GB359822A - Improvements in and relating to means for graduating record surfaces photographically - Google Patents

Improvements in and relating to means for graduating record surfaces photographically

Info

Publication number
GB359822A
GB359822A GB1802/31A GB180231A GB359822A GB 359822 A GB359822 A GB 359822A GB 1802/31 A GB1802/31 A GB 1802/31A GB 180231 A GB180231 A GB 180231A GB 359822 A GB359822 A GB 359822A
Authority
GB
United Kingdom
Prior art keywords
rays
lens
path
record
aperture
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
GB1802/31A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB359822A publication Critical patent/GB359822A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/20—Cathode-ray oscilloscopes
    • G01R13/22—Circuits therefor
    • G01R13/30—Circuits for inserting reference markers, e.g. for timing, for calibrating, for frequency marking

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

359,822. Recording-apparatus. SIE-- MENS & HALSKE AKT.-GES., Siemens-- stadt, Berlin. Jan. 19, 1931, No. 1802. Convention date, April 14, 1930. Addition to 359,810. [Class 106 (iv).] Graduation of record surface.-In a photographic recording device as described in the parent Specification for projecting time ordinates transversely upon the record surface the length of the ordinates is regulated by interposing an additional lens in the path of the light rays. As shown, rays of light from a source 1 are passed through a condenserlens 2 and an apertured screen 3 to a rotating or oscillating lens 5 and are reflected and focused by a cylindrical lens on a record drum. The length of the ordinate thus produced depends upon the angle of aperture of the rays through the screen 3. To enlarge this aperture a condensing lens 7 is mounted in the path of the incident rays or a concave lens can be placed in the path of the reflected rays.
GB1802/31A 1930-04-14 1931-01-19 Improvements in and relating to means for graduating record surfaces photographically Expired GB359822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE359822X 1930-04-14

Publications (1)

Publication Number Publication Date
GB359822A true GB359822A (en) 1931-10-29

Family

ID=6291287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1802/31A Expired GB359822A (en) 1930-04-14 1931-01-19 Improvements in and relating to means for graduating record surfaces photographically

Country Status (1)

Country Link
GB (1) GB359822A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784050A (en) * 1952-12-27 1957-03-05 Gen Electric Current and force measuring instrument for welding machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784050A (en) * 1952-12-27 1957-03-05 Gen Electric Current and force measuring instrument for welding machines

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