GB535904A - Improvements in or relating to tuning devices and indicators for radio receivers - Google Patents

Improvements in or relating to tuning devices and indicators for radio receivers

Info

Publication number
GB535904A
GB535904A GB28596/39A GB2859639A GB535904A GB 535904 A GB535904 A GB 535904A GB 28596/39 A GB28596/39 A GB 28596/39A GB 2859639 A GB2859639 A GB 2859639A GB 535904 A GB535904 A GB 535904A
Authority
GB
United Kingdom
Prior art keywords
receiver
vibration
shaft
tuning
spindle
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
GB28596/39A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB535904A publication Critical patent/GB535904A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
    • C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
    • C07D295/084—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
    • C07D295/092—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings with aromatic radicals attached to the chain
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/12—Electrically-operated arrangements for indicating correct tuning
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Magnetically Actuated Valves (AREA)
  • Structure Of Receivers (AREA)

Abstract

535,904. Wireless receiving sets. STANDARD TELEPHONES & CABLES, Ltd., and SMYTH, C. N. Oct. 24, 1939, No. 28596. [Class 40 (v)] The manual tuning shaft of a receiver is associated with an electro magnet fed with A.C. under the control of the A.V.C. circuit of the receiver so that the shaft is vibrated in dependence on signal strength, the vibration being at a maximum when the receiver is mistuned and diminishing as the receiver is brought into tune, absence of vibration thus indicating correct tuning. A spindle A rotated by a knob G drives the tuning elements through a pulley P and cord H. The spindle is mounted in bearings D permitting a small degree of vibration limited by a spring F and is provided with a thickened conical portion C serving as an armature within a coil B. Vibration is imparted to the shaft by feeding low frequency alternating current or direct current superposed with a low frequency current to the coil B which is in series with a valve the grid of which is controlled by the A.V.C. voltage.
GB28596/39A 1961-10-10 1939-10-24 Improvements in or relating to tuning devices and indicators for radio receivers Expired GB535904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3640361A GB956615A (en) 1961-10-10 1961-10-10 New substituted diphenylalkylamines

Publications (1)

Publication Number Publication Date
GB535904A true GB535904A (en) 1941-04-25

Family

ID=10387817

Family Applications (2)

Application Number Title Priority Date Filing Date
GB28596/39A Expired GB535904A (en) 1961-10-10 1939-10-24 Improvements in or relating to tuning devices and indicators for radio receivers
GB3640361A Expired GB956615A (en) 1961-10-10 1961-10-10 New substituted diphenylalkylamines

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3640361A Expired GB956615A (en) 1961-10-10 1961-10-10 New substituted diphenylalkylamines

Country Status (9)

Country Link
BE (2) BE472265A (en)
CH (1) CH446392A (en)
DE (1) DE1244801B (en)
DK (1) DK110091C (en)
ES (1) ES281404A1 (en)
FI (1) FI40471B (en)
FR (2) FR2700M (en)
GB (2) GB535904A (en)
NL (2) NL129009C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506670A (en) * 1966-09-26 1970-04-14 Upjohn Co 2-hetero-amino-alpha,alpha-diaryl-cycloalkone-methanols and esters thereof
JPS60132934A (en) * 1983-11-21 1985-07-16 Nippon Shinyaku Co Ltd Butanol derivative

Also Published As

Publication number Publication date
FR931308A (en) 1948-02-19
FR2700M (en) 1964-08-03
BE623390A (en)
NL129009C (en)
FI40471B (en) 1968-10-31
NL63794C (en)
BE472265A (en)
ES281404A1 (en) 1963-03-16
DE1244801B (en) 1967-07-20
DK110091C (en) 1968-10-28
GB956615A (en) 1964-04-29
CH446392A (en) 1967-11-15

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