US121437A - Improvement in bed-bottoms - Google Patents

Description

JOHN C.-WALKE-R & WILLIAM LAPISH'.

Improvement in Bed Bottoms.

No. 121,437. Patented Nov-28,1871.

Witnesses: hventor fitter/says.

UNITED STATES JOHN C. WALKER AND WILLIAM LAPISH, OF BURLINGTON, IOWA.

IMPROVEMENT IN BED-BOTTOMS.

Specification forming part of Letters Patent No. 121,437, dated November 28, 1871.

To all whom it may concern:

Be it known that we, JOHN C. WALKER and WILLIAM LAPISH, of Burlington, in the county of Des Moines and in the State of Iowa, have invented certain new and useful Improvements in Bed-Bottoms; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon making a part of this specification.

The nature of our invention consists in the construction and arrangement of a bed-bottom, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure-l is an end view, Fig. 2 is a side view, and Fig. 3, a bottom view of our bed-bottom.

A A represent the bed-slats attached to crossbars B B, and these cross-bars supported upon spiral springs O O, which are attached to and rest upon other cross-bars, D D, connected by diagonal bars E E. Under the cross-bars B B, and upon the cross-bars D D, are two sets of levers, G G, each set consisting of two pivoted together in the center. The ends of saidlevers slide in staplesc a attached tothe under side of the bars B B and the upper sides of the bars D D. Under the center slat A are similar levers G G, the lower ends of which rest upon blocks H H, projecting inward from the cross-bars D D, and the ends of said levers G slide in staples a, the same as described for the levers G G. The object of the levers G G and G G is, first, to bring the weight equally upon all the springs at the same time, no matter on what part of the bottom the person may be resting and second, that the bottom will preserve a level surface, no matter on what part the weight or pressure may come. The latter in itself is a great improvement, the want of which is a fault in nearly all spring bed-bottoms now in use.

It is well known that unless a person keeps in the center of the usual spring bed-bottom it is difficult for him to maintain his center of gravity; or if two persons of unequal weight occupy the same bed the heavier will bear down; at the same time the lighter will rise up in a corresponding de gree, forming an incline upon which both are apt to slide down. Our bedbottom obviates all these difficulties.

Havin g thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

The combination, with a spring bed-bottom, of the levers G G and G G, constructed and arranged to operate substantially as and for the purposes herein set forth.

In testimony that we claim the foregoing We have hereunto set our hands this 25th day of September, 1871.

JOHN G. WALKER, WM. LAPISH. Witnesses:

ROBERT WALKER, T. M. MGOLELLAN.

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