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Publication numberUS2380379 A
Publication typeGrant
Publication dateJul 31, 1945
Filing dateNov 4, 1942
Priority dateNov 4, 1942
Publication numberUS 2380379 A, US 2380379A, US-A-2380379, US2380379 A, US2380379A
InventorsCharles W Attwood
Original AssigneeCharles W Attwood
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2380379 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

July 3 1945- c. w. ATTWOOD TABLE 2 Sheet$-Sheet 1 Filed Nov. 4. 1942 INVENTOR.

CHARLES W. ATTWOO'D ATTORNEYS July 31, 1945.' c. w. ATTWOOD TABLE Filed NOV. 4, 1942 2 Sheets-Sheet 2 IN V EN TOR.


Patented July 31, 1945 TABLE Charles W. Attwood, Wayn Mich. Application November 4, 1942, Serial No. 464,408


This invention relates to tables or the like, and has for its principal object the quick building of a table or similar article of furniture of light, strong. skeleton framework with ready fastening of the framing and supporting members in desired positions. 1

Another object of my invention is the formation of a table or the like with its legs and framingv members substantially rectangular metal channel members having one side open to form a continuous slot, with means adiustably mounted in the slotted faces for securing the component members to each other, as well as for quickly positioning the table top, drawer slides, partitions, etc. in accurate alignment.

A further obiect of my invention is the provision of improved means whereby tables and like articles of furniture may be erected more quickly and easily than is now possible, with the expenditure of less effort and time in the field. and without the necessity of drilling or forming the component members. In fact the only tool necessary to be used, after the channel members have been cut to proper length in the shop, is a wrench, while a saw is also necessary ifthe channel members have to be cut in the field.

A further object of my invention is the provision of a novel channeled supporting member for tables and the like, preferably square-formed with rounded corners having one side open to form a continuous slot throughout its length. the side walls'of the slot being formed of inturned flanges forming clamping ridges to provide grips for tying together and bridging'the opposite sides L of the slot by a grooved nut, thereby completing the hollow squareat points where bolting is done and concentrated load is applied.

A further object of my invention is the arrangement of screw-threaded holding means for gripping the clamping ridges of such channel members at any point along their entire length, with provision for readily introducing such holding means into the interior of the channeled member through such slot, quickly adjusting the position of the holding members within the slots whenever desired. and maintenance of the holding members in selected positions as long as'desired.

other objects and advantages will be apparent from the following description, wherein reference is made to the accompanying drawings illustrating the preferred embodiments of the invention and wherein similar reference numerals desig- In the drawings:

Figure iis a perspective view showing a table I constructed in accordance with myinvention. with the table top removed.

Figure 2 is a vertical sectional view taken substantially on the line 2-2 of Figure 4, and showing a table similar to that shown in Figure 1 prior to the mounting of drawer slide supports, and additionally showing the table top and bracing ins-ans connecting the lower portions of the table egs.

Figure 8 is a composite perspective view showing one of my improved screw threaded holding means with its parts separated and an enlarged section of the slotted channel supporting members with which the holding means cooperates.

Figure 4 is an enlarged detail perspective view of one corner of the table illustrated in Figure 2.

Figure 5 is a detail vertical sectional view taken substantially on the line 0-8 of Figure 1,

Figure 6 isan end elevation of a sli htly modifled table construction wherein the table top may be secured in various tilted positions. v

Figure '1 is a vertical cross sectional view through the table shown in Figure 8.

Figure 8 is a vertical longitudinal section taken substantially on the line H of Figure 6.

Referring now to the drawings. numeral ll designates the legs. il longitudinal front and rear frame members. and it the side frame members,

of the supporting framework structure for my improved table or similar piece of furniture.

These members It, It and II are of identical hollow rectan ular material. herein shown as squareformed with rounded corners and with one face thereof slotted throughout the entire length of the material. Such channel member is best shown in perspective in Flaurea'S and 4.

The side walls of the slot are formed, of in-.

turned flanges ll. herein termed clamping ridges? with their free edgea'beveled to impart a sharpened or pointed cross section to facilitate securance of clamping nuts II in various selected hate similar 'partsthroughout the several views. 5

positions along the flanges i8. Oneotthe clamping nuts is is shown in perspective, with parts broken away, in Figure 3, and such nut is nor--v rower than the slot in the channeled members to permit ready insertion of the nut through the slot when properly turned. The length of the nut ll. however. is greater than the distance between the clamping ridges it, so that after the nut is inserted in the channel, it can be maintained in position simply by turning the nut at right angles to the slot, so that its ends underhang and are retained by the flanges it. The face oi the nut hardened teeth or serrations B which, when the nut is drawn up tight, bite into the beveled extremities of the flanges It to assist in retaining the nut in desired position by positively looking it against longitudinal sliding movement along the flanges.

