GB871147A - Improvements relating to apparatus for defining the vertical - Google Patents

Improvements relating to apparatus for defining the vertical

Info

Publication number
GB871147A
GB871147A GB6821/57A GB682157A GB871147A GB 871147 A GB871147 A GB 871147A GB 6821/57 A GB6821/57 A GB 6821/57A GB 682157 A GB682157 A GB 682157A GB 871147 A GB871147 A GB 871147A
Authority
GB
United Kingdom
Prior art keywords
sphere
spheres
jets
housing
magslip
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
GB6821/57A
Other languages
English (en)
Inventor
Humphrey Gordon Nelson
William Nicoll
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.)
Ferranti International PLC
Original Assignee
Ferranti 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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB6821/57A priority Critical patent/GB871147A/en
Priority to NL225273A priority patent/NL106240C/xx
Publication of GB871147A publication Critical patent/GB871147A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
    • B41B21/16—Optical systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/465—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using masks, e.g. light-switching masks
    • B41J2/4655—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using masks, e.g. light-switching masks using character templates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/44—Rotary gyroscopes for indicating the vertical

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Linear Motors (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Special Spraying Apparatus (AREA)
GB6821/57A 1957-03-01 1957-03-01 Improvements relating to apparatus for defining the vertical Expired GB871147A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB6821/57A GB871147A (en) 1957-03-01 1957-03-01 Improvements relating to apparatus for defining the vertical
NL225273A NL106240C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1957-03-01 1958-02-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6821/57A GB871147A (en) 1957-03-01 1957-03-01 Improvements relating to apparatus for defining the vertical

Publications (1)

Publication Number Publication Date
GB871147A true GB871147A (en) 1961-06-21

Family

ID=9821376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6821/57A Expired GB871147A (en) 1957-03-01 1957-03-01 Improvements relating to apparatus for defining the vertical

Country Status (2)

Country Link
GB (1) GB871147A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL106240C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207979A (en) * 1961-08-01 1965-09-21 Gen Motors Corp Measurement of inaccuracies in a surface of revolution
GB2136870A (en) * 1983-01-10 1984-09-26 Cannings John Arthur Pressurised spherical interfaces
CN103344229A (zh) * 2013-07-05 2013-10-09 西北工业大学 基于soi硅片的微型半球谐振陀螺及其制备方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207979A (en) * 1961-08-01 1965-09-21 Gen Motors Corp Measurement of inaccuracies in a surface of revolution
GB2136870A (en) * 1983-01-10 1984-09-26 Cannings John Arthur Pressurised spherical interfaces
CN103344229A (zh) * 2013-07-05 2013-10-09 西北工业大学 基于soi硅片的微型半球谐振陀螺及其制备方法

Also Published As

Publication number Publication date
NL106240C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1963-10-15

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