GB358700A - Improvements in or relating to control devices for radio tuning elements - Google Patents

Improvements in or relating to control devices for radio tuning elements

Info

Publication number
GB358700A
GB358700A GB28434/30A GB2843430A GB358700A GB 358700 A GB358700 A GB 358700A GB 28434/30 A GB28434/30 A GB 28434/30A GB 2843430 A GB2843430 A GB 2843430A GB 358700 A GB358700 A GB 358700A
Authority
GB
United Kingdom
Prior art keywords
drum
relating
control devices
michigan
jackson
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
GB28434/30A
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.)
Sparks Withington Co
Original Assignee
Sparks Withington 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 Sparks Withington Co filed Critical Sparks Withington Co
Publication of GB358700A publication Critical patent/GB358700A/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
    • H03J1/10—Rope drive; Chain drive

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Mechanical Control Devices (AREA)

Abstract

358,700. Adjusting wireless apparatus. SPARKSWITHINGTON CO., Jackson, Michigan, U.S.A.-(Assignees of Scofield, T. J. and Miner, W. D. ; of Sparks-Withing- ton Co., Jackson, Michigan, U.S.A.) Sept. 23, 1930, No. 28434. Convention date, Oct. 11, 1929. [Class 37.] A tuning control for ganged condensers includes an indicator drum having side disc flanges each provided on its outer surface with a groove for a belt drive and on its inner surface with a groove for securing an indicating strip. The drum is formed by a spider 5 with side discs 16, 22, the discs having belt grooves 17, 23 and grooves 18, 24 for the index strip 12. The index is secured to lugs 9 on the rim of the spider by screws and washers 13, 14. The disc 22 has a cut-away portion to permit insertion of a lamp within the drum. Specification 355,076 is referred to.
GB28434/30A 1929-10-11 1930-09-23 Improvements in or relating to control devices for radio tuning elements Expired GB358700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US398864A US1871011A (en) 1929-10-11 1929-10-11 Control apparatus for gang condensers

Publications (1)

Publication Number Publication Date
GB358700A true GB358700A (en) 1931-10-15

Family

ID=23577097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28434/30A Expired GB358700A (en) 1929-10-11 1930-09-23 Improvements in or relating to control devices for radio tuning elements

Country Status (4)

Country Link
US (1) US1871011A (en)
DE (1) DE583581C (en)
FR (1) FR704081A (en)
GB (1) GB358700A (en)

Also Published As

Publication number Publication date
DE583581C (en) 1933-09-07
US1871011A (en) 1932-08-09
FR704081A (en) 1931-05-11

Similar Documents

Publication Publication Date Title
GB358700A (en) Improvements in or relating to control devices for radio tuning elements
GB450807A (en) Improvements in or relating to spacers for twin detachable rims for vehicle wheels
GB514871A (en) An adjustable device for indicating the prices of goods in shop-windows or the like
AU100641B2 (en) Tuning indicator for radio receivers and the like
ES4428U (en) A wheel with metallic spokes (Machine-translation by Google Translate, not legally binding)
CA380731A (en) Radio receiver tuning indicator
AU329936A (en) Tuning indicator for radio receivers and the like
GB424173A (en) Improvements in or connected with polishing, buffing and like apparatus
CA370943A (en) Tire and rim
CA340926A (en) Radio tuning indicator
CA297143A (en) Wheel rim
CA386736A (en) Radio tuning indicator
CA302177A (en) Tire deflation signal
CA304035A (en) Disk wheel
GB316038A (en) Telephone number indicator
GB236100A (en) Improvements in and relating to variable inductance for radio signalling apparatus
CA319830A (en) Tire tread wear measuring instrument
CA306309A (en) Radio receiver indicator
DK57197C (en) Radio receiver with optical Tuning indicator.
AU2481030A (en) Combination piano, phonograph and radio
GB424423A (en) Improvements in hand-operated indicators for facilitating identification of wireless transmitting stations
CA367432A (en) Diamond impregnated grinding wheel
CA385844A (en) Radio receiver tuning means
GB410792A (en) Improvements in or appertaining to radio receiving sets
CA248445A (en) Disc wheel hub