US150099A - Improvement in folding-chairs - Google Patents

Description

A. W. STEWART.

Folding-Chairs.

Patented Aprlu 21,1874.

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ED STATES PATENT OFFICE.

ALEXANDER W. STEWART, OF BOSTON, MASSACHUSETTS.

HMPROVEVENT IN FLINQCHAIRS.

Speci cation forming part of Letters Patent No. 150,099, dated April 21, 1874; application filed March 6, 1874.

To all whom it may concern:

Be it known that I, ALEXANDER W. STEW- ART, of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Folding-Chairs, and I do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention sufcient to enable those skilled in the art to practice it.

The invention has particular reference to the combination of rigid arms with a folding chair.

In my construction I pivot the rear ends of the arms tothe back-frame, and hinge to each a prop, pivoted at its foot to a projection from the adjacent baclcleg, the prop being preferably connected to the back-frame by a pin passing through a slot in the prop and into the frame.

The invention consists primarily in combining with the folding leg and back frame and seat the rigid and folding arms, sustained by props hinged under the arms, and pivoted to the rear legs, or`to a rung or projection eX- tending from said legs. i

The drawing represents a construction embodying the invention.

Figure l lshows the chair in front view. Fig. 2 is a side elevation of it. Fig. 3 is a side view, showing the parts folded.

a b denote the front legs extended up above the seat to form the side pieces c d ofthe backframe, and to support the bar e, upon which the rear part ofthe seat f rests. g h denote the rear legs extended up above the pivots t', to support the cross-bar k, to which the seat is pivoted. Z m denote the two rigid arms pivoted, respectively, to the two bars c el, as seen at a. o p denote the two props that support said arms, each prop being hingedY under the arm at or near the center ofthe same, and thence extending down and being pivoted at its foot to the end of a cross-bar, q, fixed to the rear legs g, and extending beyond said legs.

Each prop is preferably curved, as seen in Figs. 2 and 3, and has a slot, s, through which extends a pin, b, that enters the adjacent back-bar, each pin having a head, by which the prop and arm are supported against out- I ward lateral movement.

The construction gives a very rm, strong, and reliable arm-support, and the props are simple and not unornamental.

I claim- I. In combination with the crossing and folding back and leg frames, and with the seat, the arms supported upon the props 0 p, the props being hinged under the armsand pivoted to the rear legs, substantially as shown and described.

2. In combination with the arm Z, leg a, and prop o, provided with the slots, the guide-pin t, as and for the purpose specified.

ALEXR. W. STEWART.

Witnesses FRANCIS GoULn, M. W. FROTHINGHAM.

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