摘要:
A process for preparing metal-free phthalocyanines which can carry up to 16 halogen atoms, cyano groups, carboxyl groups, sulfo groups, C.sub.1 -C.sub.18 -alkyl groups and/or aryl radicals as substituents by reductive cyclization of ortho-phthalodinitrile substituted ortho-phthalodinitriles or mixtures thereof comprises effecting the cyclization in C.sub.2 -C.sub.4 -alkylene monoglycols, oligoglycols or polyglycols, their mono-C.sub.1 -C.sub.4 -alkyl or -aryl ethers or their mixtures in the presence of an aromatic compound of the formula I ##STR1## where the substituents X can be identical or different and each denotes hydroxyl, mercapto, amino or C.sub.1 -C.sub.6 -alkylamino, the substituents Y can likewise be identical or different and each denotes halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkoxycarbonyl, m is from 1 to 4 and n is from 0 to 5, subject to the proviso that m+n .ltoreq.6, and the benzene ring A can be fused to a further benzene ring,and of an inorganic base.
摘要:
An adapter for connecting, in particular, respiratory implements such as tubes, tube extensions, filters, breather bags, or artificial noses to a tube having a particularly conically tapered connector. the adapter has a clamping section that may be fixed to the connector in a frictionally engaged manner. The clamping section of the adapter may be radially expanded from a first clamping position in which the inner diameter of the clamping section is less than the outer diameter of the connector into a second release position in which the inner diameter of the clamping section is greater than the outer diameter of the connector.
摘要:
A pipe-end processing tool and a pipe-end processing system for it. A guide roller is used which runs along the inside peripheral surface of a pipe to be processed and as a result keeps an implement designed to machine an outer edge bezel of said pipe at a constant radial distance from the inside peripheral surface. As a result residual wall thicknesses constant over the full pipe periphery are generated even when the pipe is not rigorously circular, for instance illustratively oval.
摘要:
An adapter for connecting, in particular, respiratory implements such as tubes, tube extensions, filters, breather bags, or artificial noses to a tube having a particularly conically tapered connector. the adapter has a clamping section that may be fixed to the connector in a frictionally engaged manner. The clamping section of the adapter may be radially expanded from a first clamping position in which the inner diameter of the clamping section is less than the outer diameter of the connector into a second release position in which the inner diameter of the clamping section is greater than the outer diameter of the connector.
摘要:
A pipe-end processing tool and a pipe-end processing system for it. A guide roller is used which runs along the inside peripheral surface of a pipe to be processed and as a result keeps an implement designed to machine an outer edge bezel of said pipe at a constant radial distance from the inside peripheral surface. As a result residual wall thicknesses constant over the full pipe periphery are generated even when the pipe is not rigorously circular, for instance illustratively oval.
摘要:
A tapping apparatus having a drilling device for producing an outlet on a medium-carrying pipeline, on which a tapping fitting is arranged, and having a drive and advance device for driving and advancing a drilling tool is proposed, a coupling and uncoupling mechanism being arranged for coupling and uncoupling the drive device to and from the advance device for the drilling tool. The tapping apparatus is of modular construction, can be dismantled into individual parts and is easy to operate.
摘要:
A smoke screen device for rooms includes a container to hold a smoke fluid that produces smoke when vaporized, a heating device for heating and vaporizing the smoke fluid, and an opening in the container that allows the smoke to be given off into the open. The heating device is a pyrotechnic heating cartridge having a heating agent, a pyrotechnic detonating agent, and a casing that encloses the heating agent and detonating agent. Heat produced during combustion of the heating agent is given off onto the smoke fluid through a wall of the casing. A pressure cartridge including a compression agent and a pyrotechnic detonating device is provided in the container to support propulsion of the smoke produced. The pyrotechnic detonating device may be electrically ignitable via an electrical cable coupled to an energy supply and sensory mechanism which themselves are connected to an alarm, so that when tripped, the alarm causes the detonating device to be ignited. The pyrotechnic compression agent and the heating agent may be contained in a common casing.