US3166887A - Electric alarm clock - Google Patents

Electric alarm clock Download PDF

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Publication number
US3166887A
US3166887A US320729A US32072963A US3166887A US 3166887 A US3166887 A US 3166887A US 320729 A US320729 A US 320729A US 32072963 A US32072963 A US 32072963A US 3166887 A US3166887 A US 3166887A
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US
United States
Prior art keywords
alarm
arm
rod
control rod
contact
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 - Lifetime
Application number
US320729A
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English (en)
Inventor
Jaccard Rene-Philippe
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Individual
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Individual
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Publication date
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Publication of US3166887A publication Critical patent/US3166887A/en
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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
    • 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
    • G04B23/10—Alarm clocks with presignal; with repeated signal; with changeable intensity of sound
    • 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
    • G04C21/36—Signal repeating devices
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/02—Constructional details
    • G04C23/06—Driving or regulating means

Definitions

  • Electric alarm clocks are generally provided with releasing means which disengage the alarm mechanism once every twelve or twenty-four hours. Thus, each release allows the alarm to operate during a more or less protracted time. It is a well-known fact that a sleeper is impressed by the beginning ot'the ringing of a bell and it is not necessary for the ringing to last a long time for its operation to be efiicient, but it would be preferable to provide an intermittent ringing.
  • Alarm clocks have already been made, wherein a mechanically controlled bell sounds for a short time and repeats its call until the sleeper is ready to cut oil the ringing.
  • Embodiments have also been proposed for actuating a radio or an optic system. Such arrangements show the drawback that they do not automatically stop operating.
  • An object of the invention is to provide an electric alarm clock with a releasing system which provides for the operation of an alarm system once every twenty-four hours.
  • a rigid rod with two radial arms is rotated through action on one of its arms of a mechanism forming part of the timing or counting gearwork. The rotation causes the other arm on the rod to sweep over a series of contact-pieces inserted in parallel in an electric alarm circuit, whereby the alarm system operates each time said other arm passes over a contactpiece and is interrupted each time the arm passes over a non-conductive area between two successive contactpieces, the number of alarm. signals being defined by the number of contact-pieces provided.
  • FIGS. 1 and 2 are plan views of the alarm system for two different positions thereof
  • FIGS. 3 and 4 are cross-sectional illustrations through line III-III of FIG. 1, showing the alarm system and the means for releasing same, for two different positions of the latter.
  • the angularly and vertically shiftable cylindrical control rod carries radially two arms 2 and 3 of which the arm 2 engages through its reinforced outer end the periphery of a cam 4 driven by the timing or counting gearwork of the clockwork.
  • the arm 3 the end of which is bent downwardly, engages an insulating plate 5.
  • the plate 5 carries a plurality of contact-pieces 6 inserted in parallel in the electric alarm circuit.
  • the cam 4 engaged by the arm 2 is constituted by a cylindrical d-isc over the transverse surface of which are provided four substantially spiral-shaped grooves '7 while a core 8 is provided centrally on said disc.
  • FIGS. 3 and 4 show the cylindrical rod 1 as engaging through its tip the side of a wheel 16 of the unlocking mechanism.
  • the unlocking mechanism is of a conventional type and includes the releasing wheel 10 carrying a depending cylindrical pin 11.
  • the releasing wheel 10 extends above a wheel 12 and is rigid with respect to the cam 13 provided with notches 14.
  • the wheel 19 is driven at the rate of one revolution per twenty-four hours by the motion work, whereas the wheel 12 is actuated by the alarm setting gear.
  • the wheel 12 is therefore stationary as long as the user does not proceed with a setting of the alarm to the desired time.
  • An electric circuit fed by the battery 16 extends through the contaet-pieces 6, the arm 3, the shaft or rod 1, the casing of the alarm clock which grounds the circuit and back through a manually controlled switch 18 and an alarm system 17; said circuit is energized upon engagement of the arm 3 with a contact-piece 6.
  • the operati n of the alarm system is as follows:
  • the pin 11 drops into the notch 14 and the wheel 10 sinks toward the wheel 12.
  • the control rod follows the wheel 10 and is shifted axially so as to bring the arm 2 into contact with the surface of the cam 4 while the arm 3 sinks onto the insulating plate carrying the contact-pieces 6.
  • the clockwise rotation of the cam 4 sets after a very short time the outer end of the arm 2 inside the inner end or" one of the cam grooves 7.
  • the arm 2 is then guided along the grooves 7 and constrains the control rod 1 to turn anticlockwise, the arm 2 moving outwardly of the cam 4.
  • the end of the arm 3 which is thus angularly shifted, enters in succession in contact with the dil erent contact-pieces and with the intermediate insulating areas.
  • the electric circuit is closed and the battery feeds the alarm system.
  • a knob on the outside of the casing is caused to turn, so as to drive through a gearin which is not illustrated the wheel 12 in a direction such that the pin 11 moves away from the transverse rear surface of the notch 14.
  • the sloping surface to the front of the notch 14 urges the pin 11 on the wheel 10 together with the control rod upwardly and the ringing is brought to an end since the arms 2 and 3 are urged away from the cooperating surfaces on th earn and on the plate 5.
  • the spring 9 returns said arms as described into the position illustrated in FIG. 2 so that the mechanism enters its inoperative position.
  • the hand-operate switch 18 allows cutting out for long periods the operation of the alarm, whereas pushing of the rod 1), of which one end which is not illustrated, projects outside the casing, allows a cut ng of the alarm bell ringing through a speedy rotation the control rod and of the arms 2 and 3 during the operative period of the alarm as provid d through impact of the arm I? on a further radial aas rigid with the control rod 1.
