US1333035A - Extensible table - Google Patents

Description

H. NONNAST AND w. TESAR.

EXTENSIBLE TABLE.

APPLICATION FILED MAY 10, 1915- RENEWED AUG. 9, 1919.

Patented Mar. 9, 1920.

4 SHEETS-SHEET l.

H. NONNAST AND W. TESAR.

EXTENSIBL TABLE.

APPLICATION FILED MAY 10. 1915. RENEWED AUG. 9, l9l9.

1 ,333,035. Patented Mar. 9, 1920.

4 SHEETS-SHEET 2.

H. NONNAST AND W. TESAR.

EXTENSIBLE TABLE.

APPLICATION FILED MAY 10, I915- RENEWED AUG. 9, 1919.

1,333,035. Patented Mar. 9,1920..

HEET 3.

Hi. INQNNAST AND'W. TESAR. EXTENSIBLE TABLE.

APPLICATION FILED MAY 10. 1915- RENEWED AUG-9,1919.

1,333,035, Patented Mar. 9, 1920..

4 SHEETSSHEET 4- mm i I v UNITED STA nnnmemi iwn s aiwnmmwen; QF eincAeo; 1313mm, 7

To all whom it may] mm;

sible Tables, "of which' the fellowingis'ta' i V 1. n V igui el 1s ,a bottom plan VIEW of an extensibn tableinnon-extended POSliJlOIl, em-

Be itknown that we, HERMANN NONNAST and WIL'HELM TESAR,- citizehs Of the United Stiites of America, and residents of Chie'ago', C601: county-Illinois, have inventedn certz'iin new and iis'eful Improvement in Exten- "Our invention relates to irnpi oi eriiente inextensionitziblesia'nd' one of the 0b ec ts of I V v V sl'ons, and two side our invention" is toprovide an improved ex;- tehsion table Which-Will be simple," durable and reliable, in construction 'and' effective andeflicie nt in operation. 1

' er Obj ectS of our'invention'will ap ar hereinafte V t t Our intention: conistsfinithe "fetttiil'ee of novelty exemplifiedin the construction, c'omb'in'a'tien anctafi'angementx of parts hereinafter described, shown in the acco'm p ztnyg 'e 'pai'ticulal 'ly set ing dfaWingS'end moi ferth'in the appended claims.-

" i to el p nying draw;

1 bodying four invention, the. le ge being relmoved 'andi pthe leg su pporting bridges heating parts;

Fig. '2 is I a longitudinal sectional View s't'ant-ially'en the line 3- 3 ofFig. 1'; i

3 "View 011 the line 4 4o;f Fi ,-.1,showingthe;

structure associatedwithbne enid of the' table for extending thztt end. Thievienf shows the end wing of the table? partially tuned-011mm with the ex'tensipnfle zttlend Y it parts almost re'aidyr'to rise n ppsltlon;

- Fig. '5 is a viewsimilar, to F1 t except I "'Fig.' 3 is a transverse. s'ectionalfview siibl {*Figfli is a somewhat enlarged Sect on thzitthe enctfwing been fnrtherextendeld and the extension leaf is i-abOUt ready to rise into the plane at the top otthetable. e Fig. 6 is a View similanto Figs'fitandh' except thit the ljeafha been Operated and h fas risen intothe planeo fjthe ftOp pt the. table;

Fig.7 189; View similar t'o Fig'sg i; {and 6', butjsho'wing extension "leaf eompletely in' position Y hFigiB is a idem ectibi 'r View sub tfan-f partly 1 broken v away" to Sho'WlfOthe open}- mechanism in 'conne'eti'en with one bf'the ex;

tension leaves,

structure shown" in the drawings a eentiil'hodypbi tion'h which iss'ubstgiii shown-in Fig- '1. The body portion table is proiq'i ded with v of the Vbbdy Section V I Afzilthongh"obj ieusly "thepdslt on'or character of'the supporting members inayjbe of 'thnt type fer the p'artim V the lower {edges Of the side apronsflflfas i, IFQ thiereasbn "t e. hotly sect on has, two}; bridge] nielnbeifsf 4 at. s" dfil fwhichfthe legs 3 are attached;

" iiid, snbtzi ntial yetf conipai'ativelyi light tx-.; ;ht: structure and-,movides thei jdrebef V specebeneeth the. top 'boa'rdl to? th efextene'. sien leaves: qr sections and other" Operating" parts. fAl'eng theunder edges 0f .the,jt6p

hotiid 1 are "angle irons 6 jbne of the} flanges of whiChiarbfastened t0 and u rt th P b'ard 1 i h bfhenfiahge is attached t tn the fsic'lleaprons. *Thieee angle irQns rein force the? sti'ii cti life, render ,it' rigid] and st'fbng; hold the ipz rts fpei'manently in j-thei 3 proper relation and t11ns entire1Veliminate 'Wn'ipingfdfthe ho'dy-vs ection v Byithus "iiifercihg the' bedir section 1 the otherdpeifv ating partelof the 'strncturefcan be main;

herifzbntaljflgmgesyqf these angle reinforcing members are SeTcuredt the under sufface of V A T df' e fi nsf w ne's. B have top boards v 10} and enryed .th top .beardii This 'leaves aj'clear, nneb "st'ructed space or guideway -feij"the eziteh 1 sion leaves and permits-them t9 lie close npj' under the top beard'an'd lessens thejheiqht tqWhi'ch theymilst he'elevatedgto,bring th'einjinto. position;

mounted on the outer ends of slides, being 7Q fastened to the under, sides of the top boards 10, so that these slides serve assup ports for the end sections and at the same time permit said end sections to bemoved longitudinally. They have a tongue and groove connection 14; with a fixed slidemember 15 which iscommon to and pos tioned H between the correspondingslides-12 and 13 of both sets thereon .For convenience the fixed members aretfastened' to the bridge members 4. The slides 12 and-13 are prefera ably as longfaas the intermediate orzfixed members 15 so that they will have a com,- arativelylong bearing'onsaid fixed memer, even when thetable ,i s-jfully extended.

he. slides are prevented from separating from the. fixed members l5y by, bridge straps l6 which'as shown span For, embrace the three members 12,13 and afdof each group and'whichare fastened to the fixed members 1 15.,This construction is preferable; tothe' more expensive dove-tail connection usual in iextension tables and facilitates assembling of the parts. .The particularstructure sh wn in'the drawin s has two extension'or' extra, leaves or sections which normally occupy positions in the same plane beneath "theymain section'top board l, but when the end'sections or wings 1B are, .pu1led out, the V icaves C, are adapted to be automatically raised orelevated -jinto,;the plane of the top i boards ly and lOQandfginterposedizbetween saidl boardsi 7 ,One of-[the leaves is .associatefdw th space prov dediat ,eaohend of the bcdy sectlon when the endsectlonls pulled p out. T Each leaf is supportcdzbyga;pair;.of cleatsldand 17 transversely,dispesed across its underside.

These cleatsiare r'connected withlthe slides 12and13by the links 18 andiltll Thesellinks arepivotally connected to thecleats and "to 'the slides so that they form parallel motion connectionswhich per- 7 orparallel withgthetop boardsl audit-10; The inner links l8 are extendsddownwardly;

mitthe leaves Cato fbe' swung bodilyin an arc toward the corresponding end section B. although maintaining thefleathorizontal below the slides. l 2 zandfl3 and are adapted to strike onengage stops: 20"which, upon 1 the cont nued pulhngQoifthe slides outwardly, causes the'links 18 to. swing about their pivots 21and throw orraise the leaves 7 into the plane ot the topboardsliand 10 I as shown inFigs. 4:, 5, 6, and'7t gThis occurs.

