GB448559A - An alarm clock electric time switch - Google Patents

An alarm clock electric time switch

Info

Publication number
GB448559A
GB448559A GB3544034A GB3544034A GB448559A GB 448559 A GB448559 A GB 448559A GB 3544034 A GB3544034 A GB 3544034A GB 3544034 A GB3544034 A GB 3544034A GB 448559 A GB448559 A GB 448559A
Authority
GB
United Kingdom
Prior art keywords
alarm
alarm clock
arm
time switch
electric time
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
GB3544034A
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.)
ADONIS HENRY WARTON
Original Assignee
ADONIS HENRY WARTON
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 ADONIS HENRY WARTON filed Critical ADONIS HENRY WARTON
Priority to GB3544034A priority Critical patent/GB448559A/en
Publication of GB448559A publication Critical patent/GB448559A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/20—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm
    • G04C21/26—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm put into action by the vibrations caused by the operation of a mechanical alarm work

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

448,559. Time switches. WARTON, A. H., 69, Milton Road, Hanwell, London. Dec. 10, 1934, No. 35440. [Class 38 (v)] An alarm clock switch has a contact arm 12 pivoted on a termina post 3 and adapted when the alarm goes off to be moved by an ex tension 19 of the hammer movement so as to engage a fixed contact 4 When the alarm wine spring 25 unwinds it expands and engages the lower part 16 of the con tact arm to move it back to the off position. When the alarm mechanism is held off by a manual catch 20 and the spring 25 is wound, the switch arm can be moved on and off at will by means of an operating knob 23.
GB3544034A 1934-12-10 1934-12-10 An alarm clock electric time switch Expired GB448559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3544034A GB448559A (en) 1934-12-10 1934-12-10 An alarm clock electric time switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3544034A GB448559A (en) 1934-12-10 1934-12-10 An alarm clock electric time switch

Publications (1)

Publication Number Publication Date
GB448559A true GB448559A (en) 1936-06-10

Family

ID=10377751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3544034A Expired GB448559A (en) 1934-12-10 1934-12-10 An alarm clock electric time switch

Country Status (1)

Country Link
GB (1) GB448559A (en)

Similar Documents

Publication Publication Date Title
GB653509A (en) Electric multi-pole switches
GB1443583A (en) Electric switches
GB448559A (en) An alarm clock electric time switch
GB645595A (en) Improvements in delay-action retractive electric switches
US2091205A (en) Electrical circuit with alarm control device for alarm clocks
GB373554A (en) Improvements in electric time switches
GB516673A (en) A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehicles
GB380416A (en) Apparatus for indicating the direction of travel by means of electro-magnetically actuated direction indicators, in particular for motor vehicles
GB709291A (en) Improvements relating to electric switches having arcing contacts
GB225493A (en) Improvements in electrically controlled signalling apparatus
GB833336A (en) Improvements in or relating to snap-action electric switches
GB289567A (en) Improvements on adjustable automatic switch for electric lighting
GB961102A (en) Electric toggle switch
GB384527A (en) Improvements in and relating to electric cooking apparatus
GB1029592A (en) Improvements in or relating to snap-action electric switches
GB224632A (en) Improvements in electrically controlled signalling apparatus
GB666668A (en) Improvements relating to snap-action electric switches
GB398387A (en) Improvements in clock-operated electric switches
GB364271A (en) Improvements in electric hot-plates
GB345045A (en) Improvements in electric switches, of the push and pull type
GB510657A (en) Improvements in electric tumbler switches
GB188975A (en) Improvements in or relating to electrical control systems and switch mechanism therefor
GB439953A (en) Improvements relating to clockwork driven apparatus for operating electric switches
GB536854A (en) Improved time-switching device for apparatus or machinery employing electric current
GB206140A (en) Improvements in electromagnetic switches