Abstract: Electrical switching device for controlling current flow from an alternating current source (10) and having a main thyristor (14,16) such as a triac or a silicon controlled rectifier connected in series with a load (12) across the source. The control terminal (14c,16c) of the thyristor (14,16) is coupled via a diac (30) to a control signal generating circuit (18) operable to vary the conduction interval of the thyristor (14,16) on each cycle of voltage from the supply (10) by switching the diac (30). A further thyristor (38,42) such as a triac or silicon controlled rectifier is connected to be responsive to the switching of the diac (30) to be itself switched so as to provide a current flow path from the control terminal (14c,16c) of the main thyristor to render the main thyristor insensitive to immediate further control under influence of the diac.

Abstract: A screw conveyer is provided with a heat insulating casing (16) and with a plurality of pipe burners (30) arranged between a perforated bottom plate (17) of the casing and a housing (13) which contains the screw conveyer and is used for drying waste products which the conveyer feeds to a furnace (27).

Abstract: A polyurethaneurea which comprises a polymer obtained by a polyaddition reaction of (a) a polyetherpolyol derivative and (b) an at least 2-valent polyisocyanate, the polyetherpolyol derivative having at least, on average, one terminal amino group in which at least, on average, one hydroxyl group is substituted by a residue of para-aminobenzoic acid ester, and having the general formula ##STR1## wherein n is an integer of 2 to 8, x is an average value and a positive number of 0.05 n to (n-1), A is an n-valent radical obtained by removal of hydroxyl groups from an n-valent polyoxyalkylenepolyol having a molecular weight of 400 to 10,000.

Abstract: A work table for a saw includes a pair of parallel spaced apart horizontally extending guide channels, each guide channel having a vertical web and upper and lower horizontal flanges, the open sides of the channels facing one another; a saw support plate having two pairs of runners for supporting the saw support plate, one pair of runners at one end of the plate and projecting outwardly from the sides of the plate and the other pair of runners at the other end of the plate and projecting outwardly from the sides of the plate. The runners are received within the channels to support the saw support plate in a horizontal plane and the saw support plate is movable in a horizontal plane. The guide channels are provided with apertures in their upper flanges through which the runners may pass, whereby a pair of runners may be lifted from the channels to rotate the saw support in a vertical plane to invert the saw plate and then the runners may be reengaged with the channels.

Abstract: A method for the automatic semicontinuous peritoneal dialysis, wherein the dialysing solution is pumped from the supply bag to the peritoneal cavity of the patient in a predetermined amount sensed by control means, by which the pumping means are actuated to change over the pumping direction, the same dialysing solution being pumped to and from the peritoneal cavity for a predetermined number of times.Patient safety is assured by providing shunting means for the pumping means, whereby the latter are short-circuited between the delivery and the suction side if any abnormal condition occurs.

Abstract: A liquid composition comprising a dispersion of silica colloid in alcohol and a thermo-setting resin. The dry film of this composition is superior in chemical resistance, surface hardness, abrasion resistance, heat resistance and adhesiveness to a substrate.

Abstract: Photolithographic materials for use in the production for example of microelectronic circuits and sensitizing and printing elements in offset printing plates show marked improvement in sensitivity, non-critical outline developement and good shelf life as well as high resolving power while remaining sensitive to exposure from a wide variety of radiation sources if comprising a carrier base and on the carrier base a thin homogeneous or emulsion layer of at least one photosensitive substance which is capable upon exposure to radiation of yielding a latent positive image and exhibiting photoselective capacity for dissolution in alkaline developer according to such image, the photosensitive substance being either unreactive with the carrier base on exposure to radiation or reactive with the carrier base and isolated from the carrier base by interposition of an intermediate layer which does not react with the photosensitive substance when the latter is exposed to radiation.

Abstract: There is provided a composite having improved structural integrity and suitable for use in abrasive, high temperature environments. The composite comprises randomly laid and oriented heat resistant fibers interlocked together into the form of a shape sustaining paper having two lateral surfaces. The paper has a thickness of from about 0.01 to 0.50 inch. An abrasion-resistant, high temperature resistant scrim is disposed upon at least one of the lateral surfaces of the paper, and a network of abrasion-resistant, high temperature-resistant threads is stitched through the scrim and the paper such that the scrim is mechanically locked to the paper by said threads. The network of threads and the scrim substantially retain the structural integrity of the said paper in use in the abrasive, high temperature environments.

Abstract: Substituted imino derivatives of 4 H-2, 3-dihydrobenzopyran and 4 H-2, 3-dihydrobenzothiopyran, and pharmaceutical compositions containing them. The compounds are active on the central nervous system, in particular as central nervous system depressants, i.e., sedatives, anticonvulsive agents, tranquilizers and sleep-inducing agents.

Abstract: An improved pressure type connection on stepped thread Hydril-type tubing and casing tool joints is disclosed, wherein a secondary sealing means is included between the stepped threaded areas of the Hydril-type connector. The secondary sealing means includes an annular ring of relatively rigid, internally tenacious plastic or rubber material, which serves to contain well pressure if the metal-to-metal sealing surfaces on the pin and box members of the Hydril-type connector are damaged. With such secondary sealing rings, damaged Hydril-type connectors can still be used, without having to scrap same, or having to repair the damaged area at great expense.

Abstract: The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag. A second bag may be provided within the first bag.The invention includes a machine for making the containers continuously from sheets of material.

