US 2596986 A
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Description (OCR text may contain errors)
May 20, 1952 c. c. cuRTls ADJUSTABLE MEANS FOR HOSPITAL TABLES s sheers-sheet 1 Filed June 8, 1948 o EN . glu/umm CEcn. CLAUD Curms C. C. CURTIS ADJUSTABLE MEANS FOR HOSPITAL TABLES May 20, 1952` 5 Sheets-Shee'u 2 Filed June 8, 1948 wucmfo/v CeclLCLAuo CURTIS C. C. CURTIS ADJUSTABLE MEANS FOR HOSPITAL TABLES May 2o, 1952 5 Sheets-Sheei; 3
Filed June 8, 1948 NNI mv @v 3 Q Om mm imm IWL bwa/WLM CEC". CLAuDCum-ls ail-,mucus May 20, 1952 c. c. CURTIS 2,596,986
ADJUSTABLE MEANS FOR HOSPITAL TABLES Filed June 8, 1948 5 Sheets-Sheet 4 F. l E l xmzcwl'or/ IG. CEclL CLAuD CURTIS May 270, 1952 c. c. CURTIS 2,596,986
ADJUSTABLE MEANS FOR HOSPITAL TABLES Y Filed June 8, 1948 5 Sheets-Sheet 5 Y CEcrLCLAuD CUR-ns w3 )Mmmm Patented May 20, 1952 UNITED STATES yPATENT OFFICE ADJUSTABLE MEANS FOR HOSPITAL TABLES Cecil Claud Curtis, Washington, D. C.
Application June 8, 1948, Serial No. 31,679
This invention relates to improvements in hospital tables intended for physicians or surgical use in examinations or operations, and whereby ailing patients may be supported in a multitude of positions called for in such examinations or operations.
The object of the invention, thus generally stated, is to provide a table of the character mentioned adapted to wide uses, in the hospital, office, or home, provided with improved means forenabling easily manipulated and safe and firm adjustments of head and foot sections of the table to various points of elevation and depression both above and below the normal horizontal plane of the table comprising said head and foot sections and an intermediate central or seat section.
Within the same or broad leld of service, to which the invention is applicable, is included hair, face or other treatments or massages or the like, usually encountered in so-called beauty parlors.
The preferred embodiment of the invention comprises a table having a bed or top of the adjustable sectional character recited combined with a main support comprising fixed pairs of oppositely disposed standards or supports pivoted at their upper ends to the seat or intermediate section of the bed or top, and in operation to occupy inclined or downwardly diverging relationship and adjustable braces adapted to extend from these standards or supports to the head and foot sections of the table top where they are pivoted to their respective sections at desirable points intermediate the ends of said sections, the lower ends of the braces having relatively free adjustable connections through a long range of adjustment lengthwise of the supports to correspondingly effect substantial changes of positions of the head and foot sections of the top above and below the normal common horizontal plane of the top both above and below the latter, as suggested.
AV further object of the invention, and constituting lan additional characteristic of theY preferred embodiment thereof, resides in a foldable spreading and holding means for the downwardly diverging supports or standards adapted to fold in. an upward direction to occupy positions generally parallel to the standards or supports When the latter are swung inwardly to occupy approximately parallel relations to the same, and parallel relations to the head and foot sections of the table, when the table is not in use and being shifted from place-to-place, or stored; and the same operatively associated with rollers or castersk provided at the lower or floor-engaging ends of the supports or standards in such way that the wheelsor casters may be bodily adjusted, contemporaneously with the movements of the parts into the compact or folded relationship described, to maintain the rollers or casters in preferred operative position to bear anti-frictionally on the surface over which the folded table may be shifted without undue friction or angular positioning of the roller or caster structure that might tend to binding or objectionable screeching or noise. Y
Novel ancillary features of advantage attending details of construction will be apparent from the more specific description hereinafter contained when read in connection with the drawings forming part hereof and wherein the preferred, together with another embodiment of the invention are illustrated, both embodiments having improved roller adjustments and means for locking the supports or standards in their folded positions or rolling from place-to-place for lodgment out of the way when not in service.
