GB1025447A - Electrical switches and applications thereof - Google Patents

Electrical switches and applications thereof

Info

Publication number
GB1025447A
GB1025447A GB6983/63A GB698363A GB1025447A GB 1025447 A GB1025447 A GB 1025447A GB 6983/63 A GB6983/63 A GB 6983/63A GB 698363 A GB698363 A GB 698363A GB 1025447 A GB1025447 A GB 1025447A
Authority
GB
United Kingdom
Prior art keywords
contact
web
sensing
members
engagement
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
GB6983/63A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1025447A publication Critical patent/GB1025447A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H1/28—Assembly of three or more contact-supporting spring blades
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/14—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using punched cards or tapes
    • 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
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/02—Details
    • H01H43/04—Means for time setting
    • H01H43/08—Means for time setting comprising an interchangeable programme part which is common for all programme steps, e.g. with a punched card

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Push-Button Switches (AREA)

Abstract

1,025,447. Stencil switches; momentarycontact switches. WESTERN ELECTRIC CO. Inc. Feb. 21, 1963 [Feb. 26, 1962], No. 6983/63. Heading H2B. In an electric switch, sensing members 24, comprising a shaft 28 and head 26 detect the presence of a coding perforation in a web 14. Each head 26 extends through an aperture 18 in a separator 10 and makes rolling contact with the web 12 which is moved through a guide channel 11 in the separator 10, the head moving into a perforation in the web when one passes it. The sensing members are kept in engagement with the web 12 by contact members 46, 48 and 50, the contact member 46 being stationary and engaging a datum bar 36 which holds the sensing members 24 in the apertures 18, the contact member 48 engaging the shaft 28 of the sensing member 24. The contact member 50 is biased towards the bar 36 but is normally held off by the contact 48, but, when the sensing member moves inward, owing to the presence of a perforation, the contact 50 is permitted to move forward into engagement with stationary contact 46. Following this engagement contact 48 continues to move slightly, out of engagement with contact 50. A comb 22 keeps the ends of the contact members in correct relationship and the datum bar 36 may be additionally supported by a further sensing member 58, bearing on the web 12 but not in register with any of the perforations. In another embodiment, the sensing member is in two parts (see Fig. 4, not shown), the first part carrying the stationary contact and being in alignment with the spaces between the perforations and a second part, aligned with the rows of perforations, supporting the movable contact member.
GB6983/63A 1962-02-26 1963-02-21 Electrical switches and applications thereof Expired GB1025447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US175718A US3144524A (en) 1962-02-26 1962-02-26 Web actuated switch

Publications (1)

Publication Number Publication Date
GB1025447A true GB1025447A (en) 1966-04-06

Family

ID=22641364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6983/63A Expired GB1025447A (en) 1962-02-26 1963-02-21 Electrical switches and applications thereof

Country Status (4)

Country Link
US (1) US3144524A (en)
BE (1) BE628838A (en)
GB (1) GB1025447A (en)
NL (1) NL289418A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1148641A (en) * 1966-02-16 1969-04-16 Sealectro Corp Improvements in or relating to electrical switches and devices employing electrical switches
US4060702A (en) * 1976-01-09 1977-11-29 Wallace Leon Linn Timer switch assembly having escapement mechanism
US4046980A (en) * 1976-04-20 1977-09-06 Bell Telephone Laboratories, Incorporated Cam actuated switch
JP2660834B2 (en) * 1985-06-27 1997-10-08 ダイボールド インコーポレーテッド A device to identify and show the contents of a document canister

Also Published As

Publication number Publication date
US3144524A (en) 1964-08-11
BE628838A (en)
NL289418A (en)

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