GB1171082A - Electrical Switches Device. - Google Patents

Electrical Switches Device.

Info

Publication number
GB1171082A
GB1171082A GB03999/68A GB1399968A GB1171082A GB 1171082 A GB1171082 A GB 1171082A GB 03999/68 A GB03999/68 A GB 03999/68A GB 1399968 A GB1399968 A GB 1399968A GB 1171082 A GB1171082 A GB 1171082A
Authority
GB
United Kingdom
Prior art keywords
contact
full line
line position
bus
bar
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
GB03999/68A
Inventor
Frederick Preston Willcox
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
Priority to GB03999/68A priority Critical patent/GB1171082A/en
Priority to FR153312A priority patent/FR1593526A/fr
Publication of GB1171082A publication Critical patent/GB1171082A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • 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
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/013—Modifications of generator to prevent operation by noise or interference

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

1,171,082. Momentary contact switches. F. P. WILLCOX. 22 March, 1968, No. 13999/68. Heading H1N. On depression of plunger 26 to the full line position a contact carrying tongue 38 of spring 14 snaps over centre from its rest position in contact with mounting plate 34 to the full line position and travels beyond this position to contact bus-bar 16, and thereafter vibrates about this full line position to make several successive contacts with bus-bar 16. After about 10 milliseconds, the vibrations damp out and tongue 38 comes to rest in the full line position. On release of plunger 26, spring 14 returns it to its normal position and tongue 38 snaps back into abutment with plate 34. Several plungers 26 and springs 14 are arranged in a keyboard in staggered rows, a bus-bar 16 being provided for each row (Fig. 1), and control printers, typewriters &c. through semi-conductor or solid state devices, the current pulses triggering such devices. Snap action of spring 14, of phosphor bronze, is provided by forming a depression (40, Fig. 8) in the mounting end. The contact chattering provides a wiper action which improves self-cleaning.
GB03999/68A 1968-03-22 1968-03-22 Electrical Switches Device. Expired GB1171082A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB03999/68A GB1171082A (en) 1968-03-22 1968-03-22 Electrical Switches Device.
FR153312A FR1593526A (en) 1968-03-22 1968-05-29

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB03999/68A GB1171082A (en) 1968-03-22 1968-03-22 Electrical Switches Device.
FR153312 1968-05-29

Publications (1)

Publication Number Publication Date
GB1171082A true GB1171082A (en) 1969-11-19

Family

ID=26182036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03999/68A Expired GB1171082A (en) 1968-03-22 1968-03-22 Electrical Switches Device.

Country Status (2)

Country Link
FR (1) FR1593526A (en)
GB (1) GB1171082A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088854A (en) * 1975-07-24 1978-05-09 Kabushiki Kaisha Daini Seikosha Electronic timepiece switch mechanism having substrate mounted pivoted contact and lever or cam actuator
EP0099427A1 (en) * 1980-09-24 1984-02-01 Engineering Research Applications, Inc. Keyboard
USRE32419E (en) * 1981-03-16 1987-05-12 Engineering Research Applications, Inc. Molded keyboard and method of fabricating same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1237751A (en) * 1981-12-29 1988-06-07 Zenichi Kitao Cam actuated alternate on-off push button switch
EP0618634B1 (en) * 1993-03-31 1998-07-29 Robert Bosch Gmbh Coaxial switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088854A (en) * 1975-07-24 1978-05-09 Kabushiki Kaisha Daini Seikosha Electronic timepiece switch mechanism having substrate mounted pivoted contact and lever or cam actuator
EP0099427A1 (en) * 1980-09-24 1984-02-01 Engineering Research Applications, Inc. Keyboard
USRE32419E (en) * 1981-03-16 1987-05-12 Engineering Research Applications, Inc. Molded keyboard and method of fabricating same

Also Published As

Publication number Publication date
FR1593526A (en) 1970-06-01

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