GB190609086A - Improvements in and relating to Influence Electrical Machines. - Google Patents

Abstract

9086. Wommelsdorf, H. April 17. Influence machines. -In order to increase the quantity of electricity produced per revolution of the plates of influence electric machines, the distance between successive inductors s, Fig. 2, embedded between the insulating disks e, f, is kept small, and the insulating material lying between successive inductors is so divided as to increase the distance between the inductors taken in the direction of the contacting faces ; the outer surfaces of the disks e, f may be coated with a layer of insulating material the surface of which retains its insulating power under the influence of the electric discharge for a longer time than the surface of the disk itself would, if in contact with the air. The contacting surface may be increased by means of insulating lamellµ i, Fig. 2, or by forming projections i on the disks, Fig. 3. Several segmental insulating parts may be employed with the inductors placed on opposite tides. The disks e, f and the internal layer i are preferably formed of non- vulcanized india-rubber, rolled in plate form, the parts being vulcanized after being joined and compressed. The electricity may be collected at the edge of the plates by means of conductors l, Fig. 1, or by means of metallic studs or bars projecting through the plates. In using ebonite disks the outer surfaces may be covered with thin celluloid disks, or with a layer of gutta-percha or other form of india-rubber free from sulphur or poorer in sulphur than the ebonite, or with a solution of camphor or celluloid in acetone, amyl acetate, or the like.