US229128A - Alfeed t - Google Patents

Description

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Patented June-:22, 1880.

l 'Z5/m @MW mf /Wg NJETERS PHGTO-LITMOGRAPMEE WASHXNGYON. D. C.

UNITED STATES PATENT OFFICE.

ALFRED T. HEYMANN, OF HAMBURG, GERMANY.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters 4Patent N o. 229,128, dated .Tune 22, 1880. Application filed May 20, 1879. Patented in Germany November 3, 1877, and in England November 26, 1873.

To all whom it may concern:

p Be it known that I, ALFRED THEoDoE HEY- MANN,of the city of Hamburg, Germany, have invented certain new and uset'ullmprovements in Extension-Tables, for which were granted British Letters Patentdated November26,1878, and numbered 4,818, and also German Letters Patent dated November 3, 1877-, and numbered 1,040, and of which the following is a description, reference being had to the accompanying drawings, forming part of this specification.

rIhis invention consists in the combination, with an extension-table constructed with top sections and a series of longitudinal bars or rods connected with the slides by cross-bars, of a series of double leaves hinged in pairs and arranged one below the other, each pair of leaves being supported by and sliding on the said longitudinal bars or rods.

It also consists in the combination, with table-top sections, ot' a catch or stop of novel construction, which will be fully hereinafter described, for locking and holding the sliding sections in position and for allowing of their being successively drawn out as the table is extended'.

In the accompanying drawings, Figure 1 represents a plan view of an extension-table, showing the top of the table as open and its slides or sliding portions as extended, but with the folding or extension leaves still within the frame of the table, and before they are unfolded and adjusted to form the extended table-top. Fig. 2 is a partial transverse section, upon a larger scale, through the upper or frame portionof the table on the line y y, Fig. 1; and Fig. 3, a full transverse section of the said table when closed. Fig. 4 is a perspective view of one of the slides, in part, with a catch or holding device applied to the same for holding it in position while the other slides are being extended. Fig. 5 is atransverse section of an automatic catch applied to the slides and top of the table, and Fig. 6 is a plan view of the catch.

A, B, and C indicate table-top sections, of

. which there may be two, three, or more, to receive between them, when drawn apart, a varyin g number of folding or extension leaves, according to the length of table required 5 but in Fig. l of the drawings only three of such table-top sections are shown--thatis, two end sections, A B, and one intermediate section, C, with attached slides D, E, and F on op posite sides of the table. to correspond, and two sets of folding or extension leaves, G G', on either side of the intermediate section, G, when the table is extended. The end sections, A B, to which the inner and outer side slides, D E, are attached, have the table -legs L I secured to them. The slidesD E Fare constructed with longitudinal tongues and grooves to provide for the support of said slides and their movement one within or outside ofthe other, as in other extensiontables.

When the table is closed, as shown in Figs. 2 and 3, then the several top sections (which will be indicated by three letters, A B C) form the table-top proper; but when said table is open or extended, as shown in Fig. l, then spaces are left between said sections A B C for the adjustment of the folding or extension leaves G G to a level with said topsections, to form a continuous and extended table-top. Said leaves, when not in use, are adjusted to occupy positions inside of the frame or sides and slides of thetable, beneath the top of the latter, when closed, as shown in Figs. 2 and 3; but, whether in use or out of use, they are always attachments to the table. Thus said leaves, each of which is composed of' two folding sections, G G', hinged together as at b, are suspended by arms c on their upper sections, G, to freely turn on longitudinally-arranged rods J, Awhich aresupported by cross-bars K, connecting the opposite side slides, D ,D or E E, to allow of said leaves being turned and brought into a position level with the tabletop when required to be used.

L is another longitudinallyarranged rod, supported bythe same cross-bar K, attached to the same pair of slides for the lower section, Gf, of each extension-leaf to rest upon when not in use, and folded away within the frame'of the table beneath its top, and the several rods J and L of each set of leaves are arranged at such different elevations relatively with each other that when the extension-leaves are folded and the table is closed the several leaves or intermediately-disposed sets of leaves pass or take position one under or over the other, as shown in Figs-2 and 3. y

The extension-leaves G G may be arranged,

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either singly or in sets of two or more, between either two adjacent table-top sections.

Referring to Fig. l, which shows the tabletop opened and the side slides drawn out, but the extension-leaves G G as still folded and within the frame or upper side portion of the table, the following is the mode of adjusting said leaves when it is required to bring them level with the table-top: Each leaf or combined upper and lower sections, Gr G', is swung or turned over for half of a revolution, or thereabout, by its upper section, G, on the rod J, till the upper section, G, rests on the slides or sliding portions of the frame nearest to the rod J. The hinged sections G Gr are then opened and caused to rest on the top of the slides on opposite sides of the table, respectively, as the loose leaves or boards in other extension-tables are supported, after which the table-top. sections are pushed toward each other, holding the opened extension-leaves fast between said sections, with which they may engage by dowelpins.

The intermediate section or sections of the table-top may, if desired, also be provided with legs. Furthermore, the opening of the table, as well as the closing of it, may be effected either by hand direct or by the intervention of one or more screws. or other suitable mechanical means.

Reference will next'be made to Figs. 4, 5, and 6 of the drawings, which illustrate catches or holding devices applied to the slides of the frame of the table, by means of which one pair of slides after the other is caused to fully open as the table is drawn out. Fig. 4 represents a self-closing spring-hook, M, of which there may be any number, fastened to the inner sides of the frame underneath the table-top, and arranged to enga-ge with an eye, g, of the staple N, fastened to the ends of one pair of the slides. By pressing with the hand on the hooks M ot' one pair of slides the latter will be liberated to bevextended. It is preferred, however, to use an automatic means for holding or controlling the several slides, so that one pair after another is opened or extended in succession. Figs. 5 and 6 show one modification of such automatic means, and in which R S is ametal hinge, one plate, R, of which is fastened by means of screws to the under side of one of the tabletop intermediate sections, while the other or movable plate, S, is provided with two projections, h z'. The one, h, of these projections nearest to the joint 7c of the hinge is arranged to move Within or along a slot or groove, I., in the upper surface of one slide, D, and the other or outer projection, z', arranged to catch in a hole, m, in the next slide F, which is accordingly held from independently moving, or is held in a stationary relation with the table-top While the projection 71, moves freely in the groove l. Near the end of the slide D said groove l gradually rises to the level of the npper surface of said slide, whereby the projection h, riding up the rising end of the groove, lifts. the movable plate S of the hinge. This causes the outer projection, z', as the one slide D is fully drawn out, to be lifted out from the hole m in the slide F, and so disengages the latter from the table-top. The slide F isl then at libertj7 to be fully drawn. out, and by a similar catch or holding device applied to the slides E and F the slide F may be kept closed until the slide E has been fully drawn out, and so on for any number of slides.

I am aware that an extension-table has been constructed in which 'the leaves used to enlarge the table have been hinged together in the frame of the table and supported bypivots attached to one of the table-top sections, so that when the table-top is extended said hinged leaves can be swung out on their pivots a'nd lie in a horizontal position on the table-frame, and such, broadly, I therefore disclaim.

I do not claim the combination, with an extension-table constructed with top sections and attached slides and provided with longitudinal bars connected to the slides by cross-bars Iand arranged parallel with the said slides, of eX- tension-leaves hinged together at one edge and supported by and sliding on one of the lon gitudinal bars.

I claiml. The combination, with an extension-table constructed with top sections and a series of longitudinal bars or rods, J L, connected with the slides by cross-bars K, of a series of double leaves hinged in pairs and arranged one below the other, said pairs being supported by and IOO sliding on the longitudinal bars, substantially as and for thre purpose described.

2. rIhe combination, with the table-top sections, of an automatica]ly-operating catch or stop for locking or holding the sliding sections in position, and to provide for said sections being successively drawn out, composed of a hinge, R S, having one ot' its leaves fast to one of said sections and its other leaf or plate provided with projections h i, arranged to tit a groove, l, and a recess, m, in adjacent slides, substantially as described.

ALFRED THEODOR HEYMANN.

Witnesses:

J. ENGEL, FR. REINGKE.

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