GB338903A - Improvements in or relating to wireless receiving apparatus - Google Patents

Improvements in or relating to wireless receiving apparatus

Info

Publication number
GB338903A
GB338903A GB25768/29A GB2576829A GB338903A GB 338903 A GB338903 A GB 338903A GB 25768/29 A GB25768/29 A GB 25768/29A GB 2576829 A GB2576829 A GB 2576829A GB 338903 A GB338903 A GB 338903A
Authority
GB
United Kingdom
Prior art keywords
indicating
vane
elements
carried
relating
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
GB25768/29A
Other languages
English (en)
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
Priority claimed from DER75350D external-priority patent/DE496561C/de
Application filed by Individual filed Critical Individual
Publication of GB338903A publication Critical patent/GB338903A/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
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
    • 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
    • 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
    • H03J1/063—Special arrangements taken in correlation with the wear; Suppressing backlash; Locking in a desired position
    • 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
    • H03J1/08—Toothed-gear drive; Worm drive
    • 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
    • H03J1/10—Rope drive; Chain drive
    • 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

  • Length Measuring Devices By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
GB25768/29A 1928-08-07 1929-08-23 Improvements in or relating to wireless receiving apparatus Expired GB338903A (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
DER75350D DE496561C (de) 1928-08-07 1928-08-07 Einstellvorrichtung fuer Radioempfaenger
DER77427D DE505624C (de) 1928-08-07 1929-03-07 Einstellvorrichtung fuer Radioempfaenger
FR37941T 1929-09-18
FR38235T 1929-10-03
FR38496T 1929-10-07
FR38497T 1929-12-05
FR38512T 1929-12-20
FR38653T 1930-01-04
FR38997T 1930-03-26
FR39315T 1930-05-09
FR39947T 1930-07-24

Publications (1)

Publication Number Publication Date
GB338903A true GB338903A (en) 1930-11-24

Family

ID=62295846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25768/29A Expired GB338903A (en) 1928-08-07 1929-08-23 Improvements in or relating to wireless receiving apparatus

Country Status (5)

Country Link
BE (1) BE362108A (enrdf_load_stackoverflow)
CH (1) CH148922A (enrdf_load_stackoverflow)
DE (1) DE505624C (enrdf_load_stackoverflow)
FR (10) FR677639A (enrdf_load_stackoverflow)
GB (1) GB338903A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104611B (de) * 1956-09-21 1961-04-13 Nuernberger Schwachstrom Bauel Drehkondensator

Also Published As

Publication number Publication date
FR38512E (fr) 1931-06-13
FR37941E (fr) 1931-02-07
FR38235E (fr) 1931-04-24
BE362108A (enrdf_load_stackoverflow) 1929-08-31
FR39947E (fr) 1932-03-19
FR38997E (fr) 1931-08-10
FR677639A (fr) 1930-03-12
FR38496E (fr) 1931-06-06
FR38653E (fr) 1931-06-26
FR38497E (fr) 1931-06-06
CH148922A (fr) 1931-08-15
DE505624C (de) 1930-08-21
FR39315E (fr) 1931-10-12

Similar Documents

Publication Publication Date Title
GB338903A (en) Improvements in or relating to wireless receiving apparatus
GB361407A (en) Improvements in, or relating to sextants
Hahn Flame tests in the presence of sodium
GB381350A (en) Improvements in devices for the adjustment of receiving sets for wireless waves
GB522402A (en) An instrument for use in measuring the intensity of ultra-violet radiation
GB506543A (en) Improvements in or relating to indicators particularly for radio receivers
GB475379A (en) Improvements in and relating to pointer tuning indicators for wireless receiving sets
GB366212A (en) Improvements relating to radio-receiving apparatus
GB425792A (en) Improvements in or relating to indicator devices adapted for use in connection with the control handles of radio receivers
GB382457A (en) Improvements in or relating to displaying apparatus
GB342893A (en) Instrument for drawing curves especially conic sections
DE577716C (de) Beleuchtete Ablesevorrichtung fuer Rundfunkempfaenger
GB515383A (en) Improvements in multi-range indicating devices for radio receivers
GB428642A (en) Improvements in and relating to indicating devices for use with tuning devices of wireless apparatus
GB228328A (en) Improvements connected with weighing scales combined with illuminated advertising devices
GB262432A (en) Improvements in indicating devices
GB367335A (en) Improvements relating to luminous signs
GB325310A (en) Improvements in or relating to tuning devices for radio apparatus
GB268530A (en) Improvements in and relating to geared variable condensers for wireless
GB507948A (en) Improvements in and relating to the tuning of radio receivers
FR631511A (fr) Plateau mobile combiné avec un support permettant de faire tourner les mappemondes, cartes célestes et autres globes transparents ou translucides décorés éclairés intérieurement
GB414841A (en) Tuning indicator for radio apparatus
GB340966A (en) An improved electrical pocket-lamp pencil
GB508972A (en) Improvements in or relating to indicators
GB354092A (en) Improvements relating to portable electric lamps