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GB1432884A - Acoustical sound producer for timepieces - Google Patents

Acoustical sound producer for timepieces

Info

Publication number
GB1432884A
GB1432884A GB2867174A GB2867174A GB1432884A GB 1432884 A GB1432884 A GB 1432884A GB 2867174 A GB2867174 A GB 2867174A GB 2867174 A GB2867174 A GB 2867174A GB 1432884 A GB1432884 A GB 1432884A
Authority
GB
United Kingdom
Prior art keywords
pin
alarm
timepieces
crystal
electromagnet
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
GB2867174A
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.)
Timex Group USA Inc
Original Assignee
Timex Corp
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 Timex Corp filed Critical Timex Corp
Publication of GB1432884A publication Critical patent/GB1432884A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details

Landscapes

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

Abstract

1432884 Alarm watches TIMEX CORP 27 June 1974 [5 July 1973] 28671/74 Heading G3T An alarm sounding device, e.g. for a watch, comprises a pin 14 of magnetic material attached to the timepiece crystal 10 and extending into the field of an electromagnet 20 so that the pin is directly excited when the electromagnet coil 20a is energized by an oscillator at the alarm time. As shown the coil is wound about a core 20b and attached to a mounting bracket 18 between permanent magnets 22. Pole pieces 24 are fixed to the magnets 22 and lie one on each side of the pin 14, which is ferromagnetic. The bracket is adjustable on watch plate 16 and the crystal 10 is excited at its resonant frequency.
GB2867174A 1973-07-05 1974-06-27 Acoustical sound producer for timepieces Expired GB1432884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2334236A DE2334236C2 (en) 1973-07-05 1973-07-05 Acoustic signal transmitter for clocks, in particular wristwatches

Publications (1)

Publication Number Publication Date
GB1432884A true GB1432884A (en) 1976-04-22

Family

ID=5886039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2867174A Expired GB1432884A (en) 1973-07-05 1974-06-27 Acoustical sound producer for timepieces

Country Status (13)

Country Link
US (1) US3869855A (en)
JP (1) JPS5050072A (en)
AU (1) AU476145B2 (en)
BE (1) BE817298A (en)
CA (1) CA1011562A (en)
CH (2) CH584874A4 (en)
DE (1) DE2334236C2 (en)
DK (1) DK359174A (en)
FR (1) FR2236223B3 (en)
GB (1) GB1432884A (en)
HK (1) HK76676A (en)
NL (1) NL7409142A (en)
SE (1) SE389564B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5661897A (en) * 1979-10-24 1981-05-27 Hitachi Ltd Display unit
CH632385B (en) * 1979-11-02 Ebauchesfabrik Eta Ag WATCH WITH ELECTRO-ACOUSTIC WARNING DEVICE.
JP2624412B2 (en) * 1991-09-30 1997-06-25 ワイケイケイ株式会社 Warp knitting tape for hidden slide fasteners
CH686600B5 (en) * 1994-07-25 1996-11-15 Asulab Sa Timepiece including an electro-acoustic transducer.
JP4251515B2 (en) * 2000-04-24 2009-04-08 シチズン電子株式会社 Electromagnetic sound generator
CH698533B1 (en) * 2005-03-11 2009-08-31 Richemont Int Sa Device for fixing at least one ringing tone in a timepiece and a method of attaching at least one ringing tone in a timepiece.
EP1708051A1 (en) * 2005-03-31 2006-10-04 Zenith International SA Timepiece comprising an alarm
EP2228693B1 (en) * 2009-03-13 2013-03-13 Bulgari Horlogerie S.A. Fixing device for the gongs of a sonnerie watch
CH704199A2 (en) * 2010-12-10 2012-06-15 Montres Breguet Sa Striking mechanism for watch, has wheel operated, so that movable magnetic element comes near and opposite to fixed magnetic element, to vibrate gong by repetitive variation of magnetic repulsive force of elements, in striking mode

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH896768A4 (en) * 1966-02-17 1971-09-15
BE789336A (en) * 1971-09-29 1973-01-15 Timex Corp ELECTRONIC ALARM WATCH

Also Published As

Publication number Publication date
CH584874A4 (en) 1977-01-31
DE2334236B1 (en) 1974-11-14
FR2236223B3 (en) 1977-05-06
US3869855A (en) 1975-03-11
NL7409142A (en) 1975-01-07
CA1011562A (en) 1977-06-07
DK359174A (en) 1975-02-24
FR2236223A1 (en) 1975-01-31
AU476145B2 (en) 1976-09-09
JPS5050072A (en) 1975-05-06
SE7408733L (en) 1975-01-07
DE2334236C2 (en) 1975-07-10
AU7051774A (en) 1976-01-08
CH590517B5 (en) 1977-08-15
BE817298A (en) 1974-11-04
SE389564B (en) 1976-11-08
HK76676A (en) 1976-12-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee