GB597585A - Improvements in or relating to push button tuning devices for radio receivers - Google Patents

Improvements in or relating to push button tuning devices for radio receivers

Info

Publication number
GB597585A
GB597585A GB9705/45A GB970545A GB597585A GB 597585 A GB597585 A GB 597585A GB 9705/45 A GB9705/45 A GB 9705/45A GB 970545 A GB970545 A GB 970545A GB 597585 A GB597585 A GB 597585A
Authority
GB
United Kingdom
Prior art keywords
tuning
button
plate
push
lug
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
GB9705/45A
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.)
STANLEY STACY CRAMER
Original Assignee
STANLEY STACY CRAMER
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 STANLEY STACY CRAMER filed Critical STANLEY STACY CRAMER
Publication of GB597585A publication Critical patent/GB597585A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/04—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand
    • H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Structure Of Receivers (AREA)

Abstract

597,585. Push-button tuning mechanism. CRAMER, S. S. April 18, 1945, No. 9705. Convention date, May 2, 1944. [Class 40 (v)] A push-button tuning arrangement comprises a number of sliding units, each provided with a member which upon depression of the corresponding button engages the tuning means and moves it into one of its extreme positions, and an adjustable stop member whereby the return of the tuning means upon release of the button is arrested at a predetermined point. Each unit comprises a push button 19 engaging a tuning plate 7 which slides alongside a setting plate 8 held in position by a spring 27. When a button 19 is depressed the corresponding tuning plate 7 is engaged at 16 and is moved, causing a lug 9 on the plate 7 to contact the positioning member 10 of a tuning member 13 and move it to one of its extreme positions. At the same time a spring 35 attached to the plate 7 lifts a stopping pawl 28 pivoted on the setting plate 8 into the return path of the member 10. Any engaging pawl 28 in the remaining units is released from engagement with the member 10 upon its movement by the lug 9 of the unit being depressed. On release of the button 19, the tuning plate 7 returns to normal position, and the tuning member 13 is driven by suitable means (not shown) towards its other extreme position until stopped by engagement of the member 10 with the raised pawl 28. The button 19 is slidably mounted on a threaded rod 21 engaging with a threaded lug 23 on the setting plate 8, the position of the setting plate 8 and hence the tuning being adjusted by rotation of the push button 19.
GB9705/45A 1944-05-02 1945-04-18 Improvements in or relating to push button tuning devices for radio receivers Expired GB597585A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US533762A US2400193A (en) 1944-05-02 1944-05-02 Tuning structure for radio receiving sets

Publications (1)

Publication Number Publication Date
GB597585A true GB597585A (en) 1948-01-29

Family

ID=24127351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9705/45A Expired GB597585A (en) 1944-05-02 1945-04-18 Improvements in or relating to push button tuning devices for radio receivers

Country Status (2)

Country Link
US (1) US2400193A (en)
GB (1) GB597585A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510156A (en) * 1948-01-19 1950-06-06 Motorola Inc Automatic tuner

Also Published As

Publication number Publication date
US2400193A (en) 1946-05-14

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