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Publication numberUS398943 A
Publication typeGrant
Publication dateMar 5, 1889
Publication numberUS 398943 A, US 398943A, US-A-398943, US398943 A, US398943A
InventorsJesse A. Crandall
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Jesse a
US 398943 A
Images(1)
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Description  (OCR text may contain errors)

(No Model.)

- J. A. GRANDALL.

v FOLDING CHAIR. v No. 398,943. Patented Mar. 5, 1889.

I WIZ'JESSES. [HEM T073.

- z waaM a i M M V Mae 7 JESSE A. (IRANDAIJII, ()F BROOKLYN,

NT (Enrica- NEW YORK, ASSIGNOR ll ONE-HALF "lO GEORGE A. III RD, OF SAME PllAt l l,

FOLDlNG CHAlR.

SPECIFICATION forming part of Letters Patent No. 398,943, dated March 5, 1889.

lie it". known that I, JEssn A. (RANDALL, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Folding Chairs; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thcreon, which form part of this specification, in which Figure l is a view of my improved chair opened. Fig. 2 is a view of the same closed. Fig. is a bottom plan view. Figs. 4 and 5 are details.

This invention is an improvement in tolding chairs. Its object is to improve the construction of such chairs, so that they will be not only equally as strong as the non-folding chairs, but may be closed in a smallerbundlo than ordinary folding chairs. My invention consists in the hereinattcr-deseribed construction and arrangement of parts.

Referring by letter to the drawings, A A designate the two similar rearlegs of the chair, which are preferably extended to form the back-supports thereof, and which are each provided, near their center, with an enlargement or fixed knob, a a, and at top with a similar knob, a a, which knobs maybe turned with the legs, if desired.

ll B are loose rings or sliding pieces on legs A A below knobs u (I, and I) h are similar sliding pieces between knobs (I and u.

designates a closing X-brace composed of two equal bars, 1' c, pivoted together at center, and connected, respectively, at their opposite ends to the knobs (H! and sliding pieces B B.

I) is a similar X-braee, the ends of which are connected to knobs a and pieces-b. IYh en legs A A are closed together, the Xbraoes are distended, and pieces I; Z) slide downward, as is evident, and when the legs are separated the X-braees are closed and the pieces slide upward.

E E are the front legs of the chair, having knobs e c at their upper ends, which may be turned therewith, and sliding pieces I I below these knobs.

.310?! file? October 3,1888.

Serial No. 287,072. (No model.)

G G are X-braces COHHQCIQG, respectively, to knobs e and u and F and I; at opposite sides of the chair, so when pieces B are raised or lowered, as described, the braces G G will be opened or closed, thus drawing legs E E toward or separating them from legs A A, the sliding pieces F F permitting this action of braces G G. H is a similar X-brace connecting legs E E, being attached to knobs e e and pieces F F, so when pieces F l are raised or lowered. by the opening or closing of braces G G, as described, the brace II is similarly opened or closed, its opening separating legs E E and its closing drawing them together. By this arrangement of sliding pieces and pivoted X-braces the chair can be opened or closed simply by pulling apart or pushing together legs A A, or any pair of the legs, as the movement of one braceis transmitted direct to all the others. The svstem oi braces keeps the legs at corresponding distances from each other, whether closed, or partially or wholly extendcd, and the size of the chair can be readily varied accm'ding to the extent of opening oi the braces. The seat l is preferably made of flexible material, so that it will told with the legs, and is attached at its corners to knobs tr e of the legs. The back .I is also of flexible mat crial and is attached to knobs u and o.

In some cases it is desirable to lock the chair when closed or extended, and to do this I make the pivot of one of the braces of a threaded bolt provided with a thumb-nut at II, so by tightening the nut I can bring the members of the brace together and prevent their movement; or, if desired, I can employ the strips L L, which are pivoted at one end to the ends of the members of the brace, and are hooked over retainingstuds In 7v: on the ends of the opposite members. It will thus appear that I have an ordinary-looking chair, which can be folded into a very small compass, and when folded it will occupyhardly on equarter of the space required when opened.

Having thus described my invention, I c1aim- 1. The combination of the front, and rear pair of legs, the sliding pieces thereon, and the X-braces thereof connected to said pieces at their lower ends, with the pair of side X-braces connected to the upper ends of the legs and to the sliding pieces, whereby all the braces are open ed or closed simultaneously, substantially as set forth.

2. The combination of the rearlegs extended to form the back-support, and the upper and lower X-braces connecting the same, having sliding connections with the legs at their lower ends, with thefront pair of legs, the X- brace connecting the same, and the side pairs of X-braces connecting the front and rear legs, the lower ends of the braces being connected to sliding pieces on the legs, substantially as specified.

The combination of the front and rear pairs of legs and the sliding pieces thereon, the X-braces connecting the same, attached to said sliding pieces at their lower ends, With the side X-braces connecting the front and rear pairs of legs, and connected at their lower ends to said sliding pieces, and the locking device for the braces, substantially as described.

4. The combination, in a folding chair, of the pieces forming the rear legs and backsupports, and having knobs at center and top, and sliding pieces below each knob, and the X-braces connected to said knobs and sliding pieces, With the front pair of legs having knobs at top and sliding pieces below the knobs, the X-brace connected to said knob and sliding pieces, and the side pair of X- braces connected to the fixed knobs and slid ing pieces of one front and one rear leg, and the flexible seat and back, all substantially as set forth.

In testimony thatl claim the foregoing as my OWnI affix my signature in presence of two witnesses.

JESSE A. (RANDALL \Vitnesses:

OTTE ROBINSON, NOAH TEBBETTs.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2702586 *Jun 1, 1951Feb 22, 1955Robert R BorgfeldtBody-supporting device
US2766813 *Nov 22, 1954Oct 16, 1956Reuben KayCollapsable chair
US3136272 *Mar 15, 1962Jun 9, 1964Murray LiffCollapsible stools and chairs
US4717201 *Jan 13, 1986Jan 5, 1988Barras Lee JFolding chair
US5897161 *Feb 12, 1998Apr 27, 1999Karg; Peter W.Two-directionally folding chair
US6082813 *Aug 25, 1999Jul 4, 2000Chen; Kao-SanFoldable chair
US6170907 *Aug 3, 1999Jan 9, 2001Ming-Liang TsaiCollapsible chair
US6435607 *Nov 30, 2000Aug 20, 2002Tsan-Chin LiuFolding massage chair structure
US6966084 *Apr 16, 2003Nov 22, 2005Kelsyus, LlcSupport and method of using the same
US7272865Nov 21, 2005Sep 25, 2007Kelsyus, LlcSupport and method of using the same
US7395561May 14, 2007Jul 8, 2008Kelsyus, LlcSupport device
US7571499Jun 26, 2008Aug 11, 2009Kelsyus, LlcSupport device
US7926129Jul 30, 2008Apr 19, 2011Swimways CorporationPortable hammock and hammock frame
US7967374Aug 20, 2009Jun 28, 2011Idea Nuova, Inc.Foldable chair
US8186367 *Jul 15, 2010May 29, 2012University Of South FloridaFoldable walker
US8214946Apr 12, 2011Jul 10, 2012Swimways CorporationPortable hammock and hammock frame
US8801090Aug 9, 2012Aug 12, 2014Idea Nuova, Inc.Foldable chair
US8806676May 10, 2010Aug 19, 2014Swimways CorporationPortable hammock and hammock frame
Classifications
Cooperative ClassificationA47C4/283