GB1416031A - Alarm clock mechanism - Google Patents

Alarm clock mechanism

Info

Publication number
GB1416031A
GB1416031A GB1640073A GB1640073A GB1416031A GB 1416031 A GB1416031 A GB 1416031A GB 1640073 A GB1640073 A GB 1640073A GB 1640073 A GB1640073 A GB 1640073A GB 1416031 A GB1416031 A GB 1416031A
Authority
GB
United Kingdom
Prior art keywords
cam
follower
shaft
clock mechanism
april
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
GB1640073A
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 GB1416031A publication Critical patent/GB1416031A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)

Abstract

1416031 Time switches GENERAL ELECTRIC CO 5 April 1973 [7 April 1972] 16400/73 Heading H1N [Also in Division G3] In an alarm clock mechanism having two coaxial cam members 219 and 220 which are mutually axially movable by spring force at a predetermined relative angular position to actuate a control mechanism (such as a vibrator or a switch), one of said cam members 219 supports a cam follower 222 which is rotatable therewith for co-operation with axially raised and lower cam surfaces of the other cam member 220 to permit their relative axial movement, and said cam follower 222 is mounted for movement with respect to the cam member 219 on which it is supported for permitting said follower 222 to remain on the lower cam surface so that the clock mechanism is not required to restore said follower 222 to said raised surface against the spring force. As shown, cam member 220 is carried by a gear 218 which is driven at one revolution in twelve hours by timer pinion 224 and is mounted on a shaft 242, the front end of which is slidable in a bore (Fig. 6, not shown) in shaft 230. A switch blade 202 acts on shaft 242 to urge cam 220 into abutment with follower 222. Cam member 219 together with indicator disc 234 and knob 232 are secured on shaft 230 and allow the angular position of follower 222, and hence the operating time, to be set manually. The follower 222 comprises a sheet metal angle piece (308, 310, Figs. 9 and 10, not shown) passing through a slot in member 219 and held in the position shown by a leaf spring 252 but able to pivot on member 219. After dropping into the recess, or lower cam surface, of cam 220, and thus allowing contacts 206, 208 to close, follower 222 is pivoted slightly outwardly by the continuing rotation of cam 220 to remain on its periphery. Thus no appreciable addition is made to the torque requirements of the clock motor, the follower 222 being returned to the raised surface of cam 220 by manual rotation of a cam 216. This acts on one arm 264 of a lever pivoted at 256, 258, the other arm 260 then moving cam 220 and shaft 242 rearwardly. Cam 216 may be left in this position when it is desired to prevent timed closure of the contacts.
GB1640073A 1972-04-07 1973-04-05 Alarm clock mechanism Expired GB1416031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24196372A 1972-04-07 1972-04-07

Publications (1)

Publication Number Publication Date
GB1416031A true GB1416031A (en) 1975-12-03

Family

ID=22912910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1640073A Expired GB1416031A (en) 1972-04-07 1973-04-05 Alarm clock mechanism

Country Status (6)

Country Link
US (1) US3740502A (en)
JP (1) JPS5336794B2 (en)
CH (2) CH481473A4 (en)
FR (1) FR2179208B1 (en)
GB (1) GB1416031A (en)
HK (1) HK44377A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121308A (en) * 1974-08-15 1976-02-20 Bridgestone Tire Co Ltd SUIJOSHISETSUSHIJOKOKANKUINO BOSHOKUKABAA
JPS6224737U (en) * 1985-07-29 1987-02-14
US6797897B2 (en) * 1999-08-02 2004-09-28 France/Scott Fetzer Company Timer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325812A (en) * 1941-09-06 1943-08-03 Philco Radio & Television Corp Clock controlled mechanism
US2587026A (en) * 1947-11-14 1952-02-26 Gen Time Corp Time switch
US2505573A (en) * 1949-02-03 1950-04-25 Telechron Inc Time switch with multiple manual and automatic controls
US2768332A (en) * 1953-11-23 1956-10-23 Gen Electric Timing device
US3407402A (en) * 1965-06-03 1968-10-22 Gen Time Corp Clock alarm mechanism having impulsed striker apparatus
US3432625A (en) * 1967-04-13 1969-03-11 Gen Electric Timer switch
US3475899A (en) * 1967-06-08 1969-11-04 Gen Electric Radio and alarm control mechanism
US3598937A (en) * 1970-04-13 1971-08-10 Gen Electric Clock timer switch

Also Published As

Publication number Publication date
CH481473A4 (en) 1976-02-13
JPS498777A (en) 1974-01-25
JPS5336794B2 (en) 1978-10-04
FR2179208A1 (en) 1973-11-16
FR2179208B1 (en) 1977-02-04
US3740502A (en) 1973-06-19
HK44377A (en) 1977-09-09
CH578762B5 (en) 1976-08-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee