US61724A - James wakken dayis - Google Patents

Description

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JAMES WARREN DAVISOF WASHINGTON, DISTRICT 0F COLUMBIA.

' Leffe" Patent No. 61,724, mammary 5, 1,867.

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Be it known that I, JAMES WAnnnN DAVIS, of the city of Washington, inthe District of Columbia, have invented new and useful improvements in Spring BedBottoms and I do hereby declare the following to be a i'ull and exact description of the same, reference being had to the accompanying drawing, making part of this specification, and in which- Figure 1 is a bottom View of my `improvements; and Figure 2, a longitudinal section lof the same in the line :v z, iig. 1. Similar letters of reference indicate corresponding parts in the two figures. My invention consists inthe use of two sets of wooden springs, the upper ends of which are securely held l on movable bars, whilst-. their lower ends, interlocking each other, play through mortises in sliding bars, and

are entirely free.

In the drawings, A isthe head end and B the foot end of a frame, constructed in two pieces, hinged together at a, and having fastened to it the mattress C. D D are braces, holding each of the two parts A B together. On each side of the frame, near the head and foot-boards E E', are pivoted plates b b', each two opposite ones bearing between them bars F F', which are pivoted to the lower ends of the plates b b'. To the upper side of these bars F F the upper ends of the wooden springs G G' are securely fastened, their lower ends interlocking each other, and passing through mortises H H' in guide-bars c c'. The ends of these latter cross-bars are provided with pins e e', vwhich move in slots d d laterally, and alsoA allow the bars c c' to turn around their own axes, as clearly shown in iig. 2. When pressure is exertedon the bed it .tends to straighten the curved springs, and consequently to elongate them; they having free play through the mor-tises H H', the Asprings are thus prevented from breaking, which is frequently the case with wooden springs confined at both ends. A very free play is allowed these springs by means of the barsF F', which are pivotedand have a lateral movement. Should any of the springs break it is very easy to replace them. l.After loosening them from the bars F or F', they are drawn out and replaced by new onesy The cross-bars c c', being swivelled so asr to turn on their own'axes, enables them to turn when the springs straighten, and thus follow every movement of the same, guiding and supporting them without having any tendency to break them; I construct my bed frame in two parts, so as to enable the head end to be raised and lowered according to the desire of persons using them. When raised, two legs I I', nwhich are hinged to the frame, retain it in position. I form the slots d'd' either in the framesA and B, or cast or otherwise form them of metal, and attach them by nails or screws. to the frame. I propose to use my springs not only in bedsteads, but also in sofas, lounges, railroad-car seats, and wherever I can employ them.v

Having thus described my invention, what I claimas new, and desire to secure by Letters Patent, is-

1. The curved wooden springs G G' interlocking with each other` secured at theirupper ends, and having their lower ends free, which ends pass through slots in guide-bars c c', substantially as described.

2. The guidebars c e', provided with mortises'H H', and pins ee', working in slots d d', substantially as described. Y

3. The plates b b', in combination with the pivoted head and foot-bars F F', for the purpose and in` the manner described.- v i v 4. The-combination of the wooden springs G Gr', bars F F', plates b b', guide-baise c provided with mortises H H', and pins e e', slots d cl', and mattress C, substantially as and for the purpose set forth.

A JAMES WARREN DAVIS.

Witnesses:

W. A. Boss, C. K EMBEL.

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