US265775A - Thomas a - Google Patents
Thomas a Download PDFInfo
- Publication number
- US265775A US265775A US265775DA US265775A US 265775 A US265775 A US 265775A US 265775D A US265775D A US 265775DA US 265775 A US265775 A US 265775A
- Authority
- US
- United States
- Prior art keywords
- magnet
- coil
- arc
- armature
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010891 electric arc Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000001105 regulatory Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 235000008984 brauner Senf Nutrition 0.000 description 2
- 244000275904 brauner Senf Species 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
- B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece
Definitions
- the object of my invention is to produce novel and efiective means for regulating the feed of the carbons of voltaic-arc lamps.
- the resistance of the main line becomes greater and more current passes through the shunt, heating the coil therein and forcing the armature away from the magnet, so as to lower the carbon connected with the armature. The resistance is thus diminished, less current passes through the shunt, and the armature is drawn up and held by the magnet.
- 1 2 is the main circuit, including the carbons P N and the electro-magnet M.
- C is an expansible chamber, the air in which is heated by the coil H, and expands and con- (No model.)
- the chamberC is connected by a rod, S, with the armature A, so that such armature is rai ed and lowered by the alternate contraction and expansion of the chamber.
- the rod S might be the movable core of a solenoid, It, representing any suitable device operated by the movement of the armature A for regulating the feed of the carbon I It is evident that while the use of the expansible chamber produces an increased effect it might be dispensed with and the expansion and contraction of the coil II utilized directly.
- ⁇ Vhat I claim is 1.
- the electric heating-coil and expansible inclosing chamber in regulating mechanism for electric-arc lights, substantially as and for the purpose set forth.
Description
(No ModeL) T. A. EDISON.
ELECTRIC ARC LIGHT. No. 265,775. Patented Oct. 10, 1882.
WITNESSES I IQIVENTOR 0 BY ATTORNEYS.
UNITED STATES PATENT OFFICE.
THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THE EDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y.
ELECTRIC-ARC LIGHT.
SPECIFICATION forming part of Letters Patent No. 265,775, dated October 10, 1882.
Application filed November 28, 1881. Renewed August 1 1, 1852.
To all whom it may concern:
Be it known that I, THOMAS A. EDISON, of Menlo Park, in the County of Middlesex and State of New Jersey, have invented a new and useful Improvement in Electric-Arc Lights, (Case No. 371;) and I do hereby declare that the following is a full and exact description of the same, reference being had 10 the accompanying drawing, and to the letters of reference marked thereon.
The object of my invention is to produce novel and efiective means for regulating the feed of the carbons of voltaic-arc lamps.
In carrying out my invention I place in the main circuit, including the arc, an electro-magnet or asolenoid holding up an armature which holds up the upper carbon; and in a shunt around the magnet and carbons I place a heating-coil whose action raises and lowers the armature, opposing that of the magnet. As the length of the arc increases the resistance of the main line becomes greater and more current passes through the shunt, heating the coil therein and forcing the armature away from the magnet, so as to lower the carbon connected with the armature. The resistance is thus diminished, less current passes through the shunt, and the armature is drawn up and held by the magnet.
Convenient means for carrying my invention into effect are shown in the drawing.
1 2 is the main circuit, including the carbons P N and the electro-magnet M.
3 4. is a shunt around the carbons and magnet, including the heating-coil H.
C is an expansible chamber, the air in which is heated by the coil H, and expands and con- (No model.)
tracts as the coil is more or less heated. The chamberC is connected by a rod, S, with the armature A, so that such armature is rai ed and lowered by the alternate contraction and expansion of the chamber. The rod S might be the movable core of a solenoid, It, representing any suitable device operated by the movement of the armature A for regulating the feed of the carbon I It is evident that while the use of the expansible chamber produces an increased effect it might be dispensed with and the expansion and contraction of the coil II utilized directly.
\Vhat I claim is 1. In an electric-arc lamp, the combination of the main circuit, containing the carbons and an electro-magnet or solenoid, with a shunt around thearc, containinga heating-coil adapted to oppose by its action the action of the magnet, substantially as set forth.
2. In an electric-arc lamp, the combination of the main circuit containingthe carbons and an electro-magnet or solenoid, a shunt around the arc, containing aheating-coil, and an expansible chamber, substantially as and for the purpose set forth.
3. In regulating mechanism for electric-arc lights, the electric heating-coil and expansible inclosing chamber, substantially as and for the purpose set forth.
This specification signed and witnessed this 7th day of November, 1881.
TI-IOS. A. EDISON.
Witnesses H. W. SEELY, RICHD. N. DYER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US265775A true US265775A (en) | 1882-10-10 |
Family
ID=2335034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US265775D Expired - Lifetime US265775A (en) | Thomas a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US265775A (en) |
-
0
- US US265775D patent/US265775A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US265775A (en) | Thomas a | |
| US551244A (en) | wiemann | |
| US493359A (en) | Electric-arc lamp | |
| US510260A (en) | Electric-arc-lighting system | |
| US263138A (en) | Thomas a | |
| US611601A (en) | Electric-arc lamp | |
| US477427A (en) | maquaire | |
| US669055A (en) | Electric-arc lamp. | |
| US337776A (en) | loomis | |
| US254546A (en) | John h | |
| US351961A (en) | Automatic electric-current regulator | |
| US865516A (en) | Electric regulator. | |
| US673935A (en) | Electric-lighting system. | |
| US569818A (en) | Harry p | |
| US1549872A (en) | Electric welding apparatus | |
| US573464A (en) | hopkins | |
| US301076A (en) | Edwaed weston | |
| US265670A (en) | guest | |
| US787043A (en) | Electric-arc lamp. | |
| US553919A (en) | Electric abc lighting | |
| US474266A (en) | Uajulilu jlal iul uj | |
| US281229A (en) | Electric lamp | |
| US781937A (en) | Electric-arc lamp. | |
| US253205A (en) | holgombe | |
| US255148A (en) | Leonard e |