US1728917A - Extension-leaf table - Google Patents

Description

2 Sheets-Sheet (I7 INVENTOR A/v/EL G. ANDERS oN BY aaeuautin ATTORNEY D. G. ANDERSON EXTENSION LEAF TABLE Filed March l0 sept. 24, 19,29.v

Sept. 24, 1929. D. G. ANDERSON EXTENSION LEAF TABLE Filed March 10 1925 2 Sheets-Sheet 2 R. N l. l a M v wk B ATTORNEY Patented Sept. 24, 1929.

PATENT OFFICE DANIEL G. ANDERSON, OF LOS ANGELES, CALIFORNIA, ASSIGNOR. '.10v BARKERBROS., INCORPORATED, OF LOS ANGELES, CALIFORNIA, A CORPORATION 0F .DELAVAR-Ev EXTENSION-LEAF TABLE Application led March 10, 1926. Serial N o. 93,563.

This invention relates more particularly to an extension leaf constructionL adapted to be applied to tables of a particular type provided with stationary tops that may be quickly changed into tables possessing the well known characteristics of other types. This construction is designed along the lines of my extension leaf constructions, as shown and described in my United States Letters Patent entitled Extension leaf constructions for tables, No. 1,662,228, dated Mar. 13, 1928, and Extension leaf for tables, No. 1,641,518, dated Sept. 6, 1927. In the constructions referred to the tables are provided with down- 1' wardly extending immovable aprons adjacent their edges, and a special form of hingeconstruction was necessitated to extend under and around the aprons when the leaves were brought to an extended position. Such special hinges in which one hinge member was of a curved and elongated `form was somewhat objectionable in that as such hinge member owing to its excessive length, stability of the structure was affected when the leaves were extended) in a noticeable degree. Also the leaves when extended required support in the form of slide bars.

By means of my present construction by arranging a pair of the oppositely disposed aprons to swingon hinges, the use of such special curved hinges as required in tables with immovable aprons is dispensedwith, the swinging aprons serving as a support for the table leaves when in an extended posit-ion.

( beneath the top taken on line 1-1 of Fig. 2.

An important object of my present invenyating mechanism when not in use- Fig. 2-is a bottom plan view of the table showing the extension leaves in a chambered position. f

Fig. 3-is a longitudinal section through the table top, showing one of the leaves in a chambered position, taken on line 3-3 of Fig. 2.

Fig. 4-is a top plan view of the table show-l ing one of the extension leaves chambered and one extended, parts of the top being broken away to disclosethe leaf mechanism.

Fig. 5-is a detail cross section through one of the side edges of the table top showing the leaf in a partlyv extended position. Y

Fig. G-is an enlarged transverse section through the table top showing one of the leaves extended and the other leaf partially extended. Fig. 7-is an. venlarged sectional view through one of the side edges of the table with the leaf in an operative position.

Fig. 8-is a sectional view similar to the above, but showing one ofthe extension leaf slide bars and guideways in elevation.

Fig. 9--is an enlarged top plan view of one of the leaf hinges.

Fig. 10-is an enlarged side view of one of the hinges in an extended position.

Fig. 11-is a detail view of one of the extension leaf hinge connections.

Referring now more particularly to the accompanying drawing,T in which an embodiment of my invention is .illustra'ted, 10 designates `a table top of the-stationary type, of'elongated form having rounded or curved ends 11, 12, and straight side edges 13, 14, provid'edwith longitudinally extended grooves, and depending end aprons 15, 16. Secured to these end aprons and spaced apart from the under face of the table top is a shelf member` 17, designed to carry the extension leaves and their oper- Secured to the under face of the shelf member at each end are table legs 18, 19 of an approved design having bases 20, and the usual connecting brace 21 found in tables of the type illustrated. p

As the extension leaves and their operating mechanism are. exactly similar, and for brevity of description only one will be described.

Secured to the upper face of the shelf member are a plurality of wood cleats arranged in pairs, two pair for each extension leaf, the oppositely disposed side edges of each set of pairs being grooved to form guideways for a plurality of wood slide bars 26, as best shown in Fig. 4. Each of these slide bars have longitudinally extending grooves 27 that engage upwardly extending pins 28 that act as stops to limit .the outward movement of the slides when they are drawn outwardly, see Fig. 5.

Each extension leaf is attached to a pair of the slide bars 26 by hinges that are similar to and operate in the same manner as the well known parallel rulers, the hinges serving to elevate the leaves from their folded chambered positions to their extended positions with their upper surfaces disposed inthe same plane as the table top, as shown in the various views of the drawings. Hinges 32 comprise a flat top plate member 33 adapt-ed tobe rigidly secured by screws to the under face of the extension leaf, and a similar plate 34 adapted for securement to the upper face of the slide bar 26. Secured to the ends of keach of plates 33, 34, by pivot pins 35 are connecting hinge members 36, 37 of equal length arranged in parallel relation to each other, in order that the leaves may be folded against the slide bars when not in use, or elevated to engage the vtable top edge when extended as bestillustrated'inthe several sectional views of the drawings.

Secured by leaf hinges 40 of usual form to each of the side edges of the shelf member are movable aprons 41, 42, that serve to close the openings to the chamber beneath the table top when the extension leaves are chambered therein, and to also act as a support for the outer ends of the slide bars when the leaves are in an extended position.

From the above it is thought the operation of extending and chambering the extension leaves will be clearly apparent. Assuming that the leaves are in a chambered position as l shown in Fig. 1, when it is desired to extend the same to enlarge the surface of the table top, the swinging aprons 41, 42, are swung downwardly to the position shown 'in-Fig. 6,

their upper surfaces lying flush with the surface of the shelf member. The operator then grasps the table leaf and pulls the same forwardly out of the chamber together with its slide bars into the position shown in Fig. 5,

the stops 28 limiting the outward movement of the bars. The leaf,V is then pulled forwardly the hinge 32 elevating the same to the level of the table top as shownV to the right in Fig. 5. When in this position the leaf is pushed toward the table until its abutting edge engages the grooved side edge ofthe table top, this position being clearly shown in Fig. 7 of the drawings. It vwill be noted that when the leaf lis pushed into engagement with the table top edge that the slide bars will also Y ends of the move inwardly therewith, the swinging apron 41 furnishing adequate support for the leaf. In order to prevent an accidentall collapse o f the hinge member 32, when in an extended position, leaf member 33, is provided with an opening 45, having an inclined wall..v 46,

against which the hinge member 37 abuts, said member passing through the opening.

From the above it will be observed that my improved table will present to view when' in an extended or unextended position,tables of two distinct types, and by reason of my novel hinge and yslide construction the leaves may be quickly and noiselessly extended into position,or concealed from view within the chambered portion of the table.

lVhat l claim is:

1. An extension table includingr a Stati' i ary top provided with a chamber therebelow, said chamber having a pair of oppositely disposed openings, swinging closures for said chamber openings. slide `members secured to the bottom wall ofthe table chamber, a leaf edge of t-he table top, and means formed on the hinges to prevent collapse of the. same when in an extended position.

2. An extension table including a stationary top, depending aprons secured to two of the oppositely disposed edges of the table top, a shelf member disposedbelow the top and forming a chamber therebetween, a plurality of movable members secured to the upper surface of the shelf member, a leaf movable with relation to the table top and having anedge adapted to register with the table top edge when the leaf is extended, hinges for thejleaf including a hinge memberrigidly secured to the under surface .of the leaf adjacent its abuting edge, a second hinge member rigidly secured to the upper `surface of the slide bar, a pair of hinge mem-V bers pivotall lsecured at their ends to the rst mentioned hinge members, whereby the leafmay be raised or lowered in a plane parallelv tothe movable members when itis desire-d to extend or chamber the leaf, and swinging closures for the open ends of the table chamber hingedly secured to the ion` shelf member below the table top. Y f

3. An extension table including a stationary tabletop having a walled chamber formed chamber being hinged totheA bottom Vwall of said chamber, a pair of slides mounted on n the bottom Wall of the chamber, said slides being in alignment With the hinged Walls of the chamber, an extension leaf hingedly connected to each slide, hinges for the leaves7 each of said hinges being pivotally secured to the leaf and to the slides, whereby When the slides are drawn outwardly the leaves may be raised to engage the table top edge and form an extension of said top.

4. An extension table including a stationary table top having a Walled chamber formed therebelow for the reception of 'a plurality of extension leaves When not in use, a pair of the oppositely disposed vertical Walls of said chamber being hingedly secured to the bottom Wall of said Chamber, a leaf movable with relation to the stationary table top and having an edge adapted to register with the table top edge when the leaf is drawn to eX- tended position, slide members secured to the bottom Wall of said chamber, said slides being disposed in alignment with the vertical hinged Walls of said chamber, hinges for the leaf including a pair of hinge members, one

Y end of said members being pivotally secured to the extension leaf and the other ends being pivoted to said slide members, said hinge members being arranged in parallel relation to each other.

In Witness that I claim the foregoing I have hereunto subscribed my name this 6th day of February, 1926.

DANIEL G. ANDERSON.

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