US443504A

US443504A - Chair

Info

Publication number: US443504A
Authority: US
Publication date: 1890-12-30
Anticipated expiration: 1907-12-30

Description

(No Model.) 2 Sh eets Sheet 1. U. H. D'E PREHN.

CHAIR.

No. 443,504. Patented Dec. 30, 1890.

(No Model.) 2 Sheets-Sheet 2.

0. H. DE FREHNJ CHAIR.

No. 443,504. I Patented Dec. 30, 1890.

UNITED STATES PATENT OFFICE.

CHARLES HENRY DE FREHN, OF WILLIAMSPORT, MARYLAND.

CHAIR.

SPECIFICATION forming part of Letters Patent No. 443,504, dated December 30, 1890.

Application filed July 16,1889. Serial No. 317,685. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES HENRY DE FREHN, of IVilliamsport, in the county of Washington and State of Maryland, have invented certain new and useful Improvements in Chairs; and I do hereby declare the follow ing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in chairs; and it consists in the construction, which will be fully described hereinafter, and pointed out in the claims.

The object of my invention is to construct the back and seat of a chair of continuous elastic strips, which are connected only at their ends to the top and bottom cross-bars of the seat and back frame, so that they have an independent up-and-down, back-and-forth, and lateral movements, whereby they conform to the shape of the person sitting in the chair, and which produces a very comfortable seat.

Figure l is a perspective of a chair embodying my invention. Fig. 2 is a vertical section. Fig. 3 is a front view.

A represents the side supporting baseframes, to which the continuous curved supporting-bars D of the seat and back frame are secured in any suitable manner. The lower ends of these bars extend slightly beyond the front edge of the chair-frame A, as shown, and connected to these extending ends is a crossbar G. Connected to the upper ends of the bars D is a supporting cross-bar B, to which i nected only at their ends, are allowed an independent up-and-down and lateral move ment at their curved portions, as shown in Figs. 2 and 3, and also a back-and-forth and lateral movement from their upper ends to their curved portions. These movements of the elastic strips allow them to conform to the shape of the person sitting in the chair, making it very comfortable, and which give and form a yielding support as the person rocks.

IVhile I here show my invention applied to a rocking-chair, I do not limit myself to this application, for it will be readily understood that it can be applied to chair-frames of various forms.

Having thus described my invention, I claim 1. A seat and back frame composed of continuous curved side bars, bent as shown and connected at the top and bottom by crossbars, and the con tinuous elastic strips curved to substantially correspond to the curve of the side bars and connected at the top and bottom to the said cross-bars and having no intermediate connections between these points, the whole composing a combined seat and back frame capable of application to chairs of various forms, substantially as shown and described.

2. Aseat and back frame composed of supporting side bars, top and front cross supporting-bars, and intermediate longitudinal continuous elastic strips curved to form a back and seat, having their upper and lower ends connected, respectively, to the said cross-bars and having no intermediate connections between these points, whereby a back and seat are formed of elastic strips having the independent movements set forth, for the purpose specified.

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

CHARLES HENRY DE FREHN.

Witnesses:

WILLIAM DE FREHN, JAMES E. HAVVKEN.