GB1139222A - Improvements in alarm control mechanisms - Google Patents

Improvements in alarm control mechanisms

Info

Publication number
GB1139222A
GB1139222A GB40614/66A GB4061466A GB1139222A GB 1139222 A GB1139222 A GB 1139222A GB 40614/66 A GB40614/66 A GB 40614/66A GB 4061466 A GB4061466 A GB 4061466A GB 1139222 A GB1139222 A GB 1139222A
Authority
GB
United Kingdom
Prior art keywords
gear
alarm
lever
time
detent
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
GB40614/66A
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 GB1139222A publication Critical patent/GB1139222A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/08—Alarm clocks operating on successive days without resetting; operating only once in each 24 hours
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/021—Controls (winding up the alarm; adjusting and indicating the waking time)
    • 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
    • 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)
  • Acoustics & Sound (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1,139,222. Alarm clocks. GENERAL ELECTRIC CO. Sept. 12, 1966 [Oct.18, 1965] , No. 40614/66. Heading G3T. An alarm clock control mechanism comprises a rotatable alarm time set gear 28, the position of which is adjusted by a pinion 32 and a spindle 34, and a lever 48 frictionally connected to the gear 28, the lever having teeth 76 which engage a gear 78 so that the lever may be moved to one of several pre-selected positions in order to vary the position of the alarm time set gear 28. The gear 28 is attached to a shaft 46 and an alarm hand 36, whilst the lever 48 is connected to the gear 28 by a friction coupling comprising a clutch disc 62, a washer 60 and a conical spring 58. A projection 64 on the disc 62 projects through a slot 66 in a supporting plate 4 and enters a recess 68 in the lever 48. On rotating a knob 82, the lever 48 may be rotated into any one of five positions defined by a detent 74 engaging recesses 70, 70 a-d, the friction coupling causing a corresponding rotation of the gear 28. With the detent 74 in the recess 70, the spindle 34 may be rotated to set the alarm to operate at any time, the gear 28 slipping against the disc 62. At the alarm time, projections 30, 38 on the gear 28 and an hour hand gear 16 respectively engage, causing a control lever 26 to release a vibrator 20 which sounds the alarm by striking a portion 24 of a synchronous motor. If it is desired for the alarm to operate at some other time, e. g. half an hour or an hour before or after the time corresponding to the existing setting, the knob 82 is rotated so that the detent 74 engages the appropriate one of the recesses 70 a-d, the friction clutch arrangement rotating the gear 28 the necessary amount. The clock may be mounted on a radio receiver.
GB40614/66A 1965-10-18 1966-09-12 Improvements in alarm control mechanisms Expired GB1139222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497182A US3344598A (en) 1965-10-18 1965-10-18 Alarm control mechanism

Publications (1)

Publication Number Publication Date
GB1139222A true GB1139222A (en) 1969-01-08

Family

ID=23975793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40614/66A Expired GB1139222A (en) 1965-10-18 1966-09-12 Improvements in alarm control mechanisms

Country Status (5)

Country Link
US (1) US3344598A (en)
CH (2) CH1503966A4 (en)
DE (1) DE1955884U (en)
FR (1) FR1502909A (en)
GB (1) GB1139222A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604791A (en) * 1950-04-19 1952-07-29 Rca Corp Radio tuning drive and band selector mechanism
US3280547A (en) * 1965-05-25 1966-10-25 Gen Electric Alarm control mechanism

Also Published As

Publication number Publication date
FR1502909A (en) 1967-11-24
CH1503966A4 (en) 1970-06-30
CH497737A (en) 1970-06-30
DE1955884U (en) 1967-02-16
US3344598A (en) 1967-10-03

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