US2570634A - Pedestal supported rotary table top center section - Google Patents

Description

Oct. 9, 1951 c. A. BARTSCHY 7 PEDESTAL SUPPORTED ROTARY TABLE TOP CENTER SECTION Filed March 25, 1949 IN VEN TOR. C HADLES A BAQTSCHY Patented Oct. 9, 1951 'PEDESTAL:SUPPORTEDROTARY TABLE TOP CENTER SECTION Charles A. Bartschy, Kelso, Wash.

i. Application March 25, 1fl49,3 Seria-l -No. -83,401

ZClaims. (Olsen-133) iTherinvention relates :to animproved table v-01 the type having a rotatable or rotary center section-. in-its top, the primary object of. the inventtion *beingto providev .a more practical and serviceabletable of this character which is especially -suitable for use [in restaurants and'othercom- ,mercia'l establishments; such as manufacturin :or assembling plants.

- Other objects and advantages of the invention wwill appear in further detail as thespecifi-cation :proceeds.

that each of the supporting arms 8 is a lightweight butlrigid and firm-supporting structure 'for thering shaped: table top+section Ill. The inclusion of several .such supporting arms secured In orderto facilitate ready comprehension of i this invention and 1a proper appreciation of :the salient features thereof, a specific embodiment .iof' the invention is illustrated" in the accompanyr'ing drawings :forming parthereof and .in which:

Figure 1 is a perspective view; :Fignre :2 is a horizontal section taken on line 22 in Figure 1;

Figure 3 is .airagme'ntaryitransverse verticalsection .takenonline 3-3 in Figure .2.

I In the views, the same reference numerals indicate the same or like parts.

Referring in detail to the "drawings, the illustrated table, generally designated 4, comprises a v.group ofzfeet 5 securedtogether in acruciform idesignrto thelower .endsfi iofpa vertical cylindrical pedestal .1, about whose upper part are secured :a groupof circumferentially spaced,- radially outwardlyand upwardly-extending supporting arms :generally indicated at 8, .8. The supporting arms 18;.each consist of a...radiallyextending horizontal strip xof "metal benthdownwardly to form, a de- .x=pending. lug 7.] ll, at the. inner end thereof, secured Ifby a pair ot screwsll toithe pedestal 7|, :the outer part of the arm 9 being curved upwardly at 2 and formed at its outer end with a radially outwardly extending attachment lug l3, secured by screws 4 to the underside of a stationary annular table top section I5. The section I5 is enclosed by a covering including a channel It of plastic or metal engaging over its outer peripheral edge." A diagonal brace l8 of metal strip has its lower, and radially inward end secured, as indicated at IT, as by welding or brazing, to the inward end of the supporting arm portion 9 and has its radially outward or upper end similarly secured, as indicated at l9, to the upper and outward end of the arm portion I2. In addition, a horizontal brace 20, also formed of metal strip, is bent. downwardly at the inner end thereof to form an attachment lug 2| which is secured by pairvotkiscrews 22 to the upper part of the pedestal "I and has its outer end welded or brazed iasiindicated at 23', to an intermediate portionofi'the diagonal brace l8. The result is to the pedestal and-tothe undersideaof a. the

stationary table top section I15. at equidistantly spaced,.points. adequately supports the same and provides at the .samertime free access to the underside of the table top. and. the pedestal. for

cleaning or other purposes.

The annular stationary section 1 I5 has .a .cen-

tralieircular opening 24, and-the inner peripheral "edge of th8-1SBCtiOn-|-5 isprov-ided with arelnforcing-channel .25 to present a perfectly icircu- ;1a1 ,'.-sm0oth,-.and' reinforced edge. Cooperatin with the section IE to complete the table top. is

.a circular centertable .top section 6, which occupies the opening 24,..andis provided .cn..its

peripheral-edge with a finishingandreenforcin channel 21. The rotary section 26 is supported in aflush i relation with the top of the stationary section IS. TO the center of the underside of the rotary section IEis secured.ametaldisc 28 Jay inea-nsnof. a; group of screws .29 and the disc 25,

has. thereintan lar-cuatefinger hole or slot .30, intowhich thelfingers. can he, thrust to facilitate handling-the rotary section 25, from below when required. To the-center oftheunderside of the :disc 23 isbrazed or welded a vertical axis nut 3 :The upper end-32 zof the pedestal is formed with an upwardly openingcylindrical recess 33 in which fitted an lupwardly opening metal ;-.cylinder 3-4 terminating flush with the upper end .of the pedestaland having aclosed bottom .35.

Within thehollow cylinder .34 and resting upon the bottom 35. thereof is a ball thrust bracing 38 which includes a lower ball race 36 which is wedged in the cylinder by means of a shim 31, and has an upper annular ball race 41. Within the upper end of the hollow cylinder 34 is forcefitted a ball bearing 39 having an outer race 40 and an annular inner race 4|. Into the above mentioned nut 3| is screwed the upper threaded end of a reduced portion 42 of a spindle 43' which is axially positioned in the cylinder 34. The reduced portion 42 extends through the opening of the annular inner race 4| and defines an upper shoulder 44 which supportably engages the underside of the inner race 4|. At its lower end the spindle 43 is provided with a reduced portion 45 which extends through the opening of the upper race 41 and defines a lower shoulder 46 which rests upon the upper ball race 41 of the thrust bearing 38, the upper race 41 being arranged so that the thrust bearing 38 supports the combined weight of the spindle 43 and the rotary table top section 26, while the upper ball bearing 38 holds the rotary section 26 centered in the table top opening 24 and eliminates transverse strains and displacements thereof relative to the pedestal I and the stationary table top sesction l 5 and allows free rotation of the rotary section 26 within the opening 24 in the stationary section IS. The annular stationary section l5 may be covered with coating material 48, and similarly the rotary section 26 may be provided with surfacing material 49, the two sections being flush in such a manner that articles can be freely slid thereon across the table top in any direction.

The arrangement is such that if the table is used in a restaurant, for example, various containers of condiments, sauces, and supply dishes placed upon the rotary section 26 will be readily accessible to a groupof persons seated around the table, since the rotary section can be easily rotated to bring any of the various containers or dishes within reach of any of the group. While one of the group is being served from a main dish, others of the group can momentarily use the containers or dishes from the rotary section 26, and after replacing the containers or dishes thereon the rotary section 26 can be retated in step-by-step fashion to make the container available in succession to the various mem bers of the group. The'table can also be used for assembling aparatus by having a group of assemblers around the table with a supply of parts on the rotary section 26, so that the rotary section 26 can be rotated step-by-step to con: front each successive assembler in turn with the proper parts.

Manifestly, variations may be resorted to and parts and features may be modified or used without others within the scope of the appended claims.

Having now fully described my invention, I

claim:

1. In a table, a pedestal formed in its upper end with a recess, a hollow cylinder'fitting said recess. said cylinder having an open upper end upper end portion extending upwardly through the opening in said annular bearing, said reduced upper end portion defining an upper shoulder on said spindle bearing against the undersideof said annular bearing, a circular rotary table top section fixed centrally upon said spindle above said upper annular bearing, and an annular stationary table top section fixedly mounted on said pedestal and surrounding said rotary table top section.

2. In a table, a. pedestal formed in its upper end with a recess, a hollow cylinder fitting said recess, said cylinder having an open upper end and a closed bottom, a lower ball thrust bearing supported on the bottom of said cylinder having an annular upper race, a spindle positioned axially in said cylinder having a reduced lower end portion extending downwardly through the opening of said annular upper race, said reduced lower end portion defining a lower shoulder on said "spindle supportably resting upon said upper race, an upper annular bearing fixed in the upper end of said cylinder, said spindle having a reduced upper end portion extending upwardly through the opening in said annular bearing, said reduced upper end portion defining an upper shoulder on said spindle bearing against the underside of said annular bearing, a circular'rotary table top section fixed centrally upon said spindle above said upper annular bearing, and an annular stationary table top section fixedly mounted on said pedestal and surrounding said rotary table top section, said reduced upper end portion being threaded and said rotary table top section having a nut secured to its underside into which the threaded reduced upper end portion of the spindle is threaded.

CHARLES A. BARTSCHY.

REFERENCES CI'TED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 668,522 Jolly Feb. 19, 1901 1,049,668 Carlson et a1. Jan. 7, 1913 1,053,742 Osvald Feb. 18, 1913 1,225,228 Eddingsaas May 18, 1917 1,775,577 Wilson Sept- 9, 1930 2,100,280 Goldberger Nov. 23, 1937 2,301,105 Yost Nov. 3, 1942 2,317,042 Evans Apr. 20, 1943 2,348,046 Yost May 2, 1944 2,385,170 Tedd Sept. 18, 1945

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