WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

G04C　ELECTROMECHANICAL CLOCKS OR WATCHES (mechanical parts of clocks or watches in general G04B; electronic time-pieces with no moving parts, electronic circuitry for producing timing pulses G04G)

G04C 1/00 Winding mechanical clocks electrically (winding mechanically G04B 3/00{electrical winding of spring driven arrangements for grammophones G11B 19/20})

G04C 1/003 ・{by electro-thermal or electro-pneumatic arrangements}

G04C 1/006 ・{for clocksystems (G04C 1/02 to G04C 1/04 take precedence)}

G04C 1/02 ・by electromagnets

G04C 1/022 ・・{with snap-acting armature}

G04C 1/024 ・・・{winding-up springs}

G04C 1/026 ・・{having unipolar rotating armature (two-pole or multi-pole arrangements G04C 1/04, G04C 1/06, G04C 1/08)}

G04C 1/028 ・・{with linearly moving armature}

G04C 1/04 ・by electric motors with rotating or with reciprocating movement {(in general H02K 33/00)}

G04C 1/06 ・・winding-up springs

G04C 1/062 ・・・{by oscillating movement}

G04C 1/065 ・・・{by continuous rotating movement}

G04C 1/067 ・・・{by stepping rotating movement}

G04C 1/08 ・・raising weights

G04C 1/082 ・・・{by oscillating movement}

G04C 1/085 ・・・{by continuously rotating movement}

G04C 1/087 ・・・{by stepping rotating movement}

G04C 1/10 ・Protection against overwinding (in mechanical clocks or watches G04B 1/20, G04B 3/06, G04B 3/10; {G04B 5/24, G04B 9/02})

G04C 1/12 ・・of the spring

G04C 1/14 ・・of the weights

G04C 3/00 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means {Synchronisation G04C 11/00}

G04C 3/001 ・{Electromechanical switches for setting or display (in general H01H)}

G04C 3/002 ・・{Position, e.g. inclination dependent switches}

G04C 3/004 ・・{Magnetically controlled}

G04C 3/005 ・・{Multiple switches (G04C 3/004 takes precedence)}

G04C 3/007 ・・{Electromechanical contact-making and breaking devices acting as pulse generators for setting}

G04C 3/008 ・{Mounting, assembling of components}

G04C 3/02 ・wherein movement is regulated by a pendulum

G04C 3/021 ・・{using mechanical coupling (using more than one pendulum G04C 3/025; using torsion pendulums G04C 3/033; using conical pendulums G04C 3/0335)}

G04C 3/022 ・・・{with constant impulses}

G04C 3/024 ・・{using other coupling means, e.g. electrostrictive, magnetostrictive}

G04C 3/025 ・・{using more than one pendulum (synchronisation between master and slave pendulums G04C 13/028)}

G04C 3/027 ・・using electro-magnetic coupling between electric power source and pendulum (G04C 3/033 takes precedence)

G04C 3/0271 ・・・{the pendulum controlling contacts and mechanically driving the gear-train (constructional details of contact devices G04C 13/06, G04C 23/06)}

G04C 3/0273 ・・・{the pendulum controlling contacts, thereby electromagnetically driving the gear-train or several gear-trains (generating driving pulses in master-clocks G04C 13/0463)}

G04C 3/0275 ・・・{the pendulum controlling contacts, the pendulum driving electro-magnet simultaneously driving the gear-train}

G04C 3/0276 ・・・{the pendulum controlling indirectly, i.e. without mechanical connection, contacts, e.g. by magnetic or optic means}

G04C 3/0278 ・・・{the pendulum controlling the gear-train by means of static switches, e.g. transistor circuits}

G04C 3/033 ・・using torsion pendulums; using conical pendulums (construction thereof G04B 17/00)

G04C 3/0335 ・・・{using conical pendulums (construction thereof G04B 17/30)}

G04C 3/04 ・wherein movement is regulated by a balance {construction thereof G04B 17/063}

G04C 3/042 ・・{using mechanical coupling}

G04C 3/045 ・・・{with constant impulses}

G04C 3/047 ・・{using other coupling means, e.g. electrostrictive, magnetostrictive}

G04C 3/06 ・・using electro-magnetic coupling between electric power source and balance

G04C 3/061 ・・・{the balance controlling contacts and mechanically driving the gear-train}

G04C 3/062 ・・・{the balance controlling contacts, the gear-train or several gear-trains being driven electro-magnetically thereby}

G04C 3/063 ・・・{the balance controlling contacts, the balance driving electro-magnet simultaneously driving the gear-train}

G04C 3/064 ・・・{the balance controlling indirectly, i.e. without mechanical connection, contacts, e.g. by magnetic or optic means}

G04C 3/065 ・・・{the balance controlling gear-train by means of static switches, e.g. transistor circuits (synchronisation of balance G04C 11/084)}

G04C 3/066 ・・・・{Constructional details, e.g. disposition of coils}

G04C 3/067 ・・・・{Driving circuits with distinct detecting and driving coils}

G04C 3/068 ・・・・・{provided with automatic control}

G04C 3/069 ・・・・{Driving circuits using a single coil for detection and driving purposes}

G04C 3/08 ・wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, {e.g. electrostatically}

G04C 3/10 ・・driven by electro-magnetic means

G04C 3/101 ・・・{constructional details}

G04C 3/102 ・・・・{of the mechanical oscillator or of the coil}

G04C 3/104 ・・・・{of the pawl or the ratched-wheel (in general G04B 11/04, G04C 11/005)}

G04C 3/105 ・・・・・{pawl and ratched-wheel being magnetically coupled}

G04C 3/107 ・・・・{Controlling frequency or amplitude of the oscillating system (circuits G04C 3/108)}

G04C 3/108 ・・・{Driving circuits}

G04C 3/12 ・・driven by piezo-electric means; driven by magneto-strictive means

G04C 3/125 ・・・{driven by magneto-strictive means}

G04C 3/14 ・incorporating a stepping motor (G04C 3/02 to G04C 3/12 take precedence {generating timing pulses G04F 5/00, G04G 3/00; setting G04G 5/00; synchronisation G04C 11/00K, G04G 7/00; generating commutating pulses in masterclocks G04C 13/0463, G04C 13/02; slave clocks actuated intermittently by electromechanical step advancing mechanisms G04C 13/10; control circuits for stepping motors in general H02P 8/00})

G04C 3/143 ・・{Means to reduce power consumption by reducing pulse width or amplitude and related problems e.g. detection of unwanted or missing step}

G04C 3/146 ・・{incorporating two or more stepping motors or rotors}

G04C 3/16 ・incorporating an electro-dynamic continuously rotating motor (G04C 3/02 to G04C 3/12 take precedence; clocks driven by synchronous motors G04C 15/00; {apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with electric driving means, e.g. incorporating clocks G04F 3/06, G04F 3/08; electromechanical stop watches G04F 8/00})

G04C 3/165 ・・{comprising a mechanical regulating device influencing the electromotor (constructional details of the mechanical regulating device G04B 17/00)}

G04C 3/18 ・incorporating electro-thermal or electro-pneumatic driving means

G04C 5/00 Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements (regulators G04C 3/00)

G04C 5/005 ・{Magnetic or electromagnetic means}

G04C 9/00 Electrically-actuated devices for setting the time-indicating means (of slave clocks G04C 13/03; mechanical setting devices G04B 27/00; radio-controlled time-pieces G04R)

G04C 9/02 ・brought into action by radio transmission

G04C 9/04 ・by blocking the driving means {see provisionally G04C 9/00}

G04C 9/06 ・by decoupling the driving means (combined with blocking means G04C 9/04){see provisionally G04C 9/00}

G04C 9/08 ・by electric drive, {i.e. for mechanical clocks; see provisionally G04C 9/00}

G04C 10/00 Arrangements of electric power supplies in time pieces {(circuits G04G 19/00; mounting, assembling of components of electromechanical watches G04C 3/008, of electronic watches G04G 17/00)}

G04C 10/02 ・the power supply being a radioactive {or photovoltaic} source

G04C 10/04 ・with means for indicating the condition of the power supply {in general G01R 31/00B}

G04C 11/00 Synchronisation of independently-driven clocks (radio-controlled time-pieces G04R)

G04C 11/002 ・{by changing the driving speed}

G04C 11/005 ・{by changing the ratio of the driving-gear}

G04C 11/007 ・{by positioning of the index or by regulating the length of the pendulum in dependance on the time difference with a standard}

G04C 11/02 ・by radio {time setting brought into action by radio G04C 9/02}

G04C 11/023 ・・{provided with arrangements to prevent synchronisation by interfering signals}

G04C 11/026 ・・{the time-piece preparing itself on set times on the reception of the sychronising signal}

G04C 11/04 ・over a line (transmitting time signals over telephone networks H04M 11/06){time setting G04C 9/00}

G04C 11/043 ・・{provided with arrangements to prevent synchronisation by interfering signals}

G04C 11/046 ・・{the time-piece preparing itself on set time on the reception of the synchronising signal}

G04C 11/06 ・with direct mechanical action on the time-indicating means {time setting G04C 9/00}

G04C 11/08 ・using an electro-magnet or-motor {for oscillation correction}

G04C 11/081 ・・{using an electro-magnet}

G04C 11/082 ・・・{acting on the pendulum (mutual synchronisation of pendulums G04C 13/028)}

