GB441194A - Improvements in and relating to electric control, regulating, signalling and/or indicating systems employing photo-electric means - Google Patents

Improvements in and relating to electric control, regulating, signalling and/or indicating systems employing photo-electric means

Info

Publication number
GB441194A
GB441194A GB1981734A GB1981734A GB441194A GB 441194 A GB441194 A GB 441194A GB 1981734 A GB1981734 A GB 1981734A GB 1981734 A GB1981734 A GB 1981734A GB 441194 A GB441194 A GB 441194A
Authority
GB
United Kingdom
Prior art keywords
signalling
electric
regulating
relating
photo
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
GB1981734A
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
Priority to GB1981734A priority Critical patent/GB441194A/en
Publication of GB441194A publication Critical patent/GB441194A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/14—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

Landscapes

  • Electron Sources, Ion Sources (AREA)

Abstract

441,194. Electric signalling and remote - control systems. BARON, H., 231, Strand, London-(FitzGerald, A. S.; 433, Warwick Road, Wynnewood, Pennsylvania, U.S.A.) April 6, 1934, No. 19817. Divided out of 413,269. Drawings to Specification. [Class 40 (i)] In an electric signalling or remote-control system employing two photo-electric devices, the light sources or the photo-electric devices or both are fed from opposite phases of an alternating current supply to prevent interference between the light beams. The description is repeated from Specification 413,269 and Specifications 274,070, [Class 38 (v)], and 418,273 also are referred to. The invention may be applied to two-way signalling or control.
GB1981734A 1934-04-06 1934-04-06 Improvements in and relating to electric control, regulating, signalling and/or indicating systems employing photo-electric means Expired GB441194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1981734A GB441194A (en) 1934-04-06 1934-04-06 Improvements in and relating to electric control, regulating, signalling and/or indicating systems employing photo-electric means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1981734A GB441194A (en) 1934-04-06 1934-04-06 Improvements in and relating to electric control, regulating, signalling and/or indicating systems employing photo-electric means

Publications (1)

Publication Number Publication Date
GB441194A true GB441194A (en) 1936-01-06

Family

ID=10135718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1981734A Expired GB441194A (en) 1934-04-06 1934-04-06 Improvements in and relating to electric control, regulating, signalling and/or indicating systems employing photo-electric means

Country Status (1)

Country Link
GB (1) GB441194A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752550C (en) * 1939-06-25 1953-06-15 Lorenz C Ag Arrangement for angle or command transmission through a stroboscopic display device
US3262047A (en) * 1962-09-24 1966-07-19 Ibm Rectifying circuits using photoelectric devices
EP1649479B1 (en) * 2003-07-22 2013-09-04 Yeda Research And Development Co., Ltd. Electron emission device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752550C (en) * 1939-06-25 1953-06-15 Lorenz C Ag Arrangement for angle or command transmission through a stroboscopic display device
US3262047A (en) * 1962-09-24 1966-07-19 Ibm Rectifying circuits using photoelectric devices
EP1649479B1 (en) * 2003-07-22 2013-09-04 Yeda Research And Development Co., Ltd. Electron emission device

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