A spring Ii is preferably secured to and pro- ,lects from the opposite or bottom face of the nut I l, being large enough indiameter to allow the stem of the bolt I! to pass freely therethrough, as shown in Figure 5- The spring is compressed against the wall of the channel member opposite the slotted wall thereof when the nut is in place, friction being thus imposed on the nut to' temporarily hold it against sliding in the channel due'to its own weight, or as the result of vibration prior to its securance by turning the bolt home. This will be seen to enable .the placing of the nuts in advance, even in vertically arranged .channel members, without danger of' displacement, while the parts to be may be secured in place at any time simply by thrusting the complementar bolt positions is into the previously positioned nuts and tightening the same. The length of the nut is substantially equal to the distance between the side webs of the channel members.

one bracket ll, substantially as shown in Figure 4,

the supporting frame work for my improved table can be readily and rigidly assembled into substantially the shape shown in Figure 1. The adiustable feet I! may be secured at the lower extremities of each leg III, as best shown in Figure 2.

Such feet' may comprise right-angled brackets havingthe upstanding flange apertured to receive ,a bolt 18 and a horizontal flange-apertured to receive a oastor or formed with trally depressed portion to facilitate easy sliding of the table along a floor. The bolts l8 thread a rounded ceninto slotted nuts ll positioned within the legs ill adjacent their lower extremities. Similar right 1 angled flanges ll may be secured at any desired I heights upon the legs ill to support leg braces II jasshowninl lgurez.

' Diagonally opposite. corners of'the nuts are rounded, substantially as shown at "C, so that the nut may be readily turned from the initial position of insertion; to its position of use, as by a quarter turn clockwise. At this point further] rotation of the nut is prevented by the unreduced corners,,which thus assist in holding the-nut against turning as the bolt is being tightened, and also insure proper alignment of the slots 'IIA with the clamping ridges ll during the initial positioning of the nuts. Th bolts is may be of conventional or any desired type.

In assembling my improved table, the legs and framing member are cut to predetermined lengths, preferably in the. factory, and the side members I: are first secured to the opposite ends of the-front and rear longitudinal members ll,

forming the top rectangular table frame, to which the legs II are afterward assembled. As best .ahown in Figure 4. the bracket members I I and I. are flrst secured by two bolts It to the opposite endsof the front and rear longitudinal members,- which extend the full length of the table framing to the edge of th bracket members and over thetop end of the legs, one bolt is passing through aperture of bracket l1 and one bolt ll passing through aligned apertures in brackets l1 and II, after which the side members I! are attached to bracket II by means of two bolts ll, thus forming a rectangular top frame of four structural members with the two bracket memhers I! and is projecting downward at each corher having one hole in bracket ll onlyvand one hole formed b3 the aligned holes of i1 and I8 to which the legs can be attached at any time. This provides two bolts, for stiffness, in each of the three structural members meeting at the corner, and the legs is can be dismantled, when desired. for at, handling or storage, by removing formed of channeled material identical with that of the legs and framing members, substantially Should it be desired to secure a shelf upon such braces Il, brackets 22 may b secured at any desired} positions within the slotted face of the braces II with the upper flange of the brackets 22 bent parallel withv the lower securing flange thereof,- and apertured to permit the passage of a :crew' or bolt to fasten the shelf upon the braces 40' Drawer slidesmaybe positioned at any desired points along the longitudinal frame members ll,

- and as best shown in Figure 1, one side of the preferably secured to the upstanding flange of the channel member I! can be utilized for positioning one drawer slide, while'a cross member, as '23, secured intermediate the ends of the longitudinal frame members I I. The cross member 28 is formed of channel material identical with that of the legs and framing members. and has its slotted face arranged toward the side member I! carrying the other drawer slide. As best shown in Figures 5 and 8, the drawer slides may comprise right angled brackets 2|,- with one flange thereof secured through apertures 18. The lower flanges of the opposite drawer slides extend'toward each other and their upper surfacesare engaged by the upper flanges of the short right-angled members 2 0 secured adjacent the rear corners of the sides of the drawer 21.

