GB1454787A - Digital clock - Google Patents

Digital clock

Info

Publication number
GB1454787A
GB1454787A GB4948473A GB4948473A GB1454787A GB 1454787 A GB1454787 A GB 1454787A GB 4948473 A GB4948473 A GB 4948473A GB 4948473 A GB4948473 A GB 4948473A GB 1454787 A GB1454787 A GB 1454787A
Authority
GB
United Kingdom
Prior art keywords
drum
pinion
drums
alarm
setting
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
GB4948473A
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.)
Mansei Kogyo KK
Original Assignee
Mansei Kogyo KK
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
Priority claimed from JP1972129308U external-priority patent/JPS4985169U/ja
Priority claimed from JP13371072U external-priority patent/JPS5253488Y2/ja
Application filed by Mansei Kogyo KK filed Critical Mansei Kogyo KK
Publication of GB1454787A publication Critical patent/GB1454787A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/04—Alloys based on tungsten or molybdenum
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/21—Drums
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/257—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator drum-shaped or three-dimensional shaped
    • G04B19/2573—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • 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
    • 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
    • G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)

Abstract

1454787 Digital alarm clocks MANSEI KOGYO KK 24 Oct 1973 [9 Nov 1972 20 Nov 1972] 49484/73 Heading G3T [Also in Divisions G4 and H 1] In a digital clock comprising a frame 20 with a main shaft 10 on which time indicating drums 11- 15 are rotatably supported, each drum intermittently driving the adjacent higher order drum by means of a respective one of pinions 21-26 which are rotatably mounted on the frame within the drums, each pinion (taking pinion 23 as an example) has a first part 23a meshing continuously with inner teeth 37 of the adjacent higher order drum 13 and a second part 23b which is mutilated and is locked by a circumferential surface 33 of the adjacent lower order drum 12 except when a tooth of the part 23b enters a notch 411 which interrupts the locking surface 33. The pinion is thereupon rotated by one tooth pitch of the part 23b, advancing the drum 13 by the corresponding number (three) tooth pitches of the part 23a. As shown the pinions are mounted on shafts, e.g. 43, on plates 16-19 fixed between adjacent drums. The drums 11-14 indicate seconds, units and tens of minutes, and hours respectively, and the drum 15 carries day and a.m./p.m. indications Fig. 4 (not shown). The seconds drum 11 has inner teeth 31 driven by pinion 29 of an electric motor 27. To permit setting of the drums 12-14, the pinion between the drums 11, 12 is made in two parts 21, 22 which are detentably coupled to permit slip. Three forms of detent construction are described Figs. 5-8 (not shown). Arbor 53 of the drum 12 is extended and carries a setting knob (54, Fig. 4). A similar construction of pinion 25, 26 permits the day drum 15 alone to be turned, reverse rotation of this drum being prevented by a pawl 56 co-operating with projections 55 on the drum. The drums may be of transparent or translucent plastics with a neon lamp inside. The clock has a switch operating mechanism (see Division H1) e.g. to sound an alarm, and comprising a time setting drum (98), Figs. 10, 11 (not shown) located beyond the drum 15 and fixed on the shaft 10, the other end of the shaft carrying an alarm setting knob (116). An alarm cam drum (102) is located within the setting drum (98) and driven, via a reducing gear (107), by a pinion (105) on the shaft 110 of the ten minute drum 13. At the preset time, the cam drum (102) moves axially under the force of a central compression spring (104) to close a micro-switch (111).
GB4948473A 1972-11-09 1973-10-24 Digital clock Expired GB1454787A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1972129308U JPS4985169U (en) 1972-11-09 1972-11-09
JP13371072U JPS5253488Y2 (en) 1972-11-20 1972-11-20

Publications (1)

Publication Number Publication Date
GB1454787A true GB1454787A (en) 1976-11-03

Family

ID=26464742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4948473A Expired GB1454787A (en) 1972-11-09 1973-10-24 Digital clock

Country Status (4)

Country Link
DE (1) DE2355877B2 (en)
FR (1) FR2206537A1 (en)
GB (1) GB1454787A (en)
IT (1) IT996407B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3627239B1 (en) * 2016-07-05 2024-04-17 Montres Breguet S.A. Roller display mechanism for a watch

Also Published As

Publication number Publication date
IT996407B (en) 1975-12-10
DE2355877B2 (en) 1975-09-04
FR2206537A1 (en) 1974-06-07
DE2355877A1 (en) 1974-05-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee