US450968A - Spring bed-bottom - Google Patents

Description

(No Model.) 2 sheets-'sheen 1. W. T. HOWE. SPRING BED BOTTOM. No. 450,968. `Patented Apr. 21, 1891.

UNITED STATES PATENT OFFICE.

TILIIIAM T. IIOVE, OF KENOSIIA, VISCONSIN.

SPRING BE D-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 450,968, dated April 21, 1891.

Application iiled November l2, 1884. Serial No. 147,696. (No model.)

To all whom t may concern.-

Be it known that I, WILLIAM T. llowE, of Kenosha, in the county of Kenosha, and in the State of Iisconsiln have invented certain new and useful Improvements in Springv Bed-Bottoms; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to improvements in spring bed-bottoms, and will be fully described hereinafter.-

In the drawings, Figure l is an under side plan view of a spring bed-bottom embodying my invention. Fig. 2 is a vertical longitudinal section through the center of the same, and Figs. 3,4, and 5 are details.

A A indicate the sides of the bed-bottom frame, to the end bars a a of which arefastened, in the usual manner, the woven spring wire-cloth B.

O C O are transverse bars, in the upper faces of which are mounted the spiral springs C C C,the upper ends of which rest against the under side of the cloth B. The trans; verse bars C are held in position by means of the coiled spring-cords D D, which, together with the adjustable turn-buckle rods E and the transverse rod F, form the supports of the spiral springs C C. The spring-cords D are formed by ceiling together a certain number of wires, as shown in Figs. 4 and 5. One end of each cord is fastened to the framebar a', while its opposite end, after being passed through the perforation f of the transverse rod F, is returned through the perforation f of the same to be fastened by the side of the first end at a slight distance from it equal to the distance between the perforations f and f. The portion of the cord between the said perforations is received in a groove f2, cut, as shown, in the outer edge of the rod F. The turn-buckle bolts E are connected at suitable points of the rod F and at corresponding points of the frame bar a. The transverse bars C C are suitably slotted in their under edges, as at c o o, to receive the spring-cords D D. The upper ends of the spiral springs C C are also fastened in any suitable manner to the woven cloth B, so as to keep them from slipping to one side or the other.

When it becomes necessary to stretch the woven cloth I3, the turning of the turnbuckles c e in the direction desired will, by shortening the spring-cords D, raise the transverse bars C O with their springs against the cloth, and will thus give to this latterthe necessary tension.

I am aware that transverse rods carrying springs have heretofore been used to support the woven cloth; but these bars have been simply connected in a rigid Inanner to the frame. I do not therefore claim, broadly, the stiifening-springs supported against the woven cloth by bars set transversely to the frame; but, so far as I am aware, I am the first to use a spring-bridge formed, as described above, to support the said stiffeningsprings. I may also use in place of these wire spring-cords any other metallic cords or even ropes, made either of hemp or of any other suitable material, without departing from the spirit of my invention.

I am aware that I am not the iirst to construct a bed-bottom combining a main frame covered with a woven-wire mattress and a series of spiral springs located beneath said mattress on transverse slats whose ends are free from the sides of the main frame, and which slats are supported on a series of rods, wires, cables, or cords adj ustably fastened to the end bars of the main frame, and hence I do not broadly claim such a construction; but I believe that I am the first to support movable transverse bars on aseries of springwire coiled cords, substantially suoli as I have shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a spring bed-bottom, the combination, with the main frame and a woven-wire Inattress secured thereto, of a transverse loose rod intermediate between the end bars of the main frame and grooved and perforated for the reception of a series of spring-wire coiled cords, a series of said cords, each cord being doubled and passed through the grooves and perforations described in the transverse loose rod and with the endsof each cord secured to one of the end bars of the main frame, transverse movable bars supported on the said series of IOO cords, Spiral springs supported on the said have hereunto Set my hand, at Milwaukee, in bars between their upper surfaces and the the county 0E Milwaukee and State of Visunder side of the Woven-wire mattress, and a cousin, in the presence of two Witnesses.

seriesof adjustable rods connecting the trans- Y WILLAM T. HOW E. i 5 verse loose rod with Jche mainframe, sub- Vitnesses:

stantially as set forth. S. S. STOUT,

In testimony that I claim the foregoing I H. G. UNDERWOOD.

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