Referring to the drawings:
Figure -1 is a side elevation of the preferred embodiment of the invention, the same being in open position with the top or bed portion all in a horizontal plane, that is, with the central or intermediate seat, and the so-called head and foot sections in the same horizontal plane, with the latter ready to be adjusted upwardly or downwardly to any relative positions found expedient or demanded by the special undergoing treatment of an ailing patient.
Figure 2 is a longitudinal vertical sectional view through Figure 1.
Figure 3 is a side elevation, the same as Figure 1, with the head and foot sections in one of their many adjusted positions, in this instance showing the head section of the top or bed of the table in a raised position and the foot section in a lowered position, the adjustment of these sections being through the range of movement marking a reverse of that shown, that is, with the foot section raised and the head section lowered from the plane of the seat portion and and locked position for moving from place-toplace on the rollers or casters.
Figure 6 is an end View of the same.
Figure 7 is a transverse sectional view through the center of Figure 1.
Figure 8 is a plan View of the locking means for maintaining the supports or standards in spread position; and
Figure- 9 is a vertical section therethrough.
Figure 10 is a face view of approximately half the second embodiment of the invention here made and constructed of metal, as distinguished from the preceding series of views where wood may well be employed in the make-up of the supporting framework.
Figure 11 is a horizontal sectional view on approximately the line II-II of'Figurev 10; and
Figure 12 is a longitudinal sectional View on the line I2--I2 of Figure 10 through the locking means, the position of which is illustrated in Figure 10.
Figures'l; lllandY l5; are detailplan views, partly` in section, of still another embodiment of the invention; and
Figures 16, 1.7, 18 andk 19 are similar` detail'` views illustrative of; means for supporting the table irrespective of caster or wheel supports therefor.
Referring more specically: tol the drawings wherein like reference characters refer to the same partsin the respective series of views; rst` with reference to Figures 1 to 9 inclusive; I3 represents the foot section, I4 the intermediate or.` seat section and I5; the head sectionof thev table top or bed of the structure, .these sections being. hinged on. transverse lines by hinges IE, movablyvuniting the sections in their upper surfaces whereby. the foot and'headsections may have. substantial swinging movement'or adjustment i' upwardly either above', the` plane of" the intermediate or; seat section It; ordownwardly therelceldw,y as permitted-'by thebeveled or cutaway edges I1:(Figur.e 2). The table `preferably has a sponge rubber'or equivalent;4 covering I8 over-the hinged area ofthe4 topwhich willfpermit the adjustment referredytozowingto-zthe 'elasticity of; said: sponge rubber, and the remainder of the top mayhave anygsuitable ,padding I9, the whole beingI covered4 bya `sheeting 20,- capable ofbeing stretched slightly orsumciently not to interfere with; the; adjustment movement ofY thesections I3 and: i5:v downwardly relative to a normal horizontal plane.
On the under surface of the intermediate. or. seatsection I4 is formed. or secured, a block 2I for the attachment of standards or supports 22,l pivotedat 23 to the block (it is to vbe understood thatin describing the structure at one face or vside of. the table, the construction of theother side orL face of.` the table is thesame and the description will apply in that respect Vto the two series of uprights or supports- 22, 22 without further `mention thereof) The-lower ends of the standards or supports 221 carry-antifriction rollers or casters 25; to`be. later referred to. The intermediate portions 26 ofthe standards or-V supports 22a-have their inner faces grooved to constitute` elongated ways 2T to receive projectingend portions 28 ofy rodsZQ carried by opposite pairs-of links 30, pivoted at 3 I ,to blocks -32Y respectively fastened tothe undert surfaceof the head and foot portions I3 and I5. of. the table top to support these sections of, the top in whatever independent and .relative positionstowhich they may bie, adjusted; The links 30"are intertted in sections as at 33 "(Fig- CTI ure 7) "and adjustable through the medium of registering apertures and pins 34 to enable lengthening or shortening or the links as may be desired.
It will be understood that the projected ends 28, of the rcds 2Q, may ride upwardly in the grooves or ways 2"! when the top sections are raised, and over the inclined surfaces 35 of a long. series. of shoulders. or seats4 36v formed on the bottom walls 3l' of the ways 21 g as will be apparent, springs 3S around the pivots 3l engaging at one end on the bottom surface of the top section and at its other end 3Q exerting a corresponding pressure on the outer edge of `the link, indicated at fill, maintaining the ends ZS'in engagement with a seat at all times when the section of the table is adjusted to set position.
