Abstract: A process is provided for forming a plurality of objects simultaneously from a plurality of superimposed sheets of deformable and fusible material comprising the steps of heating said plurality of superimposed sheets until said material in said sheets reaches a temperature sufficient to allow plastic deformation while maintaining time, temperature and pressure conditions at the contiguous faces thereof below those causing fusion of said material and forming said plurality of superimposed sheets simultaneously.

Abstract: A mobile structure is provided which comprises flexible joint assemblies with increased flexibility in a vertical direction and increased rigidity in the horizontal direction to facilitate towing over uneven terrain and further comprising free wheeling dish-like castor assemblies supporting the structure.

Abstract: An electronic sensor circuit is provided which generates predetermined frequencies corresponding to the resultant force vector of the gravitational and inertial forces. There is further provided electronic circuit means for generating an audible response which increases in intensity in correspondence with the magnitude of the deviation of the force vector from a defined datum. In the preferred embodiment an electrolytic transducer is used to sense gravitational and inertial forces and a phase detection circuit is provided to monitor the output and control the input generator for selection of a frequency corresponding to the deviation occurring.

Abstract: A mobile structure is provided which comprises flexible joint assemblies with increased flexibility in a vertical direction and increased rigidity in the horizontal direction to facilitate towing over uneven terrain and further comprising free wheeling dish-like castor assemblies supporting the structure.

Abstract: A patient transfer apparatus is provided which utilizes a movable cart onto which is structurally annexed an expandable series of finger-like projections fitted with rollers which, in an expanded mode may be inserted into correspondingly hollowed out areas of a hard rubber or vinyl mattress foundation which is permanently affixed to a hospital or other bed thus enabling the mattress and any patient thereon to transfer across these rollers to or from the movable cart and/or bed.

Abstract: A valve is provided having multiple vertically spaced inlet ports, and having a port selection mechanism for connecting to the outlet selected inlets corresponding to predetermined reserve levels.

Abstract: An automatic tracking apparatus is provided for maintaining alignment of music rolls in player organs and player pianos using an improved, air pressure controlled, sensing and control device. More particularly this system incorporates an air pressure sensing device utilizing a piston/cam controlled pendulum to operate a pneumatic alignment device.