Abstract: A vertically adjustable and tiltable bed frame has two actuators which may be used simultaneously or independently to tilt the frame and which also may be used to raise and lower the frame. A level sensor is connected to the actuators so that if the tilt varies from the adjusted and desired position, one or other actuator is adjusted to restore the desired tilted position.

Abstract: An adjustable bed comprises a frame having a backrest arranged to be lifted by an actuator via a crank, and a thighrest similarly arranged to be lifted by an actuator. A legrest is freely pivoted to the thighrest. The angles of the parts are sensed and maintained in proportion by control means, so that as, for example, the backrest angle is steepened, the thighrest is also raised proportionately, but to less extent, taking the legrest with it.

Abstract: A hospital bed is described having a twin canting plate mechanical jack for raising the top of the bed relative to the base or chassis, for holding the top in any elevated position, and for permitting descent, in which the jack comprises a horizontally arranged main shaft which extends through the canting plates, with opposite ends of the shaft being connected to respective bell cranks of a linkage system which carries the bed top. A main shaft passes through a locking plate and a raising plate, and it is an important feature that a pedal shaft which effects displacement of the locking plate to allow the top to be lowered is also connected to the raising plate so that the raising plate locks the bed during the time that the locking plate is being moved to the release position so that subsequent descent of the bed top can be without jerk.