US1205135A - Spring-mattress. - Google Patents

Description

E. L, FARHOW 61 H. GOODMAN.

SPRING MATTRESS.

APPLICATION FILED 111111.11. 1912.

Patented Nov 14, 1911.

2 :HIzETS-SHEET 2.

SPRING-MATTRESS.

Specieation of Letters Patent.

Patented Nov. Ml, 11916.

Application led March 11, 1912. Serial No. 688,050.

v is a perspective view of our new and improved mattress, and Fig. 2, is an enlarged sectional 'elevation of a portion of the mattress. Fig. 3 is. a plan view of a portion of lthe spring wire interior portion or frame of f 'the mattress and a section of the cushioning border at the left.

The mattress as thus shown is purposely built to have the size and appearance of the usual hair mattress, so-called, the size and shape being about the same as such a mattress and also as light in weight and easily handled and reversible like a tufted hair mattress, but still giving a spring wire foundation in its middle. In fact the invention lies in a construction which makes such a build of mattress possible and which, in the present case, comprises upper and lower orA side meshes of wire built up with straight strips or pieces of wire 2 and 3 interwoven at right angles to each other and more or Aless bent at their crossings or angles and spaced apart at intervals of about an inch and a half or two inches so as to give the fabric or mesh all needed strength and yet keep it as light as possible. Practically the said meshes or sheets of wire fabric constitute the immediate foundation both for the covering on the outside and for the spiral springs 5 on the inside which come `between said sheets and are interwoven at their respective ends withr the said cross wires 2 and 3. In respect to arrangement, each spring centers axially and has its bearing' over the intersection. or crossing of twvo of said wires 2 and '3 whilev its coilis interwoven or run in with two side wires in each of the series of wires 2 and 3', thus giving said springs wide and uniform bearings at each end. This makes a" wire embodiment or' framework of all spring material which infact is a complete article 0f manufacture in itself and usually is made in a factory devoted to such manufacture while the upholstering or padding work outside is generally done at least in another department if not in a different factory and by an entirely different set of workmen. However, there is also this peculiarity in the said wire embodiment or frame that, after all, it is incomplete and not in the shape or condition in which it is used because the springs 5 are not under tension. This is true because there is no wire or other means binding said sides together between the sides of the mattress to which the springs are attached, except to give such tension and the only connection between said sides is the springs 5. -Hence in order to render thesaid frame really available in the bed we require means to compress the sides of the frame within the compass and shape substantially as shown in Figs. 1 and 2, and in which the springs especially are compressed to their sustaining tension.

It will be noticed in Fig. 2 that there is only a perceptible difference in the elevation between the springs in the middle portion of the mattress and the edge at the left, but this difference also has its plan and advantage because persons will sit on the edge of the mattress and it requires sustaining strength at this point not really demanded in the body of the bed, as is obvious. Hence the edge springs are and should be under greater tension than the interior springs and are held in this way by a suitably heavy cover or inclosure 6. This cover is of strong woven fabric and designed to completely envelop the wire frame or structure and to be stretched over the same in such way that it will press the two sides of the mattressl together and compress all the springs more or less evenly, and in any event act upon the springs in such way as to give the mattress the proportions seen in Fig. 1. This of course involves a cover of a suitable shape and size havingside and end edges 7 that are comparatively narrow, say relativelyv as seen in Fig; 2 and as may be deducted from the edges of the mattress seen in Fig. 1, making allowance for the padding on both sides and the rolls or beads along said edges. Tobe more defii'iite,A these straight edge portions 7 in a full-sized" mattress are only about ve inches deep including padding, and the border springs, when compressed, are only abeut three lio-v inches. The said cover or inclosure 6 is of course stretched .over the said wire frame and serves to compress all the springs to the using tension. The complete effect however, is about as illustrated in Figs. 1 and 2, with substantially flat sides, plus the increased depth by padding or upholstering over the body of the mattress as shown. Thus it will be seen that the top and bottom cross wires of the 'spring extend beyond the edge or more expensive mattress, the all-hair mat- A tress of course being regarded as probably of the best grade and of the highest price. For our present purposes any suitable-upholstering sutices, because the invention lies more particularly in the new and original spring wire base or frame and in the combination therewith of a compressing and shaping inclosure or envelop of a suitable woven fabric which will also give outline to the mattress and provide a foundation for the padding as shown and described.

The net value of the invention is a mattress which is the equivalent of an all-hair mattress but with a wire spring foundation which enables a' cheaper and more resilient mattress 'to be made than one that is all hair or that is part hair and other padding and which is exceptionally comfortable tooccupy. f

The rolls or beads b confine the edge wires 10, which are of the same gage and as light and springy as the wires 2 and 3,- and therefore need this renforcin roll or bead, and the advantage to be gained thereby is a springy-like edge to the mattress whichwill flex under weight and come back to straight lines again, thus preserving the shape of the mattress for a much longer period than if relatively heavy border wires substituted light Wires 10. The rolls or beads b and border Wires 10 are fastened together at intervals by cords 12 or other suitable means.

A further feature of this bed mattress is embodied in the air controlling and ventilating tubes 11 extending at intervals through the sides. The springs naturally expand the mattress to fixed limits and the air tubes not only ventilate the interior but admit air slowly to permit full and complete expansion.

When the mattress is rst occupied the air is in part slowly expelled, but in the meantime the air within acts as a cushion to supplement the action of the springs. Tubes 11 are provided with minute air passages 14 preferably located at the outer. end of the central bore 15, thus restricting the passage of air in ine degree and excluding vermin, or other objectionable matter from entering the larger bore 15.

What we claim is:

A spring mattress comprising spiral wire springs arrangedqin series and a plurality of cross wires top and bottom threaded at right angles through the same and extending beyondfthe edges of said springs, in combination with a woven fabric cover stretched tightly about said springs and wire structure and restraining the top and bottom cross wires in converging relations at the edges'of the mattress tonormally retain the edge springs under greater compression than the interior springs. Y

In testimony whereof we affix our signatures in presence of two witnesses.

ERNEST L. FARROW. HARRY GOODMAN.

Witnesses:

R. B. Mostre, E. M. FISHER.

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