in the operative position between said races, as best shown in Fig. 2, and thereupon spinning over the ends of said cylindrical member 25 towards bevels 25 until lips 2l are formed and brought in an operative contactual relation with bevels 25 as is seen in Fig. 2. Thus, When said lips 2l have been formed and engaged with said bevels 25, races I5 and I5, ball-bearings 22 and cylindrical member 2S will constitute a unit to be interposed and rigidly affixed by welds I4 and Il to the respective washers I2 and I8.

Lips 2l, contacting with bevels 25, prevent separation of races I 5 and i 5 in vertical direction, but the contactual engagement of cylindrical member 26 with the peripheries of races I5 and I6, and of lips 2l with bevels 25, is suificiently loose so as to permit free and unobstructed rotary motion of one race with relation to the other, the rotary motion of said races is facilitated by ball-bearings 22. Before cylindrical member 26 is applied to races I5 and I6 a lubricant may be spread between said races and channels 2|, as well as upon ball-bearings 22 for the purpose of facilitating free rotation of races I5 and I6 with relation to each other. The inner periphery of cylindrical member 26 may likewise be lubricated before the insertion therewithin of said races I5 and i6, for facilitating rotation of said I5 and I6, defined by and the adjacent pe` races with relation tosaid cylindrical member 26. Sponge rubber cushion 23, or cushion made of any other suitable material, positioned and attached to seat section I9 of the stool, completes the structure of the present invention. Parts other than said cushion 28 are preferably made of any suitable metal. It is understood that welding connections I3, It, I'I and 29 may be eliminated and bolts, screws or any other suitable means may be substituted therefor.vr Y v f From the hereinabove description it will be apparent that due to the revolvable Yconnection between base II and seat section base I9, throughl the medium of races I5 and IG and cylindrical member 26 joining therewith by means of bevels 25 and lips 21 the seat section of the stool c'annot be detached or removed frombase II, while permitting complete rotary movementof' the seat section of the stool with relation to base Iil, the latter through the medium of ball-bearings 22 and races IE-andli. v Y

It is further observed thatbase II may be unattached to any support such as standard I, and further said base may be enlarged to conform to the diameter of the seat section base It, and

when thus constructed the entire stool unit may'- be easily carried and when in that condition the stool may be used for boats as a seat to be placed upon boat benchV to be used while fishing or operating a motorhwith full vfacility forthe user for turning in all directions without changing the yseating position with relationto the stool.-

It yis alsonoted that washers I andV I8 may be entirelyeliminatedinwhich case1races rl 5 and I t may be directly afxed lto stationary base II Hand seat base I9, respectively.: For all-practical purposesrwashers I2 and -lniay be consideredy as parts of stationary base II and seat base Igyrespectively. A I 'Y While there is described bodiment of the present invention,l it is nevertheless to be'understood that minor `changes maybe made thereinwithout departing'from the ,spirit and scope o f the invention as claimed. 1- What I claim as newis:

1. A revolvable stool compri base,A a'race rigidlyfaflixed to saidbase, a seat base in a spaced relation `witl'isaid stationary equal diameter, anti-friction elements interposed base, a race rigidly aixed to said seat base, the two races being'of anpannular formation and of herein a preferred em# sing Va stationary 'for permitting free rotary movement of one race with relation to the other on a horizontal plane,

for permitting rotation of said seat base with relation to said stationary base.

2. A revolvable stool comprising a stationary base, a race rigidly aixed to said base, a seat base in a spaced relation with said stationary base, a race rigidly aixed to said seat base, the

vmember being bent toward the longitudinal two races being of an annular formation and of equal diameter, anti-friction elements interposed between said races, and a cylindrical memberV surrounding said races and in contact with their outer peripheries, the ends of said cylindrical center of said cylindrical member for effecting lips, said lips contacting with and overlying the portions of the outer end faces of said races adjacent their peripheries, said lips and said antifriction elements constituting means for maintaining said raees in a rigid mutual relation transversely thereof, and for permitting free rotary movement of one race with relation to the other on a horizontal plane, for permitting rotation of said seat'base with'relation to said `stationary base. Y

- JAKE H-.TonLsTEDn REFERENCES CITED The following references are of record in the file of this patent:

UNITED l STATES PATENTS Number Name Date 1,337,059 Fisher Apr.'1v3, 1920 FOREIGN PATENTS Number Country Date 157,892 Switzerland of 1932 492,492' Great Britain Sept. 21, 1938

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