Abstract: A novel substituted nigrosine dye represented by the formula D-R).sub.n wherein D is a nigrosine dye residue, R is C.sub.3 -C.sub.18 alkyl or alkenyl which may be straight or branched, or aralkyl or aralkenyl which may have a C.sub.1 -C.sub.8 alkyl substituent on the aryl moiety, the R in each case being the same as or different from the others, and n is a number of 1 to 4. The novel nigrosine dye is prepared by reacting a corresponding unsubstituted nigrosine dye with an alkyl halide, alkenyl halide, aralkyl halide, or aralkenyl halide, or with a mixture thereof, to form the substituted nigrosine dye. The novel dye has a high solubility in and compatability with organic solvents and/or resins and is oleophilic and stable and particularly useful for ink compositions and as a charge control agent for the toners of electrophotographic or electrostatic image developers.

Abstract: A low-to-high pressure, fusion-welding, press mechanism for vertical packing machines which seals packed products using packing film. The press mechanism comprises a cylinder, a cylinder rod, a circular disc, a plurality of pairs of levers and a pair of sealing substrates having a pair of sealing blades, these members being interconnected to each other to fusion-weld packed products with said pair of sealing blades under desired sealing pressure.

Abstract: In CO-air filters the poisonous carbon monoxide contained in the air to be breathed is brought into reaction with atmospheric oxygen on the surface of a CO catalyst and thus removed. The Pt-catalyst used to date as air filter material offers diminished protection when humidity levels in the air are high. By being subjected to an extra impregnation with vanadium compounds the capacity of the palladium catalyst to catalyze the oxidation of CO under high humidity is increased remarkably. Effectiveness is even increased under dry conditions.

Abstract: Arrangements for coating substrates, comprising a hollow cathode around the substrate with at least two sputtering zones with the proportion between the sputtering performances in the zone being adjustable, to obtain a more uniform coating also of lateral surfaces formed by steps on the substrate.

Abstract: A contactless non-destructive technique for measuring at least one surface property of a first semiconductor material surface utilizes an electrically conductive interdigital transducer and a metal plate defined on a piezoelectric material. The metal plate has a window therein and the semiconductor material is positioned with its first surface over the window and facing the exposed piezoelectric material of the window. A radio frequency pulse is applied to the interdigital transducer to generate a surface acoustic wave on the piezoelectric material. This produces a transverse electric field which extends above the surface of the piezoelectric material and propagates across the window. This field acts as a probing field in the semiconductor material at the surface facing the piezoelectric material, and due to acousto-electric interaction a transverse acousto-electric voltage is produced.

Abstract: The ammonia, hydrogen cyanide, and hydrogen sulfide scrubbed out of crude coke oven gases are decomposed and combusted, and sulfur is recovered therefrom in a Claus process, while using preheated air and effecting the decomposition and oxidation at temperatures varying through 100.degree. C. at most, and keeping the temperature level of the entire process above 100.degree. C. and allowing the residual gases to cool below this temperature only after the separation of sulfur, and controlling the air supply to maintain the ratio of H.sub.2 S and SO.sub.2 in the process gases above 2.

Abstract: An apparatus for letting out skins comprises behind the parting sword a needle bar movable up and down which is movable in addition parallel to the drawoff direction of the skin through a drive mechanism. Together with a supporting plate movable up and down, the needle bar acts on the skin section already let out so that it is held taut and flat.

Abstract: A radiation coloration resistant glass is disclosed which is used in a radiation environment sufficient to cause coloration in most forms of glass. The coloration resistant glass includes higher proportions by weight of water and has been found to be extremely resistant to color change when exposed to such radiation levels. The coloration resistant glass is free of cerium oxide and has more than about 0.5% by weight water content. Even when exposed to gamma radiation of more than 10.sup.7 rad, the coloration resistant glass does not lose transparency.

Abstract: A corridor spanned or suspended between horizontal support members such as girder members in structures such as those of buildings, ships, etc. so that operators can walk or carry out operations on the corridor.The corridor comprises a main corridor and a sub-corridor, connected to the main corridor to adjust the length of the corridor.This corridor can be easily incorporated in and moved from structures to be built, easily transported and housed in narrow spaces and mounted on different length of places by one unit of the corridor.

