US2425413A - Milk stool - Google Patents

Description

Aug. 12, 1947.

M. BLACK MILK STOOL I Filed July 8, l1944 Patented Aug. 12, 1947 MILK STOOL Mike Black, Cincinnati, Ohio, assigner to H. H. Nichol-ding, Cincinnati, Ohio Application ll'tlly 8, 1944, Serial No. 544,063

2 Claims.

This invention relates specifically to milk stools, particularly adapted for use in dairies by persons engaged in milking cows therein; although it will he made evident that the stool constitutes a facility applicable to use as a seat in various places, and that the scope of the invention is not limited by the use to which it is applied.

Objects of the invention are to provide a stool' comprising a polypodous supporting frame having an annular bearing portion` at its upper end, in combination with a seat having a retaining bracket attached to its underside and rotatively mounted on said bearing, and an attaching bear'- ing device cooperating with said frame and said seat for rotatively holding the seat in a relationship in which said bracket operates on said bearing, leaving said seat free for rotation about a vertical axis while said frame remains stationary; to provide a portable and light-weight stool having a stationary supporting frame and rotary seat composed principally ci light-gage or thin-gage sheet metal, thereby contributing substantially and effectively to the lightness oi weight of the stool; and to provide a stool composed of a polypodous frame having an annular bearing rigidly connecting the upper ends of the legs thereof and provided with a central hole, in combination with a light-weight and thin-gage sheet metal seat having a bracket attached to its underside and rotatively supported by said bearing, and a central pivot device engaged in said hole and preventing both lateral and vertical displacement of the seat relative to the frame while leaving the seat freely rotative about the axis of said pivot device.

Another object of the invention is to provide a stool for general use as a seat and consisting of a light-weight metallic polypodous supporting frame made of thin-gage sheet metal parts, in combination with a seat composed principally of thin-gage and light-weight sheet metal, and means for pivotally holding said seat on said frame while leaving said seat free for rotation about a vertical axis and preventing displacement thereof in any direction.

Various other objects and advantages will be evident from the following description, reference being made to the annexed drawing, in which- Fig. 1 is a side elevation of my improved polypodous stool.

Fig. 2 is an enlarged vertical sectional View showing the devices by which the seat is pivotally and rotatively retained upon and in connection with the supporting frame and held from displacement in any direction.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2, looking in the direction of the arrows and showing a bottom plan view of the device by which the seat is rotatively held in connection with the supporting frame and prevented from displacement.

Fig. 4 is a top plan .View showing attached crossed portions of the legs of the stool, looking from the plane 4 4 of Fig. 2.

In the embodiment of my invention shown, the polypodous supporting frame or pedestal comprises two pairs of sheet metal supporting legs which converge upwardly from attached crossed portions near their lower ends. The upper ends of the converging legs are rigidly secured to 'an annular bearing device for supporting the seat. It is evide-nt that the number of legs may be varied as desired, and that the invention is not limited to an embodiment in which the legs are arranged in pairs.

A relatively narrow strip of sheet metal of relatively thin gage and light weight is shaped to form a standard of approximately A configuration and provide two upwardly converging legs or limbs l and 2 integrally connected at their lower ends by an inwardly bowed cross-bar having upwardly converging portions 3 and 4 and a substantially horizontal portion 5. The bearing portions 5 by which the legs l and 2 are integrally connected with the portions 3 and 4, respectively, are curved and rounded as shown, in order to present smoothly curved and rounded outer bearing surfaces that will not damage, deface or mar the floors, carpets or rugs upon which the stool may sometimes be used. The horizontal connection 5 is formed with a vertically displaced portion l for receiving and for attachment to a complementary part of the cooperating pair of legs.

