US1154023A - Extension-table. - Google Patents

Description

I. KARISH.

EXTENSION TABLE.

Patented Sept. 21, 1915.

3 SHEETS SHEET 1.

VEEI l:lE Is aac/fwfzisfi I. KARISH.

EXTENSION TABLE.

Patented Sept. 21, 1915.

3 SHEETSSHEET 2.

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EXTENSION TABLE.

APPLICATION FILED FEB. 14. 1914.

1 1 54,023 1 Patented Sept. 21, 1915.

3 SHEETS-SHEET 3.

ISA C KARISH, OF CHICAGO, ILLINOIS.

EXTENSION-TABLE.

Specification of Letters Patent. I Patented Sept. 21, 1915.

Application filed February 14, 1914. Serial No. 818,818.

To all whom it may concern.

Be it known that I, ISAAC KARISH, a subject of the Czar of Russia, and a resident of normally concealed beneath the usual table top sections when the table is in closed .position. In the simplest type of extension tables, the leaves to be inserted in the table when the same is extended, are usually stored away and when used necessitate handling, .which is exceedingly inconvenient, especialy where the table leaves .are of large size and comparatively heavy. However, in my invention I employ an extension table very simple in construction, and provided with a number of sectional leaves which, after the table top sections have been extended, may be elevated to the plane of the table top by actuation of a lever.

It is an object of this invention to provide an extension table wherein-the leaves at all times associated therewith are normally concealed beneath the table top sections, but may be elevated intoposition for use when the table top sections are separated, by the actuation of a single lever. i

It is also an object of this invention to provide an extension table wherein a plurality of sectional leaves are elevated into position by the simple movement of a single lever when the table is extended and where- 'by one or more of said sectional leaves may be returned to position out of use as desired,

depending upon the size of'the table desired. It is also an object of this invention to construct an extension table having a plural-.

ity of sectional leaves associated therewith and adapted to be elevated into position for use when the table is extended, and wherein said sectional leaves are disposed with one section overlying and supported on another section, to permit the top section to be slidably moved into position for use without rotation of any of the sections;

It is also an object of this invention to provide an extension table wherein, when the table is extended, the leaves for insert1on may be elevated by suitable blocks, and supported thereon in position for use.

It is also an object of this invention to provide sectional table leaves wherein the sections are supported in position out of use with one section resting upon another, both sections-facing upwardly, and with a slidable hinged connection between said sections permitting the upper'section to be slidably moved upon the lower section into a position flush therewith with the ends of the sections abutting and interlocking with one another.

It is furthermore an object of this invention to provide a centrally supported table wherein the table top sections, the sectional leaves, and all the mechanism are at all times supported by a rigid transverse member secured to said central support.

It is finally an object ofthis invention to construct an extension table of exceedingly simple construction and consisting of few parts and entirely free from intricate mechanism, and yet readily extensible to a larger size without inconvenience, and with little labor. I

The invention (in a preferred form) is hereinafter more fully described and defined in the accompanying drawings and specification.

In the drawings: Figure 1 is a top plan view of a device in extended position and illustrating a plurality of leaves, each one of said leaves being shown in one of the three positions capable of being assumed thereby. Fig. 2 is a side elevation of the device as shown in Fig. 1. Fig. 3 is a sectionon line 33 of Fig. 1, with parts omitted and parts in elevation. Fig. 4: is a section on line 44 of Fig. 1, with parts omitted and with the sectional leaves shown in their retracted position. Fig. 5 is a fragmentary section on line 55 of Fig. 1, with parts omitted and with parts in elevation. Fig. 6 is a section taken on line 66 of Fig. 5, but illustrating the table leaves only, and with all of the same elevated. Fig. 7 is a detail view of the slidable hinged connection between the respective table leaf sections taken on line 77 of Fig. 5. Fig. 8 is a detail section taken on line 8-8 of Fig. 1, and illustrating the operation in dotted lines.

As shown in the drawings: The support for the table consists of a central leg 1,hav-

ing secured transversely over the top thereof a relative wide and heavy member 2. Rigidly secured on the extremities thereof are guide members 3, each of which onthe outer side is provided with a dovetail groove 4., and on the inner side with a similar tongue 5. Semi-circular table top sections 6, and 7, are provided, and secured on the section 6, are guide members 8, having dovetail tongues, which engages in the groove 1, of said guide membersd Likewise secured on the table top section 7, are guide members 9,.wh1ch are provided with grooves, suitably engaged by the tongues 5, on'the guide members 3. Thus the table top sections 6 and 7, meat all'times supported by' the sliding engaging guide member-sand are permitted movement relative one another and the fixed: transverse member 2, to extend or close the table as desired. Also secured on said transverse member 2, are longitudinally extend mg members 10, to which are hlngedly connected triangular blocks 11, 12, and 13, re-

When the sections of the table'leaves are in position for use their ends abut one another and their top surfaces arefiush, 1n the position of the sections 13 and 13 shown in Fig. 1, but'at all other times one section, which may be termed the 5 section rests upon the other section, which may be termed the a section.

A slidable hinged connection exists between the respective a and 6 sections of the table leaves, and this comprises a three part hinge, a portion 15, of which is secured to the a section, and a portion 16, of which is -connected to the 7) section by means of a T-shaped element 17, which-slides-in a T- shaped groove or slot 18, provided in the under surface of the 6 section, and said hinged elements 15 and 16, are connected together by the third hinge element 19.

For the purpose of elevating the sectional table leaves into position for use when the table is extended, actuating bars 20, are rotatably mounted in bearings 21, on'the respective members 10, and said bars or rods 20, are provided with arms 22, and 23, respectively, of which the arms 22, are turned outwardly and are adapted to contact with the intermediate blocks 11, 12, and '13, and the arms 23, are adapted to respectively contact with the outer blocks 11,

and 13, to raise said blocks. "For the pur- I 13,are shown in position for use.

pose of actuating or rotatingf said rods20, cranks 2a, are rigidly secured thereto and are pivotally connected at their ends to, curved links 25, which are in turn pivotally connected to anractuating rod 26, mounted to move longitudinally along one side of the transverse member 2. A link 27', is connected to the end of said actuating rod 26, and is pivoted to a manually operatable lever 28, which is pivoted at its inner end beneath one of the transverse member The operation is as follows:

and 7 are drawn apart sufliciently to per-- mit the three sectional table leaves tobe.

. guide members 3, on the When a is desired to enlarge the table thesections '6.

projected upwardly therebetween.- This is:

accomplished by manual actuation of the l ever' 28, which, causing a movement of the rod 26, rotates both of the rods 20, bymeans Of course,

of the cranks 24, and links 25. g a rotational movement of the rod 20, will cause an elevation of the respective arm sv22,

and 2 3, which, bearing against'the base of the triangular blocks, elevate the same about of the table leaf sections therewith. The

two positions of the table leaf sections and the blocks are clearly illustrated "in Figs. 3,

and 5, Fig. 3 showing thetable leaf and-the blocks lying beneath the table top with the table leaf out of use, and Fig. 5. illustrating the table leaf sections, elevated into position, and of course with one section resting upon another prior to the adjustment thereof. Of course, actuationof the lever 28, serves to elevate all of the table leaves into the position of the sections 12 and 12 shown in Fig 5, and should it be desired to use a less number of leaves. any. one, of the same. may be slightly lifted at its outer edge the hinges and cause a consequent elevation and allowed to move with its respective blocks downwardly again into position out of use, after which of course the tabletop 1 sections 6 and 7, may be'closed towardjone another, retaining in use only the table leaf or leaves desired;v 'In'Fig. 1, theleaf sections 11, and 11 are shown in position out of use, whereas , thetable leaf sections 12 and 12 are shown in the position inwhich the same are elevated through the elevation of the respective supporting blocks therefor, and prior to the movement of the section 12 over the section'12' into proper position for use, whereas the table leaf sections 13?,and

As clearly shown in Figs. 8, 4, 5,,and

8 i the abutting ends of the respective table leafl sections a and b' are angled, andla groove I i I.

29,'is provided in the. a section to ,receive therein the tongue 30,-of the Z section to.

securely lock the sections together, and of course the T-shaped slot 18, in the 5 section is sufficiently long to. permit the retractive movement of the Z2 section prior. to-the insertion of the tongue 30, in the groove 29. When the leaves are in position out of use, they rest upon and are supported by the longitudinal members 10, of the table, and when in position for use, are supported upon the triangular blocks, as Well as the guide members 3, 8, and 9, respectively, as clearly 7 shown in Figs. 1, 2, and 5.

I am aware that various details of construction may be varied through a wide range without departing from the principles of this invention. I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention:

1. An extension table, comprising a sectional top, table leaves adapted to be concealed beneath said top when the same is in closed position, pivotal connections between said table leaves and the table to permit raising and lowering of the table leaves and to retain said leaves elevated, and means for actuating said pivotal connections simultaneously to elevate all of the leaves at one time and adapted then to be retracted to permit lowering of certain ones thereof independently of the others.

2. An extension table, comprising table leaves adapted to be contained and concealed therein, blocks pivoted to said table leaves and to the table to raise and lower the table leaves when actuated and to retain said leaves elevated, and mechanism for simultaneously operating all of said blocks to elevate all of the table leaves at one time and adapted then to be retracted to permit lowering of certain of said leaves independently of the others. i

3. An extension table, comprising table leaves adapted to be contained and concealed therein, blocks pivoted to said table leaves and to the table to raise and lower the table leaves when actuated and to retain saidleaves elevated, arms for moving said blocks to elevate the table leaves, and a lever for actuating all of said arms simultaneously and for retracting said arms to their initial position independently of the blocks and table leaves-to permit lowering of certain of said leaves independently of the other.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses:

ISAAC KARISH.

Witnesses:

CHARLES W. HILLS, Jr., FRANK K. HUDSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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