a after the slidjes lQ and raises carried'the leaves outward in their-originaljplane to the 1 position in the;openmpacrisbettreen the top parts areiso proportioned fthatwheniithe j leaves haverisenttojtheir proper height their t boards 1 and 10.. These spaces"arewid'er than the wildth of the leavesso as'to provide room-"for, theleaves to travel upwardly-and clear the es edges of, the to board 5. The

q ge vill abuti he se i22et t j-t9P ing the slides boards l0 and the leaves will thereby be prevented from moving beyond their proper the links or levers 18 and 19 stand substantially vertical and take the weight of the leaves and the boards to which said leaves may be subjected, ,When'the' extension leavesare to be returned and 'the tablecob lapsed or the tablefshortened in length,the end sections B are pulled outwardly until lsuflicient space is provided in "which the leaves may again be swung downwardly into their original plane, after which the end sections B, are again pushed inwardly-until their edges 12', abut and interlock withtthe edgesotthe topboard ls This carries the, leaves, and slides to their normal position beneath the main'section of the table I In orderthat; the depending endsof the lever links 18 may pass the bridge members tin both directions of movement the bridge members are provided. withg grooves 24L whieh register with thepaths ot'imovement V .ot'said links. it will be noted that-the projectingends of thesleverlinks 1 8,which are adapted tostrike the stops 20, are peculiarly curved-so that afterthey strike the stops and V lot operate to swing the leavesdnto:substamV tially the position shown in Fig, 6, they:

swing about their pivots to such anextent thatthey-oan pass over and beyond the stops 20: -.In other words, they are so proper} tioned that theyflact' against the stops 20 untilthe'extensionlea f is almost in the posi "tion asshown in Fig. 6, and then they clear the stops 20 and their operating ends are carried past the stops 20." 'Ilie momentum which is impartedto the leaves while they are rising is sutlicient to carry the leaves into abuttingposition with the edges 12Mof-the' end sections B during the period when the endsofqthe lever linkslSleavethe stops 20 to pass over and beyond them: The results lever links beyond the stops20; This action occurs during; the .openingior extending operation of the table. Assume now that the parts are in the extended positionshown in Fig, 7, and. ,that thetable is to be {shortened orreduced in length. As beforementioned,

this is done by pullingiout the end'section B h l a su c entsp se is pr vid d w i h i of these operations;therefordposition the 7. the leaf Inay--swingdownwardly into its; lower rposition. The parts will be in the a position shown inFig. 6. Having extended parts to this position, the extension leaf is then i swu ng', inwardly and-* downwardly jaboutthe pivots 211of-the links" 18 and This, of course, swings-the fleve'r links :18

aboutsaid pivots and positions their operatmg or; projecting ends below the plane of the stops 2'0.

able inj'order'to permit theends jofthe' lever links 1 8 to pass when the end section is pushed inwardly to close the table; For this reason we, therefore, make these stops in the form of levers -(see" Fig. 1),which' are pi'voted at insuitable slots or depressions in the underside of thefixed slide members lever links. 18 topass, and they will remain so untiljrestored to a dropping position ready for the' next operation of extending the table.

1 I 'In -order, therefore, that these stop levers maybe restored-to operative position,'I pro yide them with ends'or arms 31 projecting on" the opposite sideof the fixed members 15.

' Theserestoringends 31 are adapted to be struck or-engaged byprojections 32 fastened to: the aprons 11' ofthe end sections 13. 40

They arefpreterably in thefo'rm of metal L strips having 'their'ends, as shown clearly .in Fig. 1, so'arranged"that theyiwillstrike the ,ends 31 of the stop levers, just as "the edges l Leo top board-1, the leaves would have to be otthe top boards land 10 cometogether in, the act of closing the table. These restoring members 32, therefore. swing the top ends 20 again outwardly into position to V [engage the"leverlinks 18 when'fth'e table is again extended; As previously explained, the end 'sect'ijons'B must bepulled outwardlyuntil there is sufiicient space between-their edges12 and the edges of the main table board 1; to perm t the extension leaves to risein I arcuate'pathsiof the plane 'ofthetable top.