The said cooperating pair of legs comprises a relatively narrow strip of sheet metal of relatively thin gage and light weight shaped to form and provide two upwardly converging legs 8 and 9 integrally connected at their lower ends by upwardly converging portions I0 and II and a substantially horizontal portion I2. The bearing portions i3 by which the legs 8 and 9 are integrally connected with the portions I0 and I-I, respectively, are curved and rounded like the bearing portions 6 in order to pre-sent smoothly curved and rounded outer bearing surfaces that will not damage, deface or mar the iioors, carpets or rugs upon which the stool may sometimes be used. The horizontal portion I2 crosses the horizontal portion 5 and seats in and against the vertically displaced portion 'l thereof. The crossed parts 1 and I2 are rigidly attached together as by a'rivet I4. Y

Each ofthe legs I, 2, 8 and 9 has an attaching portion I5 on its upper end. The attaching portions I5 of all of the legs are engaged against an annular flange I6 of a circular sheet metal cap and rigidly attached thereto by welds I 'l or otherwise, as desired. The flange I6 forms an integral Vpart of an annular bearing I8. The annular bearing I8 is immediately above the flange I6 and is integrally connected by a wall having a domed cr upwardly convexed central bearing portion I9 provided with a hole that is coaxial with the annular flange I 5. bearing I8' and the bearing portion I9 are preferably in the same horizontal plane.

The detachable and rotary seat of my improved stool comprises an approximately circular section 4 Y ing Yportion I9 of the frame into clamping engagement with the underside of the central portion 22 of the seat device, and a portion 2'9 of greater diameter than the hole in the domed or convexed portion 20 ofthe frame through which the portion 28 extends, constitutes a part of the means for pivotally holding the seat on the frame while leaving said seat free for rotation The upper surfaces of the of thin-gage and light-weight sheet metal shaped to form a horizontal seating portion 20, and an integral downwardly extended circumferential ange 2l. The diameter of said seating portion is considerably greater than the diameter of the annular ange I5. The diameter of said seating portion 2D also is substantially less than the distance between the lower ends of any pair of legs of the supporting frame. This prevents the stool from tilting,A regardless of the distribution of Iweight on the seat. The downwardly extended flange ZI substantially strengthens the marginal portion of the seating portion 2Q, prevents Y bending and deformation thereof, and makes it possible to use light-weight sheet metal of smaller or thinner gage in forming the seating portion than would otherwise be possible.

Y lThe central part of the seating portion 29 of the thin-gage and light-weight metallic seat is strengthened and is prevented from bending or becoming deformed by a bearing device or hub extending centrally from the underside of the about a vertical axis, and for preventing displacement of the seat in any direction. The said'mern-ber 23-29 has a hole which is brought in vertical axial .continuation of the hole-2`I when said seat 20 is shifted. An attaching screw 30 extends vertically through the hole in the member V2li-29, through the hole in the central portion 22, and is detachably screwed intoV the threaded hole 21 in the metallic .body 26 in a manner to clamp the member 28-29 firmly against said central portion 22. In this adjustment, the portion 29 does not clampingly engage against the domed or upwardly convexed centrall bearing portion I9, but is held out of Y 28 abutting against the central portion 22.

seat, cooperating with therbearing I8 and with the dofmed or upwardly convexed central portion I9 of the supporting frame. The said bearing device or hub consists of a central portion 22 Vpreferably seating upon the domed or upwardly convexed central bearing portion I 9 of the frame,

and an annular portion 23 in integral connection with the margin of the central portion 22 and having .a marginal ange 24 seating against and attached to the underside of the part 2G of the seat by welding 25 or otherwise. The annular 'portion 23 is in vertical continuation of theflange I so that the margin of the central portion 22 seats upon the bearing I8. This positively prevents the seat from becoming tilted or inclined 'upon the supporting frame, and yet Y rotative about the vertical axis of said pivot device.' In the construction shown, a metallic Vbody 25 is welded or otherwise rigidly'attache'd to the upperrside of the central portion 22. The said .metallic body 26 is formed with a central screwthreaded hole 21 coaxial with the seat 2G,

