US3777582A - Time switches - Google Patents

Time switches Download PDF

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Publication number
US3777582A
US3777582A US00249852A US3777582DA US3777582A US 3777582 A US3777582 A US 3777582A US 00249852 A US00249852 A US 00249852A US 3777582D A US3777582D A US 3777582DA US 3777582 A US3777582 A US 3777582A
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US
United States
Prior art keywords
setting
pinion
driven
gear wheel
shaft
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
US00249852A
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English (en)
Inventor
P Durdin
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.)
Paragon Electric Co Inc
Original Assignee
AMF Inc
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 AMF Inc filed Critical AMF Inc
Application granted granted Critical
Publication of US3777582A publication Critical patent/US3777582A/en
Assigned to STATE OF WISCONSIN INVESTMENT BOARD reassignment STATE OF WISCONSIN INVESTMENT BOARD SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PARAGON ELECTRIC COMPANY, INC. (FORMERLY KNOWN AS PECO-TOW RIVERS, INC.)
Assigned to PARAGON ELECTRIC COMPANY, INC. reassignment PARAGON ELECTRIC COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMF INCORPORATED
Assigned to PARAGON ELECTRIC COMPANY, INC. reassignment PARAGON ELECTRIC COMPANY, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: STATE OF WISCONSIN INVESTMENT BOARD
Anticipated expiration legal-status Critical
Assigned to BANKERS TRUST COMPANY reassignment BANKERS TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PARAGON ELECTRIC COMPANY, INC. A CORP. OF WISCONSIN
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
    • G04C23/26—Mechanisms continuously running to relate the operation(s) to the time of day for operating a number of devices at different times
    • 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
    • G04C23/10—Constructional details for actuating any element which operates, or initiates the operation of, the device concerned
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1503—Rotary to intermittent unidirectional motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19112—Aligned

Definitions

  • ABSTRACT A time switch having at least one electrical switch, on and off actuators for each switch, a driven differential mechanism moving the actuators along a circular path for timed switch operation, manual means for setting the differential mechanism to an instantaneous time of day and having continuously changing time indicating means, and a plurality of manual means each for positioning a different actuator for switch operation at a predetermined time of day and having means to indicate the time of day such actuator will operate the switch.
  • a time switch prefferably to be provided with a dial on which is fitted a tappet or tappets which engage with an associated switching mechanism once during each revolution of the dial.
  • the time switch With time switches intended to repeat daily a given cycle of operations, the time switch must be provided with a calibrated dial to accomodate the 24 hours of a day and which rotates one revolution in 24 hours. With such an arrangement the tappet or tappets are fitted to the dial and must be set at a position or positions on the dial according to the desired cycle of operations. The dial is then set to the actual time of day which is often determined by a pointer to which the actual time of day on the dial is set. With such an arrangement, since the dial is continuously rotating, the presentation of the dial when viewed at any time during a day is con tinuously varying and consequently sometimes causes confusion atthe time of setting the time switch and also sometimes on viewing the time switch.
  • I provide a setting arrangement for a time switch comprising a differential mechanism including a driven gear wheel, a setting gear wheel coaxial with said driven gear wheel, and a pinion in mesh with both the drivenand setting gear wheels, said pinion being rotatable on a shaft which is free to move about the axis of the wheels along a circular path in a plane between the driven and setting gear wheels, said shaft serving to actuate, directly or indirectly, switch mechanism.
  • the pinion will be made to rotate and the pinion shaft will be forced to move along its circular path, i.e., circumferentially at half the speed of the driven wheel.
  • the pinion shaft is arranged to engage with a switching mechanism once in every revolution, it will be seen that if the driven wheel rotates at a speed of one revolution every 12 hours, the pinion shaft will rotate along its circular path one revolution every twenty four hours and would thus give a daily operation.
  • the pinion shaft will be made to either advance or retard its position along to circular path with respect to the driven wheel and will be caused to engage with the switching mecha nism at a different time according to the position of the setting wheel.
  • FIG. 1 shows in exploded view an arrangement for operating a set of switch contacts of a time switch, the drive shaft of which is rotated at one revolution per 12 hours,
  • FIG. 2 shows a device for indicating A.M. or PM. used in conjunction with the time of day dial
  • FIG. 3 shows an arrangement comprising four units each operating a set of switch contacts and each being driven by a common shaft which rotates at one revolution per day.
  • the setting arrangement shown in FIG. 1 comprises a hexagonal shaft driven by a synchronous motor (not shown) the output shaft of which rotates at one revolution per 12 hours.
  • the shaft 10 carries a time-ofday dial ll formed with finger serrations 12 on its periphery and having indicia l3 representing 1 to 12 hours, said dial 1 1 being keyed to said shaft 10.
  • a spacing collar 14 fits freely over the shaft 10.
  • setting wheel 15 freely rotatable on the shaft 10, which wheel also has finger serrations 16 and indicia 17 representing 1 to 12 hours on its periphery.
  • a contrate gear 18 Formed integrally with the setting wheel 15 is a strictlye gear 18 which together with a pinion 19 forms a differential gearing.
  • the pinion 19 is free to rotate on a shaft 21 which moves through a circular path in a plane between the setting wheel 15 and the driven gear 20.
  • the pinion shaft 21 extends radially from a cam actuator 22 whichis freely rotatable on the shaft 10.
  • the cam actuator is provided, in this example, with one projection 23 for cooperation with a switching cam 24 rotatably mounted on a fixed shaft 46.
  • a contrate gear 25 driven by the shaft 10 is formed integrally with the gear and forms a double contrate gear 26.
  • the gear is in mesh with a further pinion 27 also engaging a still further contrate gear 28 formed integrally with a further setting wheel 29 carrying finger serrations and indicia.
  • the pinion 27 is freely mounted on a shaft 30 extending radially from a further cam actuator 31, the shaft being movable in a circular path in a plane between the driven gear wheel 25 and the setting wheel 29.
  • the actuator 31 has one projection 32 which cooperate with the switching cam 33.
  • the shaft 10 which is rotated at 1 revolution/12 hours, drives the gear wheel 20 which rotates the pinion 19 about its shaft 21. Since the contrate gear 18 on the setting wheel 15 is set in a stationary position the pinion will roll round the contrate gear 18 and accordingly will drive the shaft 21 around its circular path in the same direction as the direction of rotation of the contrate gear 20.
  • the actuator 22 will therefore rotate at half the speed of the driven wheel 20, Le. at 1 rev/24 hrs., and the projection 23 will engage one tooth of the cam 24 on each revolution of the actuator.
  • the cam 33 is similarly actuated once every 24 hours by the actuator 31 driven via the differential gearing formed by the pinion 27 the settable contrate gear 28 and the driven contrate gear 25.
  • Adjustment of the setting wheel 29 similarly causes the actuator 31 to advance or retard in relation to the driven wheel 26 and the dial.
  • an A.M. and P.M. indicator which comprises a cylinder 40 carrying the indicia of A.M. and P.M.
  • the cylinder is mounted on a shaft 41 connected to a cam disc 42 (Geneva motion) having four cut outs 43 engageable in turn by a pin 44 extending from the side of the time-of-day dial 1 1.
  • the dial 1 1 rotates twice in a day and on each revolution the pin rotates the cam disc 42 one quarter so that the letters A.M. and P.M. which are repeated are alternatively viewed.
  • the same arrangement is also fitted to the setting wheels 15, 19 in order to indicate the settings at A.M. or RM.
  • the arrangement shown in FIG. 3 comprises four differential units, each substantially similar to the arrangement of FIG. 1 except that the main shaft is driven by a clock or synchronous motor at l rev/24 hours.
  • each differential unit comprises a pair of setting gear wheels 50, 51 freely mounted on a drive shaft 52. Between the gear wheels 50, 51 is mounted a double contrate wheel 53 fixed to the shaft 52.
  • Two cam actuators 54,55 are freely mounted on the shaft one on each side of the wheel 53 and actuate respectively two switch earns 56, 57.
  • the actuators each have shafts 48 extending radial of the axis of the wheels carrying pinions 49 meshing with the setting and driven wheels.
  • the actuators each have two diametrically opposed projections 58, 59 and 60, 61. Each projection of one pair can engage alternately the respective switch cam.
  • the projections are provided with slots 62 to prevent jamming with the switch cam.
  • the wheel 53 rotates once every day and since the actuators rotate at half the speed of the wheel but have two projections the switch cam is partially rotated to effect switching once per day.
  • Each pair of switching cams 56, 57 actuates respectively noses 70,71 extending from the ends of contacts 72,73 of switches 74,75,76 and 77.
  • Each switch has a third contact 78 engageable by the centre contact.
  • the nose 70 is supported by one spur of cam 56 while the nose 71 is free.
  • the projection 59 engages another spur on the cam 56 the nose 70 drops thus breaking the contact between contacts 72 and 73.
  • the cam 57 rotates a spur on cam 57 comes into a position to support the nose 71 so that contacts 73 and 78 make.
  • the projection 61 engages a spur of cam 57.
  • the spurs are pointed as shown in order to achieve a rapid break to minimise arcing.
  • the wheels and pinions of the differential system may be bevelled.
  • the setting gear wheels may be provided with detents or other friction means (not shown) for securing the wheels in their set positions.
  • the input drive to the mechanism may be made through the shaft 52 at one end thereof or preferably through a spur gear formed as an integral moulding with the double contrate gear 53 as shown in FIG. 3. lt will be noted from the drawing that the setting wheels are provided on both sides with contrate gears formed as an integral moulding with the disc and finger serrations in order to avoid the necessity of producing left and right hand setting wheels.
  • a setting arrangement for a time switch comprising:
  • a differential mechanism including a driven gear wheel driven by said shaft,
  • said pinion being rotatable about a pinion axis which is free to move about the axis of the wheels along a circular path in a plane between the driven and setting gear wheels, and
  • actuator means movable with said pinion axis for operating said time switch.
  • a setting arrangement for a time switch comprising:
  • said pinion being rotatable on a pinion shaft which is free to move about the axis of the two gear wheels along a circular path in a plane between the two gear wheels,
  • actuator means movable with said pinion shaft for causing actuation of switch means
  • said pinion shaft and actuator means being freely rotatable on said driving shaft.
  • a setting mechanism as claimed in claim 4 wherein the actuator is provided with two diametrically opposed projections, each of which engages the switch cam once in every two revolutions.
  • a further setting gear wheel is provided which is in mesh with a further pinion meshing also with a fur- 5 wherein a plurality of units comprising the two setting ther driven gear wh e e1 gear wheels, the double contrate wheel between them
  • a Setting mechanism as claimed in claim 10 and the two pinions are provided, the double contrate wherein said further driven gear wheel is integral with g Wheels being driven y 8 C m o S ftsaid first driven gear wheel so as to form a double con- Disclaimer 8,7 7 7 ,582.-Pete1' Robert Durdz'n, New Malden, England. TIME SWITCHES. Patent dated Dec. 11, 1973. Disclaimer filed Nov. 25, 1974, by the assignee, AM F Incorporated.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
US00249852A 1971-05-04 1972-05-03 Time switches Expired - Lifetime US3777582A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1306471 1971-05-04

