GB548447A - Improvements in and relating to electrical indicating instruments - Google Patents

Improvements in and relating to electrical indicating instruments

Info

Publication number
GB548447A
GB548447A GB9172/41A GB917241A GB548447A GB 548447 A GB548447 A GB 548447A GB 9172/41 A GB9172/41 A GB 9172/41A GB 917241 A GB917241 A GB 917241A GB 548447 A GB548447 A GB 548447A
Authority
GB
United Kingdom
Prior art keywords
relating
indicating instruments
electrical indicating
simmonds
xix
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
GB9172/41A
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.)
SIMMONDS DEV CORP Ltd
Original Assignee
SIMMONDS DEV CORP 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 SIMMONDS DEV CORP Ltd filed Critical SIMMONDS DEV CORP Ltd
Publication of GB548447A publication Critical patent/GB548447A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
    • G01R5/14—Moving-iron instruments
    • G01R5/16—Moving-iron instruments with pivoting magnet

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Abstract

548,447. Heat treating. SIMMONDS DEVELOPMENT CORPORATION, Ltd. July 21, 1941, No. 9172. Convention date, Aug. 23, 1940. Drawings to Specification. [Class 72] [Also in Groups XXXVIII and XIX] . The casing of an indicating instrument is heated to about 1600‹F. in the absence of oxygen, soaked at 1600‹F. for about two hours, and cooled to room temperature at a rate not greater than 100‹F. per hour, after which it is magnetized.
GB9172/41A 1940-08-23 1941-07-21 Improvements in and relating to electrical indicating instruments Expired GB548447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US548447XA 1940-08-23 1940-08-23

Publications (1)

Publication Number Publication Date
GB548447A true GB548447A (en) 1942-10-09

Family

ID=21993873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9172/41A Expired GB548447A (en) 1940-08-23 1941-07-21 Improvements in and relating to electrical indicating instruments

Country Status (1)

Country Link
GB (1) GB548447A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1516090B1 (en) * 1963-08-29 1970-07-23 Simmonds Precision Products Measuring bridge circuit
EP0405010A2 (en) * 1989-06-29 1991-01-02 VDO Adolf Schindling AG Moving-magnet quotient-measuring instrument
GB2267345A (en) * 1992-04-27 1993-12-01 Delco Electronics Corp Spindle of instrumentation apparatus.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1516090B1 (en) * 1963-08-29 1970-07-23 Simmonds Precision Products Measuring bridge circuit
EP0405010A2 (en) * 1989-06-29 1991-01-02 VDO Adolf Schindling AG Moving-magnet quotient-measuring instrument
EP0405010A3 (en) * 1989-06-29 1992-01-08 Vdo Adolf Schindling Ag Moving-magnet quotient-measuring instrument
GB2267345A (en) * 1992-04-27 1993-12-01 Delco Electronics Corp Spindle of instrumentation apparatus.
GB2267345B (en) * 1992-04-27 1995-05-31 Delco Electronics Corp Spindle of instrumentation apparatus

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