A pull ring or handle di carried by a cable G2 is connected to the outer edge oi each link 30, as at 43. These cables l2 may be of any type found expedient, but has in a portion ofsurfaces adjoining the seats 35, the action of thev spring 38"' alone effecting the interengagement-of:
the extension-s` 28 with the appropriate seats- 36- to :firmly support the section of the top that carries the saidlinks. However', in efecting the downwardadjustment of said section it is necessary to manipulate the ring orY pull cordV 4I- of' the cable 42 to overcome the seating action ofthe link' and `to raise the extensions 28` away from theseats 35to -be free to pass downwardly in the waysZ] `rwithout obstruction from the saidseats.
4'5 The then lowering of the sectionon` its-hinge t0A the extentdesired Ybelow the horizontalrplane of the table top may be accomplished tothe extent Y necessary'when the release of the manual pull on the' cablefwill permit the spring 3E'to force the link in aswinging direction', inwardly 'of the table,l causing the` ends 28 to intert' withI the appropriate seats Vand maintain the parts in this adjusted position.
To'maintain the table in any operative position, 'the' supporting ystandards 22 are spread` apart in the downwardly diverging relationship (Figure 2)v to their maximum extent, and held inr xed position by spreader arms 45 and d, pivotedat their outer ends 4l to the thereto adjacent lowerv end portions of the standards or s-upports 22,' the inner ends of the spreader arms being pivotally united by a pin 4B so that the arms'y may fold upwardly between and approximately parallel with the standards when the latter are swung together on their pivots 23in such relation asshown in Figure 5. Y'
To help support the sectional tabletop, especially when under loadthat is` when occupied by yapatient---and to a substantial extent relieve the strain on the pivots 23, the upper ends of the' standards 22 are enlarged and beveled'as at 49; to' present substantialbearing surfaces for the seat or intermediate section Illof4 the top (Figures land 2) andy at the'opposite sides of the upper endsof -the standards there are providedl hook portions 50, engaging the bottomsof slotted portions l in the walls of abutmentmembers 52, on the outer facesV of the blocks 2|. This hook engagement,y just described, further strengthens the connections between the standards or supports 49 and the top to relieve the pivots 23, as stated. When the spreader members and 46 are in aligned position, with the standards or supports 22 spread apart, and at their upper ends engaged as described, it is desirable thatvsaid spreader members be` Vlocked in position against upward folding tendency. To this end the member 45 has a slotted end portion 53, adapted to receive and cooperate with a latch 54 carried by a supporting member 55and projecting freely through a slotted portion 56 in the spreader member 46, andadapted to be shifted longitudinally of the spreader members'45 and 46 to engage thelatch at its free end in the slotted end 53 of the spreader member 55 to thus interlock and hold the -members against movement. To prevent thev latch from free movement a spring 51 frictionally engages the side of the member 46 and retains the same in either holding or releasing engagement therewith, correspondingly retaining the spreaders 45 and 46 in elongated or continuous formation, or freeing the same whereby to break or pivot in an upward direction. Y
When the spreader members 45 and 46 are released from their interlocked engagement, and the table is folded, as shown in Figure 5, the upward swinging of the spreader members 45 and 46 and corresponding drawing of the standards or supports 22 towards each other to the approximate parallel relationship depicted in said Figure 5, the casters or roller members 25, previously referred to, are keptA in the upright position indicated in Figures l and 2 to insure freedom of folding movement of the stand without unduly tilting or possibly binding or screeching of the casters or roller-carrying member, this being accomplished by a rock arm 58, fixed to the pin 48, said arm '56 being connected by a link 59, to companion arm 60 on the caster or roller-carrying member 6 l. This link 59 is pivotally connected to the arms 58 and 60 and it will be seen that from this construction (note the changing positions illustrated in Figure 4) the caster or rollercarrying member is maintained in the same upright position throughout the folding movement of the spreader member 45, in this instance, during the folding movement of the arm 45 and upright or support 22, and this will be true in alignment -with the standard or arm-prevents the caster or roller structure from projecting.
t ends of the table are substantially the same.
the instances of the other uprights, members 45 and the light roller constructions operatively associated therewith, so that when the device is entirely folded and the parts nested, so to speak, as illustrated in Figure 5, for example, the folded table may be readily shifted from place-to-place on the anti-friction rollers in truly operative relationship to the other parts of the structure and without tilting beyond the vertical plane which they occupy when operative, which might tend to interfere with freedom of movement or create friction and the Areferred to screeching or noise of the parts of the caster or roller constructions during the movement of the table.
