GB571541A - Means for operating an electric switch at a pre-determined time - Google Patents

Means for operating an electric switch at a pre-determined time

Info

Publication number
GB571541A
GB571541A GB1085343A GB1085343A GB571541A GB 571541 A GB571541 A GB 571541A GB 1085343 A GB1085343 A GB 1085343A GB 1085343 A GB1085343 A GB 1085343A GB 571541 A GB571541 A GB 571541A
Authority
GB
United Kingdom
Prior art keywords
contact
cam
operating
pendulum
electric switch
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
GB1085343A
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 GB1085343A priority Critical patent/GB571541A/en
Publication of GB571541A publication Critical patent/GB571541A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
    • G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

571,541. Time switches. WARD, H. Sept. 5, 1943, No. 10853. [Class 38 (v)] At a predetermined time, a step in a clockwork-driven cam 8 reaches a pin 6, whereupon the cam moves bodily to the left to effect a momentary closure of a circuit. In the form shown the bodily movement of the cam is caused by a spring 4 which gives an impulse to a pendulum 1 causing this to momentarily engage a fixed contact 9. In modifications, the pendulum operates a rotary switch or a tilting mercury switch or causes a contact to pass rapidly over the conducting side of a member whose other side is insulating 4 and is engaged during the slow return movement of the contact.
GB1085343A 1943-09-05 1943-09-05 Means for operating an electric switch at a pre-determined time Expired GB571541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1085343A GB571541A (en) 1943-09-05 1943-09-05 Means for operating an electric switch at a pre-determined time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1085343A GB571541A (en) 1943-09-05 1943-09-05 Means for operating an electric switch at a pre-determined time

Publications (1)

Publication Number Publication Date
GB571541A true GB571541A (en) 1945-08-29

Family

ID=9975519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1085343A Expired GB571541A (en) 1943-09-05 1943-09-05 Means for operating an electric switch at a pre-determined time

Country Status (1)

Country Link
GB (1) GB571541A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211706B (en) * 1962-08-09 1966-03-03 Max Planck Gesellschaft Electric pulse generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211706B (en) * 1962-08-09 1966-03-03 Max Planck Gesellschaft Electric pulse generator

Similar Documents

Publication Publication Date Title
GB976993A (en) A momentary contact electric switch particularly for use in a cardiac defibrillator
GB581824A (en) Improvements in or relating to snap action electrical switches
GB571541A (en) Means for operating an electric switch at a pre-determined time
GB763245A (en) Improvements in or relating to electric switches or switchgear
GB558543A (en) Improvements in or relating to electric wall switches
GB548472A (en) Improvements relating to electric circuit breakers having magnetic blow-outs
GB617372A (en) Improvements in multiple-contact switches and relays
GB534961A (en) Improvements in or relating to electric motor controllers and snap-action electric switches for use therein
GB709291A (en) Improvements relating to electric switches having arcing contacts
CA430285A (en) Circuit breaker movable contacts
GB593725A (en) Improvements in or relating to push-button switches
GB221440A (en) Improvements in apparatus for opening and closing electric circuits at predeterminedtimes
GB561004A (en) Improvements in snap-action electric switches
GB790435A (en) Improvements in and relating to electrical contacts
GB780222A (en) Improvements in or relating to contact arrangements in electric switches
AU128760B2 (en) An improved circuit controller ofthe cam actuated switch type
GB563848A (en) Pendulum operated switch
GB181778A (en) Improvements in electric switches
GB558365A (en) Improvements relating to electric push-button switches
GB577393A (en) Improvements in electrical tumbler switches
AU2522845A (en) An improved circuit controller ofthe cam actuated switch type
GB712122A (en) Retractive electric switches
GB626995A (en) Snap-action electric switch
GB588749A (en) An improved quick-break motor protection switch
GB636216A (en) Improvements in snap-action electric switches