SU619793A1 - Two-way sighting attachment - Google Patents

Description

(54) BILATERAL VISATION PACKAGE

The invention relates to the field of geodetic instrumentation and is intended for geometric leveling. Levels are known in which the eye on the telescope is located on top of the lilj. Also known is a two-sided sighting attachment for a fc perimeter optic telescope, a holding body, inside of which are two optical alignment wedges and an optical system consisting of two mirrors connected between each other at a right angle with a glass square | 2j. However, the known bilateral sighting attachment allows only separate counting by two laths. The aim of the invention is to provide simultaneous counting on two rails / which are not in alignment with the level, which, in turn, increases the accuracy and productivity of the geometric leveling baths, especially when working on unstable soils. This is achieved by the fact that in a well-known nozzle, a double-sided sight, and for a level with a periscopic telescope, which contains a housing, inside which an optical system and an alignment wedge are located, and attached to the housing and its device, its optical system is designed as a rotatable rectangular prism with a rattle of reflective surfaces, one of which is located at an angle of the side face perpendicular to the sighting axis of the telescope. The aiming device is designed in the form of a screw and a cartridge with a guide. To rotate the front angle prism around a vertical base, the nozzle body contains bearings. FIG. 1 shows a general view of the described nozzle, - fig. 2 is the same, side view, in FIG. 3 - section of the nozzle along the line AA; in fig. 4 is a general view of a prism with three reflective edges. The bilateral sight attachment includes a body I, a bar 2, a prism 3, a plate 4, conical supports 5, a micrometer screw 6, a cartridge 7, protective glasses 8 and 9, optical WEDGES 10 and 11, a frame 12, cylinders. 15, cap 16, rims 17 and 18 of protective glasses, threaded rings 19 and 20, lock nuts 21, screws 22 and 23.

The prism 3 has three reflecting faces, it is glued to the plate 4 and with the help of a micrometer screw 6 it rotates on conical supports 5 around a vertical axis,

The telescope of a level with a nozzle gives two images: one straight, the other obratnom and respectively two lines of sight. The prism changes the direction of the line of sight by 180f

The author of the duction level with a brigade, a double-sided sight, must satisfy the following main requirement {(ovayy m.:

The axis of the installation circular level must be Garb parallel to the vertical axis of rotation of the level.

The horizontal thread of the grid of the viewing tube must be perpendicular to the vertical axis of the level.

The line of sight of the pipe should be stabilized with a compensator in the same position.

The line of sight within the stabilization angles must be horizontal.

The line of reverse sighting should be parallel to the line of direct sighting.

The edge of the prism at the apex of an angle of 45 must be parallel to the axis of its rotation.

The axis of the drip prism should: be parallel to the vertical axis of the level.

A level with a nozzle that meets the requirements, in the working position, there will be two horizontal lines, located along the eidcoTe distance A.h between them

Working with the {"jewel equipped with a nozzle, is starting to hover

on two slats with the help of targeting devices of the level and nozzle and at the same time taking readings on the slats. At the same time, Lh counts are obtained on the black side of the rear rail and on the red side of the front rail. To control the leveling, take the readings on the other side of the rails, turning the tube of the level around its vertical axis by 180, Get the readings Ak - on the red side of the rear rail and HF on the black side of the front rail. Excess is calculated from the expression:

H "|. () - ()

and the control for determining the excess is carried out on the basis of the Foil 1:

(Ak-Ah) - (Bk-Vi) .2d | 1

Claims (2)

Invention Formula A double-sided attachment for Gnivelier with a periscope telescope, comprising a housing, inside of which there is an optical system with a leg and wedges, an aiming device mounted on the case (characterized in that, in order to ensure simultaneous counting by two rails, the cim is not in the alignment with the level) rectangular prism1 with three reflective surfaces one of which is located at an angle of a face perpendicular to the sighting line of the telescope. Sources of information taken into account in the examination: 1. Kochetov F.G, Levels with a self-aligning line of sight. M., bowels, 1969, p. 101. 2. USSR author's certificate No. 2623237, cl. & 01 On 9/00, 1970.