US590915A - smith - Google Patents

Description

' 2 Sheets-Sheet 1.

(No Model.)

, e. N. SMITH. lI IXTENSION TABLE.

Patented Sept. 28,1897.

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(No Model.)

. 2 sheetssheet 2. C. N.'SMITH. EXTENSION TABLE. N0. 590,915.

Patented Sept. 28, 1897.

A TTOHNE YS.

NTTED STATES v PATENT Finca.

CHRIS N. SMITH, OF ELGIN, ILLINOIS, ASSIGNOR OF ONE-HALF TO WILLIAM HORACE GILBERT, OF SAME PLACE.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters Patent No. 590,915, dated September 28, 1897.

Application led March 16, 1 8 9 '7.

To @ZZ whom, t may concern:

Be it known that I, CHRIS N. SMITH, of Elgin, in the county of Kane and State of Illinois, have invented a new and Improved Extension-Table, of which the following is a full, clear, and exact description.

This'invention relates to an improvement in that class of extension-tables in which a stationary main frame is provided and extensible leaves are held beneath the main frame in position to be drawn out when it is desired that the table be increased in size.

The invention will be fully described hereinafter and defined in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal section of 'my invention on the line I I of Fig. 2. Fig. 2 is a bottom plan View. Fig. 3 is a cross-section on the line III III of Fig. 1. Fig. 4l is a fragmentary side elevation of the invention. Fig. 5 is a plan view of one of the lifting and sup'- porting plates for the extensible sections of the table. Fig. 6 is a side elevation of a table constructed after my invention and hav-l ing a curtain attachment7 and Fig. 7 is a plan view of the same with parts broken away.

The top 6 of the main or stationary section has rigidly attached to each side edge a'metallic plate 7. The metallic plates 7 are corrugated longitudinally to strengthen them and are each provided with two extraordinary corrugations S, the corrugations S being respectively horizontally alined with each other in each plate 7 and forming guides in which the leaves 9 and 10 of the two extensible sections respectively slide.

The leaves 9 are carried by an extensionsection formedof two transverse rails 11, rigidly joined at their outer ends by an end plate 12 and at their inner ends by a crossbar 13. Each rail 11 is provided at the lower portion of its outer side with a groove 14E, running longitudinally through it. These grooves respectively receive the trackrails 15, which are secured, respectively, to the metallic plates 7 in position to support the rails 11. There are two leaves 9, and each leaf has secured thereto, by means of hori- Serial No. 627,795. (No model.)

zontally-extending ears 16, two lifting and supporting plates 17. The plates 17 are duplicates of-eacn other, and each plate has a diagonally-extending slot 1S formed therein, the lower end of each slot having a horizon tal offset 19. The slots. 18 respectively receive pins 20, carried by the respective rails 1l. The dotted circles in Fig. 5 indicate the position occupiedv by the heads of the pins 20. The arrangement of the leaves 9 and the plates 17 with reference to the rails 1l is such that when one of the leaves is raised up, as shown with reference to the left-hand leaf in Fig. 1, the plates 17 will have been moved so that the pins 2O will lie in the offset portions 19 of the slots 1S, thus supporting the plates 17, and consequently the leaf 9, to which they are attached, in the position referred to.

The leaves 10 are carried on an extensionframe composed of two longitudinally-sliding bars 2l, rigidly joined at their outer ends by an end plate 22 and at their inner ends by a crossbar 23. Fixed to the outer portion of each leaf 10 and on the under face thereof are two blocks 24, to which bars 25 are respectively pivoted. Each bar 25 is pivoted at its center to a bar 26. Each bar 26 is pivoted at its outer end to therespective bar 21. Each bar 21 carriesadjacent to the inner end of each bar 25 a block 27, having a groove 28 therein, which forms a passage. These passages formed by the grooves 28 respectively receive the free ends of the bars 25. Each bar 25 has a plate 29, forming a spur adapted to engage with 'a dog 30, fixed, respectively, to the blocks 27 and vlocated within the grooves 2S thereof. Vhen the portions of the bars 25. and 26 are n ioved onv their pivot so as to occupy the positions shown in Fig. a and at the right of Fig. 1, the plates 29 may be respectively engaged with the dogs 30, whereupon the bars 25 and 26 will be held in the extended position and the leaf 10, to which said extended bars are connected, will be supported, as shown. p Zhen it is desired that the leaves be lowered, the bars :Z5-are slightly raised to disengage the plates 29 and dogs 30, whereupon the bars may be folded tothe position shown at the left in Fig. 1 and in Fig. 3. Each bar 21 is provided at its outer face and near its lower portion with a groove 31. The

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grooves 31 respectively receive rails 32, fixed to the lower inner faces of the respective plates 7 and runnin g horizontally,so as to form guides whereon the bars 21 may slide. By these means the leaves lO are mounted on the sliding bars 21, which may be moved in and out from beneath the stationary top G. The bars 2l slide in a plane beneath the plane in which the bars 11 slide, so that when the table is folded the leaves 9 and 10 will lie in two superposed layers. If desired, the eX- tension-frames may be run out so as to einploy both leaves 9 and both leaves 10 or so as to employ only one of each. The extensionframes are operative independently, so that one may be idle and the other active. Also, the corrugations S of the plates 7 are so disposed that when the rails or bars l1 and 21 are run in and when the leaves 9 and 10 are in their folded positions the leaves will run through the respective corrugations 8.

