US1750968A - Extension table - Google Patents

Description

March 18, 1 930. w. P. sA ER 1,750,968

EXTENS ION TABLE Filed March 23, 1928 2 Sheets-Sheet 1 March 18, 1930. w. P. sAuER EXTENSION TABLEv Filed March 23, 1928 2 Sheets-Sheet 2 Patented Mar. 18, 136

UNITED STATES WALTER P. SAUER, OF FOREST HILLS, NEW

PANY, OF NEW YORK, 1v; Y.,

YORK, ASSIGNOR T 'I'I-IEODOR SAUER COM- A CORPORATION OF NEW YORK EXTENSION TABLE Application filed March 23, 1928.

This invention relates to improvements in extensible tables and has for one of its objects the provision of such a table provided with leaves hidden underneath a table top. The said table top being adapted when the leaves are extended to a predetermined position, to drop ,by gravity into a plane even with the plane of the leaves and form a continuous surface with the said leaves.

Another object of the invention isto provide means whereby the table top will automatically rise above the top surface of the leaves when the table is operated for extension or retraction.

A further object of the invention is to provide means whereby the table top will gradually assume a position even with the leaves at a predetermined point.

Another object is to produce a device of the character described in which the maximum simplicity of construction and operation is secured. I

Other objects and advantages will appear as the nature of the improvements is better understood, the invention consisting substantially in the novel arrangement and co-relation of parts herein fully described, and illustrated in the accompanying drawings, wherein similar reference characters are used to describe corresponding parts throughout the several views, and then finally pointed out and specifically defined and indicated in the appended claims.

The disclosure made the basis of exemplifying the present inventive concept suggests a practical embodiment thereof, but the invention is not to be restricted to the exact details of this disclosure, and the latter, therefore, is to be understood from an illustrative, rather than a restrictive standpoint.

The inventive idea involved is capable of receiving a variety of mechanical expressions, one of which, for the purposes of illustration, is shown in the accompanying drawings, in which:

Figure 1 is a top plan view of one end of my improved table with some of the parts omitted therefrom.

Fig. 2 is a top plan View partly in section Serial No. 264,036.

of the table slides and table top raising means.

ig. 3 is a sectional 33 Fig. lshowing the tractive position.

table in normal re- 1g. 4 is a similar view to Fig. 3 with some.

of the parts omitted therefrom, showing the leaves fully extendedand spaced from the side edges from the table top.

Fig. 5 is a fragmenta'l' sectional view showing the table top in its lowered position. and

the leaves abutting the sides of table top.

Fig. 6' is a fragmental view showing the position of the table top raising means when the'leaves are being retracted.

Fig. 7 is a sectional view taken on line 77 Fig. 3.

view. taken on line Fig. 8 is a frontview of the rear or trip I latch carrying plate.

ig. 9 is a top plan view thereof. ,Referring now to the drawings in detail 10 indicates a table supporting frame, and having secured thereto a stationary slide member 11 1n operative relation with movable slides 12 and 13. At the bottom of the stationary slide 11 there is provided a gear 14 rotatively mounted on a bracket 15 secured to the said slide 11, the said gear 14 is inmesh With toothed racks 16 and 17 secured to the movable slides 12 and 13 respectively. Upon the movable slide 12 and uponthe movable slide 13 there there is secured a leaf 18' 1s s1m1-' larly secured a leaf 19and overlying the said 7 leaves there is a table top 20 normally resting upon the said leaves when the table is fully retracted. i

Upon exerting an outward pull upon one of the leaves the table top 20 which is provided with depending arms 21 having rollers 22 mounted thereon and thesaid rollers normally resting in a. cutout in plates 24 secured to the movable slides 12 and 13, the said rollers will ride out 25 on to a surface 26, thus raising the table top above the leaves 18 and. 19. As the slides continue to be drawn outwardly the rollers will be supported upon the top. surface 26 of the plates 24 and upon the top of plates 27 of the notches or cutouts,

IOU

the said opening by the extreme end'ofthe,

' 36 on the said plates table top, this caused considerable noise each v The said-latches are'movedinto contact with I i grooves I or cutouts assume a position 1 and'will bring the cutout 27 is providedwith a cutout 29 and the plate 28 is provided with a similar'cuto'ut 30,'wh1ch when thetable is in contractedjposition;will

V as shown in Fig. 3. During the outward movement; of the slides 12 and 13 to extend the table, a pin 31- in the. slide 12 w-ill contact-with a shoulder 32 on the plate 27f whichis' slidably mounted 'upon. screws'or studs 33 entering into the slidell in alinementiwith' the opening in the rear plate 28 as shown in Fig. v4, the roller 22 mean I while being prevented fromdroppinginto plate2 l. Likewise a pin 35 in the slide 13 will have actuatedsimilar plates27 'and28 similarly mounted but on the opposite" side of theinner stationary slide 11. Upon eXert-, ing'an inward pressure upon the ti 'a'me 1 0 the movable slides 12 and 13; will move. inwardlyl carrying' the plate 24 with them and theirollers 22 will ride down upon inclines :Up'to the present time intables of thisnature,

drop by gravity into alinement with leaves when extended, no provision was: made fora 7 rear plates 28 and 28 respectively and said latches will be trippedso that the ends 39 oi of the saidlatches Wlll: restupon pins 40.

the said 111540 by means of tension springs 41 coiled around studs 41-2 slidably supported in studs or posts43 secured in therear plates 28;;and-28 respectively, and operating in v 44 in "the, stationary slide member: 11, sufiicientclearance being providand 30 toperm t for this movement of the latches 37. 1

To retract the tablethe frame' againdrawn outwardly'with the leaves in "the Fig.

tposition. Duringthismovement the rollers I I p 22 will havebeen' liftedto the position shown in Fig.6 byithe inclined surface 36 on: the

' plates-24 and-the tension springs 41 will have 7 moved the rear'pla'tes 28 and 28 'into position shown inFig; 6gth'u's providing means for maintaining the table top'wabove the leaves 18 and 19 until saidleaves are fully re tra cted, that is'when they againassume' the Fig. 3'pos1tion'.' "Slots 46' and a'f -inthefplates 27 and 27 a andslots 48 and e9}i'n"--the plates 281 ;:and 28eiwill limit 'thelmovenient of the 7 said plates ' trear plates 28 and 28 29 in the said plate and into the cutout's 29 of the'plates27 and28 and the table top will be-gradually lowered 'to-assume the position -shownzin Fig; 5.-

that is in tables where the table top will we being extended.

v table top in raised ed betweenthe rollers22 and theicuto'uts 29 when the table is being extended or retracted. The plates '27 and 27 e, as well as the plates 28 and 28 are returned to their normal position by means of pins 50 and 51 in the slides 12 and 18 respectively;

The plates 2? and 27? are each provided with a pin 52 extending ito a slot 53 in the these plates 27 and 2"" wardly by the pins 31 and 35 independently of'the plates 281a'nd 28* as they are slidably mounted on the screws 23 but they will be returnedsimultaneously by the pins 50 and 51 against'the tensionof thejsprings e1.

It will also be seen that due tothe gear and rack arrangement theslides 12 and "13 will It will; be seen that I may bemoved outmove in opposite directions and carry their respective leaves'outwardly of the table top; a

when extended and inwardly when retracted; V r

It is to be understood that a second set of slides and table top raising and lowering mechanism, as above described, 1S1 provided 14 at theoppo'site end of the-tablei From the above it will beseen that I have provided an extensible-table having means for maintaining atable' top above the leaves the said table top when the said leavesfare' l-laving described 'my invention,

Patentis; a 1. In an extensible table, a stationary slide thereof when said leaves are being extended or retracted and for gradually loweringthei said table top-gradually and'silently lowering 7 I what l i claim asnew and "desire to secure by Letters-Y "a movable slide in operative engagement f". a

therewith, a leaf secured to the said movablej slide, atable top normally overlying the leaf when in retracted position, a dependingpro jection on thetable top,a member on the movtermittently "contacts posed upon mounted von the fixed s'liderto maintainthe slide, means on the movable slide for alining the cutouts 1n the plates when the movable is being eXte'ndedor r-etraGtedQplates supereach oth'er, provided with cutouts lnormally out of alinementf and slidably':

positioniatqa;predetera *5 'min'e'd point in the travel of thejmovable" slide isnearing its outward limit of travel, 7

the table topto enter the cutouts so: that the a plane even with the leaf when the saidleaf is partially retracted.

2. In an extensible table,

movable slide in operative engagement a stationary slide, i

l and a cam on the member-fixed to the [movable i V slide to permit the depending projection on .5

said table top may gradually be lowered to l therewith; a leaf secured to the said movable de, a table top normally overlying'the leaf 4: en in retracted posit on, a depending pro jiection onthe table top,,a member. on the movable slide with which the said projection inableslide with-whioh tliesaid projectioninfto maintain the table top at a predetermined'height when the leaf termittently contacts to maintain the table top at a predetermined height when the leaf is being extended or retracted, a plate slidable mounted on the fixed slide having a cutout therein in alinement with the depending projection on the table top, a latch pivotally mounted on the said plate, a stop against which the latch normally abuts, spring means on the said plate to urge same and the latch against the stop, a second plate slidably mounted on the first mentioned plate and provided with a cutout normally out of alinement with the cutout in the first mentioned plate, means on the movable slide for bringing the cutout in the second mentioned plate into alinement with the cutout in the first mentioned plate when the said slide is nearing the end of its outward movement, a cam on the movable slide member to permit the depending projection on the table top to enter the cutouts so that the said table top may grad: ually be lowered to a plane even with the leaf when the said leaf is partially retracted and an extension on the latch in the path of the projection on the table top adapted to be actuated thereby to release the latch from its stop and swing the said latch to rest on top of thestop to permit the cutouts in the plates to assume their unalined position when the cat is again extended prior to retraction,

3. In an extensible table, a stationary slide, a movable slide in operative engagement therewith, a leaf secured to the said movable slide, a table top normally overlying the leaf when in retracted position, a depending proj ection on the table top, a member on the movable slide with which the said projection intermittently contacts to maintain the table top at a predetermined height when the leaf is being extended or retracted, a plate slidably mounted on the fixed slide having a cutout therein normally in alinementwith the depending projection on the table top, a latch pivotally mounted on the said plate, a stop against which the latch normally abuts, spring means on the said plate to urge same and the latch against the stop, a second plate slidably mounted on the first mentioned plate and provided with a cutout normally out of alinement with the cutout in the first mentioned plate, means on the movable slide for bringing the cutout in the second mentioned plate into alinement with the cut-out in the first mentioned plate when the .said slide is nearing the end of its outward movement, a cam on the movable slide member, an exten sion on the latch in the path of the projection on the table top adapted to be actuated thereby to release the latch from its stop and swing the said latch to rest on top of the stop to permit the cutouts in the plates to assume their unalined position when the leaf is again extended prior to retraction, and means on the movable slide to bring the plates to normal position when the leaf is fully retracted.

or retraction, a table top-normally overlying the leaves, means on the table top to maina leaf'secured to each means on the slides to produce inrelatively oppo -S1l3 direction when actuated for expansion tain same at a predetermined height While the leaves are being fully extended, a set of plates in sliding relationto each othermounted on. each side of the with each other, means on the movable slides to bring the said cutouts into alinement at a predetermined point of the outward travel of the said slides, and means on the movable slides to permit the table top to be lowered when the movable slides are partially retracted.

5. In an extensible table, a stationary slide, a movable slide in operative engagement therewith, a leaf secured to the movable slide, a table top normally overlying the leaf, means on the table top to maintain same at a predetermined height while the leaf is being fully extended, a set of plates in sliding relation to each other mounted on the fixed slide and of alinement with each other, means on the movable slide to bring the said cutouts into alinement at a predetermined point of the outward travel of the said slide, and means on the movable slide to permit the table top to be lowered when the said movable slide is partially retracted.

6. In an extensible table, a stationary slide, a movable slide in operative engagement therewith, a leaf secured to the movable slide, a table top normally overlying the leaf, means on the table top to maintainsame at a predetermined height while, the leaf is being fully extended, a set of plates in sliding relation to each other mounted on the fixed slide and.

provided with cutouts normally out of alinement with each other, means for bringing the said cutouts into alinement at a predetermined point of the outward travel of the movable slide to permit the table top to be lowered, and means for again bringing the cutouts into their unalined position prior to retraction of the table. r

7. In an extensible table, a stationary slide, a movable slide in operative engagement therewith, a'leaf secured to the said movable slide, a table top normally overlying the leaf when in retracted position, a depending pro j ection on the table top, a member on the movable slide with which the said projection intermittently contacts to maintain the table top at a predetermined height when the leaf is being extended or retracted, a plate slidably mounted on the fixed slide having a cutout therein in alinement with the depending projection on the table top, a latch pivotally fixed slides and provided with cutouts normally out of alinement provided with cutouts normally out,

mounted on the said plate,j a steps againstwhich the latch normally abuts, springimeans on the said plate .to urge san'ie and the latch v 'againstthe' stopfa second plate slidably mounted on'the first mentioned plate and pro- "vided with a cutout normally out of alinement with the I cutout. in the: first mentioned plate, means on the movable slide for. bring- 7 ing the cutout in the second mentioned plate 19 into alineinent with thecutout in the first I mentionedplate when the said slide is neara V ingrlthe end of its outward movement and j I means onthe movable slide to permit the:

; gradual lowering ofthe table top and to per- 15 mitthe depending proj eet-ion to enter the cutoutsto trip the latch to again position the eutoutsto their unalined relation when they leaf is again extended prior to 'retraction.

7 WALTER PfSl lUER. I

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