US857078A - Mattress. - Google Patents

Description

No. 857,078. PATBNTED JUNE 18, 1907.- E. D. H. LAMBOTTE.

MATTRESS.

-APPLIOATION FILED NOV. 19, 1906.

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PATENTED JUNE 18, 1907.

E. D. H. LAMBOTTE.

MATTRESS.

APPLICATION nun nov, 19. 190a.

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MATTRESS.

Specification of Letters Patent.

Patented June 18, 1907.

Application filed November 19,1906. Serial No. 344,143.

To all whom, it may concern:

Be it known that I, ELIE DIEUDONNE HENRI LAMBOTTE, a subject of the King of the Belgians, and resident of Brussels, Belgium, have invented a certain new or Im proved Mattress, of which the following is a specification.

The present invention relates to a new or improved mattress, and has for its object providing a supporting surface which is elastie in a transverse direction only.

In the mattresses hitherto known the depression of the supporting surface under weight of the occupant is caused by the surface stretching in all directions so that the said surface forms, notably in a longitudinal direction, a general curve which bridges the hollows of the body instead of penetrating into them and molding itself exactly to the contour of the body so as to increase the surface contact to the maximum. The result of this is that the distribution of the weight of the body is not uniform. Some parts are not supported while others support an excess weight, having to bear the weight of the parts not directly supported. The compression of the flesh thus attains at the points of contact a degree notably higher than the mathematical mean. This drawback is so well-known that the use of a special mattress is necessary to correct it and obtain a more equal division of the pressure, whereas in the system forming the object of the present in vention the distribution of the weight is as perfect as when an air mattress is used.

In order to obtain the desired result the mattress is formed of numerous narrow transverse strips independent of each other and of a flexible nature elastically sustained by a spring at each of their ends.

The accompanying drawing, given by way of example, shows a constructional form of the invention.

Figure 1 is a perspective view of an iron bedstead with a spring mattress. Fig. 2 is a transverse sectional view of the attachment of one of the strips with supporting springs. Fig. 3 is a perspective view of one of the supporting springs. Fig. 4 is a view in side clevation of the bed and mattress showing the depression of the bearing surface under the weight of a person, and the perfect adaptation of the said surface to all the curves of the body. Fig. 5 is a similar view to Fig. 4 showing the depression of the bearing surface in spring mattresses as at present constructed.

Throughout the views similar parts are marked with like letters of reference.

In the construction shown on the drawings the mattress comprises two longitudinal L-iron bars 1, 2 to which are fixed the ends of the transverse strips 3, 3, 3 by means of screws, rivets, bolts, or the like 4. Each transverse strip is sustained at each of its ends by means of the spring 5 formed by a flexible strip inwardly bent. These springs, which are held by the screws, rivets, bolts, or the like 4 and by the strips and rivets 9, in sure each of the girths having an independent elasticity from which there results a surface that is generally convexed, elastic in the transverse direction only, and adaptable to the shape or contour of the body. Under the weight of a person this supporting surface, see Fig. 4, is only depressed in a transverse direction adapting itself exactly to the body to be supported without causing any harmful compression thereof. As the pressure is evenly distributed there is no necessity for a second or covering mattress or its equivalent; a simple covering of the strips with a layer of felt being quite sufficient. A bedstead with such a mattress has special hygienic and economic qualities. To prevent the strips from overlapping each other a thin ribbon 6 (see Figs. 1 & 2) 0f hide, metal, or other suitable material may be threaded between them.

Having now particularly described my said invention, what I claim and desire to secure by Letters Patent is:

1. A mattress comprising in combination, a supporting frame composed of angle irons arranged to bring the webs thereof in vertical planes, a plurality of strips of thin flexible non-resilient metal transversely arranged with respect to the longitudinal axis of the mattress and disposed in parallel relation to each other, means for securing the ends of said strips to said angle irons in a manner to cause the body portions of the strips to bow upwardly and bridge the space between said angle irons, and leaf springs fitting against the inner faces of the ends of said strips and extending u )wardly beneath the same, said leaf springs eing rigidly secured to said angle irons near the ends of said strips and rigidly secured to said strips above the angle irons.

2. A mattress comprising in combination, supporting members, a plurality of strips of thin flexible nonresilient metal transversely arranged With respect to the longitudinal axis of the mattress and disposed in parallel relation to each other, means for securing the ends of said strips to said supporting members, leaf springs for supporting each strip, means rigidly securing said springs to said supporting members, and means rigidly securing said springs to said strips.

3. A mattress comprising in combination, stationary supporting members, a plurality of strips of thin flexible non-resilient metal transversely arranged with respect to the longitudinal axis of the mattress and disposed in parallel relation to each other, means for rigidly securing said strips to said supporting members, and yieldingly acting means for supporting said strips, said yieldingly acting means being secured to said strips to maintain the parts in alinement.

4. A mattress comprising in combination, supporting members, a plurality of strips of thin flexible non-resilient metal transversely arranged With respect to the longitudinal axis of the mattress and disposed in parallel relation to each other, means for securing said strips to said supporting members, and

other, individual springs for supporting said strips, and means for maintaining said springs in alinement or supporting relation to said strips.

6. A mattress comprising in combination, supporting members, a plurality of thin metal strips transversely arranged with respect to the'longitudinal axis of the mattress and disposed in parallel relation to each other, means for securing said strips to said supporting members, and individual yielding y acting means for supporting said strips, said yielding means being secured to said strips and to said members to maintain said individual means in alinement With said strips.

In testimony whereof I have hereunto set my hand in presence of two Witnesses.

ELIE DIEUDONNE HENRI LAMBOTTE.

Witnesses O. VAN NELsEN, GREGORY PHELAN.

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