Flight trajectory and observation theodolite

In a flight trajectory measuring and observing theodolite composed of a stand portion and a measuring portion containing two housings arranged in spaced relationship from one another upon a yolk element and serving for the mounting of optical devices, especially a telescope and a telescopic sight, a stand element of the stand portion together with the measuring portion being rotatable in relation to a socket element which is non-rotatably mounted at a foundation about a vertical azimuth rotational axis and the telescope along with the telescopic sight are pivotably mounted about a common horizontal elevation tilt axis, the improvement which comprises:

• the stand portion being composed essentially of the socket element, the stand element and an intermediate element;
• a leveling stand operatively connected with the stand portion and arranged at the center thereof;
• said stand portion and said leveling stand forming a structural unit;
• said leveling stand being mounted at one end upon a support element non-rotatably connected at the foundation and being radially adjustable and fixable in position for aligning the vertical azimuth rotational axis in relation to the support element;
• the other end of the leveling stand having mounted thereat a roller bearing ring which is rigidly connected for rotation with the intermediate element of the stand portion;
• said roller bearing ring essentially being mounted at a base ring rigidly connected with the leveling stand;
• and
• the measuring portion constructed as said structural unit being mounted by means of a support body attached to the yolk element upon the roller bearing ring and for aligning the horizontal elevation tilt axis being radially adjustable and fixable in position in relation to the roller bearing ring.