US1302420A - Extension-table. - Google Patents

Description

P.v N. NYHOLM. EXTENSION TABLE. APPLICATION man FEB. s, 1917.

vd mw Patented Apr. 99,1919.

3 SHEETS-SHEET 2- LSOZAQL,

P. yN. NYHOLM. EXTENSION TABLE. APPLICATION FILED FEB. I9I1.

Patented Apr. 29, 1919.

3 SHEETS-SHEET 3.

PETER N. NYHOLM, OF EDGEWOOD, WASHINGTON.

EXTENSION-TABLE.

Specification of Letters Patent.

Patented Apr. 29, 19121.

Application led February 8, 1917. Serial N o. 147,360.

To all whom it may concern.'

Be it known that I, PETER N. NYHOLM, a citizen of the United States, residing at Edgewood, in the county of Fierce, State of Washington, have invented certain new and useful Improvements in Extension-Tables, of which the following is a specification.

This invention relates to tables such as are ordinarily known as dining tables and especially to that rclass thereof adapted to be extended by the separation of the end portions and the insertion therebetween of one or more intermediate leaves.

The objects of the invention are to provide means for operating the two end portions whereby they may be separated or drawn together by turning a crank; means whereby said parts may be locked in such position so that the extended table may be freely moved without the said parts pulling apart .when under the strain of being moved; means for storing the intermediate leaves within the table; and means whereby said leaves may be inserted in place with ease from one side of the table. The invention further consists in certain improvements in the construction of the table, and its leaves, whereby it is thoroughly practical and convenient, and yet does not represent any substantial increase in expense. j

I attain: these and other objects by the devices, mechanisms, and arrangements illustrated in the accompanying drawings, in which- Figure 1 is a plan view of my improved table in closed position, a part of the top being broken away to reveal the interior thereof;

Fig. 2 is a cross-section thereof;

Fig. 3 is a plan thereof in extended position;

Fig. 4 is a cross-section of a part thereof, showing the leaves being removed from the interior thereof;

Fig. 5 is a section Vof a portion of the table top showing the leaf-supporting-bar gui e;

Fig. 6 is a perspective view thereof;

Figs. 7, 8 and 9 are views showing the leaf engaging the supporting bar and, respectively, in positions before it is unfolded, while unfolding, and after it is unfolded and isin position for use;

Fig. l0 is a section of a part of the leaf and its folding apron;

Figs. 11 and 12 are views of the operating drum showingY it iniloclred and unlocked or operating positions, respectively.

Similar numerals of reference refer to similar parts throughout the several views.

The table illustrated in the drawings is provided with a central leg 1 and a split hollow pedestal 2 surrounding said leg when the table is in closed position. The central leg 1 supports a central cross-bar 3 above it, and each half of the pedestal 2 supports a similar cross-bar 4. These three bars 3 and 4 support the entire table top by means of two sets of sliding bars. Each such set of sliding bars consists of one inside bar 5 secured to one section 6 of the fixed table top and to one of the cross-bars 4, an adjacent central bar 7 secured at its center to the central cross-bar 3, and a third adj acent outside bar 8 secured to the other section 9 of the fixed table top and to the other cross-bar 4. These bars 5, 7 and S are fastened together in such manner that they permit a relative longitudinal sliding motion past each other in the usual way. Referring particularly to Fig. 1, it will be observed that a drum 10 is mounted under the table top 6 and is provided with two cables 11 and 12 secured thereto and wound thereon. The two ends of the cable 11 pass toward the right from the said drum while the cable 12 passes to the left therefrom. One end of each cable passes over suitable guide pulleys from the drum 10 and is fasten'ed to the outside sliding bar 8 at 13 while the other end passes over other guide pulleys along the inner sliding bar 5 and around a pulley mounted on the far end of said bar 5, thence back between the sliding bars 5 .and 7 to and around a pulley mounted on the near end of said central bar 7 thence back again between said bars 5 and 7 and around a pulley mounted on the far end of said bar 7, thence between the bars 7 and'8 and secured to said bar 8 at a point 14 adjacent its near end. Thus when the parts are in the closed position (Fig. 1) and the drum 10 is rotated in counterclockwise direction the ends of the cables secured to the outer bars 8 at 14 are pulled so that the bars 8 slide away on the central bars 7 and the inner bars 5 slide forward on said bars 7, thus separating the cross-bars 3 and 4 and the table tops 6 and 9 (Fig. 3). Similarly the reverse motion of the drum 10 slaclrens the above-mentioned cable end and tightens the other end thus drawing the bars 8 and the top 9 forward and the bars 5 and the top 6 rearward, thus closing the table tops together.

Referring now to Figs. 11 and 12 show ing the details of said drum and its operating and locking mechanisms. The drum is mounted on a rotatable pipe or hollow shaft 15 suitably supported below the table top G adjacent the apron 16. A ratchet 17 is slidably mounted in the1 end of the drum 10, having its teeth projecting sidewise so as to engage the staple or other tooth 1S in the inner face of the apron 1G. This ratchet is pressed outward by a spring 19 thus bringing its teeth into such engagement with the tooth 18. A pin 20 is secured to the ratchet and passes through or across the shaft 15 through a suitable elongated slot 21 therein. The operating handle 22 is adapted to be inserted in the open end of the shaft 15 and is bifnrcated at its end so as to span the said pin 20. The end of the slot 2:3 forming said bifurcation is adapted to engage the said pin 2O and to push it laterally in the slot 21 so as to remove the teeth of the ratchet 17 away from the tooth 1S and thus unlock the said drum 10. The drum may then be turned in either direction by rotating` the handle. A spring latch 2l, having beveled sides, is also mounted `in the drinn 10 and passes inward through a hole in the shaft 15 and is adapt-- ed to engage one of two notches 25 in the end of the handle 22 when it is in such posi tion as to unlock the drinn, as above described, and to hold it in such place in the drinn until it is desired to relnove it thus again lock the drinn. It is evident from the above that the table may be opened or closed by turning the handle and that as soon as the handle is removed the table parts are locked together since the drum cannot be turned.

Referring now to Figs. 1, 2, 3 and 4 it will be observed that a pair of strips 26 are mounted immediately above the crossbars 3 and L1, one said strip being secured to each of said bars a and extending past the other over the central cross-bar 3. These strips form a support for one end of the folded intermediate leaves when they are not in use. rlhe other end of the folded leaves is supported by a half-round bar 2T which is hung from the under side of the two top sections 6 and 9. The bar 27 has an upward extending foot or hanger 28 formed at each end, said foot being slidably supported by a guide piece 29 secured to the said top sections G and 9. Said hanger 28 passes through a slot 30 in said guide piece 29 so that, as the sections 6 land 9 are slid apart, the bar 27 remains to span the space between them. The bar 27 is of sufficient length to carry all the eXtra leaves of the table. The leaves are supported from said bar 27 by means of a strap 31 secured to their lower sides (when unfolded) as hereinafter described.

Each leaf is divided transversely into two equal parts 32 and 33, and saidparts are fastened together at their dividing line by suitable hinges 311 (Figs. 7, S and 9). One end of each strap 31 is secured to the under side (unfolded, Fig. 9) of the part 33 and extends therefrom to a point adjacent the center of said part 33. The half-round bar 27 passes `between said strap 31 and the part 33 of the leaf, said bar engaging said central end of the strap when the leaf is folded away (Figs. 1 and 2). Wfl/'hen the ends of the parts 82 and 33 are lifted up and pulled forward (Fig. e) the strap 31 slides on the bar 27 until it reaches its end (Fig. 7). A stop 35 is secured to the part 33, ad-` jacent the end of the strap 31, said stop having a. notch 36 adapted to iit the half-round bar 27, so that when the end of the part 32 is raised, after it has been drawn forward, it i will bc prevented from sliding on the bar 27 (Fig. S) and so that when the said part is completely opened out the end now forming thc center of the unfolded leaf will be supported (Fig. 9). The aprons 38 on the ends of the leaves are hinged to the respective parts 32 and 33 and are preferably provided with light springs 37 (Fig. 10) to insure that they assume a vertical position to register with the aprons 16 of the table tops G and 9.

`Having described my invention, what I claim is:

In an extension table, the combination with two permanent top sections, of a table leaf supporting bar suspended from the under face of said sections, a leaf divided transversely with its parts hinged together', a strap secured at its ends to and with its intermediate kportion spaced from the under face of one of the sections of the said leaf, the said bar being slidably mounted between the underface of the leaf and the said strap, a stop secured at one endof said strap between the strap and table leaf, a notch in said stop adapted to receive said supporting bar, said supporting bar functioning to support the table leaf in its extended and folded positions. v

PETER N. NYHOLM.

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

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