SU58007A1 - Volume gauge - Google Patents

Description

Instruments for measuring the volume of bodies are known, based on the principle of air displacement by the measured body and made in the form of a glass with a ground stopper, which serves to place the body to be measured and to which the fission tube containing mercury is connected.

In the proposed device of this kind, in order to simplify its design and performed when measuring the volume of manipulations, a tube containing mercury is attached to the glass perpendicular to its axis and is open from the free end, and the reading itself takes place after the tube is tilted at a certain angle .

In FIG. 1 shows the general view of the meter; FIG. 2-part of the device tube; FIG. 3 - a modified device of the meter.

As can be seen from the drawing (Fig. 1), the device consists of a glass / dl of the material to be measured, clipped to the plug 2, from which the long thin tube 3 extends, is open at the end. A short column (drop) of 4 mercury or other liquid is placed inside the tube 3.

A plug 5 is attached to the plug 2, which serves to equalize the pressure before the measurement.

In the initial position, the valve 5 is open and the tube 5 is installed horizontally, with the mercury droplet 4 should take some zero position. In order for the droplet 4 itself to occupy its intended place, the tube 3 at this location may be somewhat bent, as shown in FIG. 2. The volume measurement offered by the device is as follows. Measured substance is poured into a glass. The cut is lubricated with petroleum jelly or tap putty and cork 2 is put on the cup. In this case, tap 5 must be open. After checking the horizontal position of the tube 8 and the position of the drop 4 in the zero position, shut off valve 5. To measure the volume by the expansion method, tilt the device at a certain fixed angle so that the tube is tilted open, - 1M end downwards. In this case, the column (drops) 4 will be displaced downward until the column weight is balanced by the corresponding vacuum inside the device. Than

the larger the volume of the measured body, the smaller the displacement of the column. After applying the scale on the tube 5, you can directly measure the volume of the body being measured. In order to measure the volume by the squeeze method, the tube 5 is inclined with its open end upwards.

In order to avoid the need for a crane, a through-hole 6 is made in the polished section, passing through the cup / and the stopper 2 (Fig. 3). When the cork 2 is put on the glass / it is guided in such a way that the holes 6 coincide, and before the measurement the glass is turned and the holes are blocked.

The subject matter of the invention.

Volumetric gauge based on the principle of air displacement by the measured body and made in the form of a glass with a ground stopper, which serves to place the body, and a tube with a mercury led to the glass, characterized in that the tube 5 carrying the mercury column is open at one end and the second attached to the glass perpendicular to its axis, and the position of the mercury in the tube is measured after the latter is tilted at a certain angle.

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