GB654777A - Improvements in or relating to electric push-button switches - Google Patents

Improvements in or relating to electric push-button switches

Info

Publication number
GB654777A
GB654777A GB14802/48A GB1480248A GB654777A GB 654777 A GB654777 A GB 654777A GB 14802/48 A GB14802/48 A GB 14802/48A GB 1480248 A GB1480248 A GB 1480248A GB 654777 A GB654777 A GB 654777A
Authority
GB
United Kingdom
Prior art keywords
contact
button
switches
push
depressed
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
GB14802/48A
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.)
Space Systems Loral LLC
Original Assignee
Philco Ford Corp
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 Philco Ford Corp filed Critical Philco Ford Corp
Publication of GB654777A publication Critical patent/GB654777A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03J5/248—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 using electromechanical means
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0066—Auxiliary contact devices

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)

Abstract

654,777. Press-button retractive switches; keyboard switches. PHILCO CORPORATION. June 1, 1948, No. 14802. Convention date, June 11, 1947. [Class 38(v)] [Also in Group XXXVIII] A switching arrangement for selecting one of a number of pretuned radio circuits comprises a number of push - button switches 16...21, each having a slidable conducting member 22 normally urged to an outer "off " position by a spring 24, the nembers 22 normally being connected in series by U-shaped elements 53 arranged in base recesses between the switches. The elements 53 have contact portions 54, 55 cooperating with the right-hand edges of members 22, each of which has a recess 73 which is moved opposite the corresponding contact 54 when the push-button is depressed, so as to isolate all of the members 22 to the right thereof. The left-hand member 22 engages a contact 44 connected to earth, and each member 22 also has a recess 73a normally arranged opposite a fixed contact 50 or 70, which engages the lefthand edge of a member 22 when depressed, the earthing contact 44 thereby being connected to the corresponding contact 50 or 70 to complete a selector operating circuit. The inner end of each member 22 is bevelled at 31 and cooperates with a bevelled part 32 on an insulating slide 34, so that when a member 22 is depressed, the slide moves to the right to close a loudspeaker muting switch 37, 39, the resilience of contact 37 returning the slide 34 to its normal position when the member 22 is released. A lamp 76 is associated with each switch and is connected in circuit after its push-button has been released, an element 92 conducting the light from the lamp to the switch panel (not shown), adjacent the buttons.
GB14802/48A 1947-06-11 1948-06-01 Improvements in or relating to electric push-button switches Expired GB654777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US754013A US2544535A (en) 1947-06-11 1947-06-11 Switching apparatus

Publications (1)

Publication Number Publication Date
GB654777A true GB654777A (en) 1951-06-27

Family

ID=25033117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14802/48A Expired GB654777A (en) 1947-06-11 1948-06-01 Improvements in or relating to electric push-button switches

Country Status (2)

Country Link
US (1) US2544535A (en)
GB (1) GB654777A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864957A (en) * 1954-11-10 1958-12-16 Philco Corp Signal-seeking device
US2904662A (en) * 1957-12-30 1959-09-15 Bell Telephone Labor Inc Circuit controller

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB331619A (en) *
US2081686A (en) * 1928-07-19 1937-05-25 Rca Corp Remote control apparatus for electric tuning systems
GB366607A (en) * 1930-11-11 1932-02-11 Siemens Brothers & Co Ltd Improvements relating to locking and interlocking arrangements for electric circuit closing devices
US2344914A (en) * 1937-12-31 1944-03-21 Lloyd J Andres Remote controller
US2362690A (en) * 1942-10-21 1944-11-14 Gen Motors Corp Tuning mechanism

Also Published As

Publication number Publication date
US2544535A (en) 1951-03-06

Similar Documents

Publication Publication Date Title
GB721805A (en) Improvements in signal seeking radio receivers
GB654777A (en) Improvements in or relating to electric push-button switches
US3476890A (en) Switch
GB1081550A (en) Vacuum circuit interrupter with condensing shield serving as one of the main contacts
GB692544A (en) Improvements relating to push-button mechanisms
US2232582A (en) Control device for radio receivers and the like
US3267246A (en) Actuating arrangement for tandem devices
GB957254A (en) A push-button electric switch assembly
GB538389A (en) Improvements in or relating to wireless receivers with bandspread tuning
GB526886A (en) Tuning control device for radio receivers and the like
GB807286A (en) Improvements in or relating to push-button operated switching devices, more particularly for use in radio receivers
GB831915A (en) Improvements in or relating to electric switching devices
GB603924A (en) Improvements in or relating to push button electrical switch assemblages
GB1088083A (en) Improvements in or relating to single-pole or multi-pole switching devices of the snap-action and double break type
US2855507A (en) Radio tuning keyboard with interlocking station and band keys with independently depressable band keys
GB1486051A (en) Electrical contact elements for keyswitches
GB1478396A (en) Excess current switching device
GB596069A (en) Electric keyboard circuit controller
GB875203A (en) Push button electric switch
GB1336810A (en) Selectro keyboards
GB543639A (en) Improvements in or relating to the control mechanism of wireless receivers
GB1251724A (en)
GB566135A (en) Improvements in or relating to radio-receivers adapted to be automatically tuned to a number of pre-determined stations
GB1053633A (en)
GB1030054A (en) Improvements relating to electric switches