Abstract: A carriage is reciprocately movable along the length of a pair of eversion tubes which carry pantyhose legs in an everted condition. The carriage carries two pairs of grippers which are engageable over each pantyhose leg and on side fingers on each tube. The grippers are brought to a partially closed position where they do not touch the fabric while the carriage is slowly moved along the tubes to scan the exterior of the fabric. A detection point is provided on the fabric which is detectable by a probe that operates a mechanism for fully closing the grippers. Further movement of the carriage with the grippers closed causes sliding of the fabric on the tubes. Even with the detection points misaligned on the tubes, the grippers will close at the appropriate instant to concurrently bring both legs of the pantyhose to the ends of the tubes.

Abstract: The invention relates to a device for tilting and turning coke-oven doors for the purpose of maintenance and repair. It comprises a door-receiving support frame with upper guide rollers, which are guided in a guide rig having parallel rail pairs. At the lower end of the support frame a firmly connected drive device engages, which is movable on a raised horizontal rail track. The drive device pulls the support frame from the vertical into the horizontal position and pushes it back into the vertical position. The guide rig includes a vertical part and an inwardly extending part contiguous thereto. The center between the guide rig on the coke side and the guide rig on the machine side is interrupted. The rail pairs end at the bottom in sturdy stops for the guide roller. The invention is thus an accident proof tilting device, with sufficient space for repair purposes being available on the working platform.

Abstract: An adaptation cartridge comprises a firing pin casing which is screwed into a cartridge chamber or cartridge chamber tube and is secured against rotation by a radially displaceable slide. The cartridge is used for training on a gun having a subcaliber barrel adapter.

Abstract: The feature characterizing the method is that in an operation following the finishing of the track supporting structure, the mounting bodies are machined in a way such as to correct the structural inaccuracies caused by manufacturing tolerances of the prior art steel and concrete construction, to obtain an accurate mutual position of the equipment parts at the location of attachment. For this purpose, preferably, the mounting bodies are provided at the securing locations with bores and countersinks which are accurate in all the coordinates and correspond to the bolts or bores of the equipment parts, to finally mount these parts by means of bolts and spacer bushings. In supporting structures of steel tracks, mounting bodies accessible from both sides are preferably employed.

Abstract: Emitting and receiving antenna system for accommodating all bands and frequencies and for operating selectively adjustably in resonance at a given emitting or receiving frequency, formed by one antenna component or two counterpart antenna components, each component containing therewithin a variable inductor and a variable capacitor, a drive mechanism for shifting the shiftable inductor part relative to the fixed inductor part of each such inductor for varying the inductance and conjointly for shifting the shiftable capacitor part relative to the fixed capacitor part of each such capacitor for varying the capacitance, and a control mechanism for controlling the drive mechanism for selectively shifting the corresponding shiftable parts conjointly for achieving selective antenna resonance tuning at an exact point corresponding to the desired operating band and frequency, such as with the shiftable inductor part and shiftable capacitor part of each antenna component being connected together for common shifting mo

Abstract: A guide device for a hand circular saw or the like has a guide plate with a non-slip coating on its lower face to make contact with the work, and a foot plate running along the guide plate and carrying the saw or the like thereon. The foot plate has a recess thereon which enables it to completely straddle the guide plate while giving lateral guidance. In the recess there are spring loaded rollers or shoes pressing on the guide plate.

Abstract: A semiconductor device for converting light into electric energy comprises at least one layer of amorphous silicon with a surface thereof which is intended to be exposed to light covered by a cover layer of polycrystalline silicon. The use of the polycrystalline silicon increases the current yield in the blue light range of the solar spectrum. A method of producing such a semiconductor device is also disclosed.

Abstract: For the vapor deposition of layers of oxides, nitrides, oxynitrides and carbides by ion plating, the surface to be coated is electrically insulated or mounted under insulation and during the coating an electric plasma is maintained in front of the surface to be coated, in such a way that the ion incidence density on the substrate is 0.5 to 2 mA per cm.sup.2 and the surface charges to a potential of -5 to -60 volts. Thereby especially hard and firmly adhering layers are obtained.

Abstract: A ventilating system includes a high frequency controlled breathing gas source in HFJV operation, wherein the exhaled gas is removed through an outlet line through which a flush gas is conducted, is improved to permit a determination, under high frequency ventilation, of both the final expiratory CO.sub.2 concentration and the basic pressure building up in the lungs (the lung-internal PEEP). To this end, the control device is in addition connected to a flush gas valve provided upstream of the breathing gas supply device, and designed to intercalate a measuring interval after a sequence of breathing gas pulses, during which interval the breathing gas valve and the flush gas valve are closed. A system of measuring the breathing gas valves is provided in the outlet line and it is actuated during the measuring interval to perform the measuring operation.