SU547645A1 - Device for fixing a geodetic mark - Google Patents

Description

(54) DEVICE FOR FIXING GEODESIC

SIGNS

adapter 9 is installed corrugated gland 14, the whole device is placed in the casing 15 of the well, in the mouth of the cat-cut a diaphragm is installed,

An anchor with a drill bit is mounted on the ground as follows

Two pins are inserted into the mounting holes 12 of the diametrically opposite sides of the pins 13, which pivotally connect bark 1 and string 2 to the hollow drill pipe 7. Assembled, put the bark into the casing of the well and drill below the bottom. To bring the hollow drill pipe to a strictly vertical position, there is a spherical thickening 8 at its end, with which the floor of the drill pipe rests on the conical recess of the core. A diaphragm is installed at the mouth of the casing to fix the hollow drill pipe in a predetermined position. After setting the device to the specified position

measurements are made. Upon completion, the device is dismantled in reverse order.

Forglula Invention

Claims (1)

1. A device for fixing a geodetic mark containing a mark with a mark, a string, a reservoir with liquid, a float and a casing, characterized in that, in order to simplify it, the measles is made in the form of a drill bit, which is pivotally connected through an adapter with a hollow drill pipe. 2, device pop. 1, characterized by the fact that the articulation of the core with the hollow drill pipe is made in the form of a concentric protrusion, with pins-studs reinforced with diametrically opposite walls of the core and spherical thickening resting on the conical notch of the core. ten : s 8