Abstract: An epoxy resin composition, including epoxy resin, cyanamide as a hardener, and 2-methylimidazole or 2,4-ethyl-methylimidazole as an accelerator in hardening the epoxy resin.

Abstract: A method for tapping a furnace contains a tappable melt of silicon dioxide to be reduced to silicon with carbon, which comprises providing a graphite tap pipe on the furnace, and electrically heating the tap pipe to cause liquid silicon to flow out of the pipe, and a device for carrying out the method.

Abstract: To cool the diaphragm of a spectral discharge lamp having an anode and a cathode between which a discharge is established, which discharge is controlled by the diaphragm, a fluid supply and removal duct is connected to a cooling circuit in or on the diaphragm structure to supply, for example, water to cool the diaphragm. The tube or bulb of the lamp may be in form of a jacketed enclosure through which cooling water is conducted, preferably in the same supply and removal circuit as that for the diaphragm structure.

Abstract: An internal combustion diesel engine has a fuel injection means for injecting fuel directly into one or more combustion chambers. Each combustion chamber has a first air-intake duct for supplying air to the combustion chamber, which first duct is designed as a swirl duct. A second air-intake is associated with each combustion chamber and is connected in parallel with the first duct for supplying an increasing quantity of substantially swirl-free air to the combustion chamber in response to increasing engine speed.

Abstract: To provide a continuous spectral output within the visible right range, particularly for spectroscopic and photometric purposes, the lamp has a fill of nitrogen and xenon mixed of N.sub.2 : Xe of 6:1 to 1:1, by volume, with an overall filling pressure in the range of 50 to 200 mbar, preferably at a mixing ratio of 4:1 with an overall fill pressure of 100 mbar.

Abstract: A process for the production of carbon dioxide absorption agent pellets for respiration equipment is carried out using a moving conveyor having a surface with shaped depressions therein and finely ground lime is continuously added with water as it is moved through a slaking zone to slake the lime and subsequently the slaked lime is continuously kneaded as it is moved through a moving zone to form a pasty mass, the pasty mass being pressed into the shaped depressions of the conveyor, and thereafter drying the material in the shaped depressions to form carbon dioxide absorption pellets, and subsequently ejecting the pellets from the depressions.The reaction temperature of the mass maintained in the slaking zone is over 60.degree. C., and in the kneading zone it is maintained below 80.degree. C. The process is characterized by the use of electric conductivity of the mass to regulate the mass throughput, and the viscosity is used as a measurement to regulate the quantity of water which is added to slake the lime.

Abstract: A gas discharge lamp is disclosed which has a generally straight, tubular configuration and exhibits an approximately constant irradiation power along a greater portion of its length than previous lamps. This feature is achieved by forming the radiation body of the lamp into three sections along its length, a central sectors and two end sectors, wherein the central sector has different cross section than the two end sectors. In one embodiment, the central sector has a larger cross section than either of the end sectors.