GB319421A - An improved method of controlling variable electric condensers and like apparatus - Google Patents

An improved method of controlling variable electric condensers and like apparatus

Info

Publication number
GB319421A
GB319421A GB1861228A GB1861228A GB319421A GB 319421 A GB319421 A GB 319421A GB 1861228 A GB1861228 A GB 1861228A GB 1861228 A GB1861228 A GB 1861228A GB 319421 A GB319421 A GB 319421A
Authority
GB
United Kingdom
Prior art keywords
operating
shaft
movement
condensers
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
GB1861228A
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.)
BENJAMIN HESKETH
Original Assignee
BENJAMIN HESKETH
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 BENJAMIN HESKETH filed Critical BENJAMIN HESKETH
Priority to GB1861228A priority Critical patent/GB319421A/en
Publication of GB319421A publication Critical patent/GB319421A/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
    • H03J1/08—Toothed-gear drive; Worm drive

Abstract

319,421. Hesketh, B. June 26, 1928. Wireless tuning-apparatus, adjustment devices for. - Adjustment mechanism for controlling a number of condensers &c., simultaneously and separately comprises rotatable gearing, the control shaft of which is displaced in order to effect the separate movements. In one construction, Fig. 1, the control shaft 1 is provided with left and right-hand worms 5, 7 driving condenser gear 6, 8, one operating-knob 10 having a right or lefthand screw-thread engagement with a panel fixing bush 4. Rotation of the operating-knob 2 alone adjusts both condensers simultaneously. while if both knobs 2, 10 are rotated together and the pitches of the threads 5, 7, 9 are equal, the shaft 1 is moved laterally so that one condenser remains stationary and the other receives a movement relatively thereto, the extent of movement being equal to the rotational plus lateral components. In a modification the shaft 1 is carried in a tubular member slotted to receive the gears 6, 8 which are provided with a helical spring for preventing back-lash. The movement of one of the operating knobs in this modification is limited by an arcuate groove and stop.
GB1861228A 1928-06-26 1928-06-26 An improved method of controlling variable electric condensers and like apparatus Expired GB319421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1861228A GB319421A (en) 1928-06-26 1928-06-26 An improved method of controlling variable electric condensers and like apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1861228A GB319421A (en) 1928-06-26 1928-06-26 An improved method of controlling variable electric condensers and like apparatus

Publications (1)

Publication Number Publication Date
GB319421A true GB319421A (en) 1929-09-26

Family

ID=10115428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1861228A Expired GB319421A (en) 1928-06-26 1928-06-26 An improved method of controlling variable electric condensers and like apparatus

Country Status (1)

Country Link
GB (1) GB319421A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645429A (en) * 1949-07-07 1953-07-14 Gen Electric Winding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645429A (en) * 1949-07-07 1953-07-14 Gen Electric Winding machine

Similar Documents

Publication Publication Date Title
US2212348A (en) Drive and timing mechanism
US2788481A (en) Motor operated drapery device with limit control
GB319421A (en) An improved method of controlling variable electric condensers and like apparatus
US3850012A (en) Circular knitting machine comprising a fabric draw off device
DE2205637B2 (en) Clock with two hour wheels connected to one another by a resilient snap-in connection
US1793051A (en) Microadjusting device
US2780200A (en) Shaft positioning and position indicating apparatus
US2173135A (en) Helical periphery cam
GB1144386A (en) Pre-set tuning mechanism
GB1043445A (en) Improvements in and relating to mechanism for adjusting a rotationally adjustable element
DE2205139B2 (en) Correction device for a watch with multiple time displays
US1601300A (en) Helical plate condenser
US1772372A (en) Vernier adjusting device
GB411713A (en) Improvements in or relating to control mechanism and indicating means for variable condensers, inductances or the like
US1854555A (en) Control mechanism for radio apparatus
US2919518A (en) Machine for lapping or burnishing gears, or like operations
DE969411C (en) Scraping machine
DE576574C (en) Compensation device for compasses
US1624364A (en) Coil with multiple adjustments
US1884610A (en) Mechanical movement
DE866288C (en) Stepless gear transmission
US1536840A (en) Panel mounting for variable-circuit elements
DE639163C (en) Control switch with gear for step transformers
DE561546C (en) Changeable electrical capacitor, in which the rotor plates or the like that are conductively connected to one another to form an electrode are moved individually one after the other and against one another
US1715736A (en) Radio instrument controlling device