Adjustable mattress

Claim 1

A mattress comprising a first compressibly resilient pad constituting a top section and having flat top and bottom surfaces, a second compressibly resilient pad like said first pad, aligned with, underlying and cooperating with said first pad and constituting a bottom section and also having flat top and bottom surfaces, the top surface of said bottom section being spaced below and being parallel with the bottom surface of said first pad, a first rigid one piece thrust panel spanning and completely underlying and stabilizing the bottom surface of said first pad, a second rigid one piece thrust panel like said first thrust panel and completely spanning the top surface of said second pad and spaced from and situated directly below said first thrust panel, said panels defining a variable space between themselves, rigid end walls abutting coacting relatively movable marginal edges of said pads and also said panels and boxing-in coordinating end portions of said space, said end walls having upper and lower lengthwise edges which are cooperable with the respectively associated top and bottom surfaces of said pads, at least one shaft housed in said space and having terminal end portions journaled in bearings provided therefor in the respectively oriented end walls and having an accessible fixedly mounted handcrank for turning said shaft, panel spreading linkage means located within the confines of said space and interposed between, connected with and serving to spread said panels apart and having operating connection with said shaft, and flexible covering means, ticking for example, encasing and concealing said pads, panels, end walls and said space and assisting in maintaining said pads and panels in mattress-forming relationship.