GB485359A - Improvements in and relating to electric arc lamps - Google Patents
Improvements in and relating to electric arc lampsInfo
- Publication number
- GB485359A GB485359A GB28207/37A GB2820737A GB485359A GB 485359 A GB485359 A GB 485359A GB 28207/37 A GB28207/37 A GB 28207/37A GB 2820737 A GB2820737 A GB 2820737A GB 485359 A GB485359 A GB 485359A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ratchet
- arc
- pawls
- attached
- cam
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/22—Pavings made of prefabricated single units made of units composed of a mixture of materials covered by two or more of groups E01C5/008, E01C5/02 - E01C5/20 except embedded reinforcing materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/0081—Controlling of arc lamps
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
485,359. Arc lamps ; variable - speed gearing. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 16, 1937, No. 28207. Convention date, Oct. 17, 1936. [Class 39 (i)] [Also in Group XXIV] The negative electrode of an arc lamp is fed forward or backward by means of bevel gear loose on a continuously running shaft and connected thereto by ratchets engaged and disengaged by devices operated by the voltage across the arc. The ratchets 31, 44 are attached to the two bevel wheels 32. The ratchet 31 is driven by pawls 30, 34 carried by an arm 28 on the shaft 10. Tails 40 attached to the pawls 30, 34 run on a cam surface consisting of a fixed portion 36 and a movable portion 37. The portion 36 is of such size that when one of the tails 40 is in contact with it the corresponding pawl is held out of engagement with the ratchet. The portion 37 is attached to a bracket 38 secured to the armature of a magnet 52 connected across the arc. This bracket also carries the movable portion 42 of a cam controlling the pawls operating the ratchet 44, the arrangement being such that the movable part of the cam allows the pawl to drive the appropriate ratchet in accordance with the voltage in the coil of the magnet 52.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US485359XA | 1936-10-17 | 1936-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB485359A true GB485359A (en) | 1938-05-18 |
Family
ID=21955105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28207/37A Expired GB485359A (en) | 1936-10-17 | 1937-10-16 | Improvements in and relating to electric arc lamps |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR485359A (en) |
| GB (1) | GB485359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2430552A1 (en) * | 1978-07-05 | 1980-02-01 | Whitehead Moto Fides Stabil | MECHANISM FOR VARYING THE RELATIVE ANGULAR SPEED OF TWO TREES IN A PROPORTIONALLY CONTINUOUS WAY |
-
1917
- 1917-05-04 FR FR485359D patent/FR485359A/en not_active Expired
-
1937
- 1937-10-16 GB GB28207/37A patent/GB485359A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2430552A1 (en) * | 1978-07-05 | 1980-02-01 | Whitehead Moto Fides Stabil | MECHANISM FOR VARYING THE RELATIVE ANGULAR SPEED OF TWO TREES IN A PROPORTIONALLY CONTINUOUS WAY |
Also Published As
| Publication number | Publication date |
|---|---|
| FR485359A (en) | 1918-01-04 |
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