US Patent: 257,588
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| Electric Light Regulator
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Patentee:
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| Nathaniel S. Keith (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 21, 1881 |
| Granted: |
May 09, 1882 |
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Joel Havens
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Description: |
| Abstract:
My invention relates to the feeding and regulating devices of electric lamps; and its object is to produce a feeding mechanism that shall be perfectly steady and uniform in its action, and shall be free from the defects of overfeeding, vibration of the electromagnetic supporting devices for the carbon, accidental release of the carbon-carrying rod by a sudden jar communicated to the lamp, and other disadvantages incident to the constructions now in general use.
In carrying out my invention 1 make use of an electromagnetic motor in a derived circuit, which is geared or connected to the carbon carrier, so that the movement of the latter in both directions is dependent wholly upon the movement of the motor. The reversal of movement in the carbon-carrier is produced either by positively reversing the direction of movement of the electro-magnetic motor or by operating a reversing-clutch interposed in the train of gear between the motor and the carbon-carrier, the reversal being in either case dependent upon the movement of devices actuated and controlled by electro-magnets placed in a derived circuit to the arc and in the main or principal circuit with the carbons.
Claim:
The combination of a carbon-carrier, an electric motor gearing with said carrier, so as to control its movement in both directions, said motor being placed in a derived or branch circuit, devices, substantially as described, for reversing the direction of movement of that portion of the motor-train which engages with the carrier, and two regulating or controlling electro-magnets operating said reversing devices, one of said magnets being placed in a derived circuit to the carbons and the other in the main or principal circuit with said carbons. |
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