US1870222A - Extension table - Google Patents

Description

Aug! 9, 1932- w. BALSCHUWEIT 1,370,222

EXTENS I ON TABLE Filed May 31, lQSO 3 Shee ts-Sheet 2 35 1115 6105mm; g -3 Aug, 9, 1932. w. BALSCHUWEIT EXTENSION TABLE Filed May 31, 1930 3 Sheets-Sheet 3 Patented Aug. 9, 1932 UNITED STATES WILHELM IBALSCHUWEIT, OF YORK, NLY.

EXTENSION TABLE Application filed May 31, 1930. Serial No. 458,253.

This invention relates to improvements in extension tables, and it is the principal object of my invention to provide an extension table allowing an extension of a compact and comparatively small table for a considerable length.

Another object of my invention is the provision of an extension table, the extension leaves of which are so arranged as allowing the lifting of the inner leaves in order to position the outer leaves beneath the same and a moving of the superposed outer and inner leaves under the table plate in the center.

Still another object of my invention is the provision of an extension table equipped with supports for the extension leaves of a peculiar construction allowing at their inner ends sufficient space for the inward movement of the outer leaves while their outer ends form a firm support for the outer leaves when the table is extended.

A further object of my invention is the provision of a suitable locking means for the single extension table leaves.

A still further object of my invention is the provision of an extension table of comparatively simple construction, yet solid and eflicient in its operation.

These and other objects and advantages of my invention will become more fully known as the description thereof proceeds and will then be specifically defined in the appended claims.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a top plan view of an extension table constructed according to my inven tion.

Fig. 2 is a cross-section through the same on line 22 of Figure 1.

Fig. 3 is a longitudinal section on line 33 of Figure 1.

Fig. 1 is a fragmentary sectional view of one corner of the table.

Fig. 5 is an end view thereof.

Fig. 6 is a perspective view of part of the table support.

Fig. 7 is a detail view of a locking cleat.

As illustrated, the table top is made in several sections, the middle or central section 10 of which has depending pins 11 adapted to be guided in openings 12 of a cross-strip 13, supported by legs 14 carrying also a lower or bottom plate 15. On this plate 15 are slidably arranged the pairwise arranged supporting members 16, 17, on one side, and 18, 19, on the other side and at one end of the table, while similar members 16, 17 and 18, 19 are similarly arranged at the other table end, guided between guides 20, 21. 0

The guide members 16, 17, 16, 17 and 18, 19, 18, 19 are each of peculiar construction having upper straight edges, while their lower edges are cut away at the inner end to form inclined faces 22, members 17 and 19 66 and 17 and 19 are connected by cross-bars 23 adapted to slide along the upper edges of members 16,17 and 16, 17.

Hinges 2 1 on these cross-bars connect the same with the inner edges of the inner leaves 25 of the extension table in order to allow a lifting of their outer ends for permitting the inward movement of the outer leaves 26 below leaves 25, as indicated in Figure 6.

In order to support the extension leaves in their extended positions, pairwise arranged legs 27 are hinged at their upper ends to cross bars 28, and braces 29 attached to said legs 27 and the inner members 17, 17, hold the legs in their leaf supporting position.

Lower tenons 30, 31 and 30, 31 limit the outward movements of the members 16, 1'7, and the parts are locked in their unextended position by means of a locking device shown in Figure 7 consisting of a cleat 32 adapted to be attached by means of bolts passed through openings 33 to the underside of leaf 26 and having a depression 34 formed with its upper face adapted to receive cross-bar 23 and to engage the inner edge thereof by W means of its claws 35,while a bolt 36 passing through bar 23 allows depression of the cleat to disengage its claws from bar 23. It will be clear from Figures 4 and 5 that in the assembled position of the table leaves 10, 25, and 26, the hook 35 will engage cross-bar 23 attached by means of the hinges '24 to leaf 25 and lock leaf 26 in position with leaf 25 clamped between leaf 10 and 26. If, however, leaf 25 is extended to assume the position carrying cross-bar 23 and the locking device into the position shown in Figure 5,

plate will drop on pin 86 and disengage hook 35 from cross bar 23 allowing an ex- 5 tension of leaf 26. r

The operation of my device will be clearly understood from the above description and simultaneous inspection of the drawings, and it will be evident that a pull exerted on leaves 25 will slide bars 23 and leaves 26 outward with members 16, 17 16, 17' and 18, 19, 18, 19 following their movement until their pins 30, 31 engage the respective cross bars. If now the front or outer edge of plates and 26 is lifted about the hinges 24, bolt 36 will be depressed to disengage the claws from bar 23 and allow an extension of leaves'26.

The inclined faces of the members will 2Q allow a lowering of their respective ends to support with their other ends the bars 25 and 26 when extended, while the auxiliary feet 27 will offer an additional support on the floor.

During the inward movement of the extensions these steps will be repeated in the reverse order.

It will be understood that I have described and shown the preferred form of my extension table only and that I may make such 30 changes therein as come within the scope of the, appended claims without departure from the spirit of my invention.

Having thus described my invention what I claim as new and desire to secure by Letters .15 Patent is:

1. In an extension table of the class described, a pair of normally concealed superimposed leaves, a cross-bar hingedly attached to one of the table leaves, a cleat on each of m the lowermost extending leaves, having a depressed portion for the reception of said cross-bar, claws engaging the inner edge of said bar and a bolt adapted to depress said claws to disengage the same from the crossbar to allow an extension of the outermost leaves.

2. In an extension table, a pair of normally concealed superimposed leaves, a means for locking the leaves of said table in their un- 0 extended superposed position, said means comprising a cross-bar hingedly secured to one of the table leaves, a cleat attached to the lowermost table leaf, having a depression for the reception of said cross-bar, claws on said cleat normallyengaging said cross-bar, and a pin adapted to be depressed by the table top upon the extension of the leaf to which said cross-bar is hinged to disengage said claws from the cross-bar to free the lowermost leaf for its extension.

In witness whereof I have signed my name to this specification.

WILHELM BALSCHUVVEIT.

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