Abstract: A device for use with a base of a patient support system. The device has a patient supporting member attached to the base and a sheet engaged by a roller so that the sheet may be located under a patient and moved, thereby moving the patient from one location to another. The roller is supported by a bearing member and, in accordance with the subject invention, the bearing member does not need to be removed from the base, but may be pivoted to an engaged position for engaging and supporting the roller and may be pivoted to a stowed position for storage within the base when not in use.

Abstract: The specification discloses a novel refrigeration/air exchanger unit (30) adapted for use with a main refrigeration unit (28) of a trailer truck (10) including frozen and refrigerated compartments (20, 22) to maintain the refrigerated compartment at a predetermined temperature above freezing without an auxiliary refrigeration unit. The system (30) includes a duct (34) interconnecting the compartments, a fan (44) for drawing cold air from the freezer compartment into the refrigerated compartment to lower the temperature therein, and another fan (62) and associated heating element (72) in the refrigerated compartment for modulating the temperature therein. The fans (44, 56) and heating element (72) are automatically controlled responsive to circuitry including a thermostat (78).

Abstract: The cutter head is adapted to cut material such as wood, frozen meat, vegetables and the like into pieces of predetermined length, width and thickness. The cutter head has a rotor body of a cylindrical shape formed with at least one axially extended piece-receiving cavity that has a leading side; and a knife unit that includes a mounting section with a knife section projected outwardly from a flat side of the mounting section. The knife section has a flat leading side and a flat trailing side which intersect at an acute angle to form a cutting edge. The knife unit is supported in the rotor body with the flat side of the mounting section in a plane parallel to a plane extended diametrically of the rotor body and through the cutting edge when the leading side of the knife section is arranged opposite the leading side of the piece-receiving cavity.

Abstract: Self-inverting emulsion polymers and their use as drainage aids, retention aids, saveall flotation aids and process water flocculants. The polymers are copolymers and homopolymers based on acrylamide, polymerized in the presence of water, an inert hydrophobic liquid, free radical catalyst and an emulsifier having a HLB of at least 7.