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Publication numberUS2624469 A
Publication typeGrant
Publication dateJan 6, 1953
Filing dateDec 17, 1948
Priority dateDec 17, 1948
Publication numberUS 2624469 A, US 2624469A, US-A-2624469, US2624469 A, US2624469A
InventorsAdamson Frank M, Cadwell Clarence J
Original AssigneeCadwell Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Foldable vertically adjustable table
US 2624469 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Jan. 6, 1953 c. J. CADWELL ETAL 2,524,469

FOLDABLE VERTICALLY ADJUSTABLE TABLE Filed Dec. 17, 1948 2 SHEETS-SHEET 1 /V I N VENTORS Clarence J Can we! l fiarzlfM/Idamw 1953 c. J. CADWELL EIAL FOLDABLEI VERTICALLY ADJUSTABLE TABLE 2 SHEETSSHEET 2 Filed Dec. 17, 1948 Patented Jan. 6, 1953 FOLDABLE VERTICALLY ADJUSTABLE TABLE Clarence J. Cadwell, Carpenteria, and Frank M. Adamson, Los Angeles, Calif., assignors to The Cadwell Corporation, Beverly Hills, Calii'., a corporation of California Application December 17, 1948, Serial No. 65,898

1 Claim.

This invention relates to a collapsible table and it is an object of the invention to provide an article of furniture of this kind which may be easily compacted for storage or shipment.

It is also an object of the invention to provide a table including a supporting structure constructed and assembled in a manner whereby the table top may be supported at different elevations.

Another object of the invention is to provide a table wherein the table top and the supporting structure therefor comprise separate units.

The invention consists in the details of construction and in the combination and arrangement of the several parts of our improved collapsible table, whereby certain advantages are attained, as will be hereinafter more fully set forth.

In order that our invention may be better understood, we will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure l is a view in perspective of a table constructed in accordance with an embodiment of the invention and in extended or working adjustment;

Figure 2 is a vertical longitudinal sectional view taken through the table as shown in Figure 1;

Figure 3 is an enlarged fragmentary sectional view taken substantially on the line 3-3 of Figure 1, a part being in elevation;

Figure 4 is an enlarged sectional view taken substantially on the line 4-4 of Figure 1, looking in the direction of the arrows;

Figure 5 is a view in bottom plan of the table top or unit as here comprised;

Figure 6 is a sectional view taken substantially on the line 66 of Figure 4; and

Figure 7 is a detail sectional view taken substantially on the line 1-1 of Figure 2, with the top unit omitted.

In the embodiment of the invention as illustrated in the accompanying drawings, the table comprises two units, one being a flat rectangular table top T, and the other the supporting structure S. The top T has end and side flanges 28 and 28, respectively, depending from its edges, the end flanges also projecting above the upper surface of the top, with the ends of the projecting portions 28a having relatively short side portions 28b extending inwardly thereof, substantially as shown in Figures 1 and 2.

The supporting structure S includes the elongated side bars I and 2 with the members I at substantially the longitudinal centers thereof connected by the interposed cross member 3 of a length determined by the desired spacing of the members I. The extremities of the member 3 are formed to provide the cylindrical trunnions 4, the outer end portion of each of which snugly fits within a socket 5, formed in the inner face of the member I and preferably adhesively held therein.

The members 2 are arranged inwardly of the members I and each of said members 2 at substantially its longitudinal center is provided with an opening 6 through which a trunnion 4 is snugly but freely disposed so that each pair of members I and 2 may be swung one with respect to the other to provide an X shape side member forthe supporting structure when in use.

The member 3 at the inner end of each of the trunnions i provide sa shoulder I having close contact with the bar 2 to hold the same at all times closely adjacent to the associated bar I.

When not in use, the bars I and 2 may be swung into complete overlying relation which is of particular advantage for storage or shipment. The extent of separatory movement of the ends of the bars I and 2 is determined by laterally disposed stop members 8 herein shown as carried by the bars 2 and extending outwardly therefrom for contact with the bars I. These stops are positioned a desired distance below the trunnions The particular purpose of the stop members 8 is to prevent downward collapse of the supporting structure and especially in the initial assembly of the table.

Interposed between the lower portions of the bars or legs I and the lower portions of the bars or legs 2 are the cross brace and spacing members 9. Each of the members 9 is preferably of metal and has its extremities continued by the downwardly disposed arms I0 which are in contact with the inner faces of the bars I and 2 and secured thereto by the screws II, or otherwise as may be desired.

Each of the arms I0 is continued by an extension arm I2 which projects beyond the adjacent lower end of the bar or leg I or 2 and is disposed on an angle of approximately thirty degrees with respect to the arm or leg I or 2. This extension arm I2 is disposed in the same general direction in which the bars or legs I and 2 have their relative swinging movement. The extension arms I2 carry casters or the like,

3 the casters I4 associated with the bars or legs I, being of a swivel type and the casters I5, carried by the bars or legs 2, being of a non-swivel type.

