GB262432A - Improvements in indicating devices - Google Patents

Improvements in indicating devices

Info

Publication number
GB262432A
GB262432A GB30428/26A GB3042826A GB262432A GB 262432 A GB262432 A GB 262432A GB 30428/26 A GB30428/26 A GB 30428/26A GB 3042826 A GB3042826 A GB 3042826A GB 262432 A GB262432 A GB 262432A
Authority
GB
United Kingdom
Prior art keywords
drums
panel
carried
indicating devices
parallel
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
GB30428/26A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB262432A publication Critical patent/GB262432A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/042—Means insuring a precise reading of the dial, e.g. special scale, local illumination possibly temporary, luminous point moving with the pointer
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
    • H03J1/12—Friction drive

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

262,432. British Thomson-Houston Go., Ltd., (Assignees of Langley, R. H.). Dec. 1, 1925, [Convention date]. Wireless tuning - apparatus, adjustment and indicating devices for. - A rotatable scale and marking strip are used in conjunction with a fixed pointer carried by the panel, the axis of the controlled tuning element being parallel with the supporting panel which is provided with a viewing aperture. As 10 and frequency reading scales 9 are carried by rotatable drums 5, 8, a fixed pointer 13 being located on a bridge-piece 12 forming part of a cover-plate through which the peripheries of the drums project. The drums are frictionally coupled for simultaneous or separate movement and are geared to variable condensers having their operating-spindles parallel with the panel.
GB30428/26A 1925-12-01 1926-12-01 Improvements in indicating devices Expired GB262432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US262432XA 1925-12-01 1925-12-01

Publications (1)

Publication Number Publication Date
GB262432A true GB262432A (en) 1927-05-05

Family

ID=21830683

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30428/26A Expired GB262432A (en) 1925-12-01 1926-12-01 Improvements in indicating devices

Country Status (2)

Country Link
GB (1) GB262432A (en)
NL (1) NL22301C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510757A (en) * 1949-06-30 1950-06-06 Avco Mfg Corp Radio cabinet and tuning dial structure

Also Published As

Publication number Publication date
NL22301C (en)

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