SU1132A1 - Nivelir - Google Patents

Description

The proposed Nivelir is intended mainly for railway surveys and has the purpose of mechanically bringing it to a horizontal position using a fluid and, therefore, the absence of rotation axes, ease of replacement of parts and convenience when working on a river and when determining elevation points.

FIG. 1 is a side view of the Niveller; FIG. 2 - 8 parts.

The nivellier tube i with its fins 2 in the middle is placed on the stand 4, attached to the last screw 5. The fins 2 and the upper part of the stand 4 have a cutting inside which the screw 5 runs freely. To secure the screw 5, a cap-like nut 27 is screwed onto the bottom of it. The pipe i is fixed tightly in the manufacture of the leveling device and is not shifted during operation. The support -4 at the bottom is diverged in the form of four legs 26, by which it rests on the wooden bar 5. Attached to the latter tightly with screws. A cylindrical bar 5 is placed in a metal vessel 7 of a cylindrical shape, and the latter is poured in advance to a certain boundary (with insignificant

practice deviations mi) water. The border is held at. as a strip of black indelible paint. The vessel 7 has in the middle one protrusion (metal outgrowth) 9y ending with a ball entering the conical undercut (hole) 8 of the bottom of the bar (fin) 5. The upper part of the cone 8 is truncated and rounded in relation to the curvature of the ditch 9 along which it slides. Part .9 serves to prevent the walls of the bar (fin) from frictioning 5 against the walls of the vessel 7. The vessel 7 is placed in the recess iO of the tripod And there are small handles 32 on both sides, on which a wooden handle 54, is hung on one side of the belt 55. on the other hand, on the belt 55, the ring 55 — all this serves to conveniently carry the vessel with water. The metal box i2 is placed on the axis / 5 and is equipped with free-walking tubes jf5 with handles i4. The diameters of the holes of the tubes 13 are equal to the dimensions of the plug 6, mounted on the stand 4; the holes towards the end are slightly widened. Axis 15 is mounted on a rod (prismatic axis) 10, along which it moves only in a vertical plane; it has spikes 22 in which the thread m screws are cut

23. If (axis), attached to the installation /.9 using a sharahir. D7-and an elastic spring 18 placed inside the installation 19. which has 4 legs 20 and a wing 21 with a column 30, on top of which there is a wing 31 parallel to the wing 21 In the wings x21 and 31, along threading, the screws and bolts 24 and 25 move together, tilting the axis 15 or raising it. The legs 20 are placed on the extended portion of the vessel 7. The pipe 1 has. protrusions 28 into which a level is inserted during periodic calibrations; they are covered with nuts 29. The entire device has shoots 56, in which, when wind and rain, plans 37 are covered with matter. The device of the latter: thin metal rods 58, connected by hinges 39, covered with matter (tarpaulin); with the cheeks 40, they are mounted on the processes 36 and fastened to the last spikes 41.

The operation of the Nivellir in determining the elevation of terrain points is performed as follows: a vessel 7 with water is mounted on the tripod 11. A float 5 is immersed in it with a stand 4 and tube i attached to it. It is immersed so that the ball 9 enters the recess 8. While the system comes to a horizontal position and is balanced, the device 42 is installed. After the system calms down and the pipe i becomes horizontal, look into the holes of the tubes 13, which are located away from each other, and see whether these holes are exactly opposite the plug 6: if not, then adjust the screws 25, 24 and 25, which rotate the box 12 in two directions. If box 12 is to be lifted, then slightly unscrew the screws 24, press the ring onto the head of the axle 16 and act with the screw 25. After that, the tubes 13 are pushed in on the plug 6, which fixes the system

not allowing it to oscillate in the liquid and maintain the achieved horizontal position. Then, lifting the marked place 45 of the installation 19, slowly rotate the system in the desired direction, fixing the readings of the rail. If wind or rain interferes with the operation, install cover 57 as described above. Axis 15 is superimposed with screws 24 and 25 in one direction only, since pushing the tripod with your foot on the tripod can freely eliminate the need for rotation in the other. If there are any doubts about the horizontal position of the pipe, then they will turn it to the reserve level, becoming it in the hole 28 on the pipe L

SUBJECT OF THE PATENT.

1. Nivellir, characterized in that the support of the 4 pipes of the Nivellier is fixed in a cylindrical wooden bar 5, floating in a vessel 7 with water installed in the recess of tripod table 11 11 (Fig. 1, 2 and 3).

2. At the level of supplying the bottom of the vessel 7 specified in paragraph 1 with a protrusion 9 with a ball at the end, which is included in the cone-shaped notch 8 in the lower part of the wooden bar 5 (Figs. 2 and 5).

3. When specified in clauses. 1 and 2 use the box 12 with the tubes 13 free running therein, serving to put a fork b on the grip stand 4, which box 12 is movable by means of screws 25.25. on axis 15, in turn, with the aid of screws 24 and 25, movable on rod 16, pivotally fixed on vessel 7 with water (Figs. 1, 4 and 5).

4.When specified in clauses. 1 2 and 3 Nivellier use mounted on slats 19 at points 36,36 rods 38, connected by hinges 39 and covered with tarpaulin (Fig. 6, 7, 8). Kpatent A.F.KUZY

B- FIG.

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INA.J 1132