SU40624A1 - Method and apparatus for testing seed quality - Google Patents

Description

In existing seed testers, by translucent, light enters directly into the eye of the observer and, irritating it, does not make it possible to consider well the seeds illuminated from below if artificial electric lighting is used; therefore, diaphanoscopes used at control seed stations are adapted to use daylight, and this makes it possible to view only a limited number of seeds having an easily translucent thin shell, and does not allow testing seeds that have a thick, difficult to translucent peel.

The proposed method of testing seeds by translucent them in transmitted light is intended to eliminate the indicated drawbacks and consists in the fact that seeds to be translucent (pine, spruce) are clamped between rigid glass or flexible mica, celluloid and other plates, then are surrounded by mercury or other opaque liquid. Artificial light, for example, from an electric lamp, enters through the plates into the seeds pressed against them and shines through it, while mercury plays the role of a liquid diaphragm, which does not transmit light outside the contact areas of the seed plates.

For the implementation of the method it is proposed to use an instrument consisting of

(467)

two rotary circles with their own axis, each provided with notches for guiding the seeds to be examined into a bath with mercury or another liquid.

In FIG. 1 depicts a view. used to implement the proposed method of the device in front of the section; FIG. 2 is the same, top view, FIG. 3 is a side view in section; FIG. 4 - detail of the device; FIG. 5 is a diagram of attachment of the device to the microscope stand.

The proposed method consists in the fact that the test subject is placed in a bath filled with mercury, the bottom of which is made of glass or another transparent material. Then this is pressed down from above by a transparent plate, as a result of which mercury will surround this like a diaphragm, since the mercury of the seed does not wet and will not go between the glass and the seed, due to the lighting of any force from the bottom of the seed, it does not irritate the viewer , but only passing through this light. This will be clearly visible on an opaque background.

The device for carrying out the described method consists of a main brass plate 7, carrying two pillars 2, connected by a crossbar 3, and an axis 4 is installed on the plate in this system, carrying two circles fastened to it: the bottom

"5" (larger) with notches b, "7" upper (smaller) with holes 8, into which individual seeds from the funnel 9 fall through the chalice 10. The holes are closed with a // plate, which prevents the seed from entering the hole eight,. fall out until it is above the branch pipe 12. The seed that falls into it rolls down into the bath 13 containing mercury 14, the bottom of which 75 is made of glass, mica or celluloid. The seed is held on the surface of the mercury until it is pinned from above by a metal box 16 with a glass bottom plate 17. Then the mercury from the bath / 5 along the narrow tube 18 will go into expansion 19, surrounded by this circle, outside of the contact points with the plates 15 and 77 (FIG. 4). At each turn of the circle 5 by 36 °, racks 22 enter the holes, connected to the sleeves 23, which are pressed down by the springs 2 #. Plates 25 are attached to the racks, carrying a metal box 16 with a glass bottom 77, which presses this to the bath with mercury. Parts of the device are arranged in such a way that the posts 22 enter into the holes 21 when the notches 6 are above the bath 13. After examining the seed, the circle 5 is rotated manually, the posts 22 exit the holes 21, lifting the Plates 25 and the box 16, this floats to the surface mercury and with further rotation of the circle 5 it is discharged from the bath 7J to the side, freeing up space for a new seed that has fallen into the next hole 8 and is ready to roll into the semoprovod 12. The tester is attached by clamps 26 to the magnifying glass stand, microscope, etc. Fig. 5 ), equipped with; mirror 20.

The subject matter of the invention.

1. A method of testing the quality of seeds by translucent them in the passage of light, characterized in that, in order to improve the clarity of translucency of the opaque ones: a liquid that does not wet the seeds and is clamped between two transparent plates so that the liquid surrounds the seeds only along the periphery of the contour, not filling the spaces between the transparent plates and facing them corresponds to governmental parties seed.

2. To implement the method referred to in clause 1, using a device consisting of two turning circles with an axis of 4 circles .5 and 7, each provided with cutouts for guiding the seeds to be studied into a bath 75 with mercury located under the bottom circle 5 .

to the author's testimony of N. I. Tuzov and N. A. Vozny No. 40624

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