GB1128907A - Improvements relating to push-button tuners - Google Patents

Improvements relating to push-button tuners

Info

Publication number
GB1128907A
GB1128907A GB5155864A GB5155864A GB1128907A GB 1128907 A GB1128907 A GB 1128907A GB 5155864 A GB5155864 A GB 5155864A GB 5155864 A GB5155864 A GB 5155864A GB 1128907 A GB1128907 A GB 1128907A
Authority
GB
United Kingdom
Prior art keywords
button
buttons
switch
tuning
plate
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
GB5155864A
Inventor
Rexham Arthur Mann
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.)
Plessey UK Ltd
Original Assignee
Plessey UK Ltd
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 Plessey UK Ltd filed Critical Plessey UK Ltd
Priority to GB5155864A priority Critical patent/GB1128907A/en
Publication of GB1128907A publication Critical patent/GB1128907A/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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28—Chemically modified polycondensates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Push-Button Switches (AREA)

Abstract

1,128,907. Push-button tuning. PLESSEY (UK) Ltd. 6 Jan., 1966 [18 Dec., 1964], No. 51558/64. Heading H3Q. [Also in Division H1N] A receiver tuning arrangement covering different frequency bands has separate tuners mechanically coupled together so that the pushbuttons operate both simultaneously, the buttons also actuating switches to change the operating condition of the receiver where necessary, e.g. frequency-range and number of scanning lines in a television receiver. In Fig. 1 a V.H.F. tuner 1 of the spring-urged inductance core type as in Specification 989,781 and a U.H.F. tuner 2 of the rotary capacitor type are coupled together by a mechanical linkage 10 which is attached to a crank 9 on the rotary capacitor shaft and operates a hinged plate 11 to move the plunger 3 axially. The tuning push-buttons 4-7 are located in the U.H.F. unit and when any one is pressed it operates both tuning controls simultaneously. Button 4 selects V.H.F. Band I, buttons 5 and 6 select two different U.H.F. channels and button 7 selects V.H.F. Band III. The V.H.F. tuner includes a slider switch for changing from Band I to Band III and another slider switch for changing from V.H.F. to U.H.F., and these are operated by the appropriate buttons 5-7 by means of a pivoted plate on a cross-shaft (12 in Fig. 2, not shown). At the same time buttons 5 and 6 move a plate (14) which engages a spring- urged slider (15) to operate the standards conversion switch (16). Fine tuning is effected by rotating the buttons 4-7 as in Specification 1,006,215. An additional on/off button 17 is interlocked with buttons 4-7 for latching and release. The rear end of this button carries a cam 20 with a conical portion 24 which engages a plate 21 to operate a pair of microswitches 22, 23 to complete the heater circuits. When the button is pushed in it operates an arm 19 to switch off the H.T. by a switch 18. If one of the buttons 4-7 is now pressed, the button 17 will be released and the H.T. will be switched on; since the heaters are already on the set will operate immediately, the heater circuit being maintained by switch 18. To switch off the set the button 17 is turned through 180 degrees and then pressed in; the plate 21 no longer operates the microswitches and the heaters are turned off.
GB5155864A 1964-12-18 1964-12-18 Improvements relating to push-button tuners Expired GB1128907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5155864A GB1128907A (en) 1964-12-18 1964-12-18 Improvements relating to push-button tuners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5155864A GB1128907A (en) 1964-12-18 1964-12-18 Improvements relating to push-button tuners

Publications (1)

Publication Number Publication Date
GB1128907A true GB1128907A (en) 1968-10-02

Family

ID=10460480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5155864A Expired GB1128907A (en) 1964-12-18 1964-12-18 Improvements relating to push-button tuners

Country Status (1)

Country Link
GB (1) GB1128907A (en)

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