Abstract: A process for the preparation of a ferrite magnetic particulate for magnetic recording which comprises steps of: (1) melting a starting material mixture containing a basic component for hexagonal ferrite, a coercive force-reducing component and a glass-forming component; (2) rapidly cooling the resulting molten mixture to obtain an amorphous material; (3) heat-treating said amorphous material to form ferrite crystals; and (4) removing components other than the ferrite crystals from the material resulting from said heat-treatment:characterized in that said starting material mixture contains a glass-forming component comprising a B.sub.2 O.sub.3 component and a SiO.sub.2 component in which the amount of said SiO.sub.2 component has a value (in terms of SiO.sub.2) 0.05 to 0.8, the value being represented by a molar ratio of SiO.sub.2 /(B.sub.2 O.sub.3 +SiO.sub.2).

Abstract: There is provided a protein-free and low sodium high stability fat emulsion which comprises on a solid basis, 10 to 75% of an edible fat having an average particle size of 4 microns or less, 0.1 to 3% of an emulsifier, 8 to 20% (based on the fat) of an edible hydrated, substantially undextrinized, lipophilic starch in submicroscopic particle size, and the remainder of the solids being principally a filler. The emulsion may be either a water emulsion or a dry powdered emulsion. The emulsion is prepared by mixing the fat, emulsifier, starch and filler in water. The mixture is cooked at an elevated temperature if the starch has not been previously cooked to hydrate starch. The mixture is sheared such that the fat is divided into an average particle size of 4 microns or less and the starch is dispersed in submicroscopic form. The sheared mixture is then dried to a moisture content of 7% or less. The starch may be dispersed to the submicroscopic particle size either prior to or during the process.

Abstract: Substrates are disposed in a reaction chamber having a gas inlet and a gas outlet and a mixture gas containing at least a semiconductor material gas and a carrier gas is introduced into the reaction chamber in such a state in which a gas in the reaction chamber is exhausted therefrom. An electromagnetic field is applied to the mixture gas to ionize it into a mixture gas plasma in the reaction chamber, by which a semiconductor material is deposited on each substrate. In this case, the semiconductor material thus deposited on each substrate becomes a non-crystalline semiconductor by holding the atmospheric pressure in the reaction chamber below 1 atm and maintaining the substrate at a temperature lower than a temperature at which the semiconductor material on the substrate becomes crystallized.The reaction chamber is provided with a gas ionizing region on the side of the gas inlet and a semiconductor depositing region on the side of the gas outlet.

Abstract: Compounds of the formula ##STR1## where Z completes a bond or is a ##STR2## group; one of R.sub.1 and R.sub.2 is hydroxy and the other is hydrogen or alkyl, or R.sub.1 and R.sub.2, taken together, form an oxo group;and the remaining substituents are as defined in the specification. These compounds possess hypolipaemic properties.

Abstract: Compounds of the formula (I) ##STR1## wherein R.sub.1 is:(a) hydrogen, or C.sub.1 -C.sub.6 alkyl;(b) an unsubstituted 2-pyridyl or 3-pyridyl group;(c) a benzyl group, wherein the phenyl ring is unsubstituted or substituted by halogen, C.sub.1 -C.sub.6 alkoxy or C.sub.1 -C.sub.6 alkyl;(d) a phenyl ring, unsubstituted or substituted by one or two groups chosen from halogen, trihalomethyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkanoylamino, nitro and amino;each of R.sub.2 and R.sub.3 independently represents hydrogen, halogen or C.sub.1 -C.sub.6 alkyl;R.sub.4 represents a 2-pyridyl, 3-pyridyl or 4-pyridyl group, unsubstituted or substituted by C.sub.1 -C.sub.6 alkyl;and the pharmaceutically acceptable salts thereof are disclosed. The compounds have activity in the gastroenteric system, particularly anti-ulcerogenic and gastric anti-secretory activity.

Abstract: Tool for vertically lifting and maneuvering objects such as utility access covers. A pair of spaced-apart ring assemblies including inner and outer concentric independently rotatable rings are connected to each other by a first connecting member which extends over the object. The object is engaged to the tool by hooks suspended from the first connecting member. The ring assemblies are also connected by a second connecting member which is spaced from the first connecting member by a distance sufficient to permit a lever to be engaged to both connecting members so that when a force is applied to the lever, both connecting members move causing simultaneous rotation of the inner rings while the outer rings remain stationary, to vertically lift the object into the space between the ring assemblies. The object while suspended between the ring assemblies is then transportable by rotation of the outer rings with respect to the inner rings.

Abstract: In a method and an apparatus for continuous winding-up of a material web on roll spindles where the web is supplied continuously and is arranged to be cut off in conjunction with roll spindle shiftings, a cutting off knife (17) is mounted in a holder (10) together with a brush (16) and a pressure roller for transferring the web onto a new roll spindle. The invention also includes a microcomputer-regulated control system and a gear drive housing (44) which is designed to be rotated together with the roll holder (5) during spindle shiftings.

Abstract: Archival container construction materials including paper, paperboard (both solid fiber board and corrugated board) and, optionally, water-impermeable plastic, in both single- and multi-layer arrangement are disclosed. The container material provides an inner layer consisting of non-buffered, substantially pure alpha-cellulose and an alkaline size. Outer layers of the container material comprise alpha-cellulose, an alkaline buffer and an alkaline size. Optionally, the inner liner and the outer layer(s) are separated by a water-impermeable plastic layer, e.g., polyester film.

Abstract: Novel sulfonate derivatives represented by the formulaR.sub.1 SO.sub.3 CH.sub.2 CO(CH.sub.2).sub.n R.sub.2act to inhibit esterases and chymotripsin and are useful as antilipemic agents, anti-inflammatory agents, immunity controlling agents, etc.