Indicator and measurement device of the variations of an electrical or physical intensity. (Machine-translation by Google Translate, not legally binding)

摘要

Apparatus for measuring and measuring the variation of a physical or electrical intensity, comprising a device for transforming the variations of a physical or electrical intensity into displacements of a dividing wall, one of whose edges is parallel to the interior surface of a translucent quadrant, at a short distance from it separating this divider partition inside the device in two zones in one of which, at least, is placed an electric bulb, so that when the partition divider is displaced depending on the variations of physical intensity or electric, said edge determines on the quadrant two contrasted areas of complementary variable surfaces, the distance between said edge and the surface of the quadrant being arranged in such a way and the thickness of this edge that the indicator visible on the dial is constituted by the separation between these two luminous zones. (Machine-translation by Google Translate, not legally binding)