' extension leaves were fixed to the transverse- .icleats'l6 and l7fthere'would bea'ffixed-space between the outer. edges of the extension [leavesandthe edges 12 of the end sections.

It will readily be seem-therefore, that if the Hence when the tableis reduced-in length and "the leaves jpositioned beneath the main f moved inwardly from. the edges of the top board a distance corresponding to "the distance between the edges-ofthe leaves and V 7 But since these projecting i ends are now on the outer side of the stops f 20, it is necessary that the stops-20 be-mow.

close the table.

the edges 1201 the end sections. The space, 1

therefore, between the outer'edges or the leaves and thecdges of the main top board, 1

would be .wastedso far as the width of'the Y leaves are concerned, and'in order'to obtain a niaxiinumavidth of leaf and to thereby utilize thiswaste space, we'provide, a lostmotionl connection between .the leaves and the transverse cleats 1 6 an'd'17 We'obtain this lost-motion connection b rovidin 3 P r:

guide-ways in which the cleats 16 and 17 may have -a sliding movement. guid'e ways in the present structure are preferably inlthe'form of transversecleats 35 which are L,-shaped in section 'andwhich are permanently fastened by :SCIBWS '36 to the undersideof the leaves and whichv con fine the cleats l6 and 17 between themselves and the corresponding slide inem'bers12 and 13,"respectively. Since these cleatslfi and v 17 have a sliding movement .in their lguidecleats 35, and are connectedfto the slide These members 12 and 13, respectively, bymean's of the links 18: and 19, r'esp ectively, the end sections B may be pushed inwardly to close the table, carrying the slide Inembers and i leaves therewith until the outer edges of'the' leaves register or are positionedfdirectly be- .low the corresponding edges of the top board I --1, as shownin Fig; 2. The end sections'B, 1 however, may be moved fartheninward "to take up the wastespace andabut their edges 12" against theedges of'the top board 1't0 movement of theend sections carrieslthe cleats 16 and 17 inwardly beyond the guide This continued inward cleats 35, asshownclearly in Fig.1 This I construction, therefore, permits an extension leaf foreach end of the table substantially lone-half, ofjthe width of the main top board l'.-that istosay, as shown clearlyi in Figs.

1 and 2, the two leaves C, taken together, occupy substantially the same width .ofspace that the main top board 1 occupies." In

opening thetable, it is evident that when the" end sections B are pulled out and carry with.

{them the cleats 16 or 17 until: the endso'f said cleats 16 or 17 register lwitlizthe width 1 oftheir particularfleaf, as shown-clearly in Fig. 5, 'andin order toprevent said ccleats from moving any, tarther or beyond thew leaves in an. outward direction, I provide both the cleats 16 and17 andithe cleats 3,5 "with 'st'op menibers' 38, as shown 1 clearly in Figsft, 5,6,7, and 9,1 adapted .toqengage .when'the' endsfotthe cleatslfiand 17 reg I V ister with/the edges of their respective;

leaves As-soon then as" the top members engage the leaf, the leaves willbe positively carr ed by the'cleats 16a'nd 17 into position,

the several: parts, that when thes'ection' B is pulled out intheoperation of extending the table, the leaf will [move withrtheslideg I "asjpreviously described, It may'fhappen, 1 however,ion;accountof the'frictionbetween' i 50 V saidslidemembers' and to said cleats to form parallel lllOlilQIl connections between the cleats and shde membersy means operable f andywheni the operating links 18 arrive at the stops ,20' the leaf and the cleats will be inthe same relativepositi'on as they were when the table is collapsed. Further movement of the extension B outwardlyto cause members 15. These stops or pawls are'pivoted at 4:0 in slots 41 provided therefor, and