To restrain tilting of the drawer during sliding movement, a small right angled bracket 28 is members 28' withfts upper face clearing but in close proximity to the lower face of the drawer slide 24.

The table top 20 may be firmly secured to the side and longitudinal framing members, if desired, and as best shown in Figures 2 and 4, rightangled brackets 30 are'arranged in the slotted faces of the framing members wherever desired. The brackets 30 are apertured to permit the passage of bolts It through the upstanding flanges of the brackets to thread into suitably positioned slotted nuts it within the framing members, while the horizontal flange of each bracket 30 is apertured to receive a securing implement, such as wood screw 3| turned into the lower face of the table top.

In Figures 6 to 8, another method of fastening the table top to the framing members is shown so as to permit tilting of the table top to various adjusted positions.

As best shown in Figure '7, the table to! 290 is secured to the forward longitudinal framing member H by hinges 32, whereby the rear extremity of the table top may be tilted substantially as shown in dotted lines in Figures 6 and 7. A pair of slotted guides 33 are preferably secured to the under side of the table top 290, as by having their upper extremities pivoted upon brackets 3t secured to the table tops while bolts 35 extend through the slots in the guides 33. The bolts 35 are carried by brackets 36 secured in desired posi- '1 bolts I8 passing through the apertured of each bracket 86 and threading into slotted nut ll positioned within the side framing members. Wing nuts 31 or the like are preferably threaded upon the .bolts 35 to clamp tions by upper flang the slotted guides 33 in various positions tohold the table top 290 at desired angles of tilt.

I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive; reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

What I claim is:

1. A table comprising leg and fram members of identical material, said material consisting of substantially square-formed channel members having slots in one face extending from end to end of the material, means for securing said leg and frame members to each other without deformation of either, comprising apertured brackets engaging the slotted faces of a plurality of said members, said brackets being arranged in 1 pairs, the members of each pair having register,-

ing openings and one member of each pair having a right angle bend and having one of its anguiarly disposed portions arranged at right angles to the other bracket of said pair and apertured, bolts extending through said apertures and said slots, and nuts arranged within said channel members and threading with said bolts said pairs of brackets being located at the junction of a leg and said frame members and being fixed to and thereby fixing together the said leg and the frame members.

2. A table comprising leg and frame members of identical material, said material consisting of substantially square-formed channel members having slots in one face extending from end to end of the material, inturned flanges forming side walls for said slots, means for securing said leg and frame members to each other without deformation of either, comprising apertured brack ets engaging the slotted faces of a plurality of said members, said brackets being arranged in pairs, the members of each pair having registering openings and one member of each pair having a right angle bend and'having one of its angularly disposed portions arranged at right angles to the other bracket of said pair and apertured. bolts extending through said apertures and said slots, and nuts having slots on their front faces spaced to fit over said inturned flanges said nuts being threaded over said bolts said pairs of brackets being located at the junction of a leg and said frame members and being fixed to and thereby fixing together the said leg and the frame members.

3. A table comprising leg and frame members of identical material, said material consisting of substantially square-formed channel members having slots in one face extending from end to end of the material, smooth inturned flanges on opposite sides of said slots bevelled at their free edges, means for securing said leg and frame members to each other without deformation of either, comprising apertured brackets engaging the slotted faces of a plurality bolts extending slots, and nuts within the channel members having slots on their front faces spaced to fit over said inturned flanges and initially slidable freely over smooth surfaces of the inturned flanges and formed with hardened teeth to bite into th bevelled edges of said flanges when said bolts are tightened to secure the nuts in tight fixed engagement with said flanges, whereby movement of the nuts in any direction is prevented.


