US3323303A - Clockwork mechanism for short interval alarm timer - Google Patents

Clockwork mechanism for short interval alarm timer Download PDF

Info

Publication number
US3323303A
US3323303A US486374A US48637465A US3323303A US 3323303 A US3323303 A US 3323303A US 486374 A US486374 A US 486374A US 48637465 A US48637465 A US 48637465A US 3323303 A US3323303 A US 3323303A
Authority
US
United States
Prior art keywords
wheel
arbor
timer
lever
clutch
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
US486374A
Other languages
English (en)
Inventor
Rene P Jaccard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3323303A publication Critical patent/US3323303A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G04F3/02—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 mechanical driving mechanisms
    • G04F3/022—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 mechanical driving mechanisms using mechanical signalling device

Definitions

  • This invention relates to clockwork mechanisms. More particularly, this invention relates to clockwork mechanisms particularly adapted to be set to indicate the passage of a predetermined interval of time, such as by sounding an alarm signal.
  • time measuring devices i.e., timers
  • timers time measuring devices
  • They are used primarily in kitchens and laboratories.
  • clockwork movements of simplified design though they are provided with a driving member, a gear train, an escapement, an oscillator and an alarm device, all of which operate only during the interval of time to be checked.
  • the motor device is a coil spring and the oscillator is a balance which does not have any spiral.
  • a clockwork mechanism comprising a timer wheel and a time wheel, said timer wheel being rotatably mounted on a movable pivot and said time wheel being rotatably mounted on a stationary pjvot, means to move the timer wheel into engagement with the time wheel by moving said movable pivot toward said stationary pivot, setting means mounted to be hand movable into engagement with said timer wheel when said timer wheel is in engagement with said time wheel, and responding means mounted to rotate with said timer wheel and adapted to respond to the return of the timer wheel to an unset position by mechanically acting in a predetermined manner actuated by said return.
  • the means to move the timer wheel into engagement with the time wheel comprises clutch-lever means articulated at the center of the clockwork, said hand operable setting means is mounted on said clutch-lever means, said clutch-lever means defines an inclined plane at one of its edges and an edge of said clutch-lever means contiguous with said inclined plane is concentric with respect to the center of the clockwork, and there are provided a second lever, an arbor mounted on the second lever at a point remote from the pivot of the second lever, said timer wheel being mounted on said arbor, said clutch-lever means being mounted with said inclined plane juxtaposed to said arborso that upon rotation of said clutch-lever first said inclined plane engages said arbor and then said concave edge engages said arbor whereby said arbor is moved toward said time wheel and carries the timer wheel into
  • the means to move'said pinion into engagement wtih said teeth includes a plate mounted to rotate with said pinion and a member mounted on said clutch-lever to
  • the alarm further includes a hammer and said clockwork mechanism further includes a mechanism operable to block operation of the hammer.
  • the mechanism operable to block operation of the hammer includes an arbor and two arms mounted to rotate together on said arbor and said responding means is a circular cam having a notch defined in its edge, said arms and said cam being positioned so that the free end of one of the arms abuts against the edge of the cam and when the portion of the cam edge thus abutted against is ci-rcular the free end of the other arm abuts against the hammer thereby blocking operation of the hammer and when the portion of the cam edge thus abutted against is notched said free end of said other arm is spaced from the hammer thereby allowing the hammer to operate.
  • this invention relates to a clockwork mechanism characterized by two wheels, the first of which is tightly fitted onto a runner of the gear train and therefore may be termed a time wheel and the second, a time'measuring wheel or timer wheel which is normally held slightly away from the first wheel by a device by means of which, by putting the second wheel into mesh with the first, this second Wheel can be made to revolve through an angle corresponding to a predetermined time interval until it comes back to the zero point, at which time another device sets off an alarm.
  • the attached drawing shows, by way of example, one working form of this invention and one variant.
  • FIGURE 1 is a plan view broken away to show details of construction of the clockword mechanism
  • FIGURE 2 is a detail view of an arm mechanism shown in inoperative position
  • FIGURE 3 is the same as FIGURE 2 for the operative position of the mechanism
  • FIGURE 4 is a detail view of the parts of the alarm device in their operative position
  • FIGURE 5 is the same as FIGURE 4 for the inoperative position
  • FIGURE 6 is a section along VI-VI of FIGURE 3;
  • FIGURE 7 shows a section of the alternative embodiment.
  • the working embodiment shown which constitues an alarm clock, is composed of (see in particular FIGURES 1 and 6): a casing ring 1, a top plate 2, the movement barrel or mainspring 3, the alarm barrel 4. Also shown are the minute wheel-work formed by the minute wheel 5 and the minute pinion 6 which drives the hour wheel 7, the driving wheel 13 located beneath the hour Wheel, the timer wheel 15 and the cam 30.
  • This movement of customary type design, includes a gear train, an escapement, a spiral balance oscillator and an alarm mechanism which are not shown in the drawing.
  • the timing mechanism includes a dial 8 fastened'to the casing ring by a bridge 9, the right-hand side of which has been cut out in the drawing for the sake of clarity.
  • a hand moves above this dial and indicates after what interval of time the alarm mechanism of the timer will be set into play.
  • this mechanism is made up of a clutch-lever 10 articulated on the center of the movement,
  • a driving wheel 13 is tightly fitted onto the minute arbor 14.
  • a timer wheel 15, having the same number of teeth as the driving wheel 13, revolves on the arbor 16 which is integral with an arm 17 pivoted about an arbor 18. Tension on this arm is exerted by a spring 19 in order to keep it leaning against a steady-pin 20.
  • Driving wheel 13 may be referred to as a time Wheel since it is fixed on minute arbor 14.
  • the clutch-lever is made up of an inclined plane 21 and a wall 22 concentric with the minute arbor 14, located next to the arbor 16 of the timer wheel 15.
  • a hand-setting gear train is placed on the clutch-lever. It includes a pinion 23 firmly fastened to the winding stem 24, a bevel gear 25 and an intermediate wheel 26. A toothing 27 is cut into the outer edge of the clutchlever and comes into play with the alarm pinion 28.
  • the clutch-lever holds a slightly elastic pin 29.
  • FIGURE 4 represents the parts of an alarm device which includes a cam 30, solidly fastened to the timer wheel and superimposed upon it.
  • a notch 31 is made in the outer edge of this cam.
  • the blocking mechanism is formed by an arbor 32 pivoting, on the one hand, in the lower plate of the movement, and, on the other hand, in the movable plate 33 provided with a notch 34 on its outer edge.
  • Arm 35 bent at its end to come into contact with the cam 30, and arm 37, likewise bent to come into contact with the hammer 38, are interlocked with the arbor 32.
  • the hammer turns on an arbor 39 which is provided with an alarm escapement lever 40, the wheel 41 of which is interlocked with the arbor 42 on which the pinion 28 is cut in.
  • This alarm device functions as follows:
  • the clutch-lever In the resting state, the clutch-lever is in the position shown in FIGURE 2.
  • the timer wheel 15 and the intermediate wheel 26 are kept out of contact with the driving wheel 13, so that the alarm clock movement does not act upon the timer wheel, and is therefore not disturbed.
  • the blocking mechanism is in the position shown in FIGURE 5.
  • the end of arm 35 has fallen into the notch 31 in the cam, and the end of arm 37 is away from the hammer 38.
  • the teeth 27 of the clutch-lever are in gear with the alarm pinion 28.
  • the arm 35 of the blocking-mechanism rests against the edge of the cam 30, while its other arm 37 holds the hammer 38 still and thus impedes any rotation of the alarm wheel 41 and its pinion 28, and immobilizes the clutch-lever.