  • My invention is by no limited to the embodiments described and it covers all other embodiments falling within the scope of the accompanying claims; in particular it is possible to adjust the number of ringing periods, their duration and the duration of the silences between said periods.
  • the alarm system may be constituted by an acoustic generator such as a bell or a buzzer, but it may also be constituted by a generator of luminous rays, such as an intermittent li ht or else a combinatoon of these diiierent arrangements.
  • Such an alarm system may be positioned inside the casing of the alarm clock, in which case a plurality of alarm systems may be associated with a single clock.
  • My improved intermittently ringing alarm clock shows the advantage of repeating several times its signal and of stopping automatically said repeated signals after'a predetermined period. This stopping cuts out the risk or" protracting the ringing until the battery is exhausted.
  • My improved alarm mechanism is of a sturdy and simple struc ture as concerns both the mechanical parts and the electric components, which ensure reliable operation with a cost price reduced to a minimum.
  • an alarm clock, t is combination of a motion work, a timing mechanism adapted to be driven by the latter, a control rod adapted to rock round its axis, an arm radially rigid with said rod, a cam driven by the timing mechanism and adapted to vangularly shift the control rod between two angular positions, a series of contact-pieces over which said arm is adapted to sweep in succession upon angular shifting of the rod between said positions, an alarm sy ern, an electric alarm circuit feeding said alarm system in parallel over said contact-pieces, an alarm time-setting mechanism and means whereby the clockwork operatively interengagcs the cam with the control rod to anguiarly shift the rod between said positions and thereby make the arm sweep over said contact-pieces and produce at the time defined by the alarm time-setting mechanism, a succession of signals th number of which is equal to that of the contact-pieces.
  • control rod adapted to rock round its axis, an arm radially rigid with said rod, a cam driven by the timing 1 echanism, a second arm radially rigid with the control rod and adapted to be controlled by the cam to angularly shift the control rod between two angular positions, a
  • an alarm clock the combination of a motion work, a timing mechanism adapted to be driven by the latter, a control rod adapted to rock round itis axis, an arm radially rigid with said rod, a cam driven by the t ming mechanism and adapted to angularly shift the control rod between two an ular positions, a series of contactpieces over which said arm is adapted to sweep in succession upon angular shifting of the rod between said positions, an acoustic alarm system, an electric alarm circuit feeding.
  • an alarm time-setting mechanism and means whereby th clockwork operatively interengages the cam with the control rod to angularly shift the rod between said positions and thereby make the arm sweep over said contactces and produce at the time define by the alarm time-setting mechanism, a succession of sig nals the number of which is equal to that of the contactpieces.
  • an alarm clock the combination of a motion work, a timing mechanism adapted to bedriven by the latter, a control rod adapted to rock round its axis, an arm radially rigid with said rod, a cam driven by the timing mechanism and adapted to angularly shift the control rod between two angular positions, a series of contact-pieces over which said arm is adapted to sweep in succession upon angular shifting of the rod between said positions, an optic alarm system, an electric alarm circuit feeding said alarm system in parallel over said contact-pieces, an alarm time-setting mechanism and means whereby the clockwork operatively interengages the cam with the control rod to angularly shift the rod between said positions and thereby make the arm sweep over said contact-pieces and produce at the time defined by the alarm time-setting mechanism, a succession of signals the number of which is equal to that of the contactpieces.
  • an alarm system an electric alarm circuit feeding said alarm system in parallel over said contact-pieces, a hand-operable switch adapted to switch otf the circuit thereby to render the alarm system inoperative, an alarm time-setting mechanism and means whereby the clockwork operatively interengages the cam with the control rod to angularly shift the rod between said positions and thereby make the arm sweep over said contact-pieces and produce at the time defined by the alarm time-setting mechanism, a succession of signals the number of which is equal to that of the contact-pieces.
  • an alarm clock the combination of a motion work, a timing mechanism adapted to be driven by the latter, a control rod adapted to rock round its axis, an arm radially rigid with said rod, a cam driven by the timing mechanism and adapted to angularly shift the control rod between two angular positions, four contactpieces over which said arm is adapted to sweep in succession upon angular shifting of the rod between said positions, an alarm system, an electric alarm circuit feeding said alarm system in parallel over said contact-pieces, an alarm time-setting mechanism and means whereby the clockwork operatively interengages the cam with the control rod to angularly shift the rod between said positions and thereby make the arm sweep over said contactpieces and produce at the time defined by the alarm timesetting mechanism, a succession of four signals.
  • an alarm clock the combination of a motion work, a timing mechanism adapted to be driven by the latter, an axially shiftable control rod adapted to rock round its axis, an arm radially rigid with said rod, a rotary cylindrical cam provided with a concave transverse surface in which a plurality of arcuate grooves are formed between its center and periphery, a second arm radially rigid with the control rod and including at its outer end a depending section adapted for a predetermined operative axial position of the rod, to be guided by a cooperating arcuate groove from the center to the periphery of the cam to thereby shift the control rod between two angular positions, a mentioned arm when in its operative axial position, is adapted to sweep in succession upon angular shifting of the rod between said poistions, an alarm system, an electric alarm circuit feeding said alarm system in parallel over said contact-pieces, an alarm time-setting mechanism, an axially shiftable wheel permanently controlled by the motion work and engaging through its transverse surface one end of

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromechanical Clocks (AREA)
US320729A 1962-11-02 1963-11-01 Electric alarm clock Expired - Lifetime US3166887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1288362A CH414476A (fr) 1962-11-02 1962-11-02 Réveil à dispositif d'alarme électrique

Publications (1)

Publication Number Publication Date
US3166887A true US3166887A (en) 1965-01-26

Family

ID=4387275

Family Applications (1)

Application Number Title Priority Date Filing Date
US320729A Expired - Lifetime US3166887A (en) 1962-11-02 1963-11-01 Electric alarm clock

Country Status (4)

Country Link
US (1) US3166887A (en:Method)
CH (2) CH414476A (en:Method)
ES (1) ES293157A1 (en:Method)
GB (1) GB1027767A (en:Method)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524314A (en) * 1968-07-01 1970-08-18 Sunbeam Corp Intermittent alarm mechanism
US3541776A (en) * 1967-07-19 1970-11-24 Junghans Gmbh Geb Electric mechanism for sounding the alarm of a clock at a preset time
US3851458A (en) * 1972-10-02 1974-12-03 Schwab L Sa Electrical alarm device for an alarm clock

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541776A (en) * 1967-07-19 1970-11-24 Junghans Gmbh Geb Electric mechanism for sounding the alarm of a clock at a preset time
US3524314A (en) * 1968-07-01 1970-08-18 Sunbeam Corp Intermittent alarm mechanism
US3851458A (en) * 1972-10-02 1974-12-03 Schwab L Sa Electrical alarm device for an alarm clock

Also Published As

Publication number Publication date
CH451026A (fr) 1968-05-15
GB1027767A (en) 1966-04-27
CH1486063A4 (en:Method) 1967-10-14
ES293157A1 (es) 1964-04-16
CH1288362A4 (en:Method) 1966-02-15
CH414476A (fr) 1966-12-30

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