Bed having a movable mattress supporting platform

A bed comprising a mattress-supporting platform, a base for supporting said platform, means for mounting said platform on said base, said base comprising a horizontal rectangular frame extending beyond the perimeter of said platform for supporting accessories, legs mounted on said frame on the underneath thereof, the mounting means between said base and said platform including a plurality of first transverse operating shafts pivotably mounted on said frame, at least one arm radially extending from each shaft, at least on link connecting said arm to said platform so that when a turning force is applied to said first transverse operating shaft a portion of said platform to which the associated link is attached is selectively raised or lowered, and wherein said platform is intended, when horizontal, to lie closely adjacent said frame and when inclined to be inclined upwardly at one end from said frame, two pairs of said legs being mounted on said frame, the lower end of each leg being provided with an extendable portion so that the height of legs and thereby the height of said frame above the ground may be varied, a second transverse operating shaft associated with each pair of legs, each second transverse shaft being rotatably mounted at least adjacent one associated pair of legs, and means coupling said second transverse shafts and the respective pairs of associated legs for adjusting the height of the legs by rotation of said second transverse shafts to raise and lower said frame.