US1275948A - Extension-table. - Google Patents

Description

L. LENARD.

EXTENSION TABLE.

APPLICATION FILED APR-28. I911.

Patented Aug. 13, 1918.

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L. LENARD'.

I EXTENSION .TABLE APPLI CATION FILED APR. 28. I91:

1,275,948. Patented Aug. 13, 1918;

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L. LENARD.

EXTENSlON TABLE.

APPLICATIONYFILED APR. 28 1917.

1,275,948. I PatentedAug. 13',1918.

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LOUIS LENABD, OF CHICAGO, ILLINOIS,

EXTENSION-TABLE wwwm Specification of Letters ratent.

Patented Aug. 13, 1918;.

Application filed Apr 128, 19 7. Seria1No. 165,130.

To all whom it mag concern:

Be it known that 1, Louis LENARD, a subject of the Emperor of Austria, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Extension-Tables, of which the following is a specification.

My invention relates to improvements in extension tables.

One of the objects of my invention is to provide an extension table within which the supplementary leaves are contained and to which. they are inseparably attached, preferably in a suitable receptacle below the outwardly movable sections of-the top, when said sections occupy adjacent positions, as when the table is contracted or closed, without theinterposition of the extension leaves.

Another object of my invention is to pro vide means whereby the longitudinally extendible parts may be moved with a minimum of effort and without the interposition of a great deal of friction.

Other and further objects of my invention will become readily apparent to persons skilled in the art, from a consideration of the following description when taken in conjunction with the drawings, wherein V Figure 1 is a plan view of a table, of the round type when the top parts are not extended, showing parts in section.

Fig. 2 is a section, taken on line 22 of Fig. 1.

Fig. 3 isan enlarged section, showing a portion shown in Fig. 2.

Fig. 4 isa section taken on line 4-1 of 5 is a longitudinal central section, taken on line 5'-5 of Fig. 1, but showing the supplementary leaves unfolded and in place, in the same horizontal plane with the segment members.

' Fig. 6 is an isometric perspective view showing one set or pack of leaves folded and in the position they occupy in the table, when the latter is closed or contracted to its smallest dimensions. i

Fig 7 shows the packof leaves'reyersed and elevatedonits supporting hinge bar, and two of theleave'sraised' in theact of placing them in the same plane with the movablesectionsof the top.

' Fig. 8 shows a further development of the operation of unfolding the pack, l Fig. 9*is a view similar to that shown in a 1.. were New stable- Fig. 10 shows an elevation of thetable extended.

Fig. 11 is an enlarged 1l11 of Fig. 9.

In all the views actors are employed to indicate similar parts.

15v is the table top base having a rectangusection taken on line 'lar central perforation 16 within which to contain the extension leaf packs and to which is attached, at its under surface four legs 17, 18, 19 and 20. The legs are braced together, near their bottom ends, by a brace 21 and are preferably mounted upon rollers or casters 22. A bar 23 extends across the opening 16 and'holds the opposite sides of the table top base parts 15 together.

Extending across the opening 16, to one side of its axis or center of thetable is a bar QAsecured in blocks 25 and 26. Two packs or sets of extension leaves, 27 and 28, there being fourleaves in each pack, are hinged to and slidable on the bar 24 by means of hinge cleats 29, so that each of the sets 27 and 28 may be rotated on and raised to a higher plane by the bar 2 1.

Each set consists of four leaves, 80, 81, 32

and 33. The leaves 30 and 31 are hinged together at their ends, as at 3 1 and the leaves 32 and 83 are hinged together at their ends, as at 35. The leaves 31 and 33 are hinged together at their side edges, as at 36, so that to unfold the leaves, as shown in Fig. 6, the two leaves 32 and 33 are lifted, as shown in Fig. 7 on the hinges 36 and laid out flat so that the end edges, farthest removedfrom the hinge portion, will lie in the same plane with the edges of the movable portions of the table top 10 and 11, as shown by dotted lines in Fig. 1. The sections ofeach set of leaves are then pushed together so that the dowel pins 12 and 13, as shown projecting from the leaf 80, will enter registering dowel holes in the leaf 32, thereby holding and maintaining them int-he same longitudinal plane. The leaf 80 and 30 of the respective sets, are each provided with a downturned the same reference charsupport 44, which rests upon the crossbar 39 that extends at one edge transversely of the opening 16 in the table base 15. p The parallelslide bars for supporting and guiding the'semi-circular segments 40 and 41 are b tantia ly pl a es awry p t with the exception that one is preferably right handed, and the other is left handed, so to speak, that is to say, the flangelof both the angle bars of a pair projects outwardly. WViththisexception they are alike and therefore I will describe one and this description will apply to all. A fixed-track for the parallel slide bars 45, of which there are two, each consists of a U-shaped member providing vertical side walls or limbs 46 and 47, which are substantially parallel, and which have their upper longitudinal edges inturned and ,downturned, as at 48 and 49 and provided with a connecting floor 50. The relatively stationary bar,.thus provided, extends, preferably, the full length of the table top base and is secured thereto by suitable means. The cooperating angle bar 51, a

pair of which is secured to-each ofthe seg-.

ments 40, 41, respectively, of the table top, 15 provided 'W1l1l1 a leg or flange 52 in a vertical plane, and a leg or flange 53, which is in alongitudinalplane, at right angles there to. The latter flange :53 issecured directly to the table top segment, the flange 52 is preferably wider, near its inner end, as at 54, and ca rries on its extreme wider or inner end two ball bearing roller pulleys 55.

' These pulleysare circumferentially grooved,

as shown at 56, withinwhich the downturned portions 48 and 49 of the members 46 and 47,;respectively, are included. Secured to the lower portion of the wider part 54, of the sliding bars 51, is another pair of ball bearing pulleys 58 having a smooth face, roll upon the floor .50, of the relatively stationarysliding member 45. Another pair of ball bearing pulleys-60 may advantageously be secured to the narrow portion of the bar 51, have a smooth face adapted to roll upon the lower surface .of the downturned portions 48 and 49 of the members 46 and 47 Located near the outer end of the member s.46 and 47 and secured .to each are another pair of ball bearing pulleys 61, which are grooved similarly .to the pulleys 55, ,to receive thelower edge ofthe narrow portion of the sliding bar 51. Now it is manifest that-when eithertop segment,40 01 41 of the table is moved outwardly or inwardly, in the act ofextending or contracting the top dimensionsof the table, that the bar 5lconnected to the respective segments of the table top,w,ill slide with very little friction within the respective members 46 and 47 of the stationary portions of theslidingbars owing to the ball bearing construction shown. Topermit the bars 51 to slide .freely Without interference, I provide a means for lower ng or vertically d splacing t S r 2 of the table :top. 'Lhe skirt 62is round and neatly -su1- 1'-oun dsthe base portion 15 of the table top. It is supported by rollers 63 which .enter grooves .64 made 51 .11 inner surface of the skirt. There are preferably as shown in dotted lines in Fig. 5, they extend circumferentially of the skirt 62, one terminal portion of which is in a higher plane than the other terminal portion vso that. when the skirt 62 is rotated it will be raised or lowered, owing to this fact, as the case may be. In Fig. 5 the roller, 63 is shown in the upper portion of the groove 64 and the skirt is shown lowered to its greatestextent so thatthe slides 51 willconveniently pass over the top of the skirt. Now when both sets of the leaves 31 and .33 inclusiveare folded into packs .and'reversec'l and thereby lowered below the plane containing the top sections, as shown .in Fig. 2, the segments 40 and 41 may be pushed together, ,into their normal positions. This movement will carry the bars 51 within the confines of the skirt 62, after which the skirt may be rotated, by which act it .will move upwardly intoa vertical plane, shown in dotted lines in Fig. 2. In this position the segments 40 and 41,,of the table top, may not again be moved ,out until the skirt is again lowered, by rotating it to a slight ex tent in the opposite direction-for the purpose described. This serves as a means for holding the segments ,together,'bu t as a supplementary means, I prefer to .place near the outer edge of each of the leaf segments 40 and 41, and depending from the lower edge thereof, a roller 65, .wl1 ich enters a circumferentially extending groove 66, when the skirt 62 is in its highest position with its upperedge substantially in contact with the lower edgeof .thesegment 40 and 41, so that when the skirt is rotated for the purpose of raising ,it, theengagement-of the inner .surface of the skirt with the roller 65 willtend to firmly hold the confronting edges of the segments 40 and 41 tightly together. In Figs. 9 and 10 I have shown a square table. In a square table thereis considerably more space for the .insertible leaves,,and therefore it may contain three or more sets, asshown in these figures, which areoperable and unfoldable in a similar ,manner.

In this particular square table embodiment theside portionsof the skirt 62? are fixed to .theitable base and the end portion 2* may esecur d directly to the table top he i .p efereh y m de of a s gle pi W h eae ptiani is sub tantial y the same as that heretofore described.

A button 68 may be secured to the cross bar 69 to hold the leaf packs 27 and 28 firmly in place when they are folded within the space provided in the table base 15.

While I have herein shown a single preferred embodiment of my invention with a slight modification thereof, it is manifest to persons skilled in the art that many changes and other modifications may be made within the scope of the appended claims.

Having described my invention, what I claim is 1. An extension table comprising two oppositely slidable outwardly movable top sections; parallel slide bar's connected to the underside of each section and extending inwardly; atop-skirt normally in the path of said bars, movable from said path to permit extension of said top sections, and leaves folded normally under said sections adapted to be raised and fill the space between said separated sections.

2. An extension table comprising two movable top sections; parallel slide bars connected to the underside of each section and extending inwardly; a top-skirt normally in the path of said bars, rotatable to move it below the path of said bars to permit extension of said top sections, and leaves folded normally under said sections adapted to be raised and fill the space between said separated sections.

3. An extension table comprising two slid ably movable top sections; parallel slide bars connected to the underside of each section extending inwardly and normally within the table-skirt when the table is closed; a rotatable top-skirt normally in the path of said bars, and guides to lower the skirt out of the path of said bars when said skirt is rotated, and leaves normally folded together and located below said sections, adapted to be unfolded and raised to fill the space between said sections.

4. In combination in an extension table, having a table top base, an outwardly movable top section supported on said base; a pack of four extension leaves, hinged together and foldable in a stack, one upon the other, and means, at one side of the axis of the table, to which one leaf of the said pack is hinged, and upon which it is longitudinally slidable, whereby when the pack is opened each leaf thereof lies in the horizontal plane with the outwardly movable top sections, and said hinge means permitting the extended leaves of the pack to be bodily slid when the movable top sections are moved into contact therewith.

5. In combination in an extension table, having a table top base, which is centrally open and longitudinally movable top sections supported on said base; a pack of four extension leaves hinged together and foldable, one upon the other, in a stack, and contained within the open part of said top base when folded, and means atone side of the axis of the table extending across said opening to which one leaf of said pack is hinged and upon which it is longitudinally slidable, whereby each leaf of the pack lies in a plane below the longitudinal plane of the longitudinal movable section when the table is closed and in the same horizontal plane with the outwardly movable top section when the pack is unfolded, and said hinge means permitting the extension leaves of the pack to be bodily slid when the table top sections are moved into contact therewith.

In testimony whereof I hereunto set my hand.

LOUIS LENARD.

Copies ofthis patent may be obtained for five cents each, by addressing the Commissioner of hints.

Washington, D. G.

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