US73799A - Improved bed-bottom - Google Patents

Description

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'lO ALL WHOM IT MAY CONCERN:

Be it known that I, F. C. GRIDLEY, ot` Hudson, in the county of St. Croix, and State of Wisconsin, have. invented a new and improved Spring-Bed Bottom; and I do hereby declare that' the following is afnll, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specilication1 in Which-n Figure 1 is a top View oi' the improved bed-bottom applied to a bedstead.

Figure 2 is a-longitudinal section through g. 1, taken in the vertical plane indicated by line fc.

Figure 3 is an end view of thespringbottorn detached from the bedstead.

Similar letters of reference indicate corresponding parts in the three figures.

This invention relates to an improvement on that class of spring-bed bottoms which have their slats suspended from rails by means of elastic-rubber loops or bands, which allow the slats to have a free elastic motion independently of their own 'elasticity or tlexibility.

The nature of my invention and improvement consists in attaching the slats, at their ends, to short transverse bars, by means of pins projecting from the upper edges of said bars, so that any one or more of the slats can be removed at pleasure, and reversed or turned end for end, should they after long use sag in the centre; and in suspending said transverse Slat-supports from removable transverse head and foot bars, by means of elastic bands, applied at the extremities of each aloft-support, as will be hereinafter described. And in combination with the foregoing arrangement, the invention further consists in the employment, at intermediate pointsbetvreen the end-straps, by which the slat-supportsu-re suspended, of elastic and adjustable straps for levelling or adjusting and keeping the bed in a horizontal position, and compensating for any sagging which -might take place, as will be hereinafter described.

To enable others skilled in the art to understand my invention, I will describe its construction and operation The drawings represent my invention applied to a common formot` bedstead, consisting of head and foot portions A B, united together in any suitablemanner by means of longitudinal rails C C. I make this explanation so as to be understood that my invention is applicable to any of the well-'known forms of bedsteads. The only change-required `to be made is the addition to the posts ofthe bedstead, inside thereof, of blocks-a: a, which serve as supports and lateralabutments for the bed-bottom. At the ends of' the bedstead, and supported in horizontal positions, are tivo transverse bars, Z1 6, which are made strong enough te sustain theload-ivhieh itis required of them te bear; The upper edges of .bars b b are rounded, and their lower edges may be flat, as shown in tig. 2.v The longitudinal slats D are made so that theyvvill have an elastic flexibility, and holes are 'made through their ends by which they ure attached to pins a c', rising perpendienlarly from the upper edges of bars G Gr Gr G. The ends of the slats being thus attached to the bars G, it 1.vill be seen that the slats can be removed and turned over should they sag after long use. 'lhere are tivo bars, G, at the head, and two at the foot ot' the eed-bottom, and they are of such length as to move freely between the endpieces a ct, which support the xedlbars Z1 t. lhese bars Gr are all of an equal length, and their inner ends nearly abut at the middle of the length of the bars b, thereby forming, in conjunction with th'e slats which are supportedv upon them, as stated, a sectionalA bed-bottom consisting of two longitudinal, independent sections, as `shown clearly in iig. Each one of said sections is suspended independently ot' the other by means of elastic loops d d, which are slipped under the ends of the short bars G, and over the transverse bars b as shown in fig. 3, These elastic straps will allow each one of the short bars Gr to rise and descend Without necessarily moving any other one of these bars. In practice libshall make the straps CZ at the head of the bed much stronger than those at thei'oot of the bed, so that the bed will be sustained, when one ormore persons are' lying upon it, in or nearly in a horizontal position with respect to its length.

In iig. 3 it will beiseen that I haveapplied to one of the sections of the bed-bottom tivo intermediate loops or straps, g y; these are made of rubber, and provided with bnchle-i`astenings, so that theloops can be shortened or lengthened at pleasure, Une, tivo, or more of these auxiliary straps g may be applied to-the ends of' the sections composing the bed-bottom, asv circumstances require.

'.lhel straps g not only afford auxiliary supports for the sections, but, being adjugfgiie, they serve as a ready means for adjusting and levelling the slatted ined fh a horizontal planel Whether there be a weight upon it or not.

bottom, so that it will be sin mea 2 l `In the use ofvbed-bottoms having their slats suspended by elastic loops, as hitherto arranged, great inconenience is experienced when there is more Weight upon one side of the bed than upon lthe other, by the bed inclinilng to vthat side which preponderates. By my invention I provide in one bed-bottom two independentlysuspended sections, eaeblone of which is composed of i1 number of slats, and each one occupies one-half the A width of the bed and while this is the case, I also provide` for sustaining each section by stronger or weaker loops, as may be required. i Y i I do Ino t conne my invention to any definite number of slats and elastic suspending-loops for'thc sections, as these will vary, according to the width of the bed-bottom and theload which the sections are required to sus-l tain. When there is no weight upon the slotted bottom, the elastic suspending-loops will hold the slats rmly in-contact with the bottom of the long rods 6 b, so that the slats Willl not become displaced in making up a bed, or in removing the bedbottom from a bedstead. I mean by the use of the-term sectional bed-bottom, one which is composed of two longitudinal sections, eachione of which is composed of a lnumber of slats,iattached to separate supporting-rods, arranged beneath', and suspended from stationary rods, which are supported at their ends by the bedstead, as set forth. v

Having described my invention, what I ciaim as new, and desire tosecure by Letters Patent, is-

The arrangement of the bars b and G, elastic straps gg, and slats D D, in the construction of a bed-bottom, when such bottom is 'made in sections, and adjustable in the manner shown anddescribed. y s

F. C. GRIDLEY.

Witnesses:

R. C. KENDALL, ff. W. WHITE.

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