GB649360A - Improved radio tuner mechanism - Google Patents

Improved radio tuner mechanism

Info

Publication number
GB649360A
GB649360A GB15751/48A GB1575148A GB649360A GB 649360 A GB649360 A GB 649360A GB 15751/48 A GB15751/48 A GB 15751/48A GB 1575148 A GB1575148 A GB 1575148A GB 649360 A GB649360 A GB 649360A
Authority
GB
United Kingdom
Prior art keywords
bar
cam
button
push
spring
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
GB15751/48A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB649360A publication Critical patent/GB649360A/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
    • H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
    • H03J1/066—Constructional details regarding potentiometric setting of voltage or current variable reactances
    • 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)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Structure Of Receivers (AREA)
  • Mechanical Control Devices (AREA)

Abstract

649,360. Push-button tuning mechanism. GENERAL MOTORS CORPORATION. June 11, 1948, No. 15751. Convention date, Sept. 18, 1947. [Class 40 (v)] In a push-button tuning mechanism each reciprocatory member 44, 46 is movable by a push-button 48 and carries an adjustable cam 56 co-operating with two rods 32 connected at each end by pivoted side-members and coupled by links 34 to a rod 20 slidable in slots in the side frame members 4, 6, to adjust the tuning cores 18 of the coils, the cam 56 being locked in position or released by relative movement between the bars 44, 46. The cam 56 is pivotally mounted on the bar 44 and a bowed bar 66 engages the surface of the cam and extends through an aperture 70 in a bent-out portion of bar 44, a strap 76 attached to the bar 46 engaging the other end 78 of bar 66, which is bent outwardly so that forcing the strap 76 to the rear forces the end 78 down against the action of spring 74 to lock the cam. The bar 46, which carries a push-button 48, extends beyond the bar 44 and has an elongated slot 50 in which is located a rivet 52 provided with a spring washer 54 and carried by the bar 44. To pre-set the tuning the cam is unlocked by pulling the button 48 out beyond its normal position, as determined by the spring 80, as shown in Fig. 3. The receiver is tuned to the desired station by manual means (not shown) and the button 48 is pressed in so that the cam 56 engages both members 32, this stopping the cam from further rotation. The bar 46 then slides with respect to bar 44, forces the bar 66 down to lock the cam, and is retained in position by a projection 82 on bar 44 which fits into an opening 84 on bar 46, the spring 80 returning the assembly to its normal position.
GB15751/48A 1947-09-18 1948-06-11 Improved radio tuner mechanism Expired GB649360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US774868A US2489544A (en) 1947-09-18 1947-09-18 Radio tuning means

Publications (1)

Publication Number Publication Date
GB649360A true GB649360A (en) 1951-01-24

Family

ID=25102534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15751/48A Expired GB649360A (en) 1947-09-18 1948-06-11 Improved radio tuner mechanism

Country Status (6)

Country Link
US (1) US2489544A (en)
BE (1) BE484330A (en)
CH (1) CH277838A (en)
DE (2) DE1650552U (en)
FR (2) FR968894A (en)
GB (1) GB649360A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800027A (en) * 1947-09-18 1957-07-23 Gen Motors Corp Mechanical radio tuning means
US2793531A (en) * 1955-05-25 1957-05-28 Motorola Inc Tuning apparatus
US2977430A (en) * 1956-05-22 1961-03-28 Chrysler Corp Starter control device for automotive vehicles
US2989958A (en) * 1956-07-09 1961-06-27 Chrysler Corp Neutral push button transmission control and starter switch
US2898767A (en) * 1956-11-08 1959-08-11 Radio Condenser Co Tuner
US2928283A (en) * 1957-10-14 1960-03-15 Radio Condenser Co Tuner
US2930241A (en) * 1957-10-17 1960-03-29 Motorola Inc Pushbutton structure
US3086401A (en) * 1961-03-14 1963-04-23 Thompson Ramo Wooldridge Inc Tuner slide assembly
US3074284A (en) * 1961-05-26 1963-01-22 Thompson Ramo Wooldridge Inc Push button slide assembly for tuners
US3195359A (en) * 1961-12-21 1965-07-20 Motorola Inc Pushbutton structure
NL288947A (en) * 1963-02-13
GB1054085A (en) * 1963-06-19
DE2829514C2 (en) * 1977-07-14 1986-03-27 RI-EL Ricerche Elettroniche S.p.A., Cologno Monzese, Mailand Push button coordinator
JPS5816262Y2 (en) * 1981-01-12 1983-04-02 クラリオン株式会社 guide shaft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259719A (en) * 1938-05-20 1941-10-21 Condenser Dev Corp Radio station selector
US2310003A (en) * 1941-01-06 1943-02-02 Wells Gardner & Co Tuning mechanism for radio receiving sets
US2301090A (en) * 1941-04-09 1942-11-03 Radio Condenser Co Radio tuning mechanism

Also Published As

Publication number Publication date
CH277838A (en) 1951-09-15
DE862921C (en) 1953-01-15
BE484330A (en)
DE1650552U (en) 1953-02-12
US2489544A (en) 1949-11-29
FR968894A (en) 1950-12-08
FR67200E (en) 1957-11-25

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