SU20845A1 - Dynamo model - Google Patents

Description

The dynamo models still existing represent a dead drawing in which the direction of the current is drawn with the drawn arrows. When rotating in such a model of Mor, the arrows depicted on it will show neither a change in the direction of the current nor its value at that time, as both of them change depending on the passage of the winding of the core near this or the other pole.

The proposed model of dynamo, according to the author, allows one to see not only the direction of the electric current arising in the winding of the core, but also the magnitudes of the electromotive force, as well as the purpose and effect of the collector.

In FIG. 1 is a front view of the model; FIG. 2 and 2 are a view in two projections of an arrow showing the direction of the magnetic flux lines; FIG. 3 is a side view of the model.

The profile of the dynamo machine core is cut out of plywood or cardboard with two poles located at the top and bottom (Fig. 1). In the interpolar space

a flat disk made of cardboard or wood is also rotated, depicting a mass of core B with several turns of wire K on it, connected by ends with plates A and B of a collector. Three arrows are attached to these turns of the core winding in such a way that when the core rotates, they always remain in a vertical position, for which from the back side of the core to the shafts E of the arrows (Fig. 2) are attached counterweights D, holding them in the above; position If it is assumed that the electromotive force arising in the conductor is zero when the arrow takes a perpendicular position to the conductor, and vice versa, when the arrow takes the position parallel to the conductor, the electromotive force reaches its maximum value, then rotating it by the handle G (Fig 3) core, you can easily see from the deflection of the arrow not only the change in the magnitude of the electromotive force, but also the direction of the electric current arising in the core conductors when passing near this or another pole.

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The subject of the patent.

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The model of the dynamometer, characterized with the use of arrows C (Figs 1 and 2), depicting the direction of

Li magnetic sweat and worn n; a. rollers E, provided with counterweights D, serving to hold the arrows in the vertical position, while rotating the core by the handle.

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