The'changing of the position of the caster or roller structure by the raising of the spreader arms 45 and 46 and folding towards the standards or supports 22 whereby the roller or wheel structure gradually assume a position relative to the standard or arm that carries the same resulting in a final positioning of the caster or roller structure in approximately true vertical In Figures l0 to l2 inclusive, '62 represents the central or seatsection of the top or bed or table, 63 the foot section land 64 thev head section, `although it is to be understood that either Connected to the seat section 62, by suitable pivot connections 65, are the standards or supports 66, of tubular steel or other metal Vasfsuggested, the same being adaptedY to foldzinto parallel relationship, as shown by the dotted lines,when not in use, or to bespread apart .in downwardly diverging relationship when4 the table is in use, as indicated in the full lines. The standards or supports 66 are open along one side to `provide a slotted portion or way 61 having inclined edge wall portions 68 leading to adjoining stops 69, the 'latter'to be engaged in any position of inclination of the top section 64 within the limits provided for the purpose, and the engagement of the stop 69 in the predetermined position of the top section 64 is accomplished through a link or brace 10, pivoted at 1l to the top section and having a telescoping extension 12 adjustable by the binding screw 13, and a lateral extension or foot piece 14, extended into the' way 61, to rest upon any of the seat portions 69 determined by the positioning of the top section 64. VThe brace or link 10-is normally in engagement with its foot piece engaging the stop under the pressure of the spring 15 at the piv-v oted endv of the link or brace 10 and exerting a constant downward and inward pressure on the link. To enable adjustment of thelink or brace upwardly along the standard or support 66 the same is, of course, normally adaptedto move with an upward or lifting movement on the section 64 by the hand of 'the.user. However, to obtain the oppositemovement or adjustment of the link downwardly in the way 61, a grip or handle 16, at the outer end of the cable l11, connected at 18 tov the link may be pulled, the same asin the instance of the corresponding cable 42 in the embodiment of the invention illustrated in Figure 2, to raise the foot piece 14 out of engagement with. the seat 69 at that time being engaged, so that the maintaining of the brace or; link free to move along the way 61 well against the pressure of the spring 15 is effected, and simultaneously permittingv the table sections 64-o-r corresponding sections 63-to lower to the point desired and at the inclination desired with reference'to the normal horizontal plane of the table top or bed, when the cable or pull member 16 may be releasedand the link". or: brace` 1 0 again; engaged." with. the. 211.920. Prints; seat 6,9; to .maintain thetable section 64": in: the opcrativezposition intended..
When the embodimentfon theinventionjust. describediisnotfiniuse. or open.- asshown inFisuie. 10; thegsame isr dosig-nedgto befolded,,gener-v ally: after.: the: manner illustrated; in,y Figurel 5, showingzthe.; nist-mentioned embodiment, of, the invention. For.; this purpose there` is, a, pipe connection-.19.,- bridging thev s,tandards; or 11p-- rights: 616;. and niv-oted to swing; upwardlyor downwardlywith Athe ,connections 1 9,. (one ateach endzof: the machine). arespreader arms. fpiv-, oted `ai,utri e.i1..inner ends 8|-, arour.idea;v cross Pipe. 82,; carrying` sleeves. 8.3,: rigidly fastened. to the ends, of the cross, rods,- adapted. to.; slide. urn-.and down, verticalv columns. 8.1Lv rigidly fastened in nlaceon-- the transverse; central; portion; of the.: tabletononbedz; The;slidingoi;thewsnreader, arms v81udowi-.iwardly1 tozthegaliguedor horizontalpositionrshowninFigureldwill; oncourso; eieot the, opening-gef; thetable1to operative; form; and; correspondinglysliding;` the.;r meeting or: inner ends of the; arms. 80.; upwardly.- onthecolumns; Mawll.-` cause the. armste fold, upwardly as in.- dcated by;` dotted linesin. Figure. 1.0.-wil1. corre.- soondingly;Y force.; the; standards or supports into:,.vertical parallel.. relationship, as; also indicated ;by the. dottedrlines..
