Abstract: Thermal stability of microbial rennet is reduced by treatment of the rennet in aqueous medium with aliphatic or inorganic peroxy acids or salts thereof. Preferably, the microbial rennet is Mucor Miehei rennet and the peroxy acid is a lower aliphatic peroxy acid such as peracetic acid. The thermally destabilized microbial rennet is inactivated when whey containing the rennet is pasteurized.

Abstract: An extruder assembly (1) for extruding round, cylindrical plastic pipe having a smooth inner pipe wall and a ribbed or ridged outer pipe wall, comprising a feed screw (2) for transporting and softening the plastic material (4), and an annular nozzle having a central mandrel (6). The mandrel constitutes a cylindrical, coaxial extension of the feed screw. The mold part (8) of the nozzle is provided with one or more parallel, helical grooves (14) with the spiral extending in the direction of rotation of the screw and mandrel, and the mold part (8) is provided with a lubricating device (17) for lubricating the molding surface of the mold part. A calibrating device (27) with helical grooves (28) is provided downstream of the annular nozzle.

Abstract: In a method for treating straw placed in a processing chamber (6) with gaseous ammonia, the gaseous ammonia is supplied in aqueous solution (2) and liberated by heating with a heater (5) to circulate within the straw in the processing chamber. By supplying the ammonia in solution, it is possible to use an ammonia source in the form of solutions readily available on most markets, even in less technically developed countries.When the surplus ammonia is removed from the straw (FIG. 3), it is washed out of the air/gas mixture leaving the processing chamber by the use of a scrubber (8) so that no or substantially no ammonia is discharged to atmosphere. The liquid from the scrubber (8) is kept in reservoirs (14,15) for use in treating the next batch of straw, or drained off to liquid manure as shown.

Abstract: Fuel briquettes on the basis of solid organic combustible material, notably biomass material such as straw or other agricultural, horticultural and silvicultural waste or organic household waste, or fine particle industrial waste obtain a satisfactory storing and transporting quality when the binder therein is 3-50% by weight of fly ash coke. Fly ash coke is the carbon rich fraction separated from the mineral components of fly ash, preferably by flotation under specified conditions. The briquettes are otherwise prepared in briquette presses according to the teachings of the art. Preferably there is used a nozzle pressure for the extrusion of 70-100 kg/cm.sup.2 and it is advantageous to preheat the raw materials to 50.degree.-70.degree. C. before conveying them to the briquette press.

Abstract: A machine and method to operate the machine to provide a plurality of valve-like perforations in the rubber-like backing of a nap mat or carpet by delivering the nap mat or carpet to and under a spiked roll. The machine includes a sensing device to ensure the leading and trailing edges of the nap mat are not perforated by the spiked roll.

Abstract: The invention relates to measuring apparatus for a refrigeration system for detecting a liquid component in refrigerant leaving the evaporator of the system through a suction conduit associated with a heating element heating the tube wall. The measuring apparatus includes a first temperature measuring sensor in thermal contact with the suction conduit located just sufficiently away from the heating element so as to be substantially unaffected by the heating element. A second temperature measuring reference sensor is in thermal contact with the suction conduit an optimum distance downstream from said heating element to provide a reference temperature indicative of the dry temperature of the refrigerant.

Abstract: The invention relates to a hot water heating system which includes individually operated radiators arranged in parallel. A heat exchanger and a pump supply hot water to the radiators. Control apparatus is included for reducing the on and off switching frequences. The control apparatus includes an integrator which outputs a value which is proportional to the difference between a reference temperature and the temperature at the output of the heat exchanger. The integrator value is fed to a hysteresis switch which switches the heat exchanger on and off when the integrator value reaches the opposite limits of the hysteresis switch.

Abstract: The invention relates to a thermostatic type valve for a hot water radiator. The valve has an adjustable insert for changing the throttle setting of the valve. An intermediate setting element has a spline connection with the insert to facilitate turning of the insert. An adjusting ring likewise has a spline connection with the setting element and also a spline connection with the valve housing which facilitates securing the intermediate setting element to the housing. The adjusting ring is axially moveable relative to the valve housing by reason of the spline connection therewith to permit disengagement therefrom and allow turning of the setting element and the adjustable throttle setting insert to which it is nonrotatably connected by the first referred to spline connection.

Abstract: The compound (-)-trans-4-(4-fluorophenyl)-3-(4-methoxyphenoxy)methylpiperidine and pharmaceutically-acceptable acid addition salts thereof, pharmaceutical compositions thereof, and their use in potentiating the 5-hydroxytryptamine(5-HT) of a subject in need thereof, for the alleviation of any of various physiological abnormalities, are disclosed.

Abstract: The apparatus consists of a cylindrical drying chamber, which is provided with an upwardly conical bottom. The fluidization and drying medium is supplied to the chamber through a substantially circularly extending slit between the conical bottom and the wall of the drying chamber from an annular distributor for the fluidization and drying medium. A stirrer is placed coaxially in the chamber, the blades of said stirrer being parallel to the conical bottom. Preferably, the blades of the stirrer are positioned at a small distance from the conical bottom. The cylindrical drying chamber and the annular distributor may have a common wall, which is provided with a heat insulating layer on the side facing the distributor.

Abstract: The invention relates to a rotary slide valve subassembly for a hydrostatic steering unit. The slide valve subassembly includes two concentric sleeves having near one end a plurality of circumferentially distributed axially extending slots which, in the neutral position, create a short circuit between the supply and discharge sides. The slots subdivide the corresponding sleeve sections into stays extending from the main sleeve sections. A construction is provided to avoid jamming of the sleeves by joining the stays of each sleeve section with a closed ring member and undercutting the inside diameter of the stays of the inner sleeve section to cause weakening thereof relative to the stays of the outer sleeve section.