theirouter ends 42 are heavy so as to main- I tain the ends of the stopsor pawls above 7 the surface of the slides ina-n outward direc- ,tion of movement of the leaf. On the underside of the leaves are transverse slots 4:3 to permit the movement of the leaves. At a point inthe slots 13, which corresponds to the position in which the lever llnks 18 are b about to engage the. stops 20, thereare small 1 'cross plates 44 which engage the stops 39 25 and hold the-leaf until the cleats 16,01" 17,

as the caseimay be, aremoved into position with their stop members 38 n engagement. I A further movement of the end section B will cause the levers18 to engage the stops 20and elevate the leaf above the pawls 89, and the leatwill bexin proper positionrela tively to the cleats 16 or 17 to position it, in the plane of;the top of the table; The

. weight'ends lgi ofthesepawls39 operate to hold the pawls in position during the outwardor extended movementof the leaf, but will yield. andjallow the pawls 39 to be a depressed into their slots 41 when the leaf is movedinwardly. By means of this constrnction the maximum widthof the leaves isobtained for a givensize top board 1 of the table.

What'We claim as our invention is: t 1. In an extension table, the combination -ofa main and central section, a pair of fixed members, a p air of, slide members slidably associated with said fixed members, an end tablesection-supported by said slide members; a pair of cleats associated with said slide members, pivoted links 1 connected to after theend section has moved away from 'saidend sectionagiven distance for. actuating aid links to raise the cleats, and an extension leat slidably mounted on'said cleats andadapted-Qto be carried thereby into the plane, of said "mainland central sections.

, 2. :In an .extension table, the combination pfa main and central section, a pair of fixed members, av pa r of} sl de members shdably associated withsaid fixedmembers, an end table --sec tioi 1 supported by said ,slide'memhers, a of cleats assoclated w th said said slide members and; to said cleats,- to

slide members, pivoted links connected to I formwparallel motion connections between the cleats and slide members, pivotedzstop members operable when the endsection has been moved away from the mainsection tor actuating said' links to raise the cleats, an[ I extension leaf slidablywmountedjon said v cleats, and stop members limiting the slid:- 1

ing movementoi said leaf.

sociated with said fixed members, an end table section 'supported'by said slid'e'men 3. In-jan extension table, thecoinbination a of a mam and central sect1on,a palr otfixed z membersfla pair of slide members slidably as bers, apair of cleats associated with said'slide' membersypivotedflinks connected to said slide members and-to saldgclea'ts to form parallel motion connections.between-the cleats and; slide members, pivoted stop members opaway from the main section for actuating said llnksto ra se the cleats, an extension leaf slidablymountedon said'cleats, stop mem-' V bers limiting the-sliding movement of said leaf, and means operable by saidend section whenmoved inwardly, positioning said pivoted stops for the next extension operation of said' end section. 1 H

l. Ina tableofthe class described, the combination o'f a main central sectionlfan ex- "emble'when the elldsction has beenmovedj r ten'sible end section, van extensible 'leafnormally contained-beneath ,the'main section and adapted toebe interposed, between the main and end section in the act; of extending said end section andto be returned to itsnor- .mal positloninthe act ofreturningsaid end section to non-extended position, means "permitting' a relative movement ofthe end section with respect tothe leafaatter. said leaf has been restored to its normal position, and f means operable in the act, ofextending said enti e-section for restraining said leaf until sa1d end section has been moved a givendis,

tance. a c p1 In a tableofthe class" described, the

combination ofa pairof relatively separable table sections, an auxiliary leaf adapted ,tobe

positioned between said sectionsin the a t of i separat ng them, but nonnally-positioned be-= neath saidsections,;means permitting a rela: tive movement between said leaf and said sectionsin either direction of movement of f said sections; andmeans operable duringth'e separatlng movement of said sections for re straining the leaf I after a certain degree} of relative movementbetweenthe leafand said sections-has taken place. i Signed'bv. usiat Chicago, Illinois, thi 4th}; 1

HFPMANN as-air i 1 wWILHELMIlIESA-RMJ Witnesses: a i

M. HA1\IILTON,-

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