GB102484A - Improvements in and relating to Vapour Electric Systems for the Conversion of Direct Electric Currents into Alternating Currents. - Google Patents
Improvements in and relating to Vapour Electric Systems for the Conversion of Direct Electric Currents into Alternating Currents.Info
- Publication number
- GB102484A GB102484A GB14767/16A GB1476716A GB102484A GB 102484 A GB102484 A GB 102484A GB 14767/16 A GB14767/16 A GB 14767/16A GB 1476716 A GB1476716 A GB 1476716A GB 102484 A GB102484 A GB 102484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- cathode
- anodes
- current
- primary
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/51—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using discharge tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Particle Accelerators (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
102,484. British Westinghouse Electric & Manufacturing Co., (Assignees of Chubb, L. W.). Nov. 29, 1915, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus.-In a system for converting direct current into alternating current, use is made of a vacuum apparatus provided with means for regulating the current-flow between the electrodes by electrostatic control of the negative electrons. In the arrangement shown in Fig. 1, the casing 9 supperts two anodes 10, 11 and a cathode 12, which is maintained in an active state by the battery 13. Suppressor shields surround the anodes and consist of casings 15 with diaphragms 16 supporting conducting-tubes 17, through which the discharge passes. The tubes 17 may be connected to their respective anodes through a switch arm 18 rotated by the motor 19. The anodes are connected to the ends of a transformer primary 20, the central point of the winding being connected to a direct current circuit 26. The transformer secondary is connected to the alternating-current load 23, preferably through tuning-devices 24, 25. With the switch 18 in the position shown and the circuit 26 energized, the shield of the anode 11 is connected to the anode and thereby maintained at a positive polarity. Current therefore flows from the circuit 26 through the right-hand half of the transformer primary 20 to the anode 11 and cathode 12, and from the casing 9 back to the circuit 26. When the arm 18 is rotated through 90 degrees, the anode 10 is connected to the shield, and the discharge passes across the anode 10 and cathode 12 to energize the left-hand half of the transformer primary. The flow of current through an anode may be choked out at the end of the desired wave by producing an oscillating current through the arc and causing it to die down to a zero value. This apparatus produces an electro-motive force of a square-top wave form, and in order to obtain an approximate sine wave form, two additional anodes are employed. Simultaneously with the substitution of one anode for another, the number of active turns on the transformer primary is increased or diminished to give the required electro-motive force value in the secondary. In a modification, a hot filament cathode 59, Fig. 5, is associated with four anodes 60 - - 63 connected to the transformer and provided with suppressor shields 65 - - 68 formed of closely interwoven masses of refractory wire, such as tungsten or molybdenum. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a converter as shown in Fig. 5 (cancelled). Four cathodes 48 - - 51 of the hot filament type are associated with a common anode 52 and are heated by currents from the battery 53. As the switch arm 18 rotates, the cathode 51 is connected in circuit with the left-hand half of the transformer primary, then the cathode 50 is connected with one section of the primary, and then the cathode 51 is reconnected to the half of the primary. Similar connexions are made between the cathodes 49, 48 and the other half of the primary to obtain an electro-motive force of approximate sine wave form. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64154A US1347894A (en) | 1915-11-29 | 1915-11-29 | Vacuum-type inverted converter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB102484A true GB102484A (en) | 1917-04-05 |
Family
ID=22053927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14767/16A Expired GB102484A (en) | 1915-11-29 | 1916-10-17 | Improvements in and relating to Vapour Electric Systems for the Conversion of Direct Electric Currents into Alternating Currents. |
Country Status (3)
Country | Link |
---|---|
US (2) | US1347894A (en) |
FR (1) | FR484534A (en) |
GB (1) | GB102484A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748677C (en) * | 1934-04-18 | 1944-11-08 | Inverter vessel with arc discharge | |
DE753710C (en) * | 1936-12-02 | 1953-07-13 | Siemens Schuckertwerke A G | Procedure for dimensioning the passage openings in the grids of discharge vessels with gas or steam filling |
GB558861A (en) * | 1942-07-21 | 1944-01-25 | Standard Telephones Cables Ltd | Improvements in or relating to generators of periodically varying electric currents |
US2579374A (en) * | 1947-03-15 | 1951-12-18 | Gen Railway Signal Co | Power conversion device of the vacuum tube type |
BE491496A (en) * | 1948-10-05 | |||
FR1028079A (en) * | 1950-10-11 | 1953-05-19 | Hewittic | Improvements to stand-alone inverters |
-
0
- US US16363D patent/USRE16363E/en not_active Expired
-
1915
- 1915-11-29 US US64154A patent/US1347894A/en not_active Expired - Lifetime
-
1916
- 1916-10-17 GB GB14767/16A patent/GB102484A/en not_active Expired
- 1916-11-23 FR FR484534A patent/FR484534A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR484534A (en) | 1917-10-16 |
USRE16363E (en) | 1926-06-15 |
US1347894A (en) | 1920-07-27 |
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