US603078A - Extension-table - Google Patents

Description

.TU e e h S V t Dv e h S Qu EM N T HM C S W AX E u d 0 M O m No. 603,078. Patented Apr. 26, 1898.

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INVENTOR:

WITNESSES:

AX E (No Model.)

No. 603,078. Patented Apr. 26,1898.V

INVENTom (No Model.) 3 Sheets-Sheet 25A A. ESCHNER.

EXTENSION TABLE.

No. 603,078. Patented Apr. 26,1898.

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' is extended, and removed when the table is UNITED STATES PATENT @Erica ADOLPl-l ESCHNER, OF PHILADELPHIA, PENNSYLVANA.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters Patent No. 603,078, dated April 26, 1898.

Application filed August 26, 189'?. Serial No. 649,560, (No model.)

To all wtmn t may cnccrn:

Be it known that LADOLPH EsoHNEE, a citizen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in EXtension-Tables, of which the following is a speciiication.

Heretoi'ore in the use of extension tables intermediate leaves have been employed to form part of the table surface when the table shortened.

The removal and replacing of the intermediate leaves, and the necessity for storing them when not in use, has constituted an objection to tables of the class referred to.

lt is the object of my invention to provide an inexpensive, simple, and strong, extension table of such character that it may be shortcned or extended without the removal or replacing of the leaves forming its top or bearing surface.

ln the accompanying drawings I show and herein I describe a good form of a convenient embodiment of my invention, the particular subject-matter claimed as novel being hereinafter deiinitely specified.

ln the accompanying drawings,

Figure l is an under plan view, and Figure a View in side elevation, of my improved table, when the same is extended to its full length.

Figure 3 is a view in side elevation of my improved table when adjusted to a position in which it is less than full length.

Figure i is a view in side elevation of my improved table when the same is in its most compact form.

Figure 5 is a view in end elevation of the table when in the position shown in Figure 4.

Figure 6 is a central sectional elevational view on the line -fc of Figure 4, sight being taken in the direction of the arrows applied to said line.

Figure 7 is a view in perspective of one of the intermediate leaves.

Figure 8 is a view in perspective of one of the extremital leaves.

Figure 9 is a View in perspective of one of the end pedestals.

Similar letters of reference indicate corresponding parts.

In the drawings,

A A are the two end pedestals of the supporting framework, and a description of one will apply to both, inasmuch as said pedestals are counterparts.

Each end pedestal has two legs a, an end rail a', and two side rails a2, the upper edge of said end rail having two recesses d3, as shown especially in Figure 9.

A pair of supporting bars a4, forming part of said pedestal, project forward in parallelism with the side rails d2 to a point beyond the front extremities of said side rails, each of said supporting bars having one face provided With an undercut groove a5.

A guide bar 0.6 is shown as resting upon the upper edge of the free ends of the side rails d2 and also upon supporting plates d? (Figure 9), resting upon the supporting bars cti-said guide bars being provided with two slots as extending across it in the direction of the length of the table, which slots are slightly undercut.

The customary center pedestal B consists of a pair of supporting bars b, each having upon its opposing side faces projecting undercut tongues, engaged respectively in the grooves of the two longitudinally adjacent supporting bars ai of the end pedestals, said supporting bars b being held in parallelism between two transversely extending frame bars h' b2 (see Figure (i) to which they are rigidly secured, the frame bar b2 being provided with a depending leg b3.

By reason of the arrangement described, each opposing pair of the supporting bars a* of the two end pedestals are engaged in sliding engagement with an intermediate snpporting bar l), constituting a telescopic relationship, with the result that said end pedestals maybe moved toward and from each other and remain united through the' agency of the supporting bars l), so that the supporting framework of the table may be lengt-hened and shortened at will.

Vhen the supporting framework is shortened or closed to the limit of its movement, the ends of the side rails a2 of one end pedestal make contact with the ends of the side rails d2 of the other end pedestal, tongues in the ends of certain of said side rails engaging in corresponding grooves in other of said rails IOO to render the closure complete, andl makera smooth joint. Y

Vhen the supporting framework is thus closed it is approximately square in plan.

Suitable stops for preventing the supporting bars of the end pedestals from becoming disengaged from the intermediate supporting bars and such as those designated g in the drawings, are, of course, provided.

The table top is shown as consisting of live sections, namely, a central section, O, two intermediate sectionsD, and the two eXtremital sections E.

The central section C is provided with a depending rib C extending from side to side, from which rib depend a pair of links c' c (Figure 6) which pass through suitable openings in the frame b of the intermediate pedestal, and are at their lower ends provided With barbs or enlargements to prevent their withdrawal.

By virtue of the engagement of the depending links with said bar b said central section C is capable of being raised and lowered with respect to the supporting framework of thetable but cannot ordinarily be removed therefrom.

lVhen the table is extended to full length, as shown in Figures l and 2, the rib of the central section rests directly upon the transverse frame Z9.

The two intermediate sections D of the table top, are counterparts of each other, and each is provided as to its inner edge with a pair of locking blocks d, the front ends of which extend out beyond the inner edges of said intermediate sections, the rear ends and the sides of said blocks being undercut, and their front ends being slightly tapering in plan.

When the table is extended to its fulllength, as shown in Figures l and 2, said locking blocks are engaged Within the slots as formed in the guide bars of the end pedestals, and which they snugly fit, and when the locking blocks are thus engaged the projecting ends of the blocks pass beneath the edges of the central member C, the inner edges of said intermediate sections being in contact respectively with the opposing edges of the central section.

The extremital sections E E, which are counterparts, are each provided With a pair of supporting arms e e rigidlysecured to their respective under surfaces, and which arms extend beyond, but lie in a plane approximately parallel with the 'plane of, said extremital sections.

Said arms, when the table is extended to full length, are engaged in the recesses d3 in the end railsof the end pedestals, their free ends passing beneath the guide rails a, and they thus serve to support the sections E in the position shown in Figure 2.

In the position referred to, the inner edges of the extremital sections E are in contact with the outer edges of the intermediate sections D, as shown, said extremital sections being firmly maintained in vthat position by the engagement of stops e on the under faces of the arms e against the inner faces of the end rails of the end sections.

As stated, when the table is extended to its full length, the table bearing surface is composed of five sections, namely, a central section C, the two intermediate sections D, and the eXtremital sections E.

When it is desired to somewhat reduce the area of the table .bearing surface, the two end pedestals are forced vtogether until the opposing free ends of their respective side rails are in contact as shown in Figure 3. The intermediate sections D are lifted out of their place and placed each upon one of the extremital sections E, and each in such position that its inner edge is slightly nearer the center of the table than is the inner edge of the extremital section E upon which it lies,- and said intermediate sections D are then forced outward or away from the central section to carry the rear ends of their locking blocks CZ into engagement with recesses eX in the inner edges of the extremital sections E, (see Figure 8) the inner ends of said locking blocks being adapted to tightly engage in said openings. l

Said extremital sections E carrying the intermediate sections D are moved inwardly toward the center of the table, the arms e sliding through the slots or recesses d3, until the inner edges of the intermediate sections D, which they carry, come intocontact with the edges of the central section C, and when said extremital sections reach this position, stops e2 on the under faces of their arms e will, by contact with the vinner faces of the end rails, prevent the movement outward of said extremital sections and hold them firmly in position.

As the extremital sections `carrying the intermediate sections are being moved inward, as described, the central section C is elevated, so that the ends of the locking blocks dpass beneath its edges, with the result that when the eXtremital sections are brought to the position described, and which is shown in Figure 3, the central section will rest upon the protruding inner ends of said blocks and be thereby supported in position, said central section being furthermore supported by t-he two guide bars d6 which are brought into contact with each other when the end pedestals are close together and upon which the depending rib 0X of the central section rests.

As will be understood, the bearing surface of the table will, when in the position shown in Figure 3, be further from the floor a distance equal to the thickness of a section than it was when in its fully extended position shown in Figures l and 2. l

WVhen it is desired to reduce the bearing surface of the table to its smallest compass, the central section is slightly elevated, and the sections D E at the left hand of Figure 3 forced inwardly and beneath the left hand IOO IIO

end of said central section, and the sections D E at the right hand end of Figure 3 forced inwardly and beneath the right hand end of said central section, so that the parts occupy the position shown in Figure 4, the square central section C constituting the upper surface of the table, andthe four sections D D and E E being assembled and concealed beneath it in the manner clearly shown in Figure 4.

In this position of the parts the opposing arms e of the opposing extremital sections E are so disposed as, when brought together, to pass by or overlap each other, so that they may be snugly assembled beneath the table as shown in Figure 4.

Anti-friction rollers f may be applied at the points shown in the drawings, as well as at such other points as they may be found useful in rendering smooth and easy the manipulation of the parts of the apparatus.

s shown in Figure 9, the front edges of the guide bars a are provided with semi-circular recesses a9 which when the supporting framework of the table is closed together into its smallest compass, receive and surround the depending links c' of the central section C.

As will be understood, many changes in detail of mechanical construction maybe resorted to without departure from the spirit of my invention.

Having thus described my invention, I

claiml. An extension table consisting of an extensible supporting framework, composed of end pedestals, and an intermediate pedestal, said end pedestals having end rails embodying recesses, and being provided with guide bars having slots in their upper faces, and a table top comprising a vertically adjustable central section, two structurally independent intermediate sectionsprovided with locking blocks, and two structurally independent end sections, provided with supporting arms, the locking blocks of the intermediate sections being, when the table top is extended to its full length, engaged in the guide bars of the pedestals, and the supporting arms of the end sections being engaged in the recesses of the end rails of the pedestals, substantially as set forth.

2. An extension table consisting of an eX- tensible supporting framework, composed of end pedestals, and an intermediate pedestal, said end pedestals having end rails embodying recesses, and being provided with guide bars having slots in their upper faces, and a table top comprising a vertically adjustable central section, two structurally independent intermediate sections, provided with locking blocks, and two structurally independent end sections, provided with supporting arms, carrying stop blocks, the locking blocks of the intermediate sections being, when the table top is extended to its full length, engaged in the guide bars of the pedestals, and the supporting arms of the end sections being engaged in the recesses of the end rails of the pedestals, substantially as set forth.

3. An extension table consisting of an eX- tensible supporting framework, composed of end pedestals, and an intermediate pedestal, said end pedestals having end rails embodying recesses, and being'provided with guide bars having slots in their upper faces, and a table top comprising a vertically adjustable central section, two structurally independent intermediate sections, provided with locking blocks, and two structurally independent end sections, provided with supporting arms, said sections being capable of three arrangements, to wit, an extended position inwhich they are all placed side by side, an intermediate position in which the end sections are disposed beneath the intermediate sections, and a closed position in which the intermediate sections and end sections are all disposed beneath the central section the locking blocks of the intermediate sections being, when the table top is in its extended position, engaged in the guide bars of the pedestals, and when said top is in its intermediate position engaged in recesses in the inner edges of the end sections, the supporting arms of the end sections being engaged in the recesses of the end rails of the pedestals, substantially as set forth.

In testimony that l claim the foregoing as my invention I have hereunto signed my name this 19th day of August, A. D. 1897.

ADOLPH ESGHNER.

In presence of F. NORMAN DIXON, Trios. K. LANCASTER.

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