GB703907A - Improvements in compensating hairsprings - Google Patents

Improvements in compensating hairsprings

Info

Publication number
GB703907A
GB703907A GB13567/50A GB1356750A GB703907A GB 703907 A GB703907 A GB 703907A GB 13567/50 A GB13567/50 A GB 13567/50A GB 1356750 A GB1356750 A GB 1356750A GB 703907 A GB703907 A GB 703907A
Authority
GB
United Kingdom
Prior art keywords
compensating
per cent
hairsprings
hairspring
exceeding
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
GB13567/50A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB703907A publication Critical patent/GB703907A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A compensating hairspring is formed from an alloy of Ni 24-27 per cent., Nb 1-5 per cent., Mn, 0.5-1 per cent. and the balance Fe with or without Al not exceeding 1/4 Nb and with or without C 02-0.7, the total of Nb, Mn, Al and C being 1.5-6 per cent., the hairspring being fixed at a temperature not exceeding 550 DEG C. and the iron in the hairspring being in the a state. Specifications 3846/12, [Class 82 (i)], and 383.174 are referred to.
GB13567/50A 1949-06-20 1950-05-31 Improvements in compensating hairsprings Expired GB703907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH703907X 1949-06-20

Publications (1)

Publication Number Publication Date
GB703907A true GB703907A (en) 1954-02-10

Family

ID=4530231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13567/50A Expired GB703907A (en) 1949-06-20 1950-05-31 Improvements in compensating hairsprings

Country Status (1)

Country Link
GB (1) GB703907A (en)

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