GB625068A - Improvements in push button tuning mechanism for radio receivers - Google Patents

Improvements in push button tuning mechanism for radio receivers

Info

Publication number
GB625068A
GB625068A GB34742/46A GB3474246A GB625068A GB 625068 A GB625068 A GB 625068A GB 34742/46 A GB34742/46 A GB 34742/46A GB 3474246 A GB3474246 A GB 3474246A GB 625068 A GB625068 A GB 625068A
Authority
GB
United Kingdom
Prior art keywords
lever
button
condenser
tuning
push
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
GB34742/46A
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
Publication of GB625068A publication Critical patent/GB625068A/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

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

Abstract

625,068. Push-button tuning mechanism. HANSEN, H. C. Nov. 22, 1946, No. 34742. Convention date, Dec. 10, 1945. [Class 40 (v)] In a, push-button tuning mechanism, as shown, each button 2 is attached to a lever 3 mounted on a common spindle 4 and connected by a helical spring 5 to a second lever 7, 8, carried on a common spindle 6 parallel to the spindle 4, the spring being kept in tension by means of a member 19 between the two levers and attached to the lever 3. The lever 8 bears on the moving plates 10 of the tuning condenser which are attached to a cord driving the rotatable scale 17, the other endof the cord being connected to a helical spring 16 fixed to the frame. On depression of the push-button 2 the lever 8 moves the condenser plates 10 into the required position which is determined by the adjustable stop 22 on the end of the screw 23 mounted in the frame, the lever 3 continuing its motion to cause the member 19 to engage with a common locking bar 27 and also release any other button which may be depressed. The condenser may be inserted and fixed in the frame as a unit independent of the operating mechanism and without affecting the adjustments. For continuous tuning, Fig. 2 (not shown), the appropriate button is pressed and a similar mechanism, but without the adjustable stop portion, moves an arm into contact with a cam which may be rotated by means not shown to move the condenser into any desired position.
GB34742/46A 1945-12-10 1946-11-22 Improvements in push button tuning mechanism for radio receivers Expired GB625068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK625068X 1945-12-10

Publications (1)

Publication Number Publication Date
GB625068A true GB625068A (en) 1949-06-21

Family

ID=8151787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34742/46A Expired GB625068A (en) 1945-12-10 1946-11-22 Improvements in push button tuning mechanism for radio receivers

Country Status (2)

Country Link
US (1) US2554052A (en)
GB (1) GB625068A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937534A (en) * 1957-10-25 1960-05-24 Grundig Max Push-button tuner for high-frequency circuits
DE1766860B1 (en) * 1968-07-31 1971-02-04 Hopt Kg R & E Mechanical part of a tuning device for communications equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1992161A (en) * 1931-06-01 1935-02-19 Gen Instrument Corp Variable condenser
US2259719A (en) * 1938-05-20 1941-10-21 Condenser Dev Corp Radio station selector
US2307673A (en) * 1938-11-08 1943-01-05 Condenser Dev Corp Combined radio condenser and station selector
US2281093A (en) * 1939-12-04 1942-04-28 Crowe Name Plate & Mfg Co Radio tuning apparatus

Also Published As

Publication number Publication date
US2554052A (en) 1951-05-22

Similar Documents

Publication Publication Date Title
GB625068A (en) Improvements in push button tuning mechanism for radio receivers
GB684041A (en) Improvements in or relating to the tuning mechanism of radio apparatus
GB717892A (en) Improvements in or relating to a power mechanism for typewriters and like machines
US2346399A (en) Tuner
US2351443A (en) Push button mechanism for tuning radio receivers
GB1008360A (en) Improvements in electric switch-actuating mechanisms
GB700213A (en) Improvements in or relating to motion translating device
GB679654A (en) Improved tuner mechanism for radio apparatus
GB701071A (en) Improvements in or relating to electromagnetic relays
GB597585A (en) Improvements in or relating to push button tuning devices for radio receivers
GB624968A (en) Tuning mechanism for radio apparatus
GB522248A (en) Improvements relating to the tuning of radio receivers
GB523772A (en) Improvements relating to the tuning of radio receivers
GB551761A (en) Tuning mechanism for wireless apparatus
GB543252A (en) Improvements in radio-receiving sets comprising a wave-range switch
GB498154A (en) Improvements relating to the tuning of radio receivers
GB595324A (en) Improvements in or relating to radio tuning structure
GB697068A (en) Improvements in or relating to high-frequency tuning devices
GB228698A (en) Improvements in adjusting devices for variable electric condensers and the like
GB595226A (en) Improvements in push button switches
GB692246A (en) Improvements relating to cam-operated electric switches
GB760440A (en) Improvements in the tuning of radio sets, especially for am/fm-radio or television receivers
GB877804A (en) Mechanical connecting devices
GB792878A (en) Improvements in or relating to switch mechanism for electrical tuning devices for wireless receiving apparatus
GB612947A (en) Improvements relating to window regulators