Abstract: A pyrometer is located beneath a soldering path downstream of a flow nozzle and is shielded by a metal plate which extends transversely relative to the soldering direction and obliquely upwardly toward the path. The pyrometer is connected to a limit value generator which responds when the limit value is exceeded.

Abstract: An observation and guide beam apparatus, referred to as a spotter scope, has in addition to a laser guide beam generator an optical daytime channel for daytime spotting or viewing and a day- and nighttime channel for both night and day observations. These channels are harmonized relative to the laser guide beam by the same automatic axial harmonizing device. Further, the day and night channel includes a heat imaging device that is internally harmonized on a long term basis. The scope also has an ocular arm. This combination is especially suitable for use in a weapons system using remote controlled flying bodies, for example. The scope can use any available type of detector or detector technology.

Abstract: In a glow element with a glow tube (30) closed at the outer end, in which there at least two series-connected resistors (10, 11), whereby one of the at least two resistors being conductively connected by one end to the closed end of the glow tube and the opposite end of the series-connected resistors being connected to an internal pole (9) projecting into the glow tube from the other end thereof, in order to permit an external wiring of part of the resistors in the glow element, the internal pole (9) has a tubular construction and at least one electrical conductor (8) is passed through the internal pole and is connected to a junction (12) of the at least two resistors (10, 11).

Abstract: A spider for a Hooke's joint typically includes a center piece and four pins radiating therefrom. The pins are all located in a plane which intersects the rotation axis of the spider. Between adjacent pins, the center piece has a transition section, which is machined to define a concave fillet. In the preferred form, the fillet is shaped to define an arched, toric outer surface, and particularly as viewed along a longitudinal cross section along the rotation axis of the center piece, the outer surface comprises two partially cylindrical fillets symmetrically located at opposite sides of the plane through which the axes of the pin pass. These two fillets are machined by a tool that moves longitudinally along a path parallel to the plane of the pin axes for machining and the tool is swung around a swivel axis parallel to the plane of the pin axis for forming the fillets symmetrically of the plane of the pin axis.

Abstract: Mixtures which are liquid at room temperature, have a long shelf life and can be activated by heat and which comprise(A) polyols and/or polyamines, component (A) having a viscosity of less than 100 Pa.s at room temperature, the OH number being less than 112 and the mean functionality of the starting materials being from 1.1 to 6, and(B) polyisocyanates which are dispersed in (A), are stabilized to (A) as a result of a phase-separating deactivation at the surface of the dispersed particles, and are present in an amount such that there are from 0.1 to 2 equivalents of the total isocyanate present in the polyisocyanate per equivalent of hydroxyl or amino groups of component (A),are particularly useful for contact adhesives.

Abstract: In a process for transmitting items of information between devices of an indirectly controlled exchange system via time division multiplex (TDM) channels, with multiple repetition of the items of information, the items of information comprise a plurality of bytes including a number byte which numbers the relevant item of information. The items of information are transmitted by means of buffer stores and multiplexers. The item of information also include a acknowledgment bytes which acknowledge the correct reception of previously transmitted items of information. The reception of acknowledgement bytes is also evaluated as a signal that the TDM channel previously used to transmit the acknowledged information has been released for the transmission of a further item of information.

Abstract: A semiconductor component is described which includes two zones of opposite conductivity type having a pn junction therebetween, and in which one zone is formed of a monocrystalline semiconductor substrate body and the other zone is produced in the semiconductor body by a doping process, such, for example, as by an implantation or diffusing process. Before the diffusion or implantation takes place, a zone is created at or near the substrate surface which has a disturbed crystal lattice. The diffusion or implantation then takes place through the disturbed zone. A process for producing such a semiconductor component is also described.The other zone may also be produced after the disturbed crystal lattice is produced in the portion of the substrate body which portion will later become the second zone.

Abstract: Disclosed is an apparatus and machine for center drilling rod or rod-like materials, and a method for simultaneous center drilling of both ends of a rod or rod-like materials by using the disclosed apparatus and machine having a frame supporting a first centering cone mounted stationary to said frame, a second centering cone movably mounted to said frame for movement along an axis extending between said first and second centering cones, an adjustable and movable workpiece rest mounted to said frame for supporting a rod-like member along said axis, first and second center drilling means each movably mounted to said frame and each adjacent to and cooperating with a centering cone for center drilling of the ends of a rod-like member, adjustable sensing means for controlling the extent of center drilling at each end of a rod-like member and means for hydropneumatic movement of said movable centering cone along said axis.

Abstract: Isoquinolines of the formula ##STR1## wherein R.sup.1 is H or alkyl of 1 - 4 carbon atoms, R.sup.2 is H and R.sup.3 is OH or R.sup.2 and R.sup.3 collectively are a C--C bond, and physiologically acceptable acid addition salts thereof have anti-depressant activity and can be prepared by solvolyzing or hydrogenolyzing a compound of the formula ##STR2## or an acid addition salt thereof, wherein R.sup.4 is R.sup.1 or R.sup.6, R.sup.5 is OR.sup.7 or, when R.sup.4 is R.sup.6, R.sup.3 ; R.sup.6 and R.sup.7 are radicals which can be split off solvolytically or hydrogenolytically and R.sup.1 and R.sup.2 are as above; and the optional step of dehydrating a resulting carbinol (R.sup.2 is H, R.sup.3 is OH) and/or treating a resulting compound (R.sup.1 is H) with a N-alkylating agent and/or converting a resulting base to a physiologically acceptable acid addition salt by treatment with and acid.

Abstract: Hot-melt pressure-sensitive adhesive composition based on a rubbery block copolymer of a monovinyl-aromatic compound or monovinylidene-aromatic compound and butadiene.The composition contains a selectively hydrogenated radial block copolymer with terminal polymer blocks of the monovinyl- or mono-vinylidene-aromatic compound and, in the middle position, butadiene-based polymer blocks which had a 1,2-vinyl content of from 30 to 70 per cent by weight prior to hydrogenation. The compositions may be used, in particular, for the production of self-adhesive materials.

Abstract: Pressure-sensitive adhesives are manufactured by reacting a mixture ofA from 10 to 90% by weight of a polyol having a molecular weight of from 300 to 8,000 and a hydroxyl number of from 20 to 85 andB from 5 to 60% by weight of an amorphous thermoplastic tackifier resin having a softening point of from 40.degree. to 140.degree. C and a molecular weight of from 200 to 7,500, withC from 5 to 30% by weight of a polyisocyanate masked with CH-acidic compounds,The percentages by weight being based on the total weight of components (a), (b) and (c).

Abstract: New bis-salicyloyl-dicarboxylic acid dihydrazides are stabilizers for polyolefines. They are prepared by reacting a salicylic acid hydrazide with a dicarboxylic acid chloride or a dicarboxylic acid diester.

Abstract: A new composition of nickel salts of hydroxybenzoic acids and polyols are used as stabilisers of polymers.

Abstract: Two successive ordinal toothed counter wheels are connected by toothed transfer means to make a tens-transfer once during each revolution of the counter wheel of the lower order. The teeth of the counter wheels and of the transfer means are cut out and hollowed so that the teeth are resilient and dampen impacts thereon during the transfer operation.