Y and the central portion 22 is provided with a'hole Vin *continuation of the hole'21 and in axial alinement with the hole through the domed or up- Y wardly convexed central-bearing portion I9 of A memberfcomprising an abuttingV the frame. end portion 28 extendingthrough the hole in Y kthe domedf'or upwardly convexed central bear- Y iiguration providing a'pair of aligned'convergingf limbs, and limb connecting cross-bar toward theVA rhese elements pivotally hold the seat on the supporting frame, leave said seat free for rotation about the vertical axis of thepivot device, andV prevent tilting or displacement of the seat in any direction. l Y o It is now evident that my invention attains all of its intended objects and purposes ina highly efficient, satisfactory Yand economical manner. The stool may be composed almost entirely of light-weight and relatively thin-gage sheet metal, the peculiar novel formation and cooperative relationship of the different parts providing the necessary strength to prevent distortion thereof when subjected to the 'strains and stresses of continuous or repeated use in differ- Y ent environments. The stool is of light-weight,

and inexpensive in its construction. Iam aware Y that the particular form and shape of the different elements of the stool may be varied within equivalent limits without departure from the nature and principle of theinv'ention.

I claim: Y

1. A swivel seat stool, comprising: a pedestal of a plurality of standards, each composed of a flat Ymetal strip shaped to provide a pair of aligned limbs,V respectively joined with a limb connecting cross-bar portion of the strip of bowed form extending inwardly between the lim-bs, thereby with the limbsproviding diverging feet for the base Y of the pedestal, the limbs from their cross-bar connecting end inclined to converge toward each other with their terminals connected toa cap and the bowed cross-bar portion of the several standards VVcentrally intersecting and fixed together, Yan annularly rimmed sheet metal cap engaged over and fixed to the terminals fof the'ilimbs providing a head for the pedestal', th web side of the cap annularly recessed'to provide an annular peripheral bearing rib for a seat Vand a sheet metal seat having a'sheet metal hub iix'ed to and extending Vcentrally from'the underside thereof engaged upon said pedestal Vcap in swivel connection therewith and in bearing contact with `the rib thereof. Y Y

2. A swivel seat stool, comprisingra pedestal of Y a plurality of standards each composed of a flatV metal strip shaped approximately to an A-conlower ends Yof the limbs; and the standards relatively angularly `disposed with their cross-'bar portions intersecting and xed together, a cap Number Connecting the upper terminals of the standards 1,584,826 and providing a seat supporting head for the 875,494 pedestal and a seat having a hub extending cen- 144,806

trally from its underside in bearing contact upon 5 574,425

the pedestal cap and in swivel connection there- 1,467,830 with, the face sides of said hub and cap in rela- 1,337,059 tive annular bearing Contact by a circumferential 283,131 ridge extending from the face side of one thereof. 2,193,527 his 10 1,883,322 MIKE BLACK. 874,435 mark 2,364,516 Witnesses to mark: 1,092,445 MARCY V. QUAIN. 965,113 JOHN D. RJPPEY. 15 482,553

REFERENCES CITED The foliowing references are of record in the Number le of this patent: 2 978 UNITED STATES PATENTS 2 378,825 Number Name Date lqgg 412,338 I-Iurlburt Oct. 8, 1889 1,039,134 Jenkins Sept. 24, 1912 6 Name Date Uhl May 18, 1926 Bedell Dec. 31, 1907 Vollrath Nov. 18, 1873 Hood Jan. 5, 1897 Boggs Sept. 11, 1923 Fisher Apr. 13, 1920 McKinnon Aug, 14, 1883 Bentz Mar, 12, 1940 Abbott Oct, 18, 1932 Prescott Dec. 24, 1907 Buckstaff Dec, 5, 1944 Johnson Apr. 7, 1914 Konstantinides July 19, 1910 Fuhrmann Sept. 13, 1892 FOREIGN PATENTS Country Date Great Britain Febr. 19, 1889 Germany Aug, 3, 1923 Great Britain June 2, 1921 Great Britain Apr. 26, 1899'

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