Abstract: The invention is related to gages to measure incline angles of moving and immobile objects and can be used in incline angle gages in such transportation vehicles as airplanes and ships (if a phosphorus scale can be applied to a closed loop clear tube) as a standby device to display pitch and roll angles (FIG. 5, FIG. 6, FIG. 7, FIG. 8). The purpose of this invention is an effective measurement of incline angles in stationary and dynamic objects in a wide range (0°-180°, 0°-360°). Faster measurement is required to improve stated parameters of the general purpose liquid angle indicator. It is achieved because liquid, an air bubble or indicating ball within the semicircular and round clear tube, subjected to gravitational forces, can display measured angles relative to the scale on the graduated clear tube without being in a horizontal position.

Abstract: An airlessly sealed vial includes an interior cavity filled with at least one liquid. At least one sealing cap is provided, which seals closed an opening into the interior cavity. The vial also includes means associated with the sealing cap and/or the interior cavity for changing the volumetric liquid containing capacity of the interior cavity in accordance with volumetric changes in the liquid contained in the vial. The means may be a moveable or flexible wall at least partly defining the interior cavity and/or a compressible member included in the interior cavity.