DE439475C - Oil switch with eight-fold interruption - Google Patents

Description

GERMAN EMPIRE

ISSUED ON JANUARY 10, 1927

REICH PATENT OFFICE

PATENT LETTERING

- M 439475 CLASS 21c GROUP

(V21144 VIII / suc *)

Voigt & Haeffner Akt-Ges. in Frankfurt a. M. *).

Oil switch with eight interruptions. Patented in the German Empire on April 1, 1926.

The present innovation relates to switches with large capacities., In which a multiple interruption to reduce arcing as special has shown valuable. In order to minimize the space required for such a switch on the one hand to reduce and at the same time a rapid extinction of the formed when switching off Achieving arcs is after

ίο present innovation an eightfold interruption executed with four knives, with the two inner knives lying in one direction opposite the two outer knives Knives are shifted to the side so that the line routing from an outer Knives through the two inner knives to the other outer knives a kind of coil winding forms, also the connecting lines to the inner knives with the the latter form such an angle that the fire except through the electromagnetic Effect of the specified coil winding also through electrodynamic effect is pushed out to the sides.

Fig. Ι shows schematically the type of connection arrangement. Here a, b, c and d are the four knives, e, f, g, h, i, k, I, m are the associated contacts. The current course has now been chosen so that it goes from the inner contact / the outer knife to the

*) The patent seeker stated as the inventor:

Cesare Cippiielli in Frankfurt a. M.

Contact h of the inner knife b goes, from there via the second contact g of this knife to the contact k of the inner knife c and from the second contact i of this knife to the contact L of the second outer knife d. This results in a type of coil winding. Since, as can be seen from Fig. 2, view from above, the connection /, h with the knife δ, the connection g, k with the knife b and c, the connection i, L with the If knifef forms an angle, the fire in the extension of the knife, i.e. sideways from the fire formation on knives α and d, is dynamically pushed out at the contacts g, h, i and k , as well as through the coil winding specified above, and thus tearing off more quickly of the arc causes. This arrangement also offers great structural advantages,

ao by being able to arrange the contacts /, g, h, I, k, i on a circle so that they can be held by the same metal ring using appropriate insulators, as indicated by dotted lines in Fig. 2 .

Claims (2)

Patent claims: i. Oil switch with eight-fold interruption, characterized in that the two outer knives in the same direction, but the two middle knives against this are arranged laterally displaced that the connections of the one outer knife through the middle knife to the other outer knife represent a kind of spjilen winding and the line connection from the outer knives to the inner knives and the connection of the inner knives with these knives themselves form an angle, so that when you switch off the center Knives that form fire is pushed out sideways both electrodynamically and electromagnetically. 2. Arrangement according to claim 1, characterized in that the contact support of the both inner knives and the inner contacts of the two outer knives are arranged on a circle for ease of use to obtain structural arrangement of the contact parts in the switch. Fig. Fig.