G04C 11/084 ・・・{acting on the balance}

G04C 11/085 ・・{using an electro-motor}

G04C 11/087 ・・・{acting on the pendulum (mutual synchronisation of pendulums G04C 13/028)}

G04C 11/088 ・・・{acting on the balance}

G04C 13/00 Driving mechanisms for clocks by master-clocks

G04C 13/02 ・Circuit arrangements; Electric clock installations

G04C 13/021 ・・{master-slave systems using transmission of singular pulses for driving directly slave-clocks step by step (G04C 13/03 takes precedence)}

G04C 13/022 ・・・{via existing power distribution lines}

G04C 13/023 ・・・{via existing transmission lines (transmitting time signals over telephone networks H04M 11/06)}

G04C 13/025 ・・・{via special lines}

G04C 13/026 ・・・{by radio}

G04C 13/027 ・・{master-slave systems using transmission of other driving signals, e.g. coded signals}

G04C 13/028 ・・{transmission systems for synchronisation of pendulum of slave-clocks by pendulums of master-clocks}

G04C 13/03 ・・Pulse transmission systems with additional means for setting the time indication of slave-clocks {G04C 13/028 takes precedence}

G04C 13/04 ・・Master-clocks

G04C 13/0409 ・・・{monitoring or controlling master-clock or system with more than one master-clock, e.g. for switching-over to standby motor or power system}

G04C 13/0418 ・・・・{by using devices similar to slave-clocks}

G04C 13/0427 ・・・・{Systems in which slave-clocks function as master-clocks for other slave-clocks (synchronisation of independently-driven clocks G04C 11/00, setting G04C 9/00)}

G04C 13/0436 ・・・{provided with supplementary means for setting or changing the time indication of the slave-clocks}

G04C 13/0445 ・・・・{for automatically correcting of or compensating for disturbances}

G04C 13/0454 ・・・・{for automatically setting of slave-clocks after correction or after setting of master-clock}

G04C 13/0463 ・・・{Arrangements for generating normal driving pulses}

G04C 13/0472 ・・・・{by starting an independent mechanical driving devices, e.g. motor controlling the contacts}

G04C 13/0481 ・・・・{by switching on an electromagnetic driving device, e.g. electro-motor, controlling the contacts}

G04C 13/049 ・・・・{by using current generating driving device}

G04C 13/06 ・・・Contact devices (for simultaneously winding several clocks G04C 1/00)

G04C 13/065 ・・・・{controlled by a pendulum or a balance}

G04C 13/08 ・Slave-clocks actuated intermittently

G04C 13/10 ・・by electromechanical step advancing mechanisms {independent clocks or watches incorporating a stepping motor G04C 3/14; stepping motors in general H02K 33/00}

G04C 13/105 ・・・{setting the time-indicating means (master-slave systems with setting means G04C 13/03; adjusting independently-driven clocks G04C 9/00, G04C 11/00)}

G04C 13/11 ・・・with rotating armature

G04C 13/12 ・・by continuously-rotating electric motors {independent clocks G04C 3/16; clocks driven by synchronous motors G04C 15/00}

G04C 13/14 ・・by electrically-released mechanical driving mechanisms

G04C 15/00 Clocks driven by synchronous motors

G04C 15/0009 ・{without power-reserve}

G04C 15/0018 ・・{provided with hand-actuated starting device}

G04C 15/0027 ・・{provided with automatic-starting device}

G04C 15/0036 ・・{provided with means for indicating disturbance}

G04C 15/0045 ・・{provided with means for checking sense of rotation}

G04C 15/0054 ・{with power-reserve}

G04C 15/0063 ・{Synchronous clock systems, e.g. provided with radiolink or using transmission of alternating current via existing power distribution lines}

G04C 15/0072 ・・{Setting the time-indicating means, e.g. by controlling the frequency or by changing the drive of the separate clocks by using an auxiliary motor}

G04C 15/0081 ・・{Automatic stabilisation of net frequency with regard to time, e.g. by comparing one of the clocks with an independent clock, means being provided for automatic compensation of disturbances}

G04C 15/009 ・{Lubricating}

G04C 17/00 Indicating the time optically by electric means (G04C 19/00 takes precedence; by mechanical means G04B 19/00, G04B 19/20)

G04C 17/0008 ・{by bands}

G04C 17/0016 ・・{with date indication}

G04C 17/0025 ・{by flaps}

G04C 17/0033 ・・{with date indication}

G04C 17/0041 ・{by a combination of different types of indicating devices, e.g. flaps and drums}

G04C 17/005 ・{by discs (by drums G04C 17/0075)}

G04C 17/0058 ・・{with date indication}

G04C 17/0066 ・・・{electromagnetically driven, e.g. intermittently (clocks incorporating a stepping motor G04C 3/14)}

G04C 17/0075 ・{by drums or drum-like devices}

G04C 17/0083 ・・{with date indication}

G04C 17/0091 ・{Combined electro-optical and electro-mechanical displays (see provisionally also G04G 9/0082)}

G04C 17/02 ・by electric lamps

G04C 19/00 Producing optical time signals at prefixed times by electric means

G04C 19/02 ・by electric lamps

G04C 19/04 ・by indicating members moved electrically, e.g. flap, band

G04C 21/00 Producing acoustic time signals by electrical means {(for mechanical clocks or watches G04B 21/08, G04B 25/00)}

G04C 21/02 ・Constructional details (G04C 21/04, G04C 21/16 take precedence){sound producing devices in general G10K, e.g. G10K 1/00}

G04C 21/04 ・Indicating the time of the day (acoustic indication of time G04B 21/00)

G04C 21/06 ・・by striking mechanism

G04C 21/08 ・・・with snail

G04C 21/10 ・・・with locking plate

G04C 21/12 ・・by electro-acoustic means

G04C 21/14 ・・・Electro-acoustic time announcement, i.e. spoken

G04C 21/16 ・producing the signals at adjustable fixed times

G04C 21/18 ・・by mechanically unlocking an electro-mechanical vibrator, e.g. actuated by the leakage flux of the electric driving means

G04C 21/185 ・・・{provided with means for sheeting off or temporarity stopping the signal}

G04C 21/20 ・・by closing a contact to ring an electro-mechanical alarm

G04C 21/205 ・・・{by the hand(s) or handlike members closing the contact}

G04C 21/22 ・・・put into action by the arbor of a mechanical alarm work

G04C 21/24 ・・・put into action by the spring of a mechanical alarm work

G04C 21/26 ・・・put into action by the vibrations caused by the operation of a mechanical alarm work

G04C 21/28 ・・by closing a contact to put into action electro-acoustic means, e.g. awakening by music

G04C 21/30 ・・with provision for a number of operations at different times, e.g. ringing the bells in a school

G04C 21/305 ・・・{by the hand(s) or handlike members closing the contacts}

G04C 21/32 ・・・giving indications at a number of places each at a different time, e.g. system of alarms in a hotel

G04C 21/323 ・・・・{by the hand(s) or handlike members closing the contacts}

G04C 21/326 ・・・・{adjustable from the different places themselves}

G04C 21/34 ・・Devices on watches or similar portable timepieces

G04C 21/36 ・・Signal repeating devices

G04C 21/38 ・・Adjusting the duration of signals

G04C 23/00 Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (if restricted to producing acoustic time signals by electrical means G04C 21/00; mechanical alarm clocks G04B 23/02; apparatus which can be set and started to measure-off predetermined intervals G04F 3/06; time or time-programme switches which automatically terminate their operation after the programme is completed H01H 43/00)

G04C 23/02 ・Constructional details

G04C 23/04 ・・Housings, supports, shielding, or similar stationary parts

G04C 23/06 ・・Driving or regulating means

G04C 23/08 ・・Programming means

G04C 23/10 ・・for actuating any element which operates, or initiates the operation of, the device concerned

G04C 23/12 ・・Electric circuitry

G04C 23/14 ・Mechanisms continuously running to relate the operation(s) to the time of day

G04C 23/16 ・・acting only at one preselected time or during one adjustable time interval

G04C 23/18 ・・for operating one device at a number of different times

G04C 23/20 ・・・with contacts operated, or formed by clock hands or elements of similar form

G04C 23/22 ・・・with the actuating element carried by a disc

G04C 23/24 ・・・・the actuating element controlling another element mechanically

G04C 23/26 ・・for operating a number of devices at different times

G04C 23/28 ・・・with contacts operated, or formed, by clock hands or elements of similar form

G04C 23/30 ・・・with the actuating element carried by a disc

G04C 23/32 ・・・・the actuating element controlling another element mechanically

G04C 23/34 ・・with provision for automatic modification of the programme, e.g. on Sunday

G04C 23/342 ・・・{some operations being performed at another time}

G04C 23/345 ・・・{another programme being carried out}

G04C 23/347 ・・・{some operations being overridden}

G04C 23/36 ・・・by external influences

G04C 23/38 ・Mechanisms measuring a chosen time interval independently of the time of day at which interval starts

G04C 23/40 ・・using continuously-running mechanism

G04C 23/42 ・・acting only at the end of a single time interval

G04C 23/44 ・・・with provision for selection from a number of preset intervals

G04C 23/46 ・・・with provision for adjustment of the interval (G04C 23/44 takes precedence)

G04C 23/48 ・・acting at the ends of successive time intervals

G04C 23/50 ・・with provision for modification of the interval(s) by external influences

G04C 99/00 Subject matter not provided for in other groups of this subclass