US179259A

US179259A - Improvement in fo

Info

Publication number: US179259A
Authority: US
Publication date: 1876-06-27
Anticipated expiration: 1893-06-27

Description

P. BORN.

FOLDING CHAIR.

No. 179,259, Patented June 27,1876,

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UNITED STATES.

PATEN FFIGE.

PETER BORN, OF NEW YORK, N. Y.

IMPROVEMENT IN FOLDING CHAIRS.

Specification forming part of Letters Patent No. 179,259, dated J une 27, 1876; application filed October 29, 1875.

To all whom it may concern Be it known that I, PETER BORN, of the city, county, and State of New York, have invented a new and useful Improvement in Folding Chairs, which improvement is fully set forth in the following specification, reference being had to the accompanying drawing, in which Figure 1 represents a longitudinal vertical section of my chair when the same is unfolded, ready for use. Fig. 2 is a sectional side view of the same when folded up. Fig. 3 is a longitudinal section of the arm-piece detached, and Fig. 4 a transverse section of the armpiece detached.

Similar letters indicate corresponding parts.

This invention relates to afolding chair in which the front and hind legs are connected by hinge-joints at their top ends, said jointed ends forming the guides for hollow arm-pieces, which are .hinged to the back, and each of which is provided with a groove to receive a stud projecting from the extension of one of the legs. In the hollow arm-pieces are situated gravitating-latches, which engage with said studs, and retain the back of the chair at the required inclination. The covering of the back of the chair is combined with a crossbar and with the hinged seat, and when the retaining devices are thrown out of gear the Weight of the person occupying the chair throws the back forward, anrl the inclination of the back can thus be adjusted with ease and facility.

In the drawing, the letter A designates the seat of my chair, which is connected by hinges a to a traverse, b, secured between the hind legs B. These hind legs are provided with extensions 0, which project upward, and are connected, by hinge-joints d, to extensions 6, projecting from the front legs 0, and these front legs connect, by links f, with the seat. When the seat is turned up on its hinges, therefore, the front legs are folded up against the hind legs; and when the seatis turned down to a horizontal position, the front legs are unfolded to the position shown in Fig. 1. In this position the frame of the seat rests upon a traverse, g, secured between the front legs.

The back D is connected to the seat A by pivots h, and the covering of said back is made in one piece with the covering of the seat. The seat and back are also provided with a lining, m, also made in one piece, and passed under a round or cross-bar, i, and attached on opposite sides of said round or crossbar to the covering by stitching or otherwise, so as to hold the covering in place as the chair is shifted to various positions. If a person sits down upon the seat, the downward press-- ure exerted on the seat produces a strain on the covering of the back, whereby said back is caused to swing forward.

To the side pieces of the back are hinged the armpieces E, which are open from below, and drop over the jointed ends of the front and hind legs. In each of the extensions 0 of the hind legs is secured a stud, j, which projects into a groove, 70, in the appropriate armpiece, (see Figs. 3 and 4,) so that when the seat is folded up against the back the armpieces are also folded, and the chair is brought in the position shown in'Fig.2; and when the seat is turned down, the arm-pieces turn down automatically, leaving the chair in the posit-ion shown in Fig. l.

The back of my chair is retained in the desired inclination by gravitating latches ff which are situated in the hollow arm-pieces E, and which are provided with notches l, to engage with the studs which project from the extension of the hind legs. When the chair is unfolded and the back is pressed back, the latches engage with the studs, and the back is held firmly at the required inclination. If the person occupying the chair desires to bring the back forward, all he or she has to do is to raise the latches clear of the studs, and by the strain on its covering the back is caused to turn forward until it is again arrested by allowing the latches to drop in gear with the studs.

This chair is very convenient in its operation, and it can be made in more or less expensive form, to suit the taste of the public.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a folding chair, the combination of the front and hind -legs,jointed at their upper ends, with the hinged seat A, hinged back D, and links f, constructed and operating sub stantially as shown and described.

2. In a folding chair, the combination of a traverse, i, the hinged back 1), hinged seat A, and the covering extending over said seat and back, and its lining m, all as shown and described.

3. In a folding chair, the combination of the hinged arm-pieces E, the hinged seat A and hinged back D, the front and hind legs, jointed