GB460861A - Process and apparatus for closing and sealing-off vessels, such as electric incandescent lamp bulbs, containing gas under superatmospheric pressure - Google Patents
Process and apparatus for closing and sealing-off vessels, such as electric incandescent lamp bulbs, containing gas under superatmospheric pressureInfo
- Publication number
- GB460861A GB460861A GB25944/35A GB2594435A GB460861A GB 460861 A GB460861 A GB 460861A GB 25944/35 A GB25944/35 A GB 25944/35A GB 2594435 A GB2594435 A GB 2594435A GB 460861 A GB460861 A GB 460861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- closing
- tube
- vessels
- sealing
- incandescent lamp
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000005086 pumping Methods 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/40—Closing vessels
Abstract
460,861. Controlling apparatus by light; valve relaying circuits. VEREINIGTE GLUHLAMPEN UND ELECTRICITATS AKT.-GES. Sept. 18, 1935, No. 25944. Convention date, Dec. 24, 1934. Addition to 406,185, [Group XI]. [Classes 40 (iii) and 40 (v)] [Also in Group XI] In an improvement in or modification of the process described in the parent Specification for sealing off vessels such as electric incandescent lamp bulbs containing gas under superatmosphoric pressure, the incipient change of shape of the gas inlet or pumping tube caused by the heating and the internal gas pressure operates, through the agency of a relay, a tool which effects the closing of the pumping tube. Tn the example the increase in the shadow cast by the pumping tube 5 upon a photoelectric cell 4 operates a relay comprising a gas discharge tube 7 connected through an amplifier 6 to the photo-electric cell, thereby operating an electromagnet 8 which closes jaws 10 upon the softened tube 5 and seals it off just when it is expanding. The closing of the jaws simultaneously opens an automatic switch 11 which must be closed before another tube is sealed off.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE460861X | 1934-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB460861A true GB460861A (en) | 1937-02-05 |
Family
ID=6539789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25944/35A Expired GB460861A (en) | 1934-12-24 | 1935-09-18 | Process and apparatus for closing and sealing-off vessels, such as electric incandescent lamp bulbs, containing gas under superatmospheric pressure |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2101673A (en) |
| AT (2) | AT144597B (en) |
| CH (1) | CH187532A (en) |
| FR (1) | FR46802E (en) |
| GB (1) | GB460861A (en) |
| NL (1) | NL43942C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2934860A (en) * | 1955-03-01 | 1960-05-03 | Rca Corp | Tip-off apparatus for electron tubes |
| US3079774A (en) * | 1959-04-02 | 1963-03-05 | Gen Electric | Quartz lamp sealing machine control |
| US3291589A (en) * | 1963-01-09 | 1966-12-13 | Owens Illinois Inc | Apparatus for sealing hollow glass parts |
| US3472638A (en) * | 1967-08-17 | 1969-10-14 | Kaye Thermometer Corp | Method and apparatus for making a contraction in the bore of a glass clinical thermometer |
-
1932
- 1932-06-30 AT AT144597D patent/AT144597B/en active
-
1935
- 1935-08-12 AT AT146438D patent/AT146438B/en active
- 1935-08-22 NL NL74622A patent/NL43942C/xx active
- 1935-09-18 GB GB25944/35A patent/GB460861A/en not_active Expired
- 1935-09-19 FR FR46802D patent/FR46802E/en not_active Expired
- 1935-12-10 CH CH187532D patent/CH187532A/en unknown
- 1935-12-16 US US54773A patent/US2101673A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AT146438B (en) | 1936-07-10 |
| US2101673A (en) | 1937-12-07 |
| AT144597B (en) | 1936-02-10 |
| NL43942C (en) | 1938-09-15 |
| FR46802E (en) | 1936-09-12 |
| CH187532A (en) | 1936-11-15 |
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