GB216772A - - Google Patents
Info
- Publication number
- GB216772A GB216772A GB25677/23A GB2567723A GB216772A GB 216772 A GB216772 A GB 216772A GB 25677/23 A GB25677/23 A GB 25677/23A GB 2567723 A GB2567723 A GB 2567723A GB 216772 A GB216772 A GB 216772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- arc
- electrodes
- leading
- bimetallic
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/98—Lamps with closely spaced electrodes heated to incandescence by light-emitting discharge, e.g. tungsten arc lamp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D7/00—Picks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
216,772. General Electric Co., Ltd., (Assignees of Patent Treuhand Ges. fiir Elektrische Gl³hlampen). June 23, 1925, [Convention date]. Arc lamps. - An enclosed arc lamp has two electrodes f, f<1>, preferably of tungsten, mounted on supports e, e' connected to leading-in wires d, d<1>, and an intermediate electrode g of larger diameter not connected to a leading-in wire. The electrode f<1> is normally held against the electrode g by a bimetallic strip i in the support e<1>. The bulb b may contain a filling of rare gas. On the circuit being made, an arc is struck between the electrodes f and g. The electrode f is thereupon withdrawn, striking a second arc between the electrodes f<1> and g. The invention enables a smaller series resistance than is usual to be employed. Bimetallic strips may be mounted in more than one of the carrier stems.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US707722A US1529323A (en) | 1924-04-19 | 1924-04-19 | Closed arc lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB216772A true GB216772A (en) | 1924-06-05 |
Family
ID=24842891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25677/23A Expired GB216772A (en) | 1924-04-19 | 1923-10-15 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1529323A (en) |
| DE (1) | DE399308C (en) |
| GB (1) | GB216772A (en) |
-
1923
- 1923-06-24 DE DEP46431D patent/DE399308C/en not_active Expired
- 1923-10-15 GB GB25677/23A patent/GB216772A/en not_active Expired
-
1924
- 1924-04-19 US US707722A patent/US1529323A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE399308C (en) | 1924-08-01 |
| US1529323A (en) | 1925-03-10 |
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