Withinthe columnstnarespring.pressedstons am; adapted to normally. spring: outwardly from' the-.columnsto occupy positions-abovethe sleeves d3.; whenthe latter are lowered; and the. spreader arms; 8.0i arein horizontaler aligned positionto retanztlie standards. orysupports; 66.. intheirroutward or, operatingft-position; With sufiicientpres.- sure the .spring e. pressed.. stops 84o may.` recede to permit thesleeves: 8.3.?to.:pass;theremzer.` when the Spreader armsM 80 are forced, upwardiy;v but the said stopsaresufliciendy strong to. normally prevent,` any. automatic rising and. foldingaof.. the spreader; arms e that possibly might. occununder Blessure or weight exertedionLthe table.
The sections. off the table. when;fold'ede-and thesameAv is trueyofithel embodiment ,ofEiguret5--- shou1d:be. lockedi together.r against.: accidentall respreading or separation-.ofthestandards; or un-l righta., and; to.-A this1end;preferable fastoningv de vices. are; illustrated` in; each. instance., that.: of; Figure; 5 comprising@ Swinging latch 8 5., pivoted atl-18,6 .tn one of the uprights,onstandardsn; provided; with hooks 1 81; adapted tol engage eyes 88. on theunder surface offthe tablesections: ifand l5: whenlowered, and-,whichenotches .engage ipins 8 Sfonlthezopposite: standardsor; supports at' points betweenthehooksq andthe pivotsziiir.v When idle Athis.. latch 8 5f..is,held by.; springV action' under` the pivot-1:86!
The equivalentxlocking; arrangementin, Figure 12,- comprises.` ashortxsocket section 90.'.split'at one end .511; and'. boltedf4 to one-ofv the4 standards'. or uprights 66.; asiat 9:2; the opopsiteendbf the. sec,- tiorriw l is open andi hollow kas at-.9.3. to constitute aereceiving socket forft'he. head 9A, ofia. latchpin 95:, fastened at d6 to; thecornpanion; pipe section 91., splitzat .its endA 98;: and: rigidlyrsecured tothe cross :pipe 1&byx bolting 9,9;
A spring pressed pin, |00., passing.:through van aperture |0|, in the, pipe sectioniw; and engagingV behind; thehead; 9.41ct thelatch; pint., prevents separation andaretainsfthegtable 01": Eiglille 1.0:in folded position untilxthe'latch.ismanually pulled apart: incident; tothe spreading oi"` the; table into usableshape;
lfzgarethesupporting castersfor frollersrfor.- the table. the same being adaptedto swing and be therebyI adjusted ina verticaldirection upon the cross bar |03A unitingfthe ends of the standards oruprightsI 66, the casters or-rollers beingsleevedV onfthiscrossbar by a. tube |04. Near the ends.
of .the tubel |04are crank armsv |05, connectedby links, His, pivoted thereto at. one end tothe portion of the bar 80; 'I'he arrangement is such that, assuming the positions of the castersorV rollers |02, to be that illustrated in Figure 10,van. inw.ard swinging movement ofthe standardsor uprights -66 tothe vertical dottedlline.position-incident to the folding of the table, and the raisingv ofthe coupling between theV rods 80. alongv the upright 84- will cause the endwise depression. of the.. rody 8 0 (that. illustrated in. dotted. lines) to f push. the link |06. downwardY correspondingly drawing. on the endfoff the arms |05 and rocking thecaster or wheel downwardly, through an arcuate.path .to maintain the caster or, wheel approximately, linewith-the rod 80 and effect abetter. rolling en?. gaglementwith the vfloor thanwouldhe the case werey the caster or .wheel ina severely oifsetorV angular `position as Wouldlbe the case were the` casterv or. wheel, not pivoted V and adjustable,l as stated.;
In Figure 13,and following .gures ofthe draw,- ings, still other modifications .or embodiments 0I the invention are illustrated, especially in reference tothe. automaticwheelor caster adjustment. and meansenabling dispensing with the casters or wheels.. Inthe elevation, Figure 13, the included supporting structure fragmentarily illustrated comprises the supporting standards or supports |01, corresponding tothe` standards or uprights of Figure 10, and, 22 of Figure l, connectedatthe forward endbya transverse member |08, adaptedto rotate as will appear, the opposite parallel standards |01 being tied, together byv a cross bar |09, rigidlypassing through the` standards |01 to prevent any separationof the standards |01 transverselyV of the apparatus.v
Intermediate the ends of the shaft |09` is; a sleeve ||0.capable of turning on the said shaft; the said sleeve carryingfat its opposite ends-on the undersides ofthe standards |01 crankarrns theouter ends of whichv have a loose slot and. pin connection H2` Withthel end of a com-f panon4 crank arm ||3 v fast withav sleeve ||4 rigidlyV connectedat ||5 to the near end ofl the rotatable tube |08 carriedby` the extreme outer ends of the standards or supports |01'.
Itisintended thatthe swinging of the undenframe, comprising the standards or supports-|01; ties |,09',and the bar or-tube |08, towards the verticalA position, directly below the table top (see dotted lines in the instance of Figure-10)` shall effectia gradual and corresponding turningj of thecaster orwheel support I5 integral with'the bushing` ||4- to maintainV the caster support in verticalpositionorY alignment with its standard |01`whenin central or storing state, tofacilitate rolling ofy the nested or collapsed table from place-to-place over the floor orfsim'ilar surface as', might befinterfered withshould severe-angular-relation of the spreadstandards or legs',` and their casters'or wheels,be maintainedthroughoutjlhe inward foldingl ofthe underframe includinglthe standards or uprights |01;
Inmounting the cross.Y tubing or rod' luik.` and theconnectedbushings H4., for rotative support at the endsfof the standards or supports 0.1,the latter. are.. providedV with hollow` couplings. HB.. in Whichthe ends ||1 of'cross tubing. ||8 fit. and constitute bearing furthe outside tubular meml ber |08 and bushings'.
. (i4. lIn .lieu of this arrangement, however, the tubev or rod Hilf-the equivalent of the cross tube |08 just previously v described--may be. passed through the supporting end caster orwheelcarrying member |20, the same being fixed for adjustingmovementwith rthe crankv armv |2| cooperating with the oompanion crank arm |22 lille.A the Aconnection between the arms and ||3 of the previously described gures. o
at each side of the underfraine are represented at |23, the cross tietherefor at |24 and caster or wheel support at |25.
VA pair of instrumentalities are' provided for.l
assurance in stopping the angular positioning or adjustmentr of the casters or wheels in their .movements with the standards |23 or their equivaient. 'Ihese instrumentalities comprising rst the limitations afforded by the adjustment of the Atable in a relatively immovable state, that is devoid of roller or caster bearings von the floor,this may beaccomplished by introducing into and adjusting lengthwise of the standards or supports |23, non-rotatable or friction feet |29 provided with stems |30 and spring latches |3| engaging through the wall of the standards or supports with cooperating shoulders or stops formed in the stems |30.
When the table of either form illustrated is folded into nested or closed position, that is, when in inoperative state when the table is not in use, means have been referred to for holding the standards in the folded or parallel relationship, notably the means 85, illustrated in Figure 5.
1. A table of the character described comprising top sections hinged together for movement upwardly or downwardly relative to a common horizontal plane, a relatively immovable section between said top sections, standards pivoted at their upper ends to the relatively immovable section adapted to swing outwardly and downwardly beneath the relatively movable sections, braces hinged to the underside or" the movable sections adapted to depend to the standards, and means for adjusting the braces in any of a number of positions on the standards to correspondingly fix the positions of the movable sections with reference to said immovable section, in combination with rollers at the lower ends of the standards, and connections movably related to said rollers and to the standards to effect uprighting of the rollers in keeping with the inward swinging of the standards from their inclined positions, said last-mentioned means being mounted and arranged to present the roller supports in approximately vertical position at an angle to the standards when the latter are in their inclined positions and in approximately vertical alignment with the standards when in their folded positions.
