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Updated: June 17, 2025
He picked up a twig and began to scratch a drawing on the soil in front of him. He drew four coils arranged symmetrically round the circumference of a circle. In the centre he drew a rotor or armature. As each coil in turn was energised it attracted the rotor towards it and the rotary motion was established. When he constructed the first practical models he used eight, sixteen and even more coils.
Impelled by the Frenchman's tremendous heave, the winged man shot forward and struck full, with a splashing sound, against the terrifically revolving armature. A thunderbolt seemed to explode in our faces. All in that room, we as well as the Orconites, reeled dazedly back. A stench of seared flesh and short circuited wires smote our nostrils.
The relay coils are connected by wire to the spring piece, S, and the armature lever is connected to earth.
Its legs are hollowed at the ends to admit closely the armature which turns there. There are valuable peculiarities in its construction, which, while complying in all respects with the dynamo principle, utilize those principles to the best mechanical advantage. So do others, in other respects that did not occur even to Edison, or were not adopted by him.
One of the ends of the wire used in this winding was fastened to the axle of the armature, and the other to a ring insulated from the shaft, but turning with it. Two springs, one bearing on the shaft and the other on the ring, carried away the current through wires attached to them.
In this way, when a coil on one side of the rim is at its "dead point" and yields its minimum of current, the corresponding coil on the other side is giving out its maximum. The field magnets are made in a similar manner to the armature and run in circles parallel to the rim of the latter.
Bergmann, now I know where my power goes to, pointing to the dynamo. Bergmann gave him a withering look of scorn, and said, 'Come here and I will show you. Throwing off the belt and disconnecting the wires, he spun the armature around by hand. 'There, said Bergmann, 'you see it's not here that you must look for your loss. This satisfied the landlord, and he started off to his other tenants.
I was anxious to show, upon the reading of this paper, some mechanical movement produced by molecular rotation, consequently I have arranged two bells that are struck alternately by a polarized armature put in motion by the double polarized rod I have already described, but whose position, at three centimeters distant from the axis of the armature, remains invariably the same.
Without seeing it at work, we already suspect that the fantastic beak of the Balaninus is a drill analogous to those which we ourselves use in order to perforate hard materials. Two diamond-points, the mandibles, form the terminal armature of the drill.
He also considered various forms and shapes for the armature, and by methodical and systematic research obtained the data and best conditions upon which he could build his generator. In the field magnets of his dynamo he constructed the cores and yoke of forged iron having a very large cross-section, which was a new thing in those days.
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