GB1268028A - Manufacture of colour television shadow masks - Google Patents
Manufacture of colour television shadow masksInfo
- Publication number
- GB1268028A GB1268028A GB30783/70A GB3078370A GB1268028A GB 1268028 A GB1268028 A GB 1268028A GB 30783/70 A GB30783/70 A GB 30783/70A GB 3078370 A GB3078370 A GB 3078370A GB 1268028 A GB1268028 A GB 1268028A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dies
- plug
- shadow mask
- foraminous portion
- cam
- 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
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
- H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/496—Multiperforated metal article making
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84180569A | 1969-07-15 | 1969-07-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1268028A true GB1268028A (en) | 1972-03-22 |
Family
ID=25285723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30783/70A Expired GB1268028A (en) | 1969-07-15 | 1970-06-25 | Manufacture of colour television shadow masks |
Country Status (7)
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3724255A (en) * | 1971-04-29 | 1973-04-03 | A Molino | Duct forming apparatus |
US3875787A (en) * | 1973-08-13 | 1975-04-08 | Mikhail Grigoriev Mescheryakov | Device for shaping rectangular magnetic core from circular magnetic core |
NL7508287A (nl) * | 1975-07-11 | 1977-01-13 | Philips Nv | Werkwijze en inrichting voor het in vorm trek- ken van een schaduwmasker en schaduwmasker ge- trokken volgens deze werkwijze of met deze in- richting. |
US4331017A (en) * | 1980-12-11 | 1982-05-25 | Joseph Bulso, Jr. | High reduction process and apparatus |
US4615205A (en) * | 1984-06-18 | 1986-10-07 | Rca Corporation | Forming a shadow mask from a flat blank |
EP0179506B1 (en) * | 1984-09-28 | 1989-08-02 | Koninklijke Philips Electronics N.V. | Method of drape drawing a shadow mask for a colour display tube and device for such a method |
US4719787A (en) * | 1986-08-29 | 1988-01-19 | Rca Corporation | Apparatus for forming a shadow mask |
US5595086A (en) * | 1994-08-02 | 1997-01-21 | Aluminum Company Of America | Apparatus for calibrating hollow nonsymmetrical multiplane extrusions and associated method |
DE29612192U1 (de) * | 1996-07-16 | 1997-10-09 | KUKA Schweissanlagen GmbH, 86165 Augsburg | Bördelvorrichtung |
DE10224711A1 (de) * | 2002-06-04 | 2004-01-08 | Daimlerchrysler Ag | Verfahren zum optimierenden Einstellen einer Umformgeometrie eines Umformwerkzeugs, entsprechendes Umformwerkzeug und geeignetes Versuchswerkzeug |
CN117415209B (zh) * | 2023-12-19 | 2024-03-08 | 福建祥鑫新能源汽车配件制造有限公司 | 一种电池托盘模具用挤压装置 |
-
1969
- 1969-07-15 US US841805A patent/US3621699A/en not_active Expired - Lifetime
-
1970
- 1970-06-25 GB GB30783/70A patent/GB1268028A/en not_active Expired
- 1970-07-10 FR FR7025914A patent/FR2055079A5/fr not_active Expired
- 1970-07-10 BE BE753300D patent/BE753300A/xx unknown
- 1970-07-14 DE DE19702034735 patent/DE2034735A1/de active Pending
- 1970-07-15 JP JP45061452A patent/JPS4843075B1/ja active Pending
- 1970-07-15 NL NL7010470A patent/NL7010470A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US3621699A (en) | 1971-11-23 |
JPS4843075B1 (US07534539-20090519-C00280.png) | 1973-12-17 |
DE2034735A1 (de) | 1971-02-04 |
NL7010470A (US07534539-20090519-C00280.png) | 1971-01-19 |
FR2055079A5 (US07534539-20090519-C00280.png) | 1971-05-07 |
BE753300A (US07534539-20090519-C00280.png) | 1970-12-16 |
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