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Publication numberUS854298 A
Publication typeGrant
Publication dateMay 21, 1907
Filing dateNov 30, 1906
Priority dateNov 30, 1906
Publication numberUS 854298 A, US 854298A, US-A-854298, US854298 A, US854298A
InventorsRobert Matthews
Original AssigneeRobert Matthews
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 854298 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATBNTED MAY 21, 19o?.



UNITED' 'sluirns .PA'rnNT OFFICE.

ROBERT MAiTnws, orsEAT'rLE. wAsniNGToN.


Specication of Letters Patent.

:Pstentedmy 21, 1907.

Application vfiled November 30, 1906. Serial No. 346,7 38.

To a/ZZ whom it may concern:

Be it known-that I, ROBERT MATTHEWS, a citizen or' the United States, residing at Seattle, in the county of King and State of "-Washingtoinhave' invented certain new and usef'ullmprovements in Chairs, of which the yfollowing is a s ecification, reference being had therein. to t ie accompanying drawings.

f RM-y invention relates to chairs havin a 'tableflike support for conveniently holding `various objects' and 'which are peculiarly "adapted ier usein lunch rooms,libraries and the like; and its -objectis to provide a chair -l n of this characterwhich will permit of much having the table-leaf thereon readi able to various desired horizontal positlons.; To these ends the invention consists in the freedom of movementto the occupant, a11d yadJuStnovel construction and combination of parts as will be hereinafter described and shown in Athe said drawings, in which- -Figure l` is a side elevation of a chair embod'yin .myinventiom the back being shown "partly l2 5.

under-siderview ofthe leaf-arm With P01" zbroken away g Fig. 2, a plan view of the same, 'similarly broken away; Fig. 3, an

tions of the chair sup ort and brace; and Fig. 4, a cross sectiona View taken-through 4--4 in Fig. 2, drawn to an enlarged scale.

, yThe reference numeral 5 designates the seat of a cli-air, 6 the legs, having connecting rounds such as' 7., and Sthe standards made by prolonging the rear legs upwardly and which with the connecting bars 9 form the back thereof.

Rigidly connected toyone oi the standards, desirably that to the left hand side of a person occupying the chain is a horizontal arm 10 which is also supported upon the upper end of an inclined brace l1. This brace is secured to the adjacent rear leg and also to the frame of the seat and disposed to be at some distance from the iront edge of the seat to allow the occupant putting .his leg tlierebelow should he so desire. Rotatably mounted. upon said support is a leaf l2 with itsI pivotal connection disposed `adjacent of one of its corners to allow ofits being swung horizontally above a sitters lap upon occasionor to the sidewhen not in use.

Secured to the underside of the leaf is a f flanged socket 13 and another like fixture 14.- l is attached to the bottom of the arm with 'its boss 14 extending into an aperture LO of the arm. These two sockets are screw .threaded internally tov receivel the threads provided upon the ends of a 'tubular member 15 and the threads are iii/this both right^han'dsuch that when Vrthe leaf is swung over theA front of the chair the ends of the member 15 will be caused to further enter one or both of the sockets and accordingly draw the lear` into closer relation with the arm, or vice versa, when theleaf is swung outwardly. Interposed between the" two sockets is an extensible helical s ring 16- adapted to take up any loosenessw ch mayeventuate by the wearing of the screws and likewise exerting a constant pressure upon the leaf preventing, the latter being swung eXce t throughl the application of anappre# toV ciab e amount of force. Fixedly secure the underside of said leaf, as by screws, are

two ormore metal attachments 19 each of which has an oil-set'end 19 to Iembrace a metal bearing-track 20 upon the arm por- 'tion '10. Said bearing-track is 'fixedly connected to said arm, as 'by screws 21and the portion which coacts with the attachments 19 is made concentric to the axis of leaf pivot 15. y 22 is a pin projecting from the underside of the leaf for the purpose of limiting the rotary travel of the leaf by interceptlng with the arm portion 10. .t Upon one of the bars or slats 9 ofthe chairback and at ornear the level of the arm 1l) I provide an elbow rest 23 formed desirably of wood or material corresponding to the design of the chair and made somewhat wider than the thickness of the slat.

From the foregoing it is obvious' that thev loo the arni .such connection being adapted to shorten gthe distance between the arm and the leaf when'the latter is-swung in one dlrection and to increase such distance when swung oppositely, and a spring interposed between said arm and leaf.


2. ,A chair an arm with atrack-l' bearin for a superposed leaf, said leaf, and pivota connections between said arm and the leaf .adapted to shorten when moved in one direction said connections consisting of a tubular member provided with screw-threadone direction said connections consisting of a tubular member provided with screw-threaded ends which register with sockets respectively secured to said arm and saidleaf.

4. In a chair having a single arm, Vprovided with a track-bearing for a superposed leaf,

and said leaf, incombination with a pivotal connection between said arm and saidleaf whereby the latter can be rotated into-various positions, and a spring acting to pressi apart the leaf and arm.

' 5. In a chair, the combination of an arm provided with a track-bearing for asuperposed leaf, said leaf, andpivotal' connections between said arm and said leaf and consisting of a tubular member provided with screw-threaded ends which register with sockets respectively secured to said arm and to said' leaf, and4 an interposed spring tending to separate said leaf from said arm.

6. n combination with the arm of a chair.'

and a leaf, of thepivotal connection between said arm and leaf, comprising flanged sockets provided with internal screw-threads respectively secured to said parts, anda tubular member-having screw-threaded ends which respectively enga e with said-sockets.

In testimony w ereof I affix my signature in presence of two witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2566113 *Jun 28, 1950Aug 28, 1951John BaylessChair arm
US2587098 *Mar 12, 1946Feb 26, 1952Binz Gustave HarderBooth wall mounted movable table top
US3216764 *Nov 13, 1963Nov 9, 1965Bela Seating Company IncTablet armchair
US3216765 *Nov 2, 1964Nov 9, 1965Bela Seating Company IncTablet armchair
US4591206 *Sep 4, 1984May 27, 1986Pribble Elvern GTable attachment for chairs
US5816649 *Nov 14, 1996Oct 6, 1998Steelcase Inc.Chair with articulating tablet and interfacing table
US5931528 *Jul 29, 1998Aug 3, 1999Steelcase Inc.Chair with articulating tablet and interfacing table
US6017085 *Oct 14, 1997Jan 25, 2000Lacroix; Tamara D.Folding chair tray
International ClassificationA47C7/68
Cooperative ClassificationA47C7/68
European ClassificationA47C7/68