Abstract: An apparatus for mixing or blending, and discharging ground meat or the like. The apparatus includes a tub having a pair of spaced, agitator mounted, shafts which shafts are mounted therein for counter-rotation, with the agitators over-lapping, to mix and continuously circulate the meat and also to rapidly discharge same through a movable door when desired. Agitators are fixedly and specifically positioned on the shafts to achieve the desired objectives depending only upon the position of the discharge door for each function.

Abstract: A novel method in accordance with the present invention comprises the formation of compacted pellets of solid phase carbon dioxide from liquid phase carbon dioxide to form snow, compressing said snow to force the same through an extrusion passageway forming elongated, rod-like extrusions of compacted solid phase carbon dioxide and exerting back pressure against the rod-like extrusion as they leave the passageways thereby stabilizing the extrusions permitting the escape of gas without fracturing the same.

Abstract: A humidifier system for delivering breathing gases such as air or oxygen from a respirator, anesthesia machine, oxygen source, or the like to a patient under controlled conditions of temperature and humidity is disclosed. The humidifier comprises a support housing adapted to receive a removable water tank, the housing also containing a low water sensing system, a water heating means, and a system for sensing and for regulating the temperature of the water in the tank. The tank includes an air inlet leading to a diffuser chamber, from which air flows through a diffuser plate, through the water in the humidifier, and thence to an outlet for delivery to the patient. The breathing gases are forced through the water tank under positive pressure and thereby are heated and humidified prior to delivery.

Abstract: In a process and apparatus for the mechanical separation of a combination of meats and bone the material is conveyed by a feed screw through a conduit having at least a part of its wall formed as a separator screen. The screw moves the material between its lands in a manner such that it is pressed radially outwards against the screen with a minimization of shear along the screen. The screen is constituted by a plurality of closely spaced plates which flex under the effect of the outwardly operative pressure to facilitate passage of the meat fraction therethrough while retaining the boney fraction on the inner wall.

Abstract: A colloidal dispersion of hydrous antimony pentoxide particles is made by a process which comprises introducing particles of antimony trioxide into a polar organic solvent selected from the group consisting of formamide, methylformamide, dimethyl formamide, acetamide, methylacetamide, dimethylacetamide, dimethyl sulfoxide, formic acid, tetramethyl urea, methanol and ethanol, and contacting said particles with aqueous hydrogen peroxide in the presence of an aliphatic alpha-hydroxy carboxylic acid and a halogen acid selected from the group consisting of hydrogen chloride, hydrogen bromide, and hydrogen iodide at a temperature of from about 0.degree. C to about the decomposition temperature of the reaction mixture for a length of time sufficient to convert at least a portion of the antimony particles to colloidal particles of hydrous antimony pentoxide.

Abstract: A seal is disclosed for a shaft journalled to rotate within a sleeve. The seal comprises annular members mounted between the shaft and the sleeve for relative movement along an axis common to the shaft and the sleeve. The members are biased into sealing engagement with each other and are separable by fluid pressure for relative rotation of the shaft and the sleeve with no surface-to-surface wear of the seal.

Abstract: A valve having separate closures for its inlet and its outlet respectively comprises a housing having the inlet in an elongated tubular wall and the outlet at an annular valve seat. A piston constituting one closure is movable coaxially within said wall so as to open and close the outlet. A sleeve constituting another closure is movable coaxially over the piston and within said wall so as to open and close the inlet. The piston and the sleeve are associated for interdependent movement.

Abstract: A method and apparatus is disclosed for controlling the temperature rise of a material placed in a microwave oven in which use is made of a correlation between the power delivered to the load and the residual field within the oven at a position spaced away from the load. By sensing the strength of the electromagnetic field, electronic circuitry is provided for evaluating the time required to achieve a given temperature rise of the material being heated.

Abstract: The tendencies of ultraviolet light absorbers to exude from polyolefins are minimized by the use of amorphous, micro-sized silica.

Abstract: A control circuit is provided for a microwave oven in which a crystal rectifier is responsive to variations in the level of the electromagnetic field within the oven cavity when items of different energy absorption or reflection characteristics are placed in the oven. The electric current developed by the crystal is employed to generate a ramp type electrical signal which is compared with a fixed reference voltage to control the termination of microwave power to the oven. Compensation for the nonlinear relationship between crystal current and the level of the electromagnetic field within the oven is provided. In addition, compensation for the initial temperature of the food item which is placed in the oven is provided.

Abstract: A colloidal dispersion of hydrous antimony pentoxide particles is made by a process which comprises introducing particles of antimony trioxide into an aliphatic polyhydroxy alcohol having vicinal hydroxyl groups and contacting said particles with aqueous hydrogen peroxide at a temperature of from about 0.degree. C to about the decomposition temperature of the reaction mixture for a length of time sufficient to convert at least a portion of the antimony particles to colloidal particles of hydrous antimony pentoxide.

Abstract: A plurality of food items are assembled on a tray together with a ferromagnetic mass which is positioned at a predetermined location on the tray and is arranged to change from a ferromagnetic to a paramagnetic state when a predetermined quantity of microwave energy has been received thereby. The food items are held in predetermined positions relative to themselves and the ferromagnetic mass by means of a templet which acts as a retaining means for the food items.

Abstract: An electromagnetic oven is provided with a control system comprising a ferrite sensor located within the oven, a magnetic property detector coupled to the sensor, and control means responsive to signals from the detector.

Abstract: An electric welding torch adapted to hold an electrode comprises a helically fluted tube made of flexible material and adapted to surround a portion of the electrode inserted in the tube. Means is provided for mounting the tube in the torch and permitting relative rotation of displaced portions of the tube along the electrode for selectively holding the electrode in the tube by physical engagement of helical land portions of the tube against the surface of the electrode and for releasing the electrode by twisting of the tube in a direction opposite that of the spiral flutes or by application of axial compression of the tube.

Abstract: A suction bottle assembly for effecting drainage from a patient. The assembly has a float, which is responsive to the level of drainage in the bottle, that is connected to the cover by a preferably parallel bar bracket. The bracket causes the float to rise substantially vertically and also seals off the vacuum inlet and opens a vacuum relief valve to create a pressure balance within the bottle with the outside atmospheric pressure, thus preventing overflow.

Abstract: A strong, clean phthalocyanine pigment is prepared by conditioning the crude pigment with 4-sulfophthalic acid or the anhydride thereof.

Abstract: Apparatus for making separate stacks of sliced material successively cut from a downwardly moving mass of material on a common cutting level comprises means for supportingly accumulating successive falling slices into stacks of a selected number of slices and discharging the stacks when the selected number of slices has been accumulated, said means includes a pair of support platforms or doors reciprocal toward and away from each other between a closed or accumulating position for supporting a stack as slices are accumulated and an open or discharge position wherein the platforms are spaced apart to discharge downwardly an accumulated stack therebetween. The platform structure is movable between an upper starting level spaced below the cutting level and a lower level wherein discharge of the accumulated stack occurs.

Abstract: A dielectric heating arrangement for drying wide wet webs of material is provided in which a rotatable drum structure is provided for supporting the web on its periphery and moving it past a stationary set of dielectric heating electrodes of the stray field type positioned close to the periphery of said drum over a substantial portion of the circumference thereof. The drum periphery comprises a series of closely spaced members which extend parallel to the axis of the drum, the outer edges of said members acting as the outer periphery of said drum on which the web is supported as it is moved past said electrodes.

Abstract: The coupling of a bis-acetoacetylamino compound and a diazotized aminophthalic acid proceeds rapidly to the disazo stage in an aqueous solution of a cyclic ether such as tetrahydrofuran at about room temperature or below, e.g., from about 10.degree.C. to about 25.degree.C., to form the disazo tetracarboxylic acid in very high yields. The corresponding diimide is formed by reacting the tetracarboxylic acid with two molecular proportions of ammonia or a primary amine.

Abstract: An apparatus including a track which may have square corners, a carriage therefor, a carriage braking device, and a container holder supported from the carriage, wherein the holder may be quickly located in a desired position and maintained in this position.