SU33311A1 - Device for recording plant growth changes - Google Patents

Description

Instruments are used to record plant growth, in which a thin thread is fixed on any part of the stem and transmits to the instrument pointer all changes in plant growth. The present invention relates to such a device and consists in the fact that in order to return the writing index when it reaches the maximum deviation to the initial position, the latter is fixed to the sleeve, which rotates on a fixed axis having a screw cut, so that the sleeve The limit position removes the wall with the gear wheel from the finger, which this wheel turns. In conjunction with this, the arrow returns to its original position under the action of the force T of the tin.

In the attached drawing of FIG. 1 is a side view of the device; FIG. 2 - rear view; FIG. 3 and FIG. 4-mechanism for returning the pointer to its original position in two projections.

The spring /, the tension of which is regulated by the rotary sleeve 2, can rotate the upper axis of the device, on which the gears 3 are fitted. Each of the gears 3 can be coupled with a corresponding gear mounted on the lower axis of the device. On the .nizh (316)

The null AXLE is fitted with a drum 5, on which a silk thread B is wound, connected with the stem of the plant.

On the upper axis, the protrusion 7 is reinforced, abutting the tooth with gear 8, which is associated with the sleeve 9 and the pointer (arrow) 10. The sleeve 9 is cut and can rotate freely on the fixed axis 77, which also has a cut.

The studied plant is fastened with a thin silver hook with a silk thread wound on drum 8. As the plant grows, the drum will wind the elongated thread to itself under the influence of the spring 7 turning the upper shaft. Turning the upper shaft turns the protrusion 7 of the gear 8, and together with her arrow 10, writing on the drum. To keep recording in progress when the pen on arrow 10 reaches the top of the drum, the arrow automatically slides down. This is achieved by raising the arrow to the limit position, gear Yu, together with the sleeve, moves away from the protrusion, slides off of it and turns on one tooth, which again abuts against the protrusion 7. Ta:; by means of the arrow, with its own weight comes to the lower position and It begins a gradual rise.

PROPERTY 3 O n e r a t i n.

A device for recording plant growth changes using a block fixed to the axis with a thread wound on it, the free end of which is fixed to any part of the plant under study, characterized in that, in order to return the writing index to its original position when it reaches the maximum deviation with respect to the surface to be recorded, the pointer arrow is provided with a sleeve 9 and a thread placed on a fixed axis provided with a screw thread, so that, when the arrow is deflected, grasped by the protrusion 7 coupled to the tongue 8, it besides the deflection receives an additional displacement along the axis, freeing the arrow, which, under the influence of its own weight, returns to its original position.