GB1278156A - Magnetic reed contact unit producing apparatus - Google Patents

Magnetic reed contact unit producing apparatus

Info

Publication number
GB1278156A
GB1278156A GB31049/70A GB3104970A GB1278156A GB 1278156 A GB1278156 A GB 1278156A GB 31049/70 A GB31049/70 A GB 31049/70A GB 3104970 A GB3104970 A GB 3104970A GB 1278156 A GB1278156 A GB 1278156A
Authority
GB
United Kingdom
Prior art keywords
contact
tube
sealed
contact member
unit
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
Application number
GB31049/70A
Inventor
William Dennis Bishop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB31049/70A priority Critical patent/GB1278156A/en
Priority to US00131194A priority patent/US3750276A/en
Priority to BE765724A priority patent/BE765724A/en
Priority to DE19712119215 priority patent/DE2119215A1/en
Priority to FR717123077A priority patent/FR2096509B1/fr
Publication of GB1278156A publication Critical patent/GB1278156A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/005—Apparatus or processes specially adapted for the manufacture of electric switches of reed switches
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Abstract

1278156 Manufacture of glass sealed magnetic reed contact units PLESSEY CO Ltd 19 April 1971 [26 June 1970] 31049/70 Heading C1M [Also in Division H1] In the manufacturing process for sealed magnetic reed contact units a first contact member 2 is supported at one end by a support member 6 so that its longitudinal axis is vertical and then a second contact member 1 is magnetically supported on the first contact member by energization of a coil 7 whilst a further removable magnetic field is established in the vicinity of the second contact member 1 for maintaining the contact alignment during subsequent steps in manufacture. Said further magnetic field may be provided by a unit 8 having a coil 8b and magnetic parts 8a, 8c, and pivotable about an axis X-X to allow the glass tube 9 to be placed over the reeds before sealing to the reeds. The' tube is first sealed to the second contact member 1 before the magnetic fields are removed so that the contact gap can be set before the tube is sealed to the first contact member 2. The unit 8 may have a permanent magnet instead of a coil. The contact areas of the reeds 1, 2, may be subjected to infra-red radiation during tube sealing or separately to change the characteristics of a contact coating thereon (e.g. so as to anneal, diffuse or outgas the coating). If the apparatus is arranged so that the support member 6 is at the top and the unit 8 is at the bottom there is an improvement in the shape and strength of the seals at the ends of the tube 9 of the finished contact unit. Sealing may be effected in a sealed housing containing a gas to be enclosed in the tube 9.
GB31049/70A 1970-06-26 1970-06-26 Magnetic reed contact unit producing apparatus Expired GB1278156A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB31049/70A GB1278156A (en) 1970-06-26 1970-06-26 Magnetic reed contact unit producing apparatus
US00131194A US3750276A (en) 1970-06-26 1971-04-05 Magnetic reed contact unit producing apparatus
BE765724A BE765724A (en) 1970-06-26 1971-04-14 EQUIPMENT FOR THE PRODUCTION OF A MAGNETIC BLADE CONTACT UNIT
DE19712119215 DE2119215A1 (en) 1970-06-26 1971-04-21 Method and device for the production of magnetic reed contacts
FR717123077A FR2096509B1 (en) 1970-06-26 1971-06-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31049/70A GB1278156A (en) 1970-06-26 1970-06-26 Magnetic reed contact unit producing apparatus

Publications (1)

Publication Number Publication Date
GB1278156A true GB1278156A (en) 1972-06-14

Family

ID=10317199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31049/70A Expired GB1278156A (en) 1970-06-26 1970-06-26 Magnetic reed contact unit producing apparatus

Country Status (5)

Country Link
US (1) US3750276A (en)
BE (1) BE765724A (en)
DE (1) DE2119215A1 (en)
FR (1) FR2096509B1 (en)
GB (1) GB1278156A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5365655B2 (en) * 2011-03-16 2013-12-11 株式会社安川電機 Reed switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237687B (en) * 1961-09-21 1967-03-30 Standard Elektrik Lorenz Ag Method and device for melting contact tongues in a glass tube
GB1032722A (en) * 1962-06-04 1966-06-15 Hitachi Ltd Improvements relating to relays having sealed magnetic contact units
GB1164533A (en) * 1967-02-10 1969-09-17 Badalex Weybridge Ltd Improvements in and relating to the Manufacture of Electric Switches
US3550268A (en) * 1969-04-24 1970-12-29 Briggs & Stratton Corp Method of assembling dry reed switches

Also Published As

Publication number Publication date
BE765724A (en) 1971-08-30
US3750276A (en) 1973-08-07
FR2096509A1 (en) 1972-02-18
FR2096509B1 (en) 1973-06-29
DE2119215A1 (en) 1971-12-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee