US1146068A - Extensible table. - Google Patents

Description

C. H. HARRIS.

EXTENSIBLE TABLE.

APPL| CATION FILED 0CT.26. 1911.

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C. H. HARRIS.

.EXTENSIBLE TABLE. APPLICATION FILED OCT. 26, I911.

Patented July 13, 1915.

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C. H. HARRIS.

EXTENSIBLE TABLE.

7 APPLICATION FILED OCT. 26, 1911- m 1,14 6 Patented July 13, 1915.

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COLUMBIA PLANOGRAPH (0.. WASHINGTON, D4 c.

C. H. HARRIS.

EXTENSIBLE TABLE. APPLICATION man 0CT.26, 1911. u Patented July 13, 1915.

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CLARENCE H. HARRIS, OF CHEYENNE, WYOMING, ASSIGNOR TO HARRIS-BROWN TABLE (30., OF RAWLINS, WYOMING, A CORPORATION.

EXTENSIBLE TABLE.

Specification of Letters Patent.

1"atente=11-Ja uly 13, 1915.

Application filed October 26, 1911. Serial No. 656,876.

To all whom it may concern Be it known that I, CLARENCE H. HARRIS, citizen of the United States of America, residing at Cheyenne, in the county of Laramie and State of Wyoming, have invented certain new and useful Improvements in Extensible Tables, of which the following is a specification.

The present invention relates to tables, especially to tables of the extensible type, and has for its purpose to provide a table of that character wherein the several extra leaves are automatically placed in position or removed from position by extending or collapsing the table proper; and wherein the arrangement is such that the extra leaves are, when not in use, eifectively concealed from View to the end of obtaining the highest degree of sanitation.

The invention further purposes an arrangement of the character in question which shall be simple in construction, neat in design, easy to operate, and wherein the cost of manufacture will enable the selling of the tables at a'comparatively low figure.

The invention has for its further purpose to provide an extensible table wherein the automatic mechanism for placing and removing the leaves is kept carefully concealed by side extensions on said leaves.

Nith these and other objects in View the invention consists in the arrangement and combination of parts hereinafter claimed, and while the invention is not restricted to the exact details shown and described, still for the purpose-of disclosure reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which V Figure 1, is a top plan view of a table constructed in accordance with my invention, and'showing the automatic mechanism in broken lines. Fig. 2, is av top plan view of the table omitting the carriage, top pieces, and auxiliary leaves, the table being shown extended. Fig. 3 is a top View, the top pieces and leaves being omitted, and the carriage shown in position, the table being shown collapsible. Fig. 1, is a side elevation, partly in section showing in full lines the mechanism as having elevated one of the leaves and the lowered position being shown in dotted lines. Fig. 5, is a similar view showing the mechanism for supporting the lifted leaves. Fig. 6, is a horizontal sectional view of the complete table, and Fig. 7 is a transverse sectional view taken on the line 7-7 of Fig. 6.

Referring to the construction in further detail, the construction comprises a table proper consisting of two sections, 1 and 2, having the usual supporting legs 3. Each of the sections 1 and 2 is provided with a permanent top piece 4L and a fixed bottom piece 5, providing between them the neces sary space for housing and concealing an extensible table section. The sections 1 and 2 are connected together by the usual pair of slides or runners, comprising each a strip 6 secured at one end to one section, and a similar strip 7 secured atone end to the other section. A strip 8 is located between each pair of strips 6 and 7 and has a dove tail sliding connection 9 therewith as illustrated in Fig. 7 A cross piece 10 connects the two center strips 8, and is adapted to be engaged by a part of the automatic mechanism to hold the same centrally with respect At either side the to the ends of the table. end sections 1 and 2 have the side portions 11 thereto cut away or slotted in the lengthwise direction to receive the side portions of the extensible table section or carriage as will be hereinafter described.

The extensible table section or carriage which supports auxiliary table leaves consists in a frame of parallel sections, each comprising four strips 12 providing between them longitudinal grooves or channels 13, and said side sections are connected together through the medium of a cross bar 14. The cross bar 1 1 has pivotally secured thereto the central pivot 15 of a pair of crossed levers 16. At one end the levers 16 are connected by links 17 to a pivot pin 18, which is adapted to be selectively engaged with the openings 19 that are arranged in a row that extends longitudinally of a block 20. The block 20 is in turn permanently secured to the bottom portion 5 of the table section 1, whereby to regulate or limit the extent of movement of said tongs 16. At their other ends the tongs 16 are connected by links 21 to a stud 22, which is designed to have slidable engagement in a slot 23 that is formed in a block 24, said block being in turn secured to the bottom of the opposite table section 2 and in line with the apertured block 20. This arrangement of the lower crossed levers and their fixed and movable connections with the table proper may be clearly seen and understood from Fig. 1 of the accompanying drawings.

. The carriage is provided with a plurality of supplemental table leaves 25 that are adapted to be moved into or out of position simply by extending the table or collapsing the same. Each of said leaves 25 is pivotally supported between two of the strips 12 through the medium .of a pair of dogs 26 and 27, which have hinged connections 28 and 29' respectively with the table section 2.

When the dogs are in raised position, as shown in Fig. 5, the table leaves 25 are on a plane with the tops 4 of the main table section and when said dogs are turned on their pivots 30 and swung within the slot 13, the table leaves 25 rest on the upper surfaces of the strips 12, and in this position are freeto be moved Within the space pro- Vided between the members 4 and 5 ofthe end sections land 2. An abutment block 31 for each dog 27 is secured between two of the strips 12 and has for its purpose to engage with the end of said dog 2 and limit the swinging movement thereof or whereby to hold the table leaf 25 in its properly raised position.

The mechanism for engaging with and raising the table leaves consists in a pair of pawls 32 oppositely arranged and mounted between the strips 12 to either side of the table. Each of the pawls 32 has a slot 33 within which is mounted the pawl pivot pin 34. Said pawls have each a heel portion 35, adapted to be engaged by a beveled head 36 on an arm 37, and there are two of such arms secured to either of the table sections 1 and 2. When the heads 36 of one pair of arms 37 engage with the heels 35 of a pair of pawls '32, said pawls are caused to be turned into substantially that position shown in full lines by Fig. 4, whereby the table leaf 25 is raised to its upper position or into the plane of the table tops of the permanent table leaves 4, the tops of the pawls also engaging the cleats 38. And when the table is then further assembled by moving the sections 1 and 2 toward each other, the raised leaf or leaves are brought into their proper positions. Each table leaf is provided with two cleats 38, which engage with and limit the swinging movement of the pawls 32.

' When it is desired to collapse the table entirely, or merely to shorten the same, the extent of one or two leaves it is necessary only that the table ends 1 and 2 be pulled in opposite directions for a relatively short distance, that is, suliiciently to engage the heads 36 with the pawl heels 35 and to slidethe pawls outwardly upon the pins 34,

when upon a release of such engagement between the heads and pawl heels, the pawls having been moved to become overbalanced, the same with the extra leaves 25 will by gravity allow the lifting pawls 32 to drop, and the leaf or leaves to be taken out are then lowered whereupon the table ends 1 and 2 are then moved against each other until the space of the omitted members is taken up. The table top will then present a smooth and substantial unbroken surface. The reclining position of the pawls is limited by the pins 34 to a position to enable the heads 38 to again engage the pawl heels for the purpose of elevating the pawls and extra leaves.

It is purposed to provide the table with tracks 39, fixed to the lower members 5 of the table end sections, and roller casters 40 arelocated at the four corners of the extensible section or carriage and are designed to be supported by said tracks as will be readily understood.

In order to efl'ectively conceal the inner mechanism from view, the end sections have each a downwardly disposed or overhanging portion 41, and each of the supplemental leaves 25 has a similar, but relatively shorter overhanging portion 42.

From the foregoing it will be seen that the levers 16 and links 17 and 21 form a toggle connection between the ends of the table by means of which both sections are simultaneously moved. It will also be clear that the apertured plate 20 provides simple means for permitting adjustments of the toggle. When the table is being extended to place a leaf, or leaves, therein, the heads 36 of the arms 37, rock the pawls 32, causing the pawls to assume upright positions, and as the leaves 25 rest 011 the pawls, they will carry said leaves with them. The dogs 26 and 27, to which the leaves 25 are hinged, permit the said leaves to be raised and the dogs 27 in addition, serve to prevent the said leaves being raised too far, by contacting with the abutments 31. The pawls 32 being provided with the slots 33, said pawls can be moved relative to the pivots 34 so that clearance can be provided for the heads 36.

It is obvious that those skilled in the art may vary the details of construction and arrangement of parts without departing from the spirit of my invention, and therefore I do not wish to be limited to such features as may be required by the claims.

Having thus described my invention, What I claim as new and desire to protect by United States Letters Patent is:

In an extensible table the combination of a main body comprising end sections; slidable connections between said sections; an equalizer connecting said end sections; an intermediate section between said end sections and connecting with said equalizer; a supplemental leaves when the end sections 10 plurality of supplemental table leaves; dogs are extended.

providing swinging connection between said In testimony whereof I aifix my signature supplemental leaves and the intermediate sec in presence of two witnesses;

tion and providing supports for said leaves;

pawls pivotally mounted on the intermediate CLARENCE HARRIS section and adapted to engage said leaves; Witnesses:

and members carried by said end sections H. H. BYRNE,

adapted to actuate said pawls to raise the T. LLOYD MOOKABEE.

G'opies of this patent may be obtained for five cents each, by addressing the Commissioner of ratents, Washington, D. G.

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