GB1097170A - A timer having an adjustable timing cycle - Google Patents

A timer having an adjustable timing cycle

Info

Publication number
GB1097170A
GB1097170A GB42024/66A GB4202466A GB1097170A GB 1097170 A GB1097170 A GB 1097170A GB 42024/66 A GB42024/66 A GB 42024/66A GB 4202466 A GB4202466 A GB 4202466A GB 1097170 A GB1097170 A GB 1097170A
Authority
GB
United Kingdom
Prior art keywords
gear
wheel
cam
ratchet
service cycle
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
GB42024/66A
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.)
MALLORY TIMERS Ltd
Original Assignee
MALLORY TIMERS Ltd
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 MALLORY TIMERS Ltd filed Critical MALLORY TIMERS Ltd
Publication of GB1097170A publication Critical patent/GB1097170A/en
Expired legal-status Critical Current

Links

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
    • 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
    • G04C21/38—Adjusting the duration of signals
    • 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
    • G04C23/34—Mechanisms continuously running to relate the operation(s) to the time of day with provision for automatic modification of the programme, e.g. on Sunday

Landscapes

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

Abstract

1,097,170. Time switches. MALLORY TIMERS Ltd. Sept. 20, 1966 [Sept. 20, 1965], No. 42024/66. Heading H2B. A timer having an adjustable timing cycle and a fixed service cycle includes a driving shaft, a gear-wheel 33 mounted on the driving shaft, a driving mechanism 29, 30, 35, 37, 36 driven by a pinion gear 32 also mounted on the driving shaft, and a segment gear 43 rotatable by the driving mechanism into engagement with the gear-wheel 33 after an adjustably predetermined number of revolutions of the driving shaft so as to be driven by gear-wheel 33 to rotate an output shaft 44 and cams 24, 25, 26 thereon through the fixed service cycle, gear 43 having a toothless portion of sufficient extent to disengage the segment gear 43 from the gear-wheel 33 at the end of the service cycle. The driving mechanism comprises a gear 29 and a cam 30 mounted thereon imparting motion to a cam follower 35 and drive arm 36 biased towards the cam 30 by a spring 37. End 38 of arm 36 rotates a ratchet 39 by a tooth for each revolution of cam 30, a back-up pawl 40 being provided for ratchet 39, until a post 50 on ratchet 39 engages a starter spring 45 which rotates gear 43 by a post 49 thereon until it engages and is driven by gear-wheel 33 (see also Figs. 3-5, not shown). Cams 24, 25, 26, driven by shaft 44 of gear 43 operate switches (20), (Fig. 1, not shown). At the end of the service cycle a post (55) underneath gear 43 engages a pivoted lever 19, which disengages arm 36 and pawl 40 from ratchet 39 which then returns to a position defined by a tong 54 on an adjusting plate 22 under the restoring force of a spring (53), (Figs. 3-5, not shown). Lever 19 is alternatively operated manually by a portion projecting through the escutcheon plate (11). Rotation of a knob 14 moves plate 22 to set the position of ratchet 39, and can also manually cause starter spring 45 to rotate gear 43 into engagement with gear-wheel 33. Knob (15) sets the hour of day at which the service cycle is to begin; the knob rotating with cam 30 and a slipping clutch allowing relative rotation of gear 29 and cam 30.
GB42024/66A 1965-09-20 1966-09-20 A timer having an adjustable timing cycle Expired GB1097170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US488488A US3327074A (en) 1965-09-20 1965-09-20 Timer having an adjustable timing cycle

Publications (1)

Publication Number Publication Date
GB1097170A true GB1097170A (en) 1967-12-29

Family

ID=23939865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42024/66A Expired GB1097170A (en) 1965-09-20 1966-09-20 A timer having an adjustable timing cycle

Country Status (2)

Country Link
US (1) US3327074A (en)
GB (1) GB1097170A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349199A (en) * 1966-02-14 1967-10-24 Mallory & Co Inc P R Timer having an adjustable time interval
US4123915A (en) * 1977-05-16 1978-11-07 Amf Incorporated Defrost timer having selectable defrost time

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981808A (en) * 1958-07-08 1961-04-25 Gen Electric Interval timer
US3188409A (en) * 1963-03-22 1965-06-08 Mallory & Co Inc P R Motor drive, cam actuated electrical multi-switch with ratchet escapement
US3239614A (en) * 1963-10-30 1966-03-08 Mallory & Co Inc P R Second sub-interval circuit means for escapement devices

Also Published As

Publication number Publication date
US3327074A (en) 1967-06-20

Similar Documents

Publication Publication Date Title
US4467664A (en) Timer drive mechanism
US3040227A (en) Timing devices
GB1097170A (en) A timer having an adjustable timing cycle
US3520126A (en) Striker movement for electrically driven clock
US2778418A (en) Preset timer
GB1341147A (en) Clock mechanism
US2891405A (en) Intermittent drive mechanism
US2913048A (en) Timer
GB1083800A (en) Time sequence switch
GB1329169A (en) Digital alarm clock
GB1235639A (en) Intermittent-advance mechanism
US3248493A (en) Latch operated timer switch
US3012444A (en) Timing device
US3991289A (en) Automatic timer
GB1216279A (en) Timer
US3055222A (en) Timer for photocopy machine
US3213695A (en) Interval timer and drive mechanism therefor
US3200655A (en) Snap action incremental actuator
US2038965A (en) Striking clock
US3207933A (en) Interval timer
GB1076291A (en) Improvements in interval timer
US3792614A (en) Programmer gear device with slidable actuator bar
US1528789A (en) Automatic clock
US3368415A (en) Drive mechanism for a timer
GB636678A (en) Improvements in or relating to mechanism for converting uniform rotary motion into intermittent rotary motion