Abstract: A suspension arrangement for directional equipment. The arrangement includes a body that supports the equipment and that supports a drive motor with a driving belt sheave, a driven belt sheave coupled to the directional equipment and a drive belt running between the belt sheaves. To prevent random or periodic movements in the mounting of the supporting body being transmitted to the equipment, a stabilizing unit including two guide rollers mounted at a fixed distance from one another on a displaceable holder, is designed to act via the guide rollers upon the belt in the space between the driving belt sheave and the driven belt sheave.

Abstract: A suspension arrangement for directional equipment. The arrangement includes a body that supports the equipment and that supports a drive motor with a driving belt sheave, a driven belt sheave coupled to the directional equipment and a drive belt running between the belt sheaves. To prevent random or periodic movements in the mounting of the supporting body being transmitted to the equipment, a stabilizing unit including two guide rollers mounted at a fixed distance from one another on a displaceable holder, is designed to act via the guide rollers upon the belt in the space between the driving belt sheave and the driven belt sheave.

Abstract: A sight including an infrared camera. A first admission aperture receives an incident image. The position of the first admission aperture is rotatable vertically and sideways. A mirror arrangement is rotatable about a common axis for derotation of the incident image. An output aperture is fixed with respect to the infrared camera. The incident image passes through the output aperture to the infrared camera.

Abstract: The invention relates to super-charged combustion engines in which a compressor is arranged in the engine inlet system and driven by a turbine in the engine exhaust system, a duct is provided for by-passing the turbine to the exhaust outlet, and a valve is provided to control exhaust gas flow through the by-pass duct and turbine. The invention provides exhaust gas pressure transmitting means connected to actuating means incorporated in the valve, said actuating means operating in dependence upon the pressure of the exhaust gas to control its flow through the turbine and the by-pass duct in order to limit the speed of the turbine and the compressor when a predetermined pressure is exceeded, whereby pressure in the engine inlet system decreases with increasing engine speed, at least within an upper r.p.m. range of the engine.