Abstract: A vertical roller mill has a grinding table (1), rollers (3) and a separator (6) for separating ground material, which is conveyed to the separator in an air stream supplied through an inlet (7), into a fine fraction, which passes out through an outlet (8), and a coarse fraction which is returned for further grinding through an outlet (10). A part of the ground material is conveyed through an outlet (11) to a second separator (13), where it is separated from the air and returned for further grinding via an outlet (14) and an inlet (9) for fresh material to the mill. This provides a flatter grain size distribution curve in the finish ground material.

Abstract: A mechanism for raising and lowering a seat, especially designed for handicapped persons, comprises two supporting arms (A', B') which are both at one of their ends coupled to the seat (E), at the front and rear edge thereof, respectively. At their other end, the supporting arms (A', B') cooperate with a fixed point (1', 2') each. At least one of the supporting arms is coupled to a driving member and the two supporting arms (A', B') are interconnected at a point between their ends. With a view to obtaining a space-saving but all the same stable mechanism allowing a physiologically correct trajectory of the seat during its raising and lowering, the supporting arms (A', B') are directly pivotally interconnected (D), and one of the supporting arms cooperates with the fixed point in such a manner that it is displaceable in relation to said point.

Abstract: The transmission comprises a hollow input member (1) and a coaxial output member (2) supported for rotation relative to the input member. A positive displacement pump comprises a cylinder block (12) secured to the input member and a rotor (16) which is journalled on an eccentric pin (17) and which drives the pump pistons (15). A positive displacement motor comprises a stator part (6) secured to the input member and a rotor part (5) secured to the output member. The motor cylinders (8) are supplied with hydraulic liquid from the pump through duct means (35, 37, 39) in a disc-shaped control member (22) journalled on the eccentric pin (17) and rotating together with the pump rotor (16). Return flow from the motor to the pump occurs through a space (28) which within the input member surrounds the control member (22) and which communicates with each pump cylinder (14) during the suction stroke of the associated pump piston (15).

Abstract: In the production of wrappers or binders of different sizes from tobacco leaves, these leaves are at first divided into strip pieces that are transferred to a conveyor section and by means of a scanner are scanned to ascertain usable areas with preference from the largest to the smallest size. The strip pieces cut out of the same halves of tobacco leaves (right and left sides) are advanced on a further conveyor section consisting of separate, parallel belts, from which strip pieces of equally large, usable areas are collected in the same bobbin, in which they are oriented parallel to the axis of the bobbin and with their usable areas aligned in the longitudinal direction of the bobbin web. The cutting of nondefective final wrappers or binders is subsequently carried out in a separate operation and without further sorting. This provides for obtaining an optimum output from the tobacco leaves by using an apparatus of non-complicated design.

Abstract: A container, which is flat in its empty condition, of plastic, rubber or another flexible material, especially for the collection of urine and/or faeces. The container comprises two outer walls (2) joined together in a surrounding seam (6), an inlet (54) and, if desired, an outlet (58). The inlet is provided with a non-return valve formed by enveloping a tube end (76) in two intermediate layers having the same extent as the outer walls (2) in the width direction of the container, the intermediate layers having free edges (80) spaced from the mouth (78) of the tube. The intermediate layers lie closely against each other in an area (56) situated between the edges (80) and the mouth (78) and delimited laterally by seams (72,74) joining the intermediate layers.

Abstract: An apparatus for producing units fit for packing, preferably of a cheese product of the type cheese-base, is adapted to be connected to a cheese-base production system from which the cheese-base is pressed out in a continuous flow. The apparatus comprises an accumulating pipe connectable to the discharge pipe of the cheese-base production system. This accumulation pipe expands in the flow direction and ends in a cylindrical pipe section of a first greater sectional area. Subsequently, the cylindrical pipe section of the accumulating pipe is connected to a cylindrical extrusion pipe of a second smaller sectional area. At the discharge end of the extrusion pipe, a cutting device is provided for cutting desired lengths of the extrudate. This apparatus allows production of cheese-base units in a suitable size fit for further handling and transport.

Abstract: One-sided corrugated cardboard machine comprising a first fluted roller and a second fluted roller in meshing engagement with each other and between which a web of cardboard is introduced to be corrugated, the second fluted roller being provided in the circumferential outer surface thereof with several annular grooves arranged at axially spaced intervals, and a device which during the movement of the web of corrugated cardboard from the position of engagement between the second fluted roller and the first fluted roller to the position of engagement between the second fluted roller and an auxiliary roller biases the web of corrugated cardboard with a vacuum pressure via the suction grooves, wherein the second fluted roller has suction boxes associated therewith one each at the inlet and the outlet of the web of cardboard, said suction boxes respectively extending only over a small portion of the circumferential region of the fluted roller not covered by the web of corrugated cardboard and being closed on the s

Abstract: A survival blanket especially intended for transporting and holding injured and sick persons consists of a surface element divided into four areas, i.e., a centrally disposed, substantially rectangular body section, an adjacent, also substantially rectangular, smaller or inner fold flap, a similarly adjacent, also substantially rectangular, larger or outer fold flap, and a head section disposed at one end of the body section. On the outside surface of the blanket, along fold lines and between the middle area and the side areas, respectively, carrying straps with loops are provided, said straps being secured, preferably by sewing, to reinforcing strips provided along the fold lines.