  • the driving wheel 13 makes the timer Wheel 15 turn and the cam 30 which is interlocked with it.
  • the extremity of arm 35 of the blocking mechanism drops into the notch 31 in the cam 30, resulting in the rotation of the arbor 32 and the retraction of arm 37 from the hammer 38.
  • the latter which has now been set free, begins to oscillate, driven by its lever40, the escapement wheel41, the pinion 28, and the teeth 27 of the clutch-lever due to the effect of the motor-spring 11.
  • the arbor 16 of the timer wheel 15 has slipped over onto the wall 22 and then onto the inclined plane 21, to resume its rest position, bringing the Wheel back into the position in which it is not in gear with the driving wheel 14.
  • FIGURE 7 makes it possible to set the alarm device to go off after a time interval of twelve hours at most.
  • two systems are arranged on the arbor 16 fastened to arm 17: the first, made up of the minute timer-wheel 15, the cam 30 provided with a notch 31, the minute-pinion 48; and the second, made up of the hour timer-wheel 49 and the hour cam 50, also having a notch 51.
  • An arbor set into the arm 17 freely holds a wheel 53 and a pinion 54 which transmits the movement of wheel 15 to wheel 49 in a ratio of 12 to 1.
  • the hour (55) and minute (56) hands show on the dial 8 the time interval after which the alarm is set to go off.
  • the arm 35 of the blocking mechanism presses simultaneously on the two cams, which both have the same diameter.
  • the device is set 011 only at the point when the two notches 31 and 51 of the two cams are placed one right above the other, the position for which the two hands on the dial are at zero.
  • the invention in question is not limited to the working form and alternate form described and shown in the drawing, but could likewise include a clockwork movement without any alarm mechanism, such as a' table or wall clock.
  • the hand-set button could be located on one of the faces of the case, instead of being on the side; in this case, the bevel gear of the hand-setting gear train would be replaced by a flat gear.
  • (D) hand-operable setting means mounted on said clutch lever and movable into engagement with said timer wheel when said timer wheel is in engagement with said time wheel;
  • a clockwork mechanism according to claim 1, wherein said clutch-lever has opposite said concave edge, a convex edge concentric with respect to the center of the clockwork and having teeth thereon; said alarm including an alarm wheel, a pinion movably mounted in juxtaposition to said convex edge and to rotate with said alarm wheel, and means to move said pinion into engagement with said teeth.
  • a clockwork mechanism according to claim 2, wherein said means to move said pinion into engagement with said teeth includes a plate having an edge mounted to rotate with said pinion and a member mounted on said clutch-lever to extend beyond the periphery of said convex edge and upon movement of said clutch-lever to abut against said edge of said plate and thereby move said plate whereby said plate carries said pinion into engagement with said teeth.
  • a clockwork mechanism according to claim 2, wherein said alarm further includes a hammer and said clockwork mechanism further includes a mechanism operable to block operation of the hammer.
  • a clockwork mechanism wherein said mechanism operable to block operation of the hammer comprises an arbor and two arms having free ends mounted to rotate together on said arbor and having responding means comprising a circular cam having an edge and a notch therein, said arms and said cam being positioned so that the free end of one of the arms abuts against the edge of the cam and when the portion of the cam edge thus abutted against is circular, the free end of the other arm abuts against the hammer thereby blocking operation of the hammer and when the portion of the cam edge thus abutted against is notched, said free end of said other arm is spaced from the hammer thereby allowing the hammer to operate.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US486374A 1964-09-17 1965-09-10 Clockwork mechanism for short interval alarm timer Expired - Lifetime US3323303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1210164A CH444056A (fr) 1964-09-17 1964-09-17 Pièce d'horlogerie à avertisseur

Publications (1)

Publication Number Publication Date
US3323303A true US3323303A (en) 1967-06-06

Family

ID=4379853

Family Applications (1)

Application Number Title Priority Date Filing Date
US486374A Expired - Lifetime US3323303A (en) 1964-09-17 1965-09-10 Clockwork mechanism for short interval alarm timer

Country Status (3)

Country Link
US (1) US3323303A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (2) CH1210164A4 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1548115A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386593A1 (fr) * 1989-03-07 1990-09-12 Conseilray S.A. Dispositif d'arrêt dans une position déterminée d'un organe mobile et pièce d'horlogerie à indicateur de comptage d'une durée finie
US20040090870A1 (en) * 2001-03-21 2004-05-13 Christian Schmiedchen Mechanism for actuating a striking work for a timepiece fitted with a timer
US20050007888A1 (en) * 2002-02-01 2005-01-13 Tag-Heuer Sa Device comprising a clock movement and a chronograph module
CN105911844A (zh) * 2015-02-23 2016-08-31 蒙特雷布勒盖股份有限公司 计时机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700605A1 (fr) * 2009-03-25 2010-09-30 Ball Watch Company S A Mouvement de montre a fonction alarme.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1145591A (en) * 1914-10-09 1915-07-06 Harry H King Indicator alarm device.
US2621467A (en) * 1949-10-13 1952-12-16 Japy Freres Sa Ets Warning clockwork instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1145591A (en) * 1914-10-09 1915-07-06 Harry H King Indicator alarm device.
US2621467A (en) * 1949-10-13 1952-12-16 Japy Freres Sa Ets Warning clockwork instrument

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386593A1 (fr) * 1989-03-07 1990-09-12 Conseilray S.A. Dispositif d'arrêt dans une position déterminée d'un organe mobile et pièce d'horlogerie à indicateur de comptage d'une durée finie
CH675518GA3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-03-07 1990-10-15
US20040090870A1 (en) * 2001-03-21 2004-05-13 Christian Schmiedchen Mechanism for actuating a striking work for a timepiece fitted with a timer
US7070320B2 (en) * 2001-03-21 2006-07-04 Glashütter Uhrenbetrieb GmbH Mechanism for triggering a striking work for a timepiece fitted with a timer
US20050007888A1 (en) * 2002-02-01 2005-01-13 Tag-Heuer Sa Device comprising a clock movement and a chronograph module
US7905655B2 (en) * 2002-02-01 2011-03-15 Lvmh Swiss Manufactures Sa Device comprising a clock movement and a chronograph module
US20110164474A1 (en) * 2002-02-01 2011-07-07 Lvmh Swiss Manufactures Sa Device comprising a clock movement and a chronograph module
US8113707B2 (en) 2002-02-01 2012-02-14 Lvmh Swiss Manufactures Sa Device comprising a clock movement and a chronograph module
US8182138B2 (en) 2002-02-01 2012-05-22 Lvmh Swiss Manufactures Sa Device comprising a clock movement and a chronograph module
US8308345B2 (en) 2002-02-01 2012-11-13 Lvmh Swiss Manufactures Sa Device comprising a clock movement and a chronograph module
CN105911844A (zh) * 2015-02-23 2016-08-31 蒙特雷布勒盖股份有限公司 计时机构
CN105911844B (zh) * 2015-02-23 2018-10-02 蒙特雷布勒盖股份有限公司 计时机构

Also Published As

Publication number Publication date
CH1210164A4 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-05-31
CH444056A (fr) 1967-05-31
DE1548115A1 (de) 1969-07-03

Similar Documents

Publication Publication Date Title
JP4312849B2 (ja) 腕時計
TW200422800A (en) Device comprising a clock movement and a chronograph module
RU2321039C2 (ru) Устройство аналоговой индикации для часов
US2456122A (en) Time zone watch
JPH02281181A (ja) 時計機構本体用アナログ式表示構成要素部分
US3696609A (en) Timepiece having oscillating rotation indicator
JP2009150890A (ja) アラーム制御機構
US3911667A (en) Instantaneous feed mechanism for a day-date timepiece
US5305291A (en) Alarm setting and actuating mechanism for analog timepiece
US7192181B2 (en) Timepiece including a mechanism for triggering a time-related function and simultaneous winding of a barrel spring
US3323303A (en) Clockwork mechanism for short interval alarm timer
US3543506A (en) Self-winding wristwatch with a chronograph mechanism
US2610683A (en) Interval timer
US2301942A (en) Timing mechanism
US2650467A (en) Calendar timepiece
US2461599A (en) Hour-increment hour hand setting mechanism
JP2023161561A (ja) 時計ムーブメントの機能を選択および制御するためのデバイス
US3691757A (en) Hand held timer-lap counter toy
US3712048A (en) Timepiece movement comprising a jumping type indicator
US2113274A (en) Alarm interval timer
US2720746A (en) Indicator mechanism
US3864904A (en) Watch with an adjustable time interval hand
US3276201A (en) Watch time zone indicator
US3645089A (en) Intermittent driving mechanism for timepiece
US3576100A (en) Date-watch