US272721A

US272721A - Immanuel loeenzen

Info

Publication number: US272721A
Authority: US
Publication date: 1883-02-20
Anticipated expiration: 1900-02-20

Description

(No Model.)

I. LORENZEN.

DEVICE FOR STRBTGHING BED BOTTOM S. No. 272,721. Patented Feb. 20,1883.

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0 f, through which the bolt also passes.

UNITE STATES PATENT OFFIQE.

IMMANUEL LORENZEN, OF HARTFORD, CONNECTICUT, ASSIGNOB. TO THE PEERLESS WIRE MATTRESS COMPANY, OF SAME PLACE.

DEVICE FOR STRETCHING BED=BOTTOMS.'

SPECIFICATION forming part of Letters Patent No. 272,721, dated February 20, 1853,

Application filed November 1, 1882. (No model.)

To all whom it may concern Be it known that I, IMMANUEL LORENZEN, ofHartford, in the countv of Hartford and State of Connecticut, have invented certain new and useful Improvements in Devices for Stretching Bed Bottoms, of which the following is a description, reference being had to the accompanying drawings, where- Figure l is a top view of a portion of the side and end rails of a bedstead-frame secured by myimproved iron. Fig. 2 is aview of same in vertical section on plane denoted by line 00 a: of Fig. 1.

My invention relates to the class of cornerirons used on bedstead or mattress frames adapted for a mattress of woven wire or similar fabric; and it consists in the peculiar device for supporting and adjusting the end rails of thet'rame at the corners, as hereinafter more fully described.

In the arcom panying drawings, the letter a denotes a plate of cast metal, preferably iron, having the lateral flanges 1), against which the end of the side rail, 0, abuts, and the flange d. which has a flat base, (2, resting upon the upper side of the side rail. These flanges are perforated in a line parallel to the side rail for the passage of the bolt e, which bears the not 9, usually socketed in the side of the end rail Upon the inner side of the plate there is an inwardly-projecting web, 71, arranged parallel to the upper face of the side rail, and forming a seat or rest upon which the end of the end rail slides. The parts are assembled as shown, and the fabric, which is secured in the usual manner to the edgecof theend rail, is stretched or loosened by turning the bolt 0, as by means of a wrench applied to its head. All downward pressure upon the end rail is borne by the bolt resting in the hearings in the flanges and the web h below the end of the rail, and the web and bolt thus placed keep the end rails in a plane parallel to the side rails.

In some frames the end rails are fitted to sockets in the corner-irons; but this is afa-ulty method, as the shrinking of the wood allows the rails to become loose and to turn in the socket under the tension of the fabric, slackening it. In my device the rail is securely held by the bolt against rotation, and this serves to preserve a uniform tension after the bed is setup, and this tension may at anytime be increased by the means and method above described. i

I claim as my invention- 1. A corner-iron having the lateral flanges perforated as a bearing for a bolt supporting an end rail, all substantially as described.

2. In combinatiomin a mattress-frame, acorner-iron, a, having perforated flanges b (1, bolt e, out 9, end rails,f, and side rails, c, all substantially as described.

3. In combination, in a mattress-frame, a corner-iron, (1., having perforated flanges b (1, web h, bolt 6, nut g, end rails,f, and side rails, c, all substantially as described.

IMMANUEL LORENZEN.

\Vitnesses C. L. BURDETT, W. H. MARSH.