GB211751A - Alarm clock - Google Patents

Alarm clock

Info

Publication number
GB211751A
GB211751A GB1111523A GB1111523A GB211751A GB 211751 A GB211751 A GB 211751A GB 1111523 A GB1111523 A GB 1111523A GB 1111523 A GB1111523 A GB 1111523A GB 211751 A GB211751 A GB 211751A
Authority
GB
United Kingdom
Prior art keywords
spring
alarm
alarm clock
terminal
circuit
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
GB1111523A
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 GB1111523A priority Critical patent/GB211751A/en
Publication of GB211751A publication Critical patent/GB211751A/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
    • G04C21/24—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 spring of a mechanical alarm work

Landscapes

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

Abstract

211,751. Anderegg, K. April 24, 1923. Alarms.-In an alarm clock of the kind in which alighting circuit is closed by the uncoiling of the alarm spring, one terminal of the plug switch 2a in the lighting circuit is permanently secured to a looped spring 4, which bears on the alarm spring f and contacts uniformly with the second terminal 3b when the spring f uncoils sufficiently and thus gives a steady light.
GB1111523A 1923-04-24 1923-04-24 Alarm clock Expired GB211751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1111523A GB211751A (en) 1923-04-24 1923-04-24 Alarm clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1111523A GB211751A (en) 1923-04-24 1923-04-24 Alarm clock

Publications (1)

Publication Number Publication Date
GB211751A true GB211751A (en) 1924-02-28

Family

ID=9980306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1111523A Expired GB211751A (en) 1923-04-24 1923-04-24 Alarm clock

Country Status (1)

Country Link
GB (1) GB211751A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460634A (en) * 1946-01-07 1949-02-01 Sr Raymond F Heckmer Alarm clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460634A (en) * 1946-01-07 1949-02-01 Sr Raymond F Heckmer Alarm clock

Similar Documents

Publication Publication Date Title
GB211751A (en) Alarm clock
US2304690A (en) Keyhole illuminator
NL188186B (en) SPRING CONTACT PIN.
CH295216A (en) Cam-controlled contact spring set.
GB774735A (en) Improvements in or relating to clocks
GB288956A (en) Improvements in burglar alarms
GB258669A (en) An improved burglar alarm
GB240075A (en) Improvements in or relating to table or stand-lamps and alarm arrangements connected therewith
GB311530A (en) Vanity cases
GB319985A (en) Improvements relating to fire alarms
GB325627A (en) Improvements in signalling devices applicable for use in the control of traffic
GB314626A (en) Improvements in or relating to electrical switch or key lamp-holders
GB249581A (en) Improvements in or relating to door knockers
GB216187A (en) Improved automatic electrically-lighted alarm clock
GB182755A (en) Improvements in electric alarm devices
GB275759A (en) An improved adapter for electric pendants and the like
FR535786A (en) Electrical alarm and signaling device, especially against break-ins and fire
GB208439A (en) An electric lamp particularly adapted for use as a night pedestal or table lamp
ES54525U (en) Fuse with light indicator (Machine-translation by Google Translate, not legally binding)
GB201210A (en) Improvements in and relating to fire-alarms
CA247073A (en) Electrical burglar alarm
GB776456A (en) Automatic fire alarm
GB206786A (en) Clock time switch
GB182965A (en) Improvements in and connected with electric burglar alarms
GB451221A (en) Automatic time control