GB638674A - Apparatus for lamp stem manufacture - Google Patents
Apparatus for lamp stem manufactureInfo
- Publication number
- GB638674A GB638674A GB22083/47A GB2208347A GB638674A GB 638674 A GB638674 A GB 638674A GB 22083/47 A GB22083/47 A GB 22083/47A GB 2208347 A GB2208347 A GB 2208347A GB 638674 A GB638674 A GB 638674A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaws
- flare
- sealing
- cone
- throat
- 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
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/32—Sealing leading-in conductors
Abstract
638,674. Making electric lamp stems. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 8, 1947, No. 22083. Convention date, Oct. 1, 1941. [Class 39 (ii)] [Also in Group XL (a)] Apparatus arranged to be embodied in a turret machine for making electric lamp stems comprises a pair of jaws 1, 2 at the extremities of arms 3, 4 which pivot about studs 5 on a head 6, the jaws being so shaped that, when abutting, they form a hollow, inverted, truncated circular cone adapted to receive the flange 17 of a flare 7, Fig. 2, and, in order to ensure that leading-in wires and an exhausting tube supported by a block 11 shall be aligned properly preparatory to sealing within the throat 16 of the flare, the periphery of the base of the cone is provided with three inwardly-directed radial tangs 18 which are spaced equidistantly and each located immediately above a nub 19 on the inner surface of the cone. The meeting edges of the jaws are milled or bevelled so that one overlaps the other to form a baffle which shields the flare flange from the flame applied to the throat 16. The block 11 is provided with two small holes 14 to receive the lead-in wires during sealing, and a baffle 15 protects the jaw-actuating mechanism from the sealing flames. The opening and closing of the jaws is effected in known manner by link mechanism actuated by a cam shaft 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US413140A US2322728A (en) | 1941-10-01 | 1941-10-01 | Apparatus for lamp stem manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB638674A true GB638674A (en) | 1950-06-14 |
Family
ID=23636013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22083/47A Expired GB638674A (en) | 1941-10-01 | 1947-08-08 | Apparatus for lamp stem manufacture |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2322728A (en) |
| GB (1) | GB638674A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535630A (en) * | 1944-11-25 | 1950-12-26 | Sylvania Electric Prod | Lamp flare holder |
| US2455317A (en) * | 1945-08-03 | 1948-11-30 | Nat Union Radio Corp | Tube sealing machine |
| US2549046A (en) * | 1949-12-17 | 1951-04-17 | Sylvania Electric Prod | Guide for electrode mounts |
| US2691850A (en) * | 1953-02-27 | 1954-10-19 | Westinghouse Electric Corp | Heat baffle for automatic sealing machines |
-
1941
- 1941-10-01 US US413140A patent/US2322728A/en not_active Expired - Lifetime
-
1947
- 1947-08-08 GB GB22083/47A patent/GB638674A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2322728A (en) | 1943-06-22 |
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