of said members, through said apertures and said

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2436056 *Jul 11, 1944Feb 17, 1948Prothro Sr Gardrad LestarjetteFolding table
US2480559 *Mar 12, 1946Aug 30, 1949Derse Sr Arthur FLeg construction for table frames
US2537128 *Nov 24, 1947Jan 9, 1951Giberson FrankDrop-leaf table
US2628147 *Oct 22, 1948Feb 10, 1953American Hospital Supply CorpBedside table structure
US2696139 *May 28, 1952Dec 7, 1954Charles W AttwoodNut for locking engagement with unistrut
US2703663 *Nov 24, 1950Mar 8, 1955Connett Soloman LeonardClosure plate holding means
US2717819 *Jan 24, 1952Sep 13, 1955American Hospital Supply CorpPanel-mounted cabinet
US2737268 *Apr 3, 1951Mar 6, 1956Ralph W SmithStructural member and connection means therefor
US2855637 *Feb 29, 1956Oct 14, 1958Otis Elevator CoElevator entrance sills
US2961280 *Mar 23, 1959Nov 22, 1960Jentzen Miller CompanyLanguage laboratory student station
US2972506 *Apr 4, 1958Feb 21, 1961Burroughs Mfg CoBench furniture
US3009582 *Sep 8, 1958Nov 21, 1961American Metal ProdStorage rack
US3070398 *Aug 10, 1959Dec 25, 1962Can Rite IncCan carrying apparatus
US3136517 *May 23, 1963Jun 9, 1964Gariepy Products IncAdjustable warp-resisting leg holder plate
US3143981 *Mar 23, 1962Aug 11, 1964Tassell Hardware CompanyDemountable partition
US3150903 *Oct 22, 1962Sep 29, 1964Vega Ind IncFrame structure for cabinets and the like
US3178244 *Mar 31, 1961Apr 13, 1965Stanley WorksModular enclosure
US3297383 *Apr 29, 1965Jan 10, 1967Equipto Electronics CorpCorner construction for a cabinet
US3327657 *Mar 4, 1966Jun 27, 1967TeclabLaboratory table
US3334850 *Sep 24, 1965Aug 8, 1967Oil And Gas Supply CompanyConcrete machinery base and method of making same
US3790121 *Nov 15, 1972Feb 5, 1974Brock White CoColumn form and clamp assembly
US3813179 *Apr 20, 1972May 28, 1974Alum Elec Structures IncStructures formed from structural members
US3857622 *Jun 1, 1973Dec 31, 1974Steelcase IncNd panel support system
US3862789 *Jun 1, 1973Jan 28, 1975Steelcase IncSuspended pedestal desk
US3873221 *Oct 10, 1973Mar 25, 1975Steel Equipment Co LtdFrame joint
US3883196 *Oct 11, 1974May 13, 1975Steelcase IncEnd panel support system
US3938545 *Nov 15, 1974Feb 17, 1976International Telephone And Telegraph CorporationAccess cover with moveable attaching devices for underground pumping stations and other installations
US3952453 *May 31, 1974Apr 27, 1976Ossie AmburgeySafety barrier
US4073113 *Aug 18, 1975Feb 14, 1978Profiles Et Tubes De L-EstBuilding frame
US4130977 *Jan 10, 1977Dec 26, 1978Versabar CorporationConcrete insert
US4354655 *Aug 22, 1980Oct 19, 1982Hengst Erwin MMounting base construction
US4391546 *Jan 6, 1981Jul 5, 1983Bicc Public Limited CompanyScrew fixing
US4422691 *Jun 17, 1981Dec 27, 1983Ignaz VogelPassenger seat
US4560130 *Dec 10, 1984Dec 24, 1985Square D CompanyTrack bolt fastener
US4665838 *Sep 26, 1985May 19, 1987Minshall Aubrey WShelving unit
US4901958 *Oct 11, 1988Feb 20, 1990Kelso Michael VApparatus and method for suspending pipe rack
US5118233 *Mar 15, 1990Jun 2, 1992T. C. Bolt CorporationPre-setting and controlling the tightening of stud bolts and the like and novel stud bolts
US6302035 *Jun 14, 1999Oct 16, 2001Kokuyo Co., Ltd.Desk
US6347592 *Jan 13, 1998Feb 19, 2002Roy E. GessertModular workbench and kit therefor
US6521837Feb 23, 2001Feb 18, 2003Universal Electric CorporationElectrical busway housing system and connection means therefor
US6751914Mar 1, 2002Jun 22, 2004Steelcase Development CorporationPost and beam furniture system
US6905110 *Nov 18, 2002Jun 14, 2005Alexander BrownFinished-stair-tread adapter for a modular railing system
US7052222 *Dec 1, 2004May 30, 2006Sw Stanzwerk Glarus AgFastening element
