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GB388938A - Improvements in and relating to dial arrangements, more particularly for wireless apparatus - Google Patents

Improvements in and relating to dial arrangements, more particularly for wireless apparatus

Info

Publication number
GB388938A
GB388938A GB8086/32A GB808632A GB388938A GB 388938 A GB388938 A GB 388938A GB 8086/32 A GB8086/32 A GB 8086/32A GB 808632 A GB808632 A GB 808632A GB 388938 A GB388938 A GB 388938A
Authority
GB
United Kingdom
Prior art keywords
scales
movable
wireless
dial
screen
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
GB8086/32A
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.)
IDEAL WERKE AG
Original Assignee
IDEAL WERKE 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 IDEAL WERKE AG filed Critical IDEAL WERKE AG
Publication of GB388938A publication Critical patent/GB388938A/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
    • H03J1/044—Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination

Landscapes

  • Mechanical Control Devices (AREA)

Abstract

388,938. Adjusting wireless apparatus; indicating-apparatus. IDEAL WERKE AKT.-GES. FœR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Berlin. March 18, 1932, No. 8086. Convention date, Dec. 18, 1931. [Class 37.] An indicating-device for wireless and other apparatus comprises a screen 19, on the panel of the device, on which the image of one of three scales 7, 9, 11 is selectively projected through a system of lenses 15, 16, 17, arranged in a casing 18, a single source of light 8 being movable so as to illuminate one of these scales in accordance 'with the adjusted range of the apparatus. The three scales are carried on a disc movable with the condenser shaft, in the case of wireless receivers, and the lamp 8 is carried in a fitting 10 attached to a lever 13, 14, 20, movable with wave-change arrangements. Change over may also be effected by moving the dial or the optical system or the screen itself. The screen may be quite external to the apparatus. In receivers used for gramophone reproduction an additional indicator showing this condition is provided on the dial.
GB8086/32A 1931-12-18 1932-03-18 Improvements in and relating to dial arrangements, more particularly for wireless apparatus Expired GB388938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE388938X 1931-12-18

Publications (1)

Publication Number Publication Date
GB388938A true GB388938A (en) 1933-03-09

Family

ID=6371338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8086/32A Expired GB388938A (en) 1931-12-18 1932-03-18 Improvements in and relating to dial arrangements, more particularly for wireless apparatus

Country Status (1)

Country Link
GB (1) GB388938A (en)

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