The plat-es 7 are braced transversely by two cross-bars 3S, running between them. The end plate 12 and the end plate each carry blocks 31. The blocks 34 project inwardly from the plates l2 and 22 and are` internally folded to receive the folded upper portions of the respective legs 35. Each extensionframe is therefore provided with two legs, which are removable, if desired. The legs are shown in their two positions, respectively, by full andvdotted lines in Fig. 1 of the drawings.

In order to hold lthe leaves 9 and 10 in rigid connection with the stationary top 6 when the leaves are in use, I provide the inner end 7 of each leaf 9 and 10 with a fastening device 36. These fastening devices are adapted to coact with two fastening devices 37, respectively carried by the outer end edges of the stationary top 6. Vhen one leaf 9 and one leaf 10 are in use, as shown in Fig. l, the fastening devices 3C of each of said used leaves are respectively engaged with the fastening devices 37. This holds the extension-frames from further outward movement and forms a rigid structure of the table. Then both leaves 9 and both leaves 10 are in use, the inner leaf 9 and the inner leaf 10 have their fastening devices 36 respectively engaged with the fastening devices 37, which also holds the ten sion-fraines from further outward movement and makes a rigid structure of the table.

In the construction shown in Figs. G and 7 the end boards 12 and 22 of the table are each provided at their ends with plates 10. Adjacent to the inner face of each plate 4() is a spring-controlled roller 4:1, on which flexible curtains 12 are respectively wound. The free ends of the curtains are respectively attached to the four corners of the stationary portion of the table. Vhen one end of the table is contracted, as shown to the left of Fig. 6, theY curtains at such end are automatically wound up on the rollers 41. Vhen one end of the table is extended, as shown at the right of Fig. U and in Fig. 7, the curtains are rewound to fill the space otherwise left between the stationary portion and the end boards. The curtains i2 may be of any desired construction.

The purpose of providing the plates 17 at one end of the table and the bars 2G and 25 at the other end is to adapt the leaves 9 and 10 to the different heights which they have to be raised. rlhe leaves 9 are higher than the leaves 10 and may be readily raised by the plates 17, but the leaves 10 require the peculiar movement of the bars or levers 2G and 25 to raise them the necessary space. There is therefore a coaction between the several devices.

Ilaving thus described my invention, I

claim as new and desire to secure by Letters Patent- 1. The combination of a support, two bars pivoted thereon, a block carried by each support and having a dog, a table-leaf, and two additional bars pivoted to the table-leaf, the additional bars being respectively pivoted to the first-named bars and having their free ends capable of respectively engaging the dogs on the blocks, substantially as described.

2. The combination of a support, a dog carried by the support, a bar pivoted to the support, a table-leaf, and a second bar pivoted to the table-leaf and pivoted to the firstnained bar, the said second bar being capable of engaging the dog on the support, substantially as described.

3. In an extension-table, the combination of a stationary section having two guideways, two pairs of sliding bars or rails respectively running in the guideways, a table-leaf for each pair of sliding bars or rails, two bars pivoted to each other and respectively piv* oted to one table-leaf and to one pair of sliding bars or rails, whereby said tabledeaf may be held in the upper or lower position,a second table-leaf, and a diagonally-slotted plate carried by the second table-leaf and engaging a projection on the second pair of sliding bars or rails, substantially as described.

et. An extension-table having astationary section with a top, and with two side plates projecting downwardly therefrom, each side plate having two horizontal corrugations, the corrugations having two horizontal guideways, two bars secured to the inner face of each side plate and respectively below the corrugations therein, a sliding rail rested on each bar, the rails being arranged in two horizontally-alined pairs, the members of each pair of rails being rigidly joined with each other, an extension-leaf carried by each pair of sliding rails, and means in connection with each extension-leaf, by which they may be raised or lowered according to the position of the sliding rails, substantially as described.

5. An extension-table having a main portion, an extension section movable on the main portion, a curtain attached to the main IOO IIO

portion and extension-section, and it springpressed roll on which the curtain is wound, the roll winding` the curtain as the extensionseetion of the table moves into the main portion, and the curtain closing the space between the two sections when the sections are extended. f

G. An extension-table having` a main porvtion with a, rigid unbroken top, two pairs of rails or bars slidably held by the main portion and beneath the top, the said pairs of bars respectively moving in guidewa-ys one 'above the other, extension-leaves respectively eauried on the pairs of rails or bers, and means for mounting said extension-leaves whereby they may be raised and lowered on the seid bars or rails so as to lie level with the top of the mitin portion of the table or below the plane of said top.

CHRIS N. SMITH.

Witnesses:

GEORGE F. SpILLs, GEO.` B. WILEY.

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