GB657975A - Improvements in or relating to the tuning device of a radio apparatus or a similar apparatus - Google Patents

Improvements in or relating to the tuning device of a radio apparatus or a similar apparatus

Info

Publication number
GB657975A
GB657975A GB10466/49A GB1046649A GB657975A GB 657975 A GB657975 A GB 657975A GB 10466/49 A GB10466/49 A GB 10466/49A GB 1046649 A GB1046649 A GB 1046649A GB 657975 A GB657975 A GB 657975A
Authority
GB
United Kingdom
Prior art keywords
spindle
planet
gear
friction
knob
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
GB10466/49A
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 GB657975A publication Critical patent/GB657975A/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
    • H03J1/14—Special arrangements for fine and coarse tuning

Landscapes

  • Mechanical Control Devices (AREA)
  • Transmission Devices (AREA)
  • Retarders (AREA)

Abstract

657,975. Adjusting radio apparatus. HOLSTENSSON, A. H. April 20, 1949, Nos. 10466 and 10467. Convention dates, April 23, 1948. [Class 40 (v)] [Also in Group XXIV] A two-speed drive between a hand-knob 10, provided with a flywheel 9, and a spindle 30 of a radio-tuning capacitor, comprises a direct-reduced planetary friction train driving a first intermediate spindle 8, which drives a second intermediate spindle 26 through a friction reducing-gear 24, 25, so that in either condition of the planet-train both the driving flywheel 9 and the reduction ratio of the friction-gear 24, 25 are always effective. The second intermediate spindle 26 drives the condenser-spindle 30 through a cord-pulley reducing-gear 27, 29, 28. The planet-gear comprises a planet-spindle carrying stepped planets 20, 22, Fig. 4, frictionally engaging respectively a sun 19 on the driving-knob spindle 7 and a larger sun 23 on the aligned first intermediate spindle 8, the end of which latter is formed as the friction wheel 24 of the second reductionstage 24, 25. The planet-carrier is formed of plates 11, 12, 13, 14, centred on the aligned spindles 7, 8 and axially spaced by three distance-rods 16, any one of which is adapted to be held by engagement with a notch 46, Fig. 1, in a stop.-plate 45 which is pivoted into or out of engagement for reduced or direct drive by an independent hand-knob 43, Fig. 2, an over-centre spring 49 being provided to hold the stop-plate in both positions. In the free-position, the friction of the sun and planet wheels 19 ... 23 is sufficient to overcome load resistance to produce solid drive in the planet-section of the gear. The Specification as open to inspection under Sect. 91 refers to Swedish Specification 86,183. This reference does not appear in the Specification as accepted.
GB10466/49A 1948-04-23 1949-04-20 Improvements in or relating to the tuning device of a radio apparatus or a similar apparatus Expired GB657975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE274637X 1948-04-23

Publications (1)

Publication Number Publication Date
GB657975A true GB657975A (en) 1951-10-03

Family

ID=20306851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10466/49A Expired GB657975A (en) 1948-04-23 1949-04-20 Improvements in or relating to the tuning device of a radio apparatus or a similar apparatus

Country Status (6)

Country Link
BE (1) BE488650A (en)
CH (1) CH274637A (en)
DE (1) DE940413C (en)
FR (1) FR984795A (en)
GB (1) GB657975A (en)
NL (2) NL74612C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111071500B (en) * 2019-12-31 2021-04-20 中国科学院空间应用工程与技术中心 Material cabin outer exposure friction wheel movement mechanism and on-orbit inspection device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL72521B (en) * 1934-02-17
US1632352A (en) * 1924-11-04 1927-06-14 John M Stewart Electrical condenser
GB479938A (en) * 1935-08-22 1938-02-15 Etienne Czobor Improvements in and relating to adjusting devices for wireless apparatus
DE863374C (en) * 1939-05-03 1953-01-15 Schaub Appbau Ges M B H G Coarse fine drive for tuning means of radio receivers equipped with flywheel drive

Also Published As

Publication number Publication date
CH274637A (en) 1951-04-15
FR984795A (en) 1951-07-10
BE488650A (en)
NL146068B (en)
NL74612C (en)
DE940413C (en) 1956-03-15

Similar Documents

Publication Publication Date Title
JPS6435147A (en) Geared automatic transmission
ES340671A1 (en) Epicyclic gear boxes
GB657975A (en) Improvements in or relating to the tuning device of a radio apparatus or a similar apparatus
GB790184A (en) Anti-backlash gearing
SE312025B (en)
GB879040A (en) Epicyclic gearing
GB731009A (en) Speed-reducing device for winches chain lifts and the like
GB598806A (en) Improvements in and relating to epicyclic gear trains
GB620723A (en) Improvements in or relating to differential gearing
GB936586A (en) Improvements in and relating to epicyclic change speed gearing
GB567340A (en) Improvements relating to epi-cyclic change-speed gearing
GB738498A (en) Improvements in or relating to torque converters
GB642054A (en) Improvements relating to epicyclic gears
GB670940A (en) Automatic gearbox
GB743814A (en) Improvements in and relating to epicyclic change-speed gearing
GB588845A (en) Taking up back lash in gearing
GB917113A (en) Improved reversible drive mechanism
GB169463A (en) Variable-speed and reversing gearing suitable for motor-vehicles
GB207035A (en) Improvements in or relating to friction gearing
GB308591A (en) Improvements in and relating to machine attachments for screwing and tapping
GB639104A (en) Improvements relating to epicyclic change speed gears
GB658964A (en) Improvements in or relating to variable-ratio power transmission apparatus
GB476160A (en) Apparatus for obtaining variable speed reduction
GB260732A (en) Improvements in frictional reduction gear
GB541332A (en) Improvements relating to epi-cyclic variable speed gearing