j 2. A table of the character described comprising top sections hinged together for movement upwardly or downwardly relative to a common horizontal plane, a relatively immovable section between said top sections, standards pivoted at their upper ends to the relatively immovable 1o In this instance 'the standard or support,l one sectionadapted to swing outwardly and downwardly beneath the relatively movable sections, braces hinged to the underside of thev movable sections adapted to depend to the standards, and means for adjusting the braces yin any of a numberofv positions on the standards to correspondinglydjlx the positions of the movable sections with'reference to said immovable section, incombination withrollers at the lower ends of the standards, and connections movably related to ,immovable section of thetop, and horizontal connections adapted to slide upon said rods and pivotallyv supported at their outer end portions to the inclined standards and connected at their ends to the rollersupports.
3. A tablevof the characted described comprising top sections one of which is hinged relative to the other for movement upwardly and downwardly relative to a common horizontal plane, standards pivoted at theirv upper ends to a relatively immovable section adapted to swing outwardly and downwardly beneath the relatively movable section, a brace hinged to the underside of the movable section adapted to depend to the standards, means for adjusting the brace in any of a number of positions on the standards to correspondingly x the positions of the movable section with reference to said immovable section, in combination with rods suspended by and depending from the relatively immovable section of the top, and horizontal connections adapted to slide upon said rods and pivotally supported at their outer end portions on the standards, adjustable rollers for the standards and connections between said rollers and said horizontal connections.
4. A table of the character described comprising top, middle and end sections hinged together for movement upwardly or downwardly relative to a common horizontal plane, standards pivoted at their upper ends to the middle section adapted to swing outwardly and downwardly beneath the relatively movable sections and braces hinged to the underside of the movable sections adapted to depend to the standards, means for adjusting the braces in any of a number of positions on'the standards to correspondingly X the positions of the movable sections with reference to said immovable section, in combination with rods suspended by and depending from the relatively immovable section of the top, and horizontal connections adapted to slide upon said rods and pivotally supported at their outer end portions on the standards, adjustable rollers for the standards and connections between said rollers and said horizontal connections.
5. In combination with a table having a middle section and extensions pivoted thereto adapted to be adjusted to various positions above or below a common horizontal plane of the sections, of a pair of downwardly and outwardly oppositely inclining supporting standards pivoted to the middle section and disposed beneath the end sections, braces between the end sections and the Vstandards adjustabiy' -ntting y*the 1arte-r, and
spreading :means forv 1holding the standards' "in 'their spaced operating position :the spreading means comprising aligned opposite'ly -dispo'sed members 'pivotally connected itog'etherat ftheir' top, standards `pvoted to `swing beneath "the same, a icross bar connecting 'the standards "together against separation, offset `arms `on Jsaid bar, A'and 'pivoted :Wheel vsupports having Jcrank 'whereby to 'adjust the Wheel Ysupport l"in Akeeping with 'the 'inward swinging 'movement of 5the Standard.
7. `A"ta'b1e ofthe character-'described having'a.
"top,` standards `pvoted to swing beneath Vithe same, `a. 'cross bar connecting'the standards ltogether against separation, 'offset VVarms no'n said bar, pivoted Wheel supports having-crank-arms pivotally 'oonnectedto nsaid offset V"ern's whereby to adjust the Wheel support intkeep'ingwiththe nwardswinging movement of 'the standards; and
meansfor 'limiting the swinging'movemento'ffthe piv'oted `.wheel Vsupports "including "a cooperating pin and slot connection.
*8. `In combination with yertable"rjfithe hara'oter standards *for retaining #the ftable againstrolion -thewheel lsuppots, vthe top sections fdf jtheftelble bi'ng pivdted to o'ccupy fpositions paralielf'to the standards when in folded condition, 5in-combina- 'tion 'with v-'spr'ing olips on -the A5top fsebtions arranged lto embrace vfthe V`'standards 5whereby the sections mayib'e claspedtoitheistandards'vifhen'fin the folded condition of the table. l
REFERENCES fCITED :The 'firowing referenties are 'of record in 'the 'Ie of "this patem SIHSLI'Ie'lS PATENTS