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GB567139A - Improvements in and relating to electric switches of the push-button type - Google Patents

Improvements in and relating to electric switches of the push-button type

Info

Publication number
GB567139A
GB567139A GB1554143A GB1554143A GB567139A GB 567139 A GB567139 A GB 567139A GB 1554143 A GB1554143 A GB 1554143A GB 1554143 A GB1554143 A GB 1554143A GB 567139 A GB567139 A GB 567139A
Authority
GB
United Kingdom
Prior art keywords
bar
push
button
depressed
relating
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
GB1554143A
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.)
ERIC GEORGE FOOKES
Ultra Electric Ltd
Original Assignee
ERIC GEORGE FOOKES
Ultra Electric 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 ERIC GEORGE FOOKES, Ultra Electric Ltd filed Critical ERIC GEORGE FOOKES
Priority to GB1554143A priority Critical patent/GB567139A/en
Publication of GB567139A publication Critical patent/GB567139A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/72—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading
    • 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
    • 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
    • H03J5/24—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/26—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand
    • H03J5/28—Tuning circuits or elements supported on a revolving member with contacts arranged in a plane perpendicular to the axis

Landscapes

  • Push-Button Switches (AREA)

Abstract

567,139. Push-button switches. ULTRA ELECTRIC, Ltd., and FOOKES, E. G. Sept. 22, 1943, No. 15541. [Class 38 (v)] Depression of a push-button a against the action of a return spring c causes the rotation of a moving contact member e which has a projecting arm having a pin-and-slot connection h, i with the bar b fixed to the push-button. The movable contacts are fixed to the disc e by means of bent-over spikes. The bar b may have a recess l adapted to snap into a limb j of its'support to hold the bar in its depressed position. Fig. 1 shows a bank of such switches provided with a releasing bar o arranged to be moved sideways by a projection q on any bar b when this is depressed.' During this sideways movement, any bar b that has been depressed is released by engagement with a cam surface on a hole in the bar o through which hole the bar passes.
GB1554143A 1943-09-22 1943-09-22 Improvements in and relating to electric switches of the push-button type Expired GB567139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1554143A GB567139A (en) 1943-09-22 1943-09-22 Improvements in and relating to electric switches of the push-button type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1554143A GB567139A (en) 1943-09-22 1943-09-22 Improvements in and relating to electric switches of the push-button type

Publications (1)

Publication Number Publication Date
GB567139A true GB567139A (en) 1945-01-30

Family

ID=10060953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1554143A Expired GB567139A (en) 1943-09-22 1943-09-22 Improvements in and relating to electric switches of the push-button type

Country Status (1)

Country Link
GB (1) GB567139A (en)

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