US1793391A - Extension table - Google Patents

Description

M. FOX

ExTENs 10N` TABLE Filed June 4, 1928 2 Sheets-Sheet 1 x o, Q o ,Q E w Y me Qlw 1w nu@ 5e QQ uw W 1,.. n n m? 8 1u mm NQ o o uw s P Am @Qn NN a MJ www) EN @e Q1 h. n um.. Imm mw O O A Q bk@ l mm l ,n Qq .QN v s e @I i. mh .l ll l mm Il! f e QN SSN E .n

M. F OX EXTENSION TABLE Feb. 17, 1931.

Filed June 4. 1928 2 Sheets-Sheet 2 R, m. m N Q 0 E Y Q W M -n l m w n w. P A a .mA/w1 n M QQ Nw. u. Bv@ QM x Nimm WM. @N Nu f m. um. nm. v mm. o QM. o. Q\ A @w Q Q .NWJ a IIILIIL o L ,m Q Q b )Y www) 1 l.. A kmmmf Q.. Qdi/0MM km. mx. ll .QQQ W mmmw Q @L I .Il sns n Q. I- w n. JUL Mmhllllwmw x ,Q

c menrnvzrox, |`'or ourense, Immers,

Patented Feb. 177, `19.31'Y

nxrnnsron TABLE invention is an improvement in eXteny sion tables, Vand 'relates-'more'especially-to that particular typejin which the leaves Yforming theeXtensionof-the top are slidablelongitu- "dinallyunder tlieflat'ter tohoused position for which purpose -the"ltophas a vertical iniove` nient-'on thesupportingiframe so that in its l raised lpositionlthereis suflioient clearance for the :sliding finovernent of the leaves therel underandfin 'lowersdlposition, withtheleave's exteiidedfsr'id top 1s interposed between them so es to be eo-planar therewith,ineohanisni being provided: for operatingl the top auto-V matically on manipulation 'ofthe-leaves.

' *Tlienri'mar obiect oflm 1 invention is V'to' l i y J ,l provideV a sini-ple :and -efe'eti've constructionY and arrangement oit' devices operating 1n eo-A operationiwith'the extension leaves for iinparttng positiveand orderly inovement to the 4top when the 'leaves' are slid 1n parallel y1 alignment and lhorizontally from housed to extended :posfitionland vice versa, whereby iny vthe 'present :instance the means for vmaintainV ing tlie'top .raised during the slidingl move-[ Y' 1'.' mentor' theextensronleavestrom extended to housed positionlproindeafirin and substantial tr'aokway over `Iwhich fthe means vsupporting said top will travel. f t

1 A urthejrobgect ofirnylrnvention 1s to `providexnechanioalf-devices for the urpose stated thatarenot only simple and ef Seetivein Construction .but also 4strong 'and` clu rable7 `easily operated,andl are notllia'bleto get outoforder.

Other 'objects and advantages oflnyinvention are obtained lby the ynovel construction and arrangement 'o'i lthe device v'cooperating with .thexnovable partsof'the extension table7 all as hereinafter fully described and more partieularlysetlforthin the appended clai1ns 'n `the accompanying drawings :l Figure Ll lis ka vsectional view-throughfthe upper part o'flan extension table of my inven-v f inext-ended position 4on alfine with tiornsliowing theleaves'housed under 'the top. Figure '2 is a siniiglarview, the leaves being the top the opposite edges thereof. f V3 is a. 'viewsimilar te lwi-th the devices for'operatingthe top removed.

:Figa 4is aview showingithe leaves inou-terinostfextended position ,preliminary to'sliding Vmovable track-plate.

` :For the-.purpose of 'carrying out mylin-` ytothe extension leaves22 and 23, respective- Y ly, eaehjnietal' slide being connected lat its 'outer` end to `thetable leaf by screws, as 24, Y Y and extend 'for `a considerable distance inthern'to housed positionunder the raised top.l o V-Fig. 5 isfa detail side Aelevation ofthe metal slide -earryingfthe devices `for loperatingith'e Y top.-m f

vFigs. Gland 7 are section' f :rige Ais a; daan View of :the Lamapla@ I X-edfto'the metal slidefo'ffoneo-'th'e extension leaves. '1f 1 Figure 9 is a detail viewof the auxiliaryzor rigio isa atan-Siae elevation @freeman 'partsv iconstitutingthe -meohanis'inffor raising sionfleaves, and devices ifor rasingtand-lowering the top on'movelnen't `of the 'extension leaves, itwbeing understood that in `pra'etie'e the arrangement will 'be 'duplicated with respeot to a second rail and that said rails 'are supported on `legs or apedestal aeo'ording 'to the style ToitV table desired.' f Furthermore, 'it will bevapparen't thatthough'l 'have elnbodied 'inlthi's application certain ni'odiaff tions the arrangement 'is susceptible `of other modifications or Changes within the spirit and scopelof the 'appended claims.

, 90j.- vention the horizontal rail Ylois providedat opposite sides thereof withl longitudinal grooves 19 along which `travel the intur'n'ed' lower edges of metal slides'20 and 21- 'att'aehed wardljy' there'fromor to near the oppositeend of' the rail 15 when the fleafisihous'ed, 'and'sola that the extension leaves will move simultaneously there is a gear-wheel or pinionV 25` (Fig. 11) within the rail meshing with rackteeth 26 formed on thev aforementioned intiirned edges of both slides. It will be noted that each metal rail has an upperhorizontal portion or attaching member lbyf'which it is secured to the extension leaf and a depending portion which bears against the rail with the inturneditoothed edge or rac-k 26entering the grooves, respectively, whereby the slides 20 and 21 embrace the rail for direct longitudinal movement of the extension leaves, but in order to guide them in direct parallel and horizontal alignment, and more especially to maintain therack-teeth in mesh with the gearwheel bracket-plates 27. are attached to the rail atopposite sides thereof with their bent upper ends engaging the slides, and inasmuch as the mechanism forvraising and lowering the top is located on one side. ofthe railV forwardV end a slightl depressionl 31 and near.

its inner or. rear end a deeper depression or inclined slot 32 extending' forwardly, the main slot '30 or track formed thereby-being continued *rearwardly beyond the inclined slot 32 for the purpose hereinafter explained. Within the slot 30 on the track formed therebytravels a roller 33carried by a pin 33 projecting inwardly from'the lower .end of a bracket-arm 34'A secured to and depending from the underside ofthe table top to form the main support therefor, itibeing obvious that when the extension leaves are housed, as

y shown in Fig. l, theroller of this supporting arm will rest'in the depressionv 31 atthe forward end. of the trackto position the topY on said leaves, and that when the latter are slid outwardly carrying the track-.plate with slide 20 lsaid roller will first rise-outV of the depression 3l to slightly raise the table top above the extension leaves for clearance and:

then travel on the movable track until it enters `the deeper. depression 1 or inclined slot 32 to allowthe table top to be lowered on to the rails and slides, thedepression 31 and slot 32 being so spaced apart that the eXtension leaves will be separated the required distance to receive thetop between them, and. iii order that themeetingfedges will i'it closely together slot v32 is disposed at the angle shown permitting the roller on the supporting bracket-arm to ride downthe inclined slot forwardly by the weight of the table to'p'- and drawY the leaf to 'which the track-plate -and slide 20 are connected inwardly while a like movement is imparted to the other eX- tension leaf through the intervention of the racks and pinions; that is -to say, the mechanism so fai' described provides for slightly elevating the tabletop for clearance in the movement of the extension leaves horizontally from housed to extended 'positioi'iland Y for lowering said top in between said eXtension leaves whenV extended, the lowering movement of the top and pulling of the leaves against the same being effected in the presentfinstaiice after the leaves are spaced'from the opposite edges of the top and the roller passes -beyond Ythe ,perpendicular withY respect to the seat in the lower end of thejslot.

Nowin order to'maintain the top inraised V position for the closing'lor housing movement. of the 'extension'` leavesl provide for closing the upper end of the slot 32 so that the roller i on the'bracket-arm supporting the top'may travel across thesame as the track-plate 29.

and parts carried thereby are operated by the extension leaf22, .and this is accomplished in kthe present instance by means of a movablemember in thegforin of an auxiliary:` track-plate 35 lslidably'mounted at one side,j

preferably the outer side, of the track-plate 29 yand cutaway at its upper end to provide a section of track36 on a plane with .the-track, at the lowerredge ofthe horizontal slot 30,

with abutments 37 and -38 atopposite ends of said track 36 against which the roller 33a will strike at the ends of its travel over ythe companion tracks in bot-h directions to shifty the auxiliary*track-,plate which is also provided with depression 39 and slot 40 correspondingfwith the depression 3l and slot 32 and adapted to register therewith in the op-1 eration of extending the leaves as hereinbefore explained, the said auxiliary track-plate being slidably attached to the mainitrack- Vplate by meansl of bolts 41V passing through,Y lslots 42 therein and through holes 43,in

the companion track-plate, with expansion springs 43 interposed betweenthe nuts 45 and inner side oftrack-plate 29 (see Fig. l2) so as to hold the movable ktrack-plate under tensionin the positions to which it is shifted by the roller striking against the abutnients 37 and 38 in the operation of the extensionV leavesof the table. Instead of yieldingly binding the-track-plates together by compression springs l may employ spring plates 46 interposed between the bolt heads and outfer track-plate (see Fig. 12a), said spring plates being bowed so that vtheir ends will press against the movable track-plate. It

will be obvious that when the leaves are .inV

extended position, with the-top in between and co-planar therewith asv iiiFig. 2, the roller of the supporting arm will be at the lower end of the companion slots 32 and 40 ltr ondby egtentling the legves to their oiitee most-position (Fig el) Yprelirpiiifir-y to; dosing or housing the soinethe roller Willtrovel up soidipelined slots and onto thetreolr. por:

. tion-oi plete 29 beyond s.l it`32,L et the saine time moving .tegole-plete by Contact with. ohiitinent 37 .to-olose slot 32, es Well' slot 4Q, 'thereby presenting o., iirni @Continuous troolitvoyfor supporting .the teble top during the .slidingipovernent o f the .leaves .from eirtendedtov housed positions, ond es slot Si? is Closed ivhenithe enriiliery .troph-plete is .sluis o eil this opergtiontlie roller will continue to trovel over the .moving treelror troolrs,

inolpding fthe treelr portion oi' :plete 2 9 odjoining .soidslot 39, until it strikes i; lieobut-Y nient-i8V ondshiftsthe plete to .bring .the slots sondl n'oligninent to reeeive the rollerior .lowering the table top onto the housed leaves., seid top liovingbeen its nppeiinost position Yfor oleoronoe 4dering the sliding movement oi' the leiives- .For tliepnrpose of guiding the. lower enti ofthe plete 12.9 in its travelling movement with theteble-.leei slide strip eo is 'ottoohed horizontally to Athe roll for guiding the top Wheil. reised ond .lowered on slideble movement of theertensioii leevelsl prefer obly employ the orriiiigenient .shown inthe droivinge ooniprising e peirof toggie'linlrs i? 4 7 pivoted togethe.r eentrollyot e8 and et their ends pivoteol to ongle plotes 49' 50 etteehed to 7the underside of the table top and lower edgeoi the supporting-slide., the piv otel-ooiineotion of oneend Vof, eeoh link toi its angle plate being by means of slots 5l to per- Init movement oi seid links. efter .the Vmanner e QfloZytongs- .1F nrtherniore, in order to .es-

sist in lifting the top when the operating meohonisni is used in Connection with alero-.ef

tohle or heevy top helioel es pensioo springs 5.2 ore Compressed between seid vtop end the supporting reil being seoted in holes .5 3 in the .letter bored 4the desired depth fromlthe vtop thereof.

Yllhe.ineeting .edges lido of the top epd 22o end .23o of the-extension leoves ere prefer.-

ably Curved orlinshed as shown inthe drawings7 eind es the registering slots 32 ond. e0Y

ere "inelined forrverdlyseid meeting edges will `come, together 1it .Closely Wlienfthe top lowered in betvveen Vthe leaves, but of colarse Said slots vbeing geen angle Wit-llibre troolrs serve the odditionolporpose of providing inclined surfaces for V'che travel of the roller in hfersing and' lowering movement of ,thetop f From the foregoing description in connection withthe ooeoin'ptinying drawings it will be epperent thot'iny invention not only provides 'a simple incl effective arrangement in the form of a' plateotteolieelrto one of the slidesongl having a track with o depression and slot therein to cooperate with lthe spp port for the top in .raising ond lowering the letter .during the sliding movement. of 'the extension; leeves .roiriihopsed to extended po ls ,it.io.n., b ut by tliesiinplel edditiorito 'seid plete of .ti-movable. plotehoving o yCorrespondirig troolr vvith o depression ondslot .adopted to register with the' troph, depression ondfslot in vthe main plate and movable out of align.- nieiit .therewith I.V provide .simple niefinsopgurl evening in positive meneer for maintaining che table top in rgieed position during the move-inept of the extension .leoves in housinii` the saine and for pnllingthe. extended leaves. ogeinstthe opposite edges ofthe lowered top to notonly provide o olose joint but also per mit the edgesv ofthe top to be beveled or ished` shown in the .drawingst la loon eertension teble Y.hei/ingeivertiooilyYy niovoble top vend. leoves with slides tor ,horrrf oiitel nioveine'nt of seid. .leoves one roil'oi thesppporting freine, ineens .forgnldingthe top .in its vertioel movements, e 'supporting erin dependingirorn .the top ondbeving. en. offset portion et its lover end,v fai-plete ottitohed to one ofthe leoi'snpporting-slides end hev` ing e horifzxontal preek over Whig-h the jepp- Vporting erniof the top rides Whenthe slide is moved forivgirclly with the feeble leef, and.

o o inolined slot Yeste,ridingdow nivordly ond forwardly. nndergtiie l track '-to [reverse `the .movement of the leaf and pull Ait @gelingt the top es the letter is vlowers' dgby the supporting erm enteringseid inolined slot 2 infin estepsiontoblehoving e vertically movable Lopend leaves with slides for hori- `Zontel movement oi .seid leaves on o .roil oi the supportingfronie, ineens for guiding the' top inY its vertioel movements, o. 'supporting depending irornlthe -top endheving .en olset portion et its lower end',` a plattey attached to oneoithe leeifsiippoitirig slides ond lieve ingehorizontel .treok over porting erni ofthe top rides'ivhen .the slide isv nioved forwardly With the .toble leef, tides. pression .et one eiidof thetrool'r., ond yon in:

one of the leaf supportings'lides and having a horizonteltrook over which the supporting arm Noizlletop rides when the slide is moved forwardly with the tgble leef, e depression gione end of the treele'ndan Linclined slot et the other' endoi the treolr extending downwardly end. foryverllyfuncler. the track reverse thev movement; of the leef and pull ii;

which the *sup-"v ofthe letti loo l' v portion ai; tjslowerend, a plete gitteohed to against the top as-the latter is lowered by the supporting arm entering said inclined slot; together with means for guiding the' top in its vertical movements, and expansion springs interposed between the top and rail zontal movement of said leaves on a rail of the supporting frame, means for guiding the top in its vertical movements, a supporting arm dependingffrom the top and having an offset portion at its lower end, a plate attached to one of the leafsupporting slides and having a horizontal track over which the supporting arm of the top rides 'when the slide is moved forwardly with the table leaf, and an inclined slot extending downwardly and forwardly-under the track to reverse the movement'of the leaf and pull it against the top as the latter is lowered by the supporting arm entering said inclined slot together with av member movable on tliew plate to close the upper end of the inclined slot and form a continuation of the track on a plane with the tread portion'thereof, and means cooperating with the top supporting arm and responsive to the movement of the leaf supporting slide for moving said slot closing member with respect to the'sl'ot.

5. ln an extension table having a vertically' movable top and leaves with slides for horizontal movement ofsaidleaves on a rail of the supporting frame, means for guiding the top in its vertical movements, a supporting arm depending from vthetop and having an offset portion at its lower end, a plate attached to one of the leaf supporting slides and having a horizontal track over which'the supporting arm of the top rides when the slide is. moved forwardly with the table leaf, and an l inclined slot extending downwardly and forwardly under the track to reverse the movement ,of the leaf and pull it against the top as the latter-is lowered by the supporting arm entering said inclined slot; together with a member movable on the plate at one side thereofl and on a line with the track to form a contiguous extension thereof at the upper end of the inclined slot when in alignment with said slot, and means cooperating with the top supporting arm and responsive to the4 movement of the leaf supporting slide for moving l said slot closing member with respect to the slot.

6. In an extension table having a vertically movable top and leaves with slides for hori- A zontal movement of said leaves `on a rail of the supporting frame, means vfor guiding the.

top in its vertical movements, av supporting arm depending from the top and having an offset portion at its lower end, a plate attached to one of the leaf supporting slides and having a horizontal track over which the supporting' arm of the top rideswhen the slide is moved forwardwith the table leaf, 'and anf thereof and on a line with the track to form a contiguous extension thereof at the upper end of the inclined slot when in alignment with said slot, means cooperating with the top sup-z porting arm and responsive to the movement: of the leaf supporting slide foi-moving saiolv slot closing member with respectto the Slot, and means for yieldabiy h'oldingjsaid meinber in either vposition to which'it is shifted. l

7. In an extension table having a support for the top, avertically movable top and means for guiding the same, and extension leaves slidable horizontally onthe support, of a plate carried by one of the leaves and having a horizontal track withan inclined slot extending downwardly'v and forwardly therefro-in, an auxiliary plate slidable at one side of the aforesaid plate and having a track portion and slot corresponding with the track and slot of the-first mentioned plate and adapted to register therewith, anarm depending from the table top to rest on the tracks and enter the slotswlien they are in line with each other, and means operated' by' the arm to move the auxiliary plate for closing the slots and form continuations of the horizontal tracks at the upper-'ends of said f slots.

8. In'an extension table having a support-l by one of the leaves and cut away to provide a horizontal track and an inclined slot eX- teiiding downwardly and forwardly from said track, a plate slidable at one side of the aforesaid plate and having a slot corresponding with the slot therein and adapted to register therewith, and a. projection on the last mentioned plate extending above the track of the companion plate', together with an arm depending from the table top to' rest on the track and travel thereover, said arm engaging the projection to move the slidable plate.

9. In an extension table having a supporting rail, a top and `means for guiding the same vertically, and extension leaves with slides cooperating with the rail for horizontal movement ofsaid leaves, of a plate carried by'one of the leaves and cutaway to provide a. horizontal track and an inclined slot eX- tending downwardly and forwardly from lll) said track,`a plate slidable at one side of .thel Y aforesaid plate and having a slot corresponding with the slot therein and adapted to register therewith, and spaced apart projections messe-f1 Y on--the last mentioned platefextendingfabove the track of the Companion plate; togetlier with an arm depending from the tabletop to rest onrthe track andenter fthe slots when theyare in line with eachother` andA adapted to strike the projections on the slidabl'e plate to-m'ove'the same from one position toan#Y other with respect to registration of the slots; l..` In an extension table having a supporte ing rail,al top and means for guiding the 'saine vertically, and extension leaves with slides cooperating withf the rail for horizontal movement of said leaves, of a plate carried by"V one of the leaves and cut away to-provid'e ai horizontal track and an inclined slot "extending downwardly and forwardly from said-track, ahplateslidable'at one side of the aforesaid plate and having a slotcorresponding with the slot therein and adaptedto register therewith, means for pressing the plates Vyieldinglj'f together forh'oldingpt'he slidable plate in either shifted position, and spacedk apart projections on the slidable plate ezt'` slides cooperating with the rail for horizon? tal movement of said leaves, of a plate carried by oneY of the leaves and cut away to provide a horizontaltrack with a depression at one end thereof andanl inclined slot-near the otherend, a plate slidable at one 'side of the aforesaid plate and having a depression andV slot corresponding with the depression and slot therein and adapted to register therewith, springs for pressing'the plates together to hold themin shifted positions, and projections at'theends of the Yslidable. plate eX- tending above the track of the companion plate; together withan arm depending from the tabletop and supported by the plates.

1 l2. In an extension table having a supporting rail, a vertically movable top, and means for guiding the same, and extension leaves with slides cooperating with the rail for horizontal movement of said leaves,V ofv a plate carried by onev of the leaves and having ahorizontal track with a depression at one 'end and an inclined slot near the other end, an auxiliary plate slidable at one side of the aforesaid plate and having a depression and slot corresponding with the depression and lslot insaid companion plate and adapted to register therewith, bolts extending through slots in the auxiliary plate and through holes in the companion plate, and springs interposedbetween the bolts and the adjoining plate; together with projections on the auX- of the opening and iliaryplate extending above the track tiene companion plate, andyan arm' depending from'the table top and resting-on the tracks for 'shifting the auxiliaryplate at the ends extension leaves. .i '1

w13. Inan extesiontable having averti! cally` movable top and horizontally slidable leaves'rnountedonta supportingqframe for ingand lowering the top on movement'ofthe leavesl comprising af metal slidefo'r attac-h4 Uine'nt'to the-leaves, a plate 'carried bythe slide and `having ahorizontaltra'ck vwithan` in# VVVclined slot at one" end, an auxiliary `plate slidabl'e: at oneside ofthe irstinentioned plate and havingntrack portion and an inf clined slot adapted toregis'ter with the cor: responding track 'portion4 and slot of said companion platevr with abutments at thef'ends of the auxiliary platepro'jecting above the' track ofthe Acoi'npaniion plate. v

14. In an extension table having-a vertilcallyinov'able top 'and'horizontally slidable V-leavesi'nount-ed on a supporting fra-me lfor housing the leaves-under the top, of metal parts constituting vthe mechanism for -raising and lowering the top lon movement of the leavesl comprising a-metal slide for 'attachment' to the leaves, a Aplate' carried `by the slide and having a horizontal track with a depression at one end and an inclined slotl near the other end, an auxiliary plate at one side of the .aforesaid plate andl havingit'r'ack portion, .depression and slot adapted to reg; ister with the correspondingtrackfportion, depression and slot 'of said Vcompanion'-plate with VVabutinents at the ends of the auxiliary plate projecting above the track of ,the4 con1-` panion plate, boltsconnecting the plates and passing through slots'in the auxiliary plate, and means exerting a tension between the plates. A Y vr- Y j Vl5. MetalV devices for use in connection with the movable parts of an extension table comprisinga mainplate" attachable toa mov,- able leaf and having a horizontal track with 4a depression at one endand a downwardly and forwardly inclined slot atthe other end, and

ran auxiliary plate slidable at one side yof the Ina-inY plate and having Ya track, depression and slot correspondingy with those ofthe main plate and adapted to be brought into v alignment therewith andv when out of align ment said auxiliary plate providing an eX- tension'of the'main tracka'cross the slot and depression in the main` plate."

able leaf and having a horizontal track with to enter! thedepressions andislo'tsfwhen in "alignmentfwithjeach other, said 'armi being adapted tof strikeV` the aforesaidprojection's closing movements ofthe )housing the leaves under the top, of; metia-l 'parts' constituting Athe'uin'ech'anisrn' for rais- Y ieu - of the main plate andhaving a track, de,-

pression rand slot corresponding Awith, those ofthe main plate and adapted to be brought into alignmenttherewith andfwhen out of alignment said auxillary plate providing an extension of the main track across the slot and depression inzthe ymainplate; together with means engageable by apart of the table Afor sliding one plate'on the other in opposite directions. f

the movable parts of ani extension table comlprising a main plate attachable to a movable leafl and having a'horizontal track with a depression at one end and a downwardly land forwardlylin'clined slot at the other end, andV an auxiliary plate slidablefat one sidel of the main plateand having atrack, depression and slotfcorresponding :with those of the main plate and adapted to' be broughtlinto alignment therewith and whenout of alignment-said auxiliary plate; providing an extension of the main t1.ackac1osstheslotand depression in the main plate; together with means for holding the plates in'yieldable and slidable engagement one with the other, and means'responsive to the movement of a` part of the table for sliding one; plate on the other in opposite directions; v

18. Metal devices for use vin connection with the movable parts of an extension table comprising a main plate attachable 'to a -movable leaf and having a horizontal track with a depression at one end and a downwardlyand forwardly inclined slot atzthe other end,'an auxiliary plate slidable atfone side ofthe main plate and having a track, depression and slot corresponding lwith thosc of the main plate and adapted toV bc brought into alignment therewith and whenfout of-align.- ment said auxiliary plate providing an cxtension of the main track across the slot and depression in the main plate, and abutments on the slidable plate engageable by a part of the table for sliding said plate'back and4 forth on the main plate. 1

19. Metal devices for ,use in connectionV with the movable parts of an extension table comprisinga main plate attachable to a movable leaf and having ya 4horizontal track with a depression at one end and a downwardly. and

forwardly inclined slot at the other end, `an auxiliary plate slidable at one side 'of the main plate and having a track, depression and slot corresponding with-thoseA of the main plate and adapted to be brought into alignment therewith and when out of-alignment said auxiliary plate providing an ex-y tension of the main track across the slot and depression in the main plate, means for holding the platesl in yieldable engagement one with theotherkand abutments on the slidfor vrsliding said plate back and forth on the main plate. l Y' e 20. Metal devices for vuse in connection with the movable parts of an extension table comprisng a main ,plate attachable to a movable leaf and 'having a horizontal track with a depression at one end and a downwardly and forwardly inclined slot at the other end, an auxiliary plate slidable .at one side of the main plate and having a track, depression and slot-*corresponding with those of the c i Y Y c main plate and adapted to be brought into t17. Metal devices for use inconnection with slidable plate engageable by a part of the" table for sliding said plate back and forth on the main plate.

, 21. In an extension table having vertically movable and horizontally slidable parts forming the top, said parts being disposed one above the other `in housed position, of means l for imparting a forward or outward and slight rearward movement to the slidable parts onoperation ofthe latter in extending the table comprising a horizontal track and an inclined extension thereof underv said horizontal track whereby to pull the slidable partsagainst the companion part of the top to :provide a tight joint.

' l l 22. In an extension table having vertically movable and horizontally slidable parts forming the top, said parts being disposed one above the other in housed position, of means for impar-ting a forward oroutward 'and slight rearward movement to the slidable parts on operation of the latter in extending the table comprising a horizontal track and an inclined extension thereof under said horizontal track whereby to pull the slidable parts against the companion part of the top to provide a tight joint, and means responsive to the extensive movement of the slid'- able parts beyond the inclined track to support the vertically movable part 'fin raised position during the housingoperation.

23. Metal devices for use in connection with vertically movable land vhorizontally r slidable parts of an extension table comprising a metal plate for attachment to the horizontally movable part of the table'and having a horizontal main track and an inclined slot at one end thereof extending downwardly and forwardly under the track, said track and inclined slot supporting the vertically movable part of the table and guiding the hori" zontally movable part with respect to said vertically movable part, and a member movable on the plate in and out of alignment with v the upper endrof the inclined slotto forma contiguous track section closingk said slot.

'24. Metal devices foi use in connection with vertically movable and horizontally j slidable parts of an extensiontable compris- K ing a metal plate for attachment to the hori- Y and forwardly under the track, said track and zontally movable part of the table and having a horizontal main track and an inclined slot at one end thereof Vextending downwardly inclined slot supporting'the vertically movable part of the tableY and guiding the horizontally movable part with respect to said vertically movablev part, and an auxiliary n f plate slidable at onel side of the aforesaid plate and adapted to form a track section at and Vforwardly under the track, said track and inclined slot supporting the vertically movable part of the table and guiding thev horizontally movable part with respect to said vertically movable part, an auxiliary v plate slidable atY one side of the aforesaid plate and adapted to form a track section at one side of the upper end of the inclined slot,and means for connecting said plates together for frictional engagement.

26. Metal devices for use in connection with vertically Vmovable and horizontally slidable parts 'of an extension table comprising a metal plate Vfor attachment to the horizontally movable part ofthe table and having a horizontal main track and an inclined slot at one end thereof extending downwardly and forwardly under the track, said track and inclined slot supporting the vertically movable part of the vtable and guiding the horizontally movable part with respect to said vertically movable part, in auxiliary plate slidably connected to the aforesaid plate at tension table.

nected to and slidable at one side of the aforesaid plate and having'ak corresponding track and inclined-slot, the track on'both platesy b eing 'extended beyond the` inclined slot, and

abutments on the auxiliary plate to provide' for the operation' thereof by a part of the ex- MARTIN Fox.

one side thereofand adapted to be moved in and out of alignment with the upper end of the slot to provide a contiguous track bridging said slot, and abutments extending up- Yw'ardly from the auxiliary plate.

27. Metal devices for use in connection with l vertically movable and horizontally slidable parts of an extension table comprising a metal plate for attachment to the horizontally movable part-'of the table and having a horizontal main track and an inclined slot at one end thereof extending downwardly and forwardly under the track, said track and inclined slot supporting the vertically movable part of the table and guiding the horizontally movable part with respect to saidvertically movable part, an auxiliary plate con-

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