SU27475A1 - A device for determining the horizontal position using a sighting on a graded rod - Google Patents

Description

In the proposed device, related to the type of devices for determining horizontal strand, a hair was applied in the field of view of the tube, connected by means of gears with the movement of the tube in a vertical plane, with the aim of obtaining and crossing it with a rangefinder circle a point for combining with a zero graded slats designed to read on it the value of the horizontal path in the appropriate scale.

In FIG. 1 shows a side view of the proposed device with a partial section; FIG. 2 is a section on an enlarged scale along the line AB in FIG. one.

The proposed instrument is connected to a theodolite or a kipregel as follows. The axis 9 of the JO pipe of the theodolite enters a tightly fixed tube in a rack / with a fitted bevel gear 2 {FIG. 1) interlocking with gear 3, the sleeve of which is passed freely in the transverse direction through a round hole in the axis 9 and provided with a through axial hole of a tetrahedral shape with a rod 4 passed through it, of the same section, placed with a sharpened end in a bearing 7 mounted on the oculus re-

on the rod 4 there is a cylindrical gear 5, which engages with the gear ring 6, which rotates on the mandrel (7) of glass / 2 with diametrically perpendicular risks drawn, and on the ring 6, in diameter 6, the hair of J4 is drawn. When the JO pipe rotates in the vertical plane, the gear 3 rotates relative to the fixed gear 2 together with the shaft 4, which, by means of the pinion 5 sitting on it, turns the gear ring about with the reinforced hair M at the same angle as the pipe turned. as the ratio of the number of teeth on gear x 2, 3.5 and 6 is such that when you rotate the pipe 360 ° in a vertical plane, ring 6 will rotate the same degrees as well. The distance measuring threads in the JO pipe are replaced by the rangefinder circle K) l3, which is cut into glass 12. Coupling The gearing should be such that with the horizontal theodolite tube, the hair J4 was also horizontal and aligned with the horizontal drawing on the glass J2.

In order to determine the horizontal position between two points of the terrain, the rail made in the usual way is placed horizontally on a special

tripod and perpendicular to the pipe axis of the tool, which is also brought into a horizontal position, after which, rotating the pipe in a vertical plane, is directed onto the rail so that the zero division of the rail 15 visible in the pipe (Fig. 2) coincides with the intersection point of the distance gauge circumference 13 with a hair 14; at the same time, the counted number of rake divisions from O to the intersection of the ranging circle 13 with the rail 15 gives the horizontal distance from the tool to the rail in a multiple ratio, i.e. if each division of the rail corresponds to two meters of distance in the terrain, then the actual distance in meters will be equal to the counted division multiplied by two.

The proposed device can also be used to determine if one point of a terrain is above another, YES

which rake 15 is placed vertically. Since the horizontal and vertical distances are determined arithmetically by the device, all calculations of the corrections for the slope of the lines are eliminated, and to clarify the determined value of the space, the average of the upper and lower readings is taken.

 the invention.

A device for determining the horizontal position using a graded rail sighting, which is characterized by using in the field of view a tube of hair 14, connected with gears 6-5 and 3-2, with a tube moving in a vertical plane, with the aim of obtaining at the intersection with a circle 13 points to align with the end of the graded rod designed to read on it the horizontal value of the space in the appropriate scale.