US1835212A - Reversible spring center mattress - Google Patents

Description

Dec. 8, 1931. DEL ROY4 F. FowLER 1,835,212

REVERSIBLE SPRING. CENTER MATTRESS I Filed Janv. 28, 1930 C /E A IFAPT @sgi h ff f Patented Dec. 8, 1931 DEL ROY F. FOWLER, F MELROSE PARK, PENNSYLVANIA REVERSIBLE SPRING CENTER MATTRESS Application led January 28, 1930. Serial No. 423,919.

My. invention relates to mattresses of the type known as reversible spring center mattresses. Mattresses of this kind are made up of a multiplicity of coiled springs spaced and r secured together to form the inner element of a mattress, pads applied to the upper and lower surfaces of the spring element and an outer covering of fabric. Quite generally vlayers of fabric are interposed between the 1Q spring element and thepads. Sometimes this fabric layer is attached to the pad as by stitching. Prior to my invention the pads employed were largely made up of cott'on batting in which the cotton fibres are loosely '15j felted together and whether a layer of fabric was used between such pads and the spring element or not the cotton bats had a marked tendency to become more or less disrupted and lumpy so that portions of the pads pro,"

'20 jected down through the center of the springs leaving of course corresponding ine ualities on the upper and lower surfaces.; w en this occurred the mattress became uncomfortable both by reason of the inequalities in the padding and because the edges of the springs could be felt by the users. The object of my invention is to provide a mattress of th: general type described which shall be free from the defects noted and also of cheap construction and I accomplish this by applying to the top and bottom surfaces of the spring element pads made up of long and wavy sisal fibre carded into thin sheets or veils, which veils are so disposed upon each other that the fibres of superposed veils cross each other at an angle. These pads are placed upon the spring elements in such manner that the sisal fibre comes indirect conta-ct with the spring elementwithout an intervening layer of fabric either attached to the pads or to the spring element or placed loosely between the same. On the outer facesof the sisal pads I apply layers or pads of cotton or like material which may or may not be sewed to the sisal pads and the mattress is completed by a fabric cover in the 'usual manner. 1n the structure formed as describedthe layers of sisal fibre are in :no wise felt'ed together and consequently the fibres cani move upon each other with great freedom. I have found that the sisal fibres in direct contact with the spring elements have a certain freedom of movement over the spring element and thatI the sisal pads have but little tendency -to become embedded in the springs and retain their form and elasticity after very protracted use. I have also found that the greater part of the movement occurring in 4the sisal pads occurs in the center of the pad so that the outer layer has but little tendency to move with respect t'o the cotton layer superimposed upn it. This avoids any tendency to disrupt the cotton bat and cause it to become lumpy.

In consequence of the comparative freedom of the sisal pads to become deformed in use it is practical to use comparatively thin layers of cotton batting and to use cotton batting I made up of shorter fibres than have heretofore been considered` necessary. Reference being had to the drawings, which illustrate a mattress constructed in accordance with my invention,

Figure 1 is a cross sectional view of a mattress embodying my novel construction.

Figure 2 a plan view of a portion of such a mattress with the upper padding and cover layers partly -laid back to show the mode of construction.

Figure 3 is a detail, practically an enlargement, of a portion of the showing in Fig. 2 showing the disposition of the sisal fibre component of the sisal pads with respect to the spring element.

Figure 4 is a view showing a mode of forming the sisal pads with overlaying thin veils of carded sisal fibre so disposed that the fibres will cross each other in adjacent veils, and

Figure 5 is a sectional view of a portion of a sisal pad.

A indicates the framing formingthe top and bottom elements to which the springs indicated at B are attached so as to properly space the springs. C indicates the sisal pad made up of overlapping veils C1 and C2, as indicated in Fig. 4, and lying upon the spring element with its fibres in direct contact with the spring elements without any intervening fabric.y It is usual in the construction of such sisal pads to secure the overlaying layers together by lines of stitching, as indicated at D, Din Fig. 5. E is a layer of cotton batting placed upon the sisal pads and is indicated stitched to the sisal pads as by lines of 5 stitching D1, and F is the outer cover of the mattress by which all of its componentl parts are held securely together.

Having now describedl my invention, what I claim as new and desire to secure by Letters Patent, is:

A reversible inner spring mattress consistin of a spring element made up of a multipllcity of coiled springs spaced and secured together in combination with pads of sisal fibre formed of a multiplicity of thin veils of carded sisal disposed upon each other in such manner that the fibres of superposed veils will cross each other, said veils of each pad being held together by stitching, 'and said pads being in direct contact with the top and bottom of the spring center 'without intervening layers of fabric, layers of cotton batting applied to the outer surfaces of the sisal pads and an outer cover and envelope of fabric material.

DEL ROY F. FOWLE-R.

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