GB1191466A - Glow-Discharge Character-Display Tube and Method of Manufacturing such a Tube. - Google Patents
Glow-Discharge Character-Display Tube and Method of Manufacturing such a Tube.Info
- Publication number
- GB1191466A GB1191466A GB48028/67A GB4802867A GB1191466A GB 1191466 A GB1191466 A GB 1191466A GB 48028/67 A GB48028/67 A GB 48028/67A GB 4802867 A GB4802867 A GB 4802867A GB 1191466 A GB1191466 A GB 1191466A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- glow
- character
- lead
- electrodes
- 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
Abstract
1,191,466. Glow discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 Oct., 1967 [26 Oct., 1966], No. 48028/67. Heading H1D. In a glow-discharge character-display tube having a number of electrodes 0<SP>1</SP>-9<SP>1</SP> in the form of characters arranged one behind the other, each character electrode is of chromiumnickel-steel alloy and is secured directly to a corresponding lead-in wire sealed through the base 17 of the tube and is supported by it. The lead-in wires extend through a mica centring plate 19 which is shielded by a metal plate 20 supported by two further lead-in wires (11 and 14, Fig. 2, not shown), and the character electrodes are preferably stud-welded to the ends of corresponding lead-in wires which are preferably of the same material. For shockresistant arrangements the character electrodes may be provided at their upper ends with lugs (not shown) secured in an insulating rod (not shown) which serves only to connect the electrodes together. An additional character electrode (25, Figs. 2 and 3, not shown) in the form of a full stop is preferably formed of a material of lower work function, e.g. iron or molybdenum, so that it will glow sufficiently brightly without using a higher voltage. A lead-in wire 15 has its end projecting above the plate 20 and is connected by a high resistance to the cathode supply voltage so that it does not glow but pre-ionizes the gas to increase the ignition speed of the characters. An anode (Fig. 1, not shown) is welded to the plate 20 and at its upper end carries a sheet metal support for a glass tube (23, Fig. 3, not shown) containing mercury. The metal support may be heated inductively or by radiation to release the mercury after the tube has been sealed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6615123A NL6615123A (en) | 1966-10-26 | 1966-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1191466A true GB1191466A (en) | 1970-05-13 |
Family
ID=19798002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48028/67A Expired GB1191466A (en) | 1966-10-26 | 1967-10-23 | Glow-Discharge Character-Display Tube and Method of Manufacturing such a Tube. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3473068A (en) |
| AT (1) | AT287858B (en) |
| BE (1) | BE705643A (en) |
| CH (1) | CH468076A (en) |
| DE (1) | DE1589267A1 (en) |
| ES (1) | ES346374A1 (en) |
| GB (1) | GB1191466A (en) |
| NL (1) | NL6615123A (en) |
| NO (1) | NO121002B (en) |
| SE (1) | SE326777B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272674A (en) * | 1968-07-05 | 1972-05-03 | Sperry Rand Corp | Gas discharge indicators |
| US4309995A (en) * | 1980-01-28 | 1982-01-12 | Sacco Susan M | Vaginal irrigation apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2578370A (en) * | 1950-04-25 | 1951-12-11 | Bell Telephone Labor Inc | Gaseous discharge device |
| US2618760A (en) * | 1950-11-06 | 1952-11-18 | Northrop Aircraft Inc | Glow tube anode construction |
| US2756366A (en) * | 1954-04-01 | 1956-07-24 | Nat Union Electric Corp | Luminous discharge tube and system |
| US2991388A (en) * | 1958-07-02 | 1961-07-04 | Ericsson Telephone Ltd | Display devices employing glow discharge tubes |
| US2991387A (en) * | 1958-09-22 | 1961-07-04 | Burroughs Corp | Indicator tube |
| US3136911A (en) * | 1961-12-27 | 1964-06-09 | Tung Sol Electric Inc | High vacuum display device |
| US3318649A (en) * | 1963-10-11 | 1967-05-09 | King Lab Inc | Charging electronic tubes with mercury |
| US3358176A (en) * | 1965-07-19 | 1967-12-12 | Burroughs Corp | Multiple cathode indicator tube having no obstruction in the form of support disks |
-
1966
- 1966-10-26 NL NL6615123A patent/NL6615123A/xx unknown
-
1967
- 1967-10-14 DE DE19671589267 patent/DE1589267A1/en active Pending
- 1967-10-19 US US676433A patent/US3473068A/en not_active Expired - Lifetime
- 1967-10-23 GB GB48028/67A patent/GB1191466A/en not_active Expired
- 1967-10-23 AT AT955067A patent/AT287858B/en not_active IP Right Cessation
- 1967-10-23 NO NO170239A patent/NO121002B/no unknown
- 1967-10-23 SE SE14495/67A patent/SE326777B/xx unknown
- 1967-10-23 CH CH1477667A patent/CH468076A/en unknown
- 1967-10-24 ES ES346374A patent/ES346374A1/en not_active Expired
- 1967-10-25 BE BE705643D patent/BE705643A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES346374A1 (en) | 1969-02-16 |
| BE705643A (en) | 1968-04-25 |
| SE326777B (en) | 1970-08-03 |
| AT287858B (en) | 1971-02-10 |
| NL6615123A (en) | 1968-04-29 |
| US3473068A (en) | 1969-10-14 |
| CH468076A (en) | 1969-01-31 |
| NO121002B (en) | 1971-01-04 |
| DE1589267A1 (en) | 1970-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |