GB561824A - Improvements in and relating to electric push button switches - Google Patents

Improvements in and relating to electric push button switches

Info

Publication number
GB561824A
GB561824A GB326043A GB326043A GB561824A GB 561824 A GB561824 A GB 561824A GB 326043 A GB326043 A GB 326043A GB 326043 A GB326043 A GB 326043A GB 561824 A GB561824 A GB 561824A
Authority
GB
United Kingdom
Prior art keywords
contact
stem
spring
contacts
button
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
GB326043A
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.)
FRANK METCALFE
Blackburn Aircraft Ltd
Original Assignee
FRANK METCALFE
Blackburn Aircraft 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 FRANK METCALFE, Blackburn Aircraft Ltd filed Critical FRANK METCALFE
Priority to GB326043A priority Critical patent/GB561824A/en
Publication of GB561824A publication Critical patent/GB561824A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)

Abstract

561,824. Press 'button retractive switches. BLACKBURN AIRCRAFT, Ltd., and METCALFE, F. Feb. 27, 1943, No. 3260. [Class 38 (v)] A retractive switch has at least two contact members adapted.to bridge pairs of contacts simultaneously, and dash-pot means for retarding'the return of at least one of the contact closing members. Thus, in the example, the contact member 7, displaceable against a spring 5 on a stem 3 and a further contact member 8 displaceable against a spring 6 on a second, co-axial stem 4 and connected to a dashpot device 14 so that on pressing button 2 the contacts are simultaneously closed and the dashpot operated to drive air from a cylinder 15 through a non-return valve 16, while, on releasing the button, contact 7 opens its contacts immediately but stem 4 separates from stem 3 and spring 19 returns contact 8 after an interval determined by the setting of a needle valve 21.
GB326043A 1943-02-27 1943-02-27 Improvements in and relating to electric push button switches Expired GB561824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB326043A GB561824A (en) 1943-02-27 1943-02-27 Improvements in and relating to electric push button switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB326043A GB561824A (en) 1943-02-27 1943-02-27 Improvements in and relating to electric push button switches

Publications (1)

Publication Number Publication Date
GB561824A true GB561824A (en) 1944-06-06

Family

ID=9754968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB326043A Expired GB561824A (en) 1943-02-27 1943-02-27 Improvements in and relating to electric push button switches

Country Status (1)

Country Link
GB (1) GB561824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169410A (en) * 1961-09-18 1965-02-16 Gen Electric Actuating mechanisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169410A (en) * 1961-09-18 1965-02-16 Gen Electric Actuating mechanisms

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