GB840194A - Improvements in or relating to methods of forming a surface having a pattern of electrically conducting material - Google Patents

Improvements in or relating to methods of forming a surface having a pattern of electrically conducting material

Info

Publication number
GB840194A
GB840194A GB3521657A GB3521657A GB840194A GB 840194 A GB840194 A GB 840194A GB 3521657 A GB3521657 A GB 3521657A GB 3521657 A GB3521657 A GB 3521657A GB 840194 A GB840194 A GB 840194A
Authority
GB
United Kingdom
Prior art keywords
pattern
glass
recessed pattern
disc
conducting material
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
GB3521657A
Inventor
Trevor Roberts
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3521657A priority Critical patent/GB840194A/en
Publication of GB840194A publication Critical patent/GB840194A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin

Abstract

840,194. Rotary distributers. GENERAL ELECTRIC CO. Ltd. Nov. 7, 1958 [Nov. 12, 1957], No. 35216/57. Class 38 (5). [Also in Group XV] The surface of a body of electrically-conducting material is formed with a recessed pattern corresponding to a desired pattern of insulating material, the recessed pattern is filled with molten glass, and, after solidification of the glass, the surface is ground or similarly treated to provide a smooth surface. The recessed pattern may be formed by etching, milling, coining or casting. In an example, a steel disc about “-inch thick is electrolytically or otherwise etched using a resist to form a recessed pattern 0.008 to 0.010 inch deep on one surface. The resist is removed, and the recessed pattern filled to overflowing with molten glass. Known bonding techniques may be employed. After solidification of the glass, the surface is ground or otherwise machined to produce a smooth surface. The glass may be that described in Specification 817,636. As shown in Fig. 1, a disc for use in a commutator type switching arrangement comprises a pattern 1 of insulating material and a pattern 2 of metal. In use, brush-type contacts are rotated relatively to the disc.
GB3521657A 1957-11-12 1957-11-12 Improvements in or relating to methods of forming a surface having a pattern of electrically conducting material Expired GB840194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3521657A GB840194A (en) 1957-11-12 1957-11-12 Improvements in or relating to methods of forming a surface having a pattern of electrically conducting material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3521657A GB840194A (en) 1957-11-12 1957-11-12 Improvements in or relating to methods of forming a surface having a pattern of electrically conducting material

Publications (1)

Publication Number Publication Date
GB840194A true GB840194A (en) 1960-07-06

Family

ID=10375191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3521657A Expired GB840194A (en) 1957-11-12 1957-11-12 Improvements in or relating to methods of forming a surface having a pattern of electrically conducting material

Country Status (1)

Country Link
GB (1) GB840194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206975B (en) * 1961-09-04 1965-12-16 S E A Soc D Electronique Et D Repeatedly usable transfer matrix for generating printed circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206975B (en) * 1961-09-04 1965-12-16 S E A Soc D Electronique Et D Repeatedly usable transfer matrix for generating printed circuits

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