Pivotally connected, as at a, to the inner edge face of each of the bars or legs I and 2, closely adjacent to the extension arm I2, is an end portion of a channel member IS, the opposite or free end portion of which channel member be- Y ing provided with an extended curved chock.

brake plate I7. The channel member I6 is of such length, and the curved chock brake plate is on such a radius, as to bring the plate I'I, when the member I6 is swung outwardly, between the adjacent caster I4 or I5 and the surface upon which the supporting structure may be placed to hold the supporting structure in such position.

When not in use, each of the channel mem bers I6 is swung backwardly or inwardly against the adjacent bar or leg I or 2 and detachably held in such out of the way position by a leaf spring I8, or otherwise as may be preferred.

At substantially the same distance above the pivotal connections for the adjacent bars or legs I and 2, each pair or set of bars or legs I and 2 are connected by the transverse rods I9 and 26, respectively. These rods I9 and 2%, when the supporting structure S is extended for use, provide supports for a supplemental table leaf or shelf 2| which also serves as a medium to hold the bars or legs I and 2, in selected relative adjustment within certain limitations.

The leaf 2 I, at one end, is of a width to snugly fit between the bars or legs I while the opposite end of the leaf 2! is cut out at opposite sides, as '22, to allow said end portion to be snugly received between the bars or legs-2.

The wider end portion of the leaf 2I, adjacent to the opposite side marginal portions thereof, is provided with'the depending cleats or flanges 23, through which the rod I9 freely passes to allow the leaf to be readily swung into desired engagement with the second rod or thrown back between the bars orlegs I when the supporting structure is compacted.

The length of the leaf 2I 'is determined by the desired maximum spread of the bars or legs I and 2 and the free end portion of the leaf 2| is provided with the depending and transversely spaced cleats or flanges 24 extending lengthwise of the leaf. The under portions of these cleats or flanges 24 are provided with the longitudinally spaced notches 25, the notches of one cleat or flange being transversely'alined with the notches of the opposite cleat or flange.

The notches 25' of the cleats or flanges 24 are selectively engaged by the rod 28 in accordance with the desired spread of the bars or legs I and 2 and more particularly the desired elevation of the upper ends of said bars or legs I and 2.

The upper 'end'portions of the bars or legs I and 2 are also connected, outwardly of the rods I9 and 20, with the additional cross bracing and spacing members 26 and the upper extremities of the bars or legs I and 2 are oppositely chamfered, as at 27, to facilitate the proper placement of the table top or unit T.

The table top or unit T may be of any desired dimensions, it only being necessary that such top T, at its ends, be provided with depending abutments 280, such as cleats or the'like, spaced inwardly from the adjacent flanges 28. The spacing of the abutments 28c and flanges 28 is such that when the outermost notch 25 is engaged with the bar 20, the chamfered extremities 2'! of the bars or legs I and 2 will have engagement against the inner sides of the flanges 28, which form outer abutments in which assembly the table top T will be in its lowermost position.

In the present embodiment of the invention provision is made for adjusting the table top to one of three different heights. When the table top T is in its intermediate adjustment the extremities 27 of the bars or legs I and 2 contact with the outer abutment or flange 28 at one end of the table top T and with the inner abutment 280 at the opposite end. When the table top T is at its highest adjustment, the extremities 2'! of the bars or legs I and 2 are in engagement with the inner abutments 280 at both end portions of the table top T.

The table as herein comprised is particularly adapted for use in connection with portable moving picture apparatus although we do not wish to limit the use of the table for the one purpose.

We claim:

A collapsible table, comprising a fiat rectangular top having end and side flanges depending from the edges thereof, said end flanges projecting above the upper surface of said top and having relatively short side portions extending inwardly from the ends of the same, bar abutments extending transversely of the under side of said top parallel to said end flanges, pairs of legs positioned beneath the opposite sides of said top and having their upper ends selectively abutted against the inner sides of said end flanges and said bar abutments, pivot means connecting the legs of each pair in crossed relation at the approximate centers thereof, transverse bars extending between and connecting the complemental legs of each pair above said pivot means, transverse U-shaped arms extending between and connecting the coupled legs of each pair below said pivot means, a spreader element, pivotally engaged at one end with one of the transverse bars immediately above said pivot means, and other flanges depending from the opposite side edges of said spreader element and having sets of aligned notches formed in the lower edges thereof at and inward from the opposite end of the spreader element for selective engagement with the complemental of said transverse bars, whereby to vary the angular relation of the legs of each pair and the height of the table.

CLARENCE J. CADWELL. FRANK M. ADAMSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 631,556 Bushnell Aug. 22, 1899 867,816 Garret Oct. 8, 1907 l,7'l,7l8 Baumgartner Jan. 28, 1930 1,333,177 Rice Nov. 24, 1931 1,973,352 Michal Sept. 11, 1934 2,474,804 Schwarzbaum June 28, 1949

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US631556 *Apr 12, 1898Aug 22, 1899Harley G BushnellFolding table.
US867816 *Mar 8, 1907Oct 8, 1907Jean GarretIroning-table.
US1744718 *Aug 20, 1928Jan 28, 1930John A Dunn CoBaby-basket carrier
US1833177 *Jul 15, 1929Nov 24, 1931Leon J BakerAdjustable nursery and camp table
US1973352 *Jul 14, 1932Sep 11, 1934Storkline Furniture CorpAdjustable wheel and brake mechanism for baby carriages
US2474804 *Feb 18, 1947Jun 28, 1949Bilt Rite Baby Carriage Co IncAntitipping device for baby carriages
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2675285 *Oct 14, 1952Apr 13, 1954Eselle TerryVertically adjustable therapy treatment table having hinged end sections
US2717410 *Nov 13, 1953Sep 13, 1955Holloman Forrest EdwardCombined caster cup and slide
US2770467 *Jun 6, 1955Nov 13, 1956Earl Mowry JohnVertically adjustable table
US2927702 *Sep 11, 1957Mar 8, 1960HodockFolding table
US2994315 *Jan 25, 1955Aug 1, 1961Union Steel Prod CoPortable grill
US3120405 *Feb 19, 1963Feb 4, 1964Henry SoszynskiPicnic table
US3401650 *Jan 20, 1967Sep 17, 1968St Vincent Charity HospitalStep saver utility cart
US3871783 *Jun 13, 1974Mar 18, 1975Strolee & 0 Of California A DiConnecting device for load bearing members
US3897924 *Jan 10, 1974Aug 5, 1975Baer Harold JCollapsible support
US4125286 *Jul 2, 1971Nov 14, 1978Redel Ray HConvertible chair
US4138952 *Jun 10, 1977Feb 13, 1979Hodson Hollis CCollapsible tea table system
US5154441 *Jan 28, 1992Oct 13, 1992White Richard WFolding and rolling two surface table
US5318322 *Mar 5, 1993Jun 7, 1994William HomeCart for barbecue grill
US5542359 *Feb 6, 1995Aug 6, 1996Polries; Donald J.Collapsible fish cleaning table
US6182935Jun 9, 1999Feb 6, 2001S-B Power Tool CompanyFolding table for use with a table saw
US6916257Aug 5, 2002Jul 12, 2005Lifetime Products, Inc.Portable basketball goal system
US6942229Oct 31, 2003Sep 13, 2005One World Technologies LimitedCollapsible stand for a bench-top power tool
US7044867Nov 15, 2004May 16, 2006Lifetime Products, Inc.Portable basketball system
US7063220 *Jul 3, 2001Jun 20, 2006Jackson Angela WCollapsible clothesline
US7118500Aug 26, 2003Oct 10, 2006Lifetime Products, Inc.Portable basketball system
US7278646 *Oct 7, 2005Oct 9, 2007Bor-Yann ChuangMovable table stand
US7431672May 15, 2006Oct 7, 2008Lifetime Products, Inc.Portable basketball system
US7757999 *Jul 20, 2010Nanjing Chervon Industry Co., Ltd.Foldaway worktable
US8523123 *Mar 10, 2010Sep 3, 2013Rexon Industrial Corp., Ltd.Foldable tool stand
US20040092341 *Aug 26, 2003May 13, 2004Nye S. CurtisPortable basketball system
US20050070381 *Nov 15, 2004Mar 31, 2005Van Nimwegen Edward G.Portable basketball system
US20050090336 *Sep 8, 2004Apr 28, 2005Nye S. C.Poolside goal system
US20050093258 *Oct 31, 2003May 5, 2005Brazell Kenneth M.Collapsible stand for a bench-top power tool
US20060276272 *May 15, 2006Dec 7, 2006Van Nimwegen Edward GPortable basketball system
US20070045506 *Nov 2, 2006Mar 1, 2007Chongyi ZhangFoldaway worktable
US20070080488 *Oct 7, 2005Apr 12, 2007Bor-Yann ChuangMovable table stand
US20090299689 *Dec 3, 2009David Robert StubbenPortable Leveling Table
US20100229767 *Mar 10, 2010Sep 16, 2010Rexon Industrial Corp., Ltd.Foldable tool stand
USD493989May 9, 2003Aug 10, 2004Gsc Technology CorporationTable top
WO2007095698A2 *Jan 12, 2007Aug 30, 2007Darko MrdjaPortable grill for camping
WO2007095698A3 *Jan 12, 2007Oct 18, 2007Darko MrdjaPortable grill for camping
Classifications
U.S. Classification108/116, 126/9.00R, 211/149, 108/118, 182/154, 16/18.00R, 280/79.11, 126/25.00A, 108/99, D06/691.6
International ClassificationA47B3/02, A47B3/00
Cooperative ClassificationA47B3/02
European ClassificationA47B3/02