US1143853A - Extension-table. - Google Patents

Description

B. E. OLSON.

EXTENSION TABLE.

APPLICATION FILED DEC. 11. 1913.

1 1%,53w Patented June 22, 1915.

THE NORRIS PETERS C0 PHOTO-LITHQ. WASHINGTON. D. C.

UNTTED @TATEFi PATENT @FFTCE.

BROR EUGEN OLSQN, 0F STOCKHOLM, SSASKATCHEWAN, CANADA.

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Specification of Letters'Patent. Patented June 22, 11915 Application filed December 11, 1913. Serial No. 806,125.

To all whom it may concern Be it known that I, Bron EUGEN OLsoN, a subject of the King of Great Britain, residing at Stockholm, in the Province of Saskatchewan, Dominion of Canada, have invented certain new and useful Improvements in Extension-Tables; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in tables, and particularly to extension tables.

One object of the invention is to provide a table of this character in which the ex-. tension boards will be automatically lifted into proper position successfully when the table is pulled apart.

Another object is to provide a novel means for supporting the board in proper position and means for operating such supporting means.

Other objects and advantages, will be apparent from the following description, when taken in connection with the accompanying drawings.

in the drawings: Figure 1 is a side elevation of my improved extension table. Fig. 2 is a bottom plan View. Fig. 3 is a vertical longitudinal sectional view taken on a line intermediate the sets of the extension slides. Fig. 4 is an enlarged transverse section on the line 44 of Fig. 3. Fig.6 is a fragmentary view showing one of the boards in elevated position, Fig. 6 is a longitudinal sectional View on the line 6-6 of Fig. 2.

Referring particularly to the accompanying drawing, 1010 represent the transverse battens, which are arranged in parallel relation, and disposed at opposite ends of the table. Secured to the batten 10 is a board 11, this board extending a short distance beyond the end of the table, and to a much greater extent toward the opposite end. Secured to the other batten 10 is the main table top 12, this board being considerably larger than the other and forming the greater part of the top of the table. The lower portion of the free edge of the board 12 is beveled as indicated at 13, and for a purpose which will appear hereinafter.

Secured to the underside of the battens 10 and 10 are the extension slides 13 and 14, these being arranged in pairs, and disposed between each pair is a third slide 15. On the inner vertical face of each of the slides 12 is formed a longitudinally extending undercut groove 16, and disposed to slide in the groove are the flattened heads 17 of the links 18 hereinafter described. Disposed longitudinally along the inner face of each of the slides 13, and mounted in the guides 19 is a rod 20, one end of which extends beyond the batten 10 and provided with a suitable handle 21. This rod is provided with a plurality of pairs of laterally extending pins 22 which are arranged to engage the before-mentioned links 18 when the rod is given a partial rotation and a longitudinal movement. Disposed between the board 12 and the extension slides are the extension boards 23 and 241, each of which carries on its underface at each end a plurality of springs 25, these springs bearing with their lower ends against the upper faces of the slides 13. As clearly shown in Fig. 8, these springs are compressed. Pivotally carried in recesses 26 in the lower face of the board 12 are the spring pressed levers 27, each of these levers carrying in its free end a roller 28, said roller being preferably formed of rubber so that the upper faces of the boards 23 and 2 1- will not be marred. Normally these levers 2'? hold the boards 23 and 24: in depressed position, and permit the board 12 to readily slide over them, when the table is being extended. When both of the boards 23 and 2% have been raised to the level of the table top the levers 27 swing down and rest on the slides 14: to support the board 12. On the inner edge, and on the lower face of the board 11 are depending stop members 29 against which the outer edge of the outermost board 23 engages so that said board cannot move under the board 11, but will be forced to move vertically upward and rest its outer edge against the inner edge of the board 11. The upper end of each of the links 18 is pivotally connected with the lower faces of the boards 23 and 24 as clearly shown. While I have described one operating rod, it will be understood that there is another similar rod 20 similarly mounted and operable on the other extension slide 13.

When it is desired to extend the table the parts carrying the boards 11 and 12 are pulled apart a distance equal to the width of the board 23, whereupon the springs beneath the board will immediately force the board upwardly flush with the upper faces of the boards 11 and 12. The links 18 being pivotally connected to the board 23 and to the slides l3, the board 23 'will be limitedin its upwardmovement thereby, these links also serving to hold the board 23 against depression during the use of the table. To extend the table farther, the end parts of the table are pulled a suificient distance to permit of the board 24: moving upwardly betwen the inner edge of the board 12 and the adjacent edge of the board 23.

To close the table the rods are given a quarter of a turn, pulled out, and held in this position. This results in the pins carried by the rods engaging with the links, and sliding the flattened heads along the slots, resulting in the lowering of the board 24 below the surface of the boards 11 and 12, and permitting the beveled edge of the board 13 to ride thereover and further depress the board so that the said beveled edge can be pushed against the board 23 to force the same against the inner edge of the board 11. To move the board 28, the operation of the rods is repeated, so that the board 23 will be forced below the top of the table and permit the edge of the board 12 to be forced against the board 11. The lever 27 engages one end wall of the recess 26 to prevent the lever from swinging past the vertical.

From the foregoing, it will readily be seen that I have provided a simple and eflicient folding table, and one in which the extension boards automatically spring up into place, when the table is to be extended. Attention is also called to the peculiar means employed for imparting an initial downward movement to each of the boards when the table is to be folded. What is claimed is: 1. In a folding table, transversely arranged end battens, extension slides connected thereto, table top sections carried by the battens, the inner free edge of one of the top sections having its under edge beveled, a plurality of resiliently supported boards disposed between the extension slide and the beveled top section, said boards being arranged in a longitudinal series in the same plane, depending stop members carried by the other top section for engagement by the edge of the adjacent board means, pivot-ally and slidably connected to the boards connected to between the boards and the extension slides for supporting the boards in elevated position and means carried by the successive slides for engagement with the said means to move the means out of supporting position, whereby the boards are given an initial downward movement.

2. In an extension table top, table top sections fixed to the frame of the table, vertically movable springpressed auxiliary boards supported below the table top, said frame including extension slides each provided with a longitudinal series of undercut grooves, links pivotally connected to the said boards and having heads slidably disposed in the grooves, and longitudinally slidable operating rods mounted on the extension slide and provided with laterally extending pins for engagement with the said links to impart an initial downward movement to each of the boards.

In testlmony whereof, I affix my signature, in the presence of two witnesses.

BROR EUGEN OLSON.

Witnesses I-IoLenR MUNOH, MATTHEW KENNEY.

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

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