Abstract: A laminograph including, a radiation source for generating radiation towards a subject, a radiation surface sensor device with a two-dimensional resolution, fitted opposite to the radiation source for detecting the radiation from the radiation source which has passed through the subject, a scanning device for moving the subject to take a plurality of different positions between the radiation source and the radiation surface sensor device and for scanning the subject in each of the different positions by the radiation from the radiation source.

Abstract: An internal combustion spark ignition piston engine has a main combustion chamber and an auxiliary combustion chamber connected by a torch opening. A main carburetor supplies a lean mixture to the main combustion chamber and an auxiliary carburetor supplies a rich mixture to the auxiliary combustion chamber. A fixed orifice is provided in the auxiliary carburetor, instead of a movable throttle valve, the orifice being smaller than the torch opening but large enough to allow air flow at subsonic velocities when the engine is operated under idle conditions. A throttle valve in the main carburetor controls the speed of the engine but the fixed orifice limits the amount of rich mixture supplied to the engine. A fuel compensator system is provided for each of the carburetors to control the air-fuel ratio of the mixture produced by each, in response to engine operating conditions, including idling, high power and deceleration.