US488378A

US488378A - Woven-wire mattress

Info

Publication number: US488378A
Authority: US
Publication date: 1892-12-20
Anticipated expiration: 1909-12-20

Description

(No Model.)

A. BELL. WOVEN WIRE MATTRESS.

No. 488,378. Patented Dec. 20,1892.

WITNESSES? INVENTDR AMT truce.

ALONZO BELL, OF PHILADELPHIA, PENNSYLVANIA.

OVEN-WIRE MATTRESS.

SPECIFICATION forming part of Letters Patent No. 488,378, dated December 20, 1892.

.Lpplication filed July 26, 1892. Serial No. 141,266. (No model.)

To all whom it may concern:

Be it known that I, ALoNzo BELL, a citizen of the United States, and a resident of the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in WVoven-WVire Mattresses, of which the following is a specification.

My invention relates to improvements in woven wire mattresses and the object of my invention is to furnish a device by means of which the woven wire surface of a mattress may be prevented from sagging down after it has been for some time in use.

WVoven wire mattresses, as ordinarily constructed, consist of a top made of a sheet of woven wire, the edges of which are surrounded and attached to a metal frame, usually a stout piece of iron or steel wire, and a bottom of wooden or metallic slats to which are attached the lower ends of helical springs, the upper ends of which areincorporated with or bear against the sheet of woven wire. Sometimes the bottom, instead of being formed of slats, is made of woven wire and is similar to the top; in this case the springs bear against both the bottom and top sheets of wire. All mattresses of this kind, after having been in use a short time, become sagged down in the middle which impairs both their looks and usefulness. My device for preventing this sagging of the mattress consists of a steel spring or springs, the lower end or ends of which are secured to the lower part or bottom of the mattress, and the upper end or bight of which bears against a strip of metal, the ends of which are secured to the frame of the woven wire and which passes across the mattress from one side to the other beneath the surface of the woven wire.

In the accompanying drawings, forming part of this specification, and in which similar letters of reference indicate similar parts throughout the several views:Figure 1, is a plan of part of a woven wire mattress furnished with my improvement; Fig. 2, a sectional view on line l2-Fig. 1; Fig. 3, a plan of spring, Fig. 2; Figs.& and 5,sectional views on line 12Fig. 1, showing modifications of my invention, the helical springs being omitted and Fig. 6, a sectional view of a mattress, both the top and bottom of which are composed of woven wire, the helical springs being omitted.

A. is the sheet of woven wire, B. the metallic frame surrounding the sheet A. 0., bottom, composed of wood or metal slats D. E., helical springs. F. strip of metal extending across the mattress and below the sheet of woven wire A., and the ends of which are secured to the frame B. G., spring, secured to bottom 0. and to metal strip F.

The spring G. may have any convenient or suitable form. In Fig. 1 it is circular or elliptic in shape; its ends are furnished with slots a, as shown in Fig. 3, and these ends are secured by bolts or rive s to the bottom 0. The central part of the spring is secured by rivets, or otherwise, to the strip F. The slots ct allow the spring G. to be expanded when the weight of the body is upon the mattress.

In Fig. 4:,the spring G. has one end secured to the bottom 0. and the other to the strip F. In Fig. 5 the spring has a Z shape.

In Fi 6 a Z shaped spring is shown applied to a mattress, both the top and bottom of which consist of woven wire.

The springs G. act to keep the strips F. horizontal and these strips, having their ends secured to the frame B. of the mattress A. always, where there is no weight upon the mattress, keep the sides of the mattress apart and thus insure its keeping flat.

Having thus described my invention, I claim The combination in a mattress of a sheet of woven wire, a frame to which the edges of said sheet of woven wire are secured, a strip or strips of metal, the ends of which are secured to the lower part of the said frame at some distance below the woven Wire and which extend transversely from one side of said frame to the other and beneath said sheet of woven wire, abottom constructed of transverse and longitudinal slats, helical springs secured to said bottom and to said sheet of woven wire and springs secured to said bottom and to the center of said transverse strips of metal carried by the frame of the woven wire.

GEORGE W. SELTZER, CHAS. A. BUTTER.