US315546A

US315546A - Bed-spring

Info

Publication number: US315546A
Authority: US
Publication date: 1885-04-14
Anticipated expiration: 1902-04-14

Description

(No ModeL) L. M. PROWSE.

BED SPRING. No. 315,546. Patented Apr. 14, 1885.

INVENTOR.

mw wl/QM ATTORNEYS UNITED STATES PATENT -OFFICE.

LEANDER M. BROWSE, OF SILOAM SPRINGS, ARKANSAS.

BED-SPRING.

SPECIFICATION forming part of Letters Patent No. 315,546, dated April 14-, 1885.

Application filed May 5, 1884. (N0 model.)

To all whom it may concern:

Be it known that 1', LEANDER M. Pnowsa, a citizen of the United States of America, residing at Siloam Springs, in the county of Benton and State of Arkansas, have invented certain new and usefullmprovements in Bed- Springs, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to bed bottoms or portable spring-bed frames.

The construction and arrangement of the device will be hereinafter more fully set forth in the specification and pointed out in the accompanying drawings, in which- Figure 1 is a plan View of one section or portion of the bed'frame with the springs attached, and Fig. 2 is a detail view of the interwoven tension-springs.

Referring more particularly to the drawings, AArepresent the coiled springs, secured to the frame-pieces B B. These coiled or spiral springs are united by the lateral spring portions a, thus practically making these spiral springs one integral or common spring. Any strain taken up by one of the spirals A A is immediately communicated to the other through the intervention of the uniting part a. These spirals are further united to each other and to the opposite ones on the frame by the spirally-coiled springs G C.

It will be observed that the springs C 0 have their ends interwoven over a portion of each of the spirals A A, the central part at 0 being interwoven again with each other, the ends of the frame having also the springs E, similar to C G, stretched between and interwoven with the spirals A.

What is shown in plan view Fig. 1 repre sents a portion or section of the bed-frame, and it is of course well understood that there may be any suitable number of said sections. In each case thesprings G Oare interwoven and extended across from spiral to spiral,as shown.

The object sought for and the advantages secured by this form of construction are as follows: The spirals A A and their connections act to take up a direct vertical strain and neutralized by the springs C O, which are f joined to the springs A A at a point about centrally of said springs and the frame-pieces B, and are continuous throughout the length of the frame. If this were not the case, the spirals A A and their connections would be gradually compressed out of form and become bent and useless for the purpose required. Heretoi'ore, in order to get a good bearing for the mattress and prevent the springs from becoming bent, it has been necessary to use a large number of springs joined to each other in various ways. I accomplish this object in a cheap and effectual way by the use of few springs joined as described.

Having thus described my invention, what I claim is- In a bed-bottom, the combination, with the frame, of the spiral springs A A, made integral by means of thejoining spring portions a, and the intermediate curved springs, QC,

extending in an unbroken line across the bedbottom, and interwoven at their central point between the spirals A A, and interlacing with them at a point central of the spirals and frame-pieces B, whereby the vertical and tensile strains are uniformly taken up and distributed, substantially in the manner and for the purpose set forth.

In testimony whereof I affix my signature, in presence of two witnesses, this 26th day of December, A. D. 1883.

LEANDER M. PRO'WSE.

mark.

WVitnesses:

A. J. EGY, I. 0. SMITH.