Abstract: A flexible coupling for rotatable shafts in the form of a metal bellows features a concentric sleeve which is fastened to one end of the coupling and which terminates in a plurality of fingers or keys projecting into, but without contact with, slots in the opposite end of the coupling. In normal use, the coupling transmits rotary motion from one shaft to the other shaft solely through the connecting bellows which provides the flexibility required for small amounts of misalignment and obliqueness of the coupled shafts. If the bellows broke, the concentric sleeve would function as the fail-safe coupling member to continue the transmission of the rotary motion.

Abstract: An automatic pistol is disclosed having both an electronic firing means for roviding variable rates of fire and a grip adjustable to positions ranging from directly behind the barrel to positions above and below the barrel.

Abstract: An improved process and apparatus system for continuously forming soap bars which are resistant to marring during wrapping and packaging thereof comprising cooling shaped soap billets with a cooling fluid at a velocity thereof and for a time sufficient to harden at least the surface of said billets to the degree which resists marring by subsequent wrapping and packaging.

Abstract: In the process of isolating and recovering polymers in the powder form from their solutions which comprises contacting the polymer cement with steam in a high shear mixer and passing the resulting mixture into a cyclone separator, the invention which comprises an improved method for varying the size of the polymer particle while still maintaining the residual solvent level.