Improvements in the construction of measuring instruments, especially barometers and altimeters, that work like this (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the construction of measuring instruments, especially barometers or altimeters that work like this, in which the measuring instrument makes the measurement indications in cooperation with a spring, characterized in that the spring cooperates with the measuring device, for example with the capsule or membrane capsules (11, 12, 13), is a spring (3) whose opposite force becomes smaller when said spring is increasingly deformed when increasing the draft acting on it on the side of the membrane, and vice versa. (Machine-translation by Google Translate, not legally binding)