US7249624Jan 8, 2004Jul 31, 2007Steelcase Development CorporationPost and beam furniture system
US7461484Feb 14, 2003Dec 9, 2008Steelcase Inc.Customizable partition system
US8250829 *May 22, 2009Aug 28, 2012Mainstream Energy CorporationModule attachment apparatus
US8251326May 22, 2009Aug 28, 2012Mainstream Energy CorporationCamming clamp for roof seam
US8376298Aug 2, 2011Feb 19, 2013Mainstream Energy CorporationUniversal end clamp
US8485614 *Oct 28, 2010Jul 16, 2013Metal Fabricating CorporationBase stand with drawer
US8505863Aug 21, 2012Aug 13, 2013Mainstream Energy CorporationCamming clamp for roof seam
US8539719Jun 9, 2011Sep 24, 2013Mainstream Energy CorporationModule attachment apparatus
US8585000May 22, 2009Nov 19, 2013Mainstream Energy CorporationUniversal end clamp
US8667908Apr 22, 2011Mar 11, 2014Steelcase Inc.Frame type table assemblies
US8689705Apr 22, 2011Apr 8, 2014Steelcase, Inc.Reconfigurable table assemblies
US8801349Aug 2, 2011Aug 12, 2014Sunrun South LlcUniversal mid clamp
US8939092 *Sep 29, 2011Jan 27, 2015Daniel KorbTable system
US9057195Jul 18, 2013Jun 16, 2015Sunrun South LlcCamming clamp for roof seam
US9185974May 25, 2012Nov 17, 2015Steelcase Inc.Frame type workstation configurations
US9210999Apr 22, 2011Dec 15, 2015Steelcase Inc.Frame type table assemblies
US9215930 *May 22, 2014Dec 22, 2015Urstco, L.P.Storage device
US9341206 *Mar 12, 2014May 17, 2016Panduit Corp.Flange for support channel assembly
US20030122117 *Nov 18, 2002Jul 3, 2003Alexander BrownModular railing system for construction sites
US20040020137 *Feb 14, 2003Feb 5, 2004Battey David J.Customizable partition system
US20040055232 *Sep 22, 2003Mar 25, 2004Roger JetteRaised floor system and support apparatus
US20040144058 *Jan 8, 2004Jul 29, 2004Zeh Mark A.Post and beam furniture system
US20050180842 *Dec 1, 2004Aug 18, 2005Franz MullerFastening element
US20050274940 *Jun 14, 2005Dec 15, 2005Alexander BrownModular railing system
US20100281793 *May 22, 2009Nov 11, 2010Mcpheeters GregModule attachment apparatus and method
US20100284737 *May 22, 2009Nov 11, 2010Mcpheeters GregCamming clamp for roof seam
US20110148264 *Oct 28, 2010Jun 23, 2011Golias Jr Bernard JBase stand with drawer
US20110232222 *Jun 9, 2011Sep 29, 2011Mcpheeters GregModule Attachment Apparatus and Method
US20110233358 *Jun 9, 2011Sep 29, 2011Mcpheeters GregModule Attachment Apparatus and Method
US20120073480 *Sep 29, 2011Mar 29, 2012Daniel KorbTable System
US20140259566 *Mar 12, 2014Sep 18, 2014Panduit Corp.Flange for Support Channel Assembly
US20150150370 *Jan 23, 2015Jun 4, 2015Dsa International, LlcTable System
US20150238011 *May 22, 2014Aug 27, 2015Urstco, L.P.Storage Device
DE1018267B *Nov 26, 1954Oct 24, 1957Charles William AttwoodZur Befestigung von Bauteilen an einem U-foermigen Profiltraeger dienende Klemmutter
DE1110473B *Nov 12, 1954Jul 6, 1961L A Darling CompanyVerbindungsklammer fuer Profilschienen
DE1119059B *Aug 30, 1957Dec 7, 1961Warren Russell AttwoodKlemmutter
DE1152852B *Jun 18, 1958Aug 14, 1963A V R Achat Ventes RepresentatAnordnung zum Verbinden von auf Gehrung geschnittenen Profilen
DE1194203B *Aug 19, 1957Jun 3, 1965Emile WodliVerbindungselemente fuer Gerueste und Gestelle
DE29619965U1 *Nov 16, 1996Jan 9, 1997Festo KgVorrichtung zum Verbinden dreier Längselemente
DE29806711U1 *Apr 14, 1998Aug 12, 1999Fischer Artur Werke GmbhWinkelverbindungselement
EP0275001A1 *Nov 12, 1987Jul 20, 1988Austria Metall AktiengesellschaftContainer for coach work parts
U.S. Classification248/163.1, 411/112, 411/970, 312/330.1, 52/710, 248/228.1, 211/189, 312/351.3, 411/959
International ClassificationA47B85/02, F16B37/04, A47B13/00
Cooperative ClassificationF16B37/046, A47B13/003, Y10S411/959, A47B85/02, Y10S411/97
European ClassificationA47B85/02, A47B13/00C, F16B37/04E1