Publications (1)

Publication Number Publication Date
US3777582A true US3777582A (en) 1973-12-11

Family

ID=10016137

Family Applications (1)

Application Number Title Priority Date Filing Date
US00249852A Expired - Lifetime US3777582A (en) 1971-05-04 1972-05-03 Time switches

Country Status (8)

Country Link
US (1) US3777582A (xx)
AU (1) AU4178072A (xx)
CA (1) CA966178A (xx)
DE (1) DE2221847A1 (xx)
FR (1) FR2135273B1 (xx)
GB (1) GB1339666A (xx)
IT (1) IT957692B (xx)
NL (1) NL7205799A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060221773A1 (en) * 2003-01-07 2006-10-05 Eta Sa Manufacture Horlogere Suisse Calendar Mechanism For Displaying The Date And The Day Of The Week In One Timepiece

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB676973A (en) * 1949-04-11 1952-08-06 Mini Of Supply Improvements in or relating to gear couplings
US2908188A (en) * 1954-05-28 1959-10-13 Leon A Maybarduk Mechanical integrator
US3079812A (en) * 1958-10-10 1963-03-05 Liebel Flarsheim Timer
CH375774A (de) * 1959-01-28 1964-03-15 Theodor Kiepe Fa Vorrichtung zur Betätigung eines elektrischen Schalt- oder Steuergerätes
US3138674A (en) * 1962-03-29 1964-06-23 Gen Electric Electrical time switch mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH501261A (it) * 1965-01-13 1970-12-31 Italora Spa Dispositivo automatico per il comando di un segnalatore acustico per sveglia, atto a dare un consenso di durata prestabilita, ripetentesi ciclicamente con frequenza di 24 ore nonostante un'eventuale interruzione di tale consenso da parte di un altro organo esterno
FR1525666A (fr) * 1967-06-05 1968-05-17 Asea Ab Relais temporisé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB676973A (en) * 1949-04-11 1952-08-06 Mini Of Supply Improvements in or relating to gear couplings
US2908188A (en) * 1954-05-28 1959-10-13 Leon A Maybarduk Mechanical integrator
US3079812A (en) * 1958-10-10 1963-03-05 Liebel Flarsheim Timer
CH375774A (de) * 1959-01-28 1964-03-15 Theodor Kiepe Fa Vorrichtung zur Betätigung eines elektrischen Schalt- oder Steuergerätes
US3138674A (en) * 1962-03-29 1964-06-23 Gen Electric Electrical time switch mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060221773A1 (en) * 2003-01-07 2006-10-05 Eta Sa Manufacture Horlogere Suisse Calendar Mechanism For Displaying The Date And The Day Of The Week In One Timepiece
US7433271B2 (en) * 2003-01-07 2008-10-07 Eta Sa Manufacture Horlogère Suisse Calendar mechanism for displaying the date and the day of the week in one timepiece
US20090003139A1 (en) * 2003-01-07 2009-01-01 Eta Sa Manufacture Horlogere Suisse Calendar mechanism for displaying the date and the day of the week in one timepiece
US7522476B2 (en) * 2003-01-07 2009-04-21 Eta Sa Manufacture Horlogère Suisse Calendar mechanism for displaying the date and the day of the week in one timepiece

Also Published As

Publication number Publication date
IT957692B (it) 1973-10-20
FR2135273B1 (xx) 1976-08-06
CA966178A (en) 1975-04-15
DE2221847A1 (de) 1972-11-16
NL7205799A (xx) 1972-11-07
FR2135273A1 (xx) 1972-12-15
GB1339666A (en) 1973-12-05
AU4178072A (en) 1973-11-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: STATE OF WISCONSIN INVESTMENT BOARD, WISCONSIN

Free format text: SECURITY INTEREST;ASSIGNOR:PARAGON ELECTRIC COMPANY, INC. (FORMERLY KNOWN AS PECO-TOW RIVERS, INC.);REEL/FRAME:004546/0955

Effective date: 19860319

Owner name: STATE OF WISCONSIN INVESTMENT BOARD, 121 EAST WILS

Free format text: SECURITY INTEREST;ASSIGNOR:PARAGON ELECTRIC COMPANY, INC. (FORMERLY KNOWN AS PECO-TOW RIVERS, INC.);REEL/FRAME:004546/0955

Effective date: 19860319

STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

AS Assignment

Owner name: PARAGON ELECTRIC COMPANY, INC., WISCONSIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMF INCORPORATED;REEL/FRAME:004652/0930

Effective date: 19861201

Owner name: PARAGON ELECTRIC COMPANY, INC., 606 PARKWAY BOULEV

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMF INCORPORATED;REEL/FRAME:004652/0930

Effective date: 19861201

AS Assignment

Owner name: PARAGON ELECTRIC COMPANY, INC., WISCONSIN

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:STATE OF WISCONSIN INVESTMENT BOARD;REEL/FRAME:005463/0773

Effective date: 19900730

AS Assignment

Owner name: BANKERS TRUST COMPANY, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNOR:PARAGON ELECTRIC COMPANY, INC. A CORP. OF WISCONSIN;REEL/FRAME:005758/0169

Effective date: 19900730