Indicator showing thermal emission of heating bodies - has variable length spacer made of several different sized elements

摘要

The indicator is for determining the relative thermal output of heating bodies by evaporation of a measurement liquid enables the length of the hollow body between the locking bracket (12) and the rear wall (1) of the housing to be made variable. This is achieved by making the hollow body from a number of steel rollers (43) threaded over the shaft of the fixing screw (10). The steel rollers may be of different axial lengths. The fixing screw (10) projecting from the housing screws into the locking bracket (12), which is made of steel plate, so as to clamp the indicator device between two ribs of a heating body. A casing (41) welded onto the outside of the clamping bracket encloses the end (10a) of the screw shaft.