US438134A - Electric aeg lamp - Google Patents
Electric aeg lamp Download PDFInfo
- Publication number
- US438134A US438134A US438134DA US438134A US 438134 A US438134 A US 438134A US 438134D A US438134D A US 438134DA US 438134 A US438134 A US 438134A
- Authority
- US
- United States
- Prior art keywords
- electric
- carbon
- lamp
- aeg
- tube
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 22
- 229910052799 carbon Inorganic materials 0.000 description 22
- 239000004215 Carbon black (E152) Substances 0.000 description 10
- 150000002430 hydrocarbons Chemical class 0.000 description 10
- 210000001736 Capillaries Anatomy 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 6
- 239000005995 Aluminium silicate Substances 0.000 description 4
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000015450 Tilia cordata Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 4
- 239000011507 gypsum plaster Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000414 obstructive Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
Definitions
- W ihess e5 nvfi/fdf WMWW 1 .4 /wa4- W4 m: hORms runs co., PKorO-umu. wAs nnnnnnnnn c.
- My invention has for its object to increase the intensity, improve the color, and augment the steadiness of the electric-arc light obtainable from a given amount of energy.
- a wick I line the bore-hole of the carbon with a suitable insulating (otherwise refractory) material-such as kaolin, lime, plaster-of-paris, vitreous paint, japan,
- a thin capillary tube which varies in size with the size or length of the carbon, and which in the case of ordinary carbons has from one-hundredth to one-fiftieth of an inch clear width or diameter for the passage of the vapors.
- the cross-section of the vapor duct or tube may be circular or of other suitable shape.
- the tube or lining is very thin, and therefore the quantity of mineral matter very small, it burns or falls away in proportion as the carbon is consumed, thus keeping the hole open for the easy passage of the vapors from the lower parts of the carbon or from the vessel containing oil or other source of hydrocarbon vapor.
- Another object of the lining or tube is to prevent the deposit of carbon from the vapor on the walls of the passage, which deposit would form an obstruction to the flow of vapors.
- FIG. 1 is a vertical section
- Fig. 2 a cross-section, of a carbon embodying my invention.
- the carbon A is fitted into a vessel B, containing oil up to the level 0, which oil ascends by capillary attraction through the small axial perforation 7c.
- This passage 10 is formed by the tube or lining K, of kaolin, plaster-of-paris, or other suitable refractory material.
- B is a brass rod or tube, bymeans of which the vessel B can be fixed in the lampholder. The partB may, however, be placed in any other convenient position.
- the vessel is provided with an opening, which can be plugged by a screw S, and serves to admit air to the interior When required.
- the hydrocarbon oil may be supplied by a separate reservoir placed in any suitable position and connected with the inlet end of the carbon by a Wick.
- I claim is A carbon for electric-arc lamps, having an axial perforation provided with a lining or tube adapted to supply liquid by capillary attraction, substantially as described.
Description
(No Model.)
A. APPS.
I ELECTRIC ARC LAMP. No. 488,134. Patented Oct. 14, 1890.
Haj
W ihess e5: nvfi/fdf WMWW 1 .4 /wa4- W4 m: hORms runs co., PKorO-umu. wAs nnnnnnnnnn c.
UNITED STATES ATENT F ICE.
ALFRED APPS, OF LONDON, ENGLAND.
ELECT RIC-ARC LAM P.
SPECIFICATION forming part of Letters Patent No. 438,134, dated. October 14, 1890.
Application filed (Tuii 17, 1890. Serial No. 355,790. (No model.)
To all whom it may concern.-
Be it known that I, ALFRED APPS, a subj ect of the Queen of England, residing at 433 Strand, London, in the county of London,
England, have invented certain new and useful Improvements in Electric-Arc Lamps, of which the following is a specification.
My invention has for its object to increase the intensity, improve the color, and augment the steadiness of the electric-arc light obtainable from a given amount of energy.
I am aware that for this purpose hydrocarbon vapors have been conducted through the interior of the carbon, and that a special method of using hydrocarbon vapors and preventing the stoppage of the bore-hole through which the vapors pass consists in inserting a wick made of asbestos. I have discovered, however, that no wick is necessary for keeping the bore-hole open and allowing the hydrocarbon vapor to pass.
Instead of using a wick I line the bore-hole of the carbon with a suitable insulating (otherwise refractory) material-such as kaolin, lime, plaster-of-paris, vitreous paint, japan,
. stone, or earthenwareso as to form a thin capillary tube, which varies in size with the size or length of the carbon, and which in the case of ordinary carbons has from one-hundredth to one-fiftieth of an inch clear width or diameter for the passage of the vapors. The cross-section of the vapor duct or tube may be circular or of other suitable shape. In making this capillary tube or lining the lime, plaster, or other mineral matter is introduced in a plastic condition, so that it adheres readily to the interior of the carbon, and a thin wire or other core is inserted and afterward withdrawn in order to preserve the necessary aperture. As the tube or lining is very thin, and therefore the quantity of mineral matter very small, it burns or falls away in proportion as the carbon is consumed, thus keeping the hole open for the easy passage of the vapors from the lower parts of the carbon or from the vessel containing oil or other source of hydrocarbon vapor.
Another object of the lining or tube is to prevent the deposit of carbon from the vapor on the walls of the passage, which deposit would form an obstruction to the flow of vapors.
In the further description reference will be made to the accompanying drawings, in which Figure 1 is a vertical section, and Fig. 2 a cross-section, of a carbon embodying my invention.
The carbon A is fitted into a vessel B, containing oil up to the level 0, which oil ascends by capillary attraction through the small axial perforation 7c. This passage 10 is formed by the tube or lining K, of kaolin, plaster-of-paris, or other suitable refractory material. B is a brass rod or tube, bymeans of which the vessel B can be fixed in the lampholder. The partB may, however, be placed in any other convenient position.
The vessel is provided with an opening, which can be plugged by a screw S, and serves to admit air to the interior When required.
Instead of using a vessel B, the hydrocarbon oil may be supplied by a separate reservoir placed in any suitable position and connected with the inlet end of the carbon by a Wick.
that I claim is A carbon for electric-arc lamps, having an axial perforation provided with a lining or tube adapted to supply liquid by capillary attraction, substantially as described.
In testimony whereof I have signed this specification in the presence of two subscribing witnesses.
ALFRED APPS.
W'itnesses:
J. WETTER, ERNEST O. BARKER.
Publications (1)
Publication Number | Publication Date |
---|---|
US438134A true US438134A (en) | 1890-10-14 |
Family
ID=2507036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US438134D Expired - Lifetime US438134A (en) | Electric aeg lamp |
Country Status (1)
Country | Link |
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US (1) | US438134A (en) |
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0
- US US438134D patent/US438134A/en not_active Expired - Lifetime
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