GB543079A - Improvements in machines for use in the production of electric lamps and similar devices - Google Patents
Improvements in machines for use in the production of electric lamps and similar devicesInfo
- Publication number
- GB543079A GB543079A GB16350/40A GB1635040A GB543079A GB 543079 A GB543079 A GB 543079A GB 16350/40 A GB16350/40 A GB 16350/40A GB 1635040 A GB1635040 A GB 1635040A GB 543079 A GB543079 A GB 543079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- exhaust
- mercury
- bracket
- drop
- 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
- 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
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
543,079. Exhausting and filling electric lamps and discharge devices. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 11, 1940, No. 16350. Convention date, Nov. 9, 1939. [Class 8 (i)] [Also in Group XL] An electric discharge lamp 17 is inserted between spring grips, and its exhaust tube is pushed into an exhaust port 23, with a gas-tight fit; the exhaust port is mounted on a bracket 33 extending from a rotary turret and carrying a mercury dispenser 92 such as described in Specification 531,811, [Group XVIII], which dispenser delivers a measured drop of mercury to the device at requisite times. The bracket and device are carried by the rotation through a series of stations in which successively, after the insertion of the lamp (1) an upper valve section 40 connected to the turret aligns a passage 47 in this section with an exhaust passage 46 in the stationary lower section : (2) the lamp still under suction is carried through an arcuate oven, and if desired a leak detector comes into action and may close a pinch clamp, flattening a rubber connection 52 in the bracket, or may give an alarm, or close the connection between the exhaust port 23 and its exhaust where this serves a number of lamps; (3) the lamp leads make electrical connection, to heat and decompose barium carbonate in the lamp, rendering it emissive ; (4) the current is broken and the dispenser caused to discharge a drop of mercury, under the action of the cam controlling the pinch clamp ; (5) the cathodes are heated to full operating temperature, and, later,'full potential is applied to them ; (6) the upper end of the lamp is carried into an oven and pre-heated, after breaking the current ; (7) the exhaust is increased and then cut off, a second drop of mercury added, and a dose of gas supplied ; (8) the exhaust tube is sealed by a gas jet; and (9) finally the lamp and exhaust tube stub are removed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US303639A US2247513A (en) | 1939-11-09 | 1939-11-09 | Exhausting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB543079A true GB543079A (en) | 1942-02-09 |
Family
ID=23173027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16350/40A Expired GB543079A (en) | 1939-11-09 | 1940-11-11 | Improvements in machines for use in the production of electric lamps and similar devices |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2247513A (en) |
| FR (1) | FR867671A (en) |
| GB (1) | GB543079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140287645A1 (en) * | 2011-11-04 | 2014-09-25 | Auralight International Ab | Vertical pumping apparatus and method for distribution mercury in a pumping and lamp gas-filling process |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2565298A (en) * | 1946-02-07 | 1951-08-21 | Gen Electric | Evacuating and gas charging apparatus with movable support and vacuum pump carried thereon |
| US2449637A (en) * | 1946-09-06 | 1948-09-21 | Gen Electric | Method and apparatus for manufacturing fluorescent lamps |
| US2542636A (en) * | 1947-12-08 | 1951-02-20 | Gen Electric | Gas charging apparatus with gas pressure reducing valve |
| US2527185A (en) * | 1948-05-04 | 1950-10-24 | George R Willis | Method of and means for filling lighting tubes with rare gas |
| US2494923A (en) * | 1948-09-03 | 1950-01-17 | Gen Electric | Method and apparatus for bending and exhausting tubular lamps |
| US2532315A (en) * | 1949-04-02 | 1950-12-05 | Eastman Kodak Co | Apparatus and process for evacuating electronic tubes and the like |
| US2561838A (en) * | 1949-10-28 | 1951-07-24 | Gen Electric | Tipping-off method |
| US2564839A (en) * | 1950-04-07 | 1951-08-21 | Nat Video Corp | Vacuum tube assembly apparatus |
| US2670115A (en) * | 1951-10-26 | 1954-02-23 | Westinghouse Electric Corp | Lamp holder |
| US2812228A (en) * | 1954-05-13 | 1957-11-05 | Westinghouse Electric Corp | Method of exhausting lamps |
| US2940742A (en) * | 1958-06-03 | 1960-06-14 | Gen Electric | Apparatus for heating exhaust tubes |
| US2951513A (en) * | 1958-10-03 | 1960-09-06 | Westinghouse Electric Corp | Leak-check valve |
| DE3442362A1 (en) * | 1984-11-20 | 1986-05-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | DEVICE FOR PRODUCING CONTINUOUSLY CONTINUOUS CONNECTIONS BETWEEN THE CAVES OF LAMP GLASS BULBS AND PRESSURE SOURCES FOR GASES AND / OR VACUUM SOURCES |
| CN102592921B (en) * | 2012-02-29 | 2014-11-05 | 湖北标华电器科技有限公司 | Automatic mercury injector |
| CN102610464B (en) * | 2012-03-27 | 2014-07-09 | 李家凌 | Improved structure of multi-station clamping and sealing machine for manufacturing electric light source |
| CN102664140A (en) * | 2012-04-19 | 2012-09-12 | 德清明裕照明电器有限公司 | Driving mechanism of wick turnplate |
| CN114582689A (en) * | 2020-12-01 | 2022-06-03 | 佛山市创瀛智能自动化设备有限责任公司 | Air charging and discharging device and air charging and discharging process of lamp tube |
-
1939
- 1939-11-09 US US303639A patent/US2247513A/en not_active Expired - Lifetime
-
1940
- 1940-11-09 FR FR867671D patent/FR867671A/en not_active Expired
- 1940-11-11 GB GB16350/40A patent/GB543079A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140287645A1 (en) * | 2011-11-04 | 2014-09-25 | Auralight International Ab | Vertical pumping apparatus and method for distribution mercury in a pumping and lamp gas-filling process |
| US9033756B2 (en) * | 2011-11-04 | 2015-05-19 | Auralight International Ab | Vertical pumping apparatus and method for distribution mercury in a pumping and lamp gas-filling process |
Also Published As
| Publication number | Publication date |
|---|---|
| US2247513A (en) | 1941-07-01 |
| FR867671A (en) | 1941-11-21 |
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