GB240895A - Improvements in or relating to contacts for use in electrical apparatus - Google Patents

Improvements in or relating to contacts for use in electrical apparatus

Info

Publication number
GB240895A
GB240895A GB1412824A GB1412824A GB240895A GB 240895 A GB240895 A GB 240895A GB 1412824 A GB1412824 A GB 1412824A GB 1412824 A GB1412824 A GB 1412824A GB 240895 A GB240895 A GB 240895A
Authority
GB
United Kingdom
Prior art keywords
contacts
per cent
electrical apparatus
relating
lead
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
GB1412824A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority to NL15597D priority Critical patent/NL15597C/xx
Priority to DE1924W0066245 priority patent/DE467107C/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB1412824A priority patent/GB240895A/en
Publication of GB240895A publication Critical patent/GB240895A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/025—Composite material having copper as the basic material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Contacts (AREA)
  • Conductive Materials (AREA)

Abstract

240,895. Western Electric Co., Ltd., (Western Electric Co., Inc.). June 11, 1924. Alloys. - Contacts for use in electrical apparatus, particularly automatic switching apparatus used in automatic telephone exchange systems, comprise members formed of an alloy of phosphor-bronze and lead. A preferred composition contains, in addition to copper, 4-5.5- per cent of tin, 1-4 per cent of lead, and 0.05- and 0.25 per cent of phosphorus.
GB1412824A 1924-06-11 1924-06-11 Improvements in or relating to contacts for use in electrical apparatus Expired GB240895A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL15597D NL15597C (en) 1924-06-11
DE1924W0066245 DE467107C (en) 1924-06-11 1924-05-25 Contact metal
GB1412824A GB240895A (en) 1924-06-11 1924-06-11 Improvements in or relating to contacts for use in electrical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1412824A GB240895A (en) 1924-06-11 1924-06-11 Improvements in or relating to contacts for use in electrical apparatus

Publications (1)

Publication Number Publication Date
GB240895A true GB240895A (en) 1925-10-12

Family

ID=10035487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1412824A Expired GB240895A (en) 1924-06-11 1924-06-11 Improvements in or relating to contacts for use in electrical apparatus

Country Status (3)

Country Link
DE (1) DE467107C (en)
GB (1) GB240895A (en)
NL (1) NL15597C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621745Y2 (en) * 1987-05-08 1994-06-08 三菱鉛筆株式会社 Valve device for writing or applying liquid material

Also Published As

Publication number Publication date
DE467107C (en) 1928-10-18
NL15597C (en)

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