GB1416032A - Alarm clock mechanism - Google Patents

Alarm clock mechanism

Info

Publication number
GB1416032A
GB1416032A GB1640173A GB1640173A GB1416032A GB 1416032 A GB1416032 A GB 1416032A GB 1640173 A GB1640173 A GB 1640173A GB 1640173 A GB1640173 A GB 1640173A GB 1416032 A GB1416032 A GB 1416032A
Authority
GB
United Kingdom
Prior art keywords
cam
lever
sleep
pawl
switch
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
GB1640173A
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 GB1416032A publication Critical patent/GB1416032A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
    • G04F3/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with electric driving mechanisms
    • G04F3/08—Additional arrangements in connection with ordinary electric clocks for this purpose
    • 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

Abstract

1416032 Time switches GENERAL ELECTRIC CO 5 April 1973 [7 April 1972] 16401/73 Heading H1N [Also in Division G3] An alarm clock mechanism comprises a switch 202, a timing motor (not shown), a sleep cam 215 operably connected to said switch for closing it for a predetermined time interval, manual means for moving said sleep cam to open or close said switch, ratchet teeth 298 on said sleep cam 215 for moving it from a switchclosed position to a switch-open position by said timing motor, a pawl lever 300 with a pawl 305 and means to move it into engagement with said teeth 298, drive mechanism connected to said timing motor for moving said pawl back and forth to step said sleep cam 215 as a function of time to thereby open said switch at the end of said time interval. As shown the alarm cam mechanism is as disclosed in Specification 1,416,031 and actuates switch 202 by specially shaped lever 212 upon axial movement of rod 242, the lever 212 being coupled to sleep cam 215 by lever 268 which is pivoted at 274 and has a cam-follower nose 276. An eccentric (106, Fig. 2, not shown) driven by a synchronous motor (111) oscillates lever 86 (Fig. 9) about pivot 88 once per minute. Lever 86 carries a pawl (84) to step a cam 52 for digital time indication, but the pawl 300, pivoted at 307 on lever 86, engages ratchet teeth 298 only when permitted by flats 324 and 326 twice per revolution of cam 52, i.e. every five minutes. Thus sleep cam 215 is stepped one increment every five minutes. After a sleep period, predetermined by setting the initial angular position of cam 215 by means of shaft 304, notch 294 is brought under nose 276, and lever 268, urged by a spring (278, Fig. 5, not shown), lifts lever 212 which is cammed by shaft 242 to move transversely and opens contacts 206, 208. Besides setting a short time interval the sleep cam 215 may be set manually to ON and OFF positions in which the lever 268 is respectively cammed into high or low notches 301 and 294, to close or open the contacts 206, 208. In these positions of cam 215 a smooth portion 306 without ratchet teeth is adjacent pawl 305 and no stepping can occur.
GB1640173A 1972-04-07 1973-04-05 Alarm clock mechanism Expired GB1416032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24203272A 1972-04-07 1972-04-07

Publications (1)

Publication Number Publication Date
GB1416032A true GB1416032A (en) 1975-12-03

Family

ID=22913199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1640173A Expired GB1416032A (en) 1972-04-07 1973-04-05 Alarm clock mechanism

Country Status (7)

Country Link
US (1) US3725615A (en)
JP (1) JPS5336793B2 (en)
CH (2) CH457473A4 (en)
DE (1) DE2317734C3 (en)
FR (1) FR2179209B1 (en)
GB (1) GB1416032A (en)
HK (1) HK44477A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134891A (en) * 1978-04-12 1979-10-19 Matsushita Electric Works Ltd Profiling jig carriages in grinder line
US20040141249A1 (en) * 2003-01-21 2004-07-22 Friedman Arthur S. Sleep switch device for an audio cassette player
USD842258S1 (en) * 2016-03-29 2019-03-05 Kevin Somers Electrical circuit breaker charge cam

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505573A (en) * 1949-02-03 1950-04-25 Telechron Inc Time switch with multiple manual and automatic controls
US3033948A (en) * 1956-08-20 1962-05-08 Gen Electric Time switch and alarm
US3078358A (en) * 1960-01-26 1963-02-19 Gen Electric Time switch
US3086351A (en) * 1960-03-11 1963-04-23 Gen Electric Combined switch and alarm actuating apparatus
US3062931A (en) * 1961-05-16 1962-11-06 Gen Electric Alarm control mechanism
US3136114A (en) * 1961-07-06 1964-06-09 Gen Time Corp Telephone call timer
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

Also Published As

Publication number Publication date
US3725615A (en) 1973-04-03
DE2317734B2 (en) 1975-06-26
HK44477A (en) 1977-09-09
FR2179209B1 (en) 1977-02-04
JPS5336793B2 (en) 1978-10-04
CH457473A4 (en) 1976-02-13
FR2179209A1 (en) 1973-11-16
DE2317734A1 (en) 1973-10-18
CH578761B5 (en) 1976-08-13
DE2317734C3 (en) 1978-09-07
JPS498776A (en) 1974-01-25

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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