GB1329169A - Digital alarm clock - Google Patents

Digital alarm clock

Info

Publication number
GB1329169A
GB1329169A GB3291871A GB3291871A GB1329169A GB 1329169 A GB1329169 A GB 1329169A GB 3291871 A GB3291871 A GB 3291871A GB 3291871 A GB3291871 A GB 3291871A GB 1329169 A GB1329169 A GB 1329169A
Authority
GB
United Kingdom
Prior art keywords
alarm
cam
lever
arm
rod
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
GB3291871A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1329169A publication Critical patent/GB1329169A/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
    • G04C21/18—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by mechanically unlocking an electromechanical vibrator, e.g. actuated by the leakage flux of the electric driving means

Landscapes

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

Abstract

1329169 Alarm clocks GENERAL ELECTRIC CO 14 July 1971 [17 July 1970] 32918/71 Heading G3T A digital alarm clock has a resilient magnetic vibrator alarm 10 which is vibrated by the magnetic field of an electric motor 5 and which, in the "alarm set" position Fig. 5 (not shown), is prevented from vibration by a bell crank lever 18 which engages one end of a rod 76. At its other end the rod engages a lever 78 on a pivot 80. The alarm time control mechanism comprises a cam gear 64, with projections 66, and a cam 72 fixed by a spring washer 110 to an alarm time indicating drum 106. Reduction gearing 56, 57, 58, 60 between the movement drive shaft 50, which rotates once an hour, and the cam gear 64, rotates the latter once every twelve hours. When the projections 66 are rotated into alignment with slots 74 in cam 72 the cam gear 64 is urged via rod 76, by the resilient arm 10 towards cam 72, the bell crank lever 18 clears the arm and the alarm sounds Fig. 4 (not shown). The alarm is stopped by a shut off lever 16, Fig. 2 (not shown) engaging the arm 10. The alarm time is set by rotating gear 112 which meshes with teeth 115 on cam 72, an indexing lever 120 holding the cam in position once set.
GB3291871A 1970-07-17 1971-07-14 Digital alarm clock Expired GB1329169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5581770A 1970-07-17 1970-07-17

Publications (1)

Publication Number Publication Date
GB1329169A true GB1329169A (en) 1973-09-05

Family

ID=22000342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3291871A Expired GB1329169A (en) 1970-07-17 1971-07-14 Digital alarm clock

Country Status (5)

Country Link
US (1) US3636699A (en)
CH (2) CH1058871A4 (en)
DE (1) DE2135479A1 (en)
FR (1) FR2099439B1 (en)
GB (1) GB1329169A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224447Y2 (en) * 1972-01-19 1977-06-03
US3903685A (en) * 1972-11-09 1975-09-09 Mansei Kogyo Kk Digital clock
US3875737A (en) * 1973-08-27 1975-04-08 Gen Electric Alarm clock timer
FR2271609B1 (en) * 1974-05-14 1977-06-24 Carpano & Pons
JPS5628551Y2 (en) * 1975-06-05 1981-07-07
US4060972A (en) * 1976-04-08 1977-12-06 Matsushita Electric Works, Ltd. Digital clock
JPS5653345Y2 (en) * 1976-06-30 1981-12-11

Also Published As

Publication number Publication date
FR2099439B1 (en) 1974-04-05
DE2135479A1 (en) 1972-01-20
CH533333A (en) 1972-08-15
US3636699A (en) 1972-01-25
FR2099439A1 (en) 1972-03-17
CH1058871A4 (en) 1972-08-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees