IPC 6 English version G04B !A-G04B 19/34

G04-G04B01934

SECTION G– PHYSICS

G 04

HOROLOGY

G 04 B

MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS (spring- or weight-driven mechanisms in general F 03 G; electromechanical clocks or watches G 04 C; electromechanical clocks with attached or built-in means operating any device at preselected times or after predetermined time intervals G 04 C 23/00; clocks or watches with stop devices G 04 F 7/08)

Note

This subclass covers mechanically-driven calendar clocks or clockwork calendars, and the mechanical part of such clocks or calendars.

Driving mechanisms

with driving weight

Mechanisms in which the clockwork acts as the driving weight

with several weights

Driving weights; Chains; Chain wheels; Arbors for chain wheels

with mainspring

with several mainsprings

Mainsprings; Bridles therefor (mainsprings with bridles G 04 B 1/18; alloys C 22 C; springs in general F 16 F)

Barrels; Arbors; Barrel axles (arrangements facilitating the removal of the mainspring G 04 B 33/14)

Constructions for connecting the ends of mainsprings with the barrel or the arbor

Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel (in connection with keys or the like G 04 B 3/06, G 04 B 3/10; in connection with automatic winding devices G 04 B 5/24)

Compensation of changes in the motive power of the mainspring (by mechanical shaping of the mainspring G 04 B 1/14)

with both mainsprings and driving weights

driven by liquids or gases; Liquid or gaseous drives for mechanically-controlled secondary clocks

Winding

Normal winding of clockworks by hand or mechanically; Winding-up several mainsprings or driving weights simultaneously

Removably-mounted keys or the like

Rigidly-mounted keys, knobs, or crowns (divided winding stems G 04 B 37/06)

Keys or the like with means preventing overwinding (protecting devices arranged in, or attached to, the barrel G 04 B 1/20; in connection with automatic winding devices G 04 B 5/24)

by parts of the cases

Protecting means preventing overwinding (arranged in, or attached to, the barrel G 04 B 1/20; in connection with keys G 04 B 3/06; in connection with automatic winding devices G 04 B 5/24)

by mechanical means, e.g. pneumatic motor (winding-up with electric or electromechanical means G 04 C)

Automatic winding-up

by self-winding caused by movement of the watch

by oscillating weights the movement of which is limited

acting in one direction only

acting in both directions

by oscillating weights the movement of which is not limited

acting in one direction only

acting in both directions

Construction of the weights

Supports, suspensions, or guide arrangements, for oscillating weights

Suspension of the oscillating weight at its centre of rotation [3]

by movements of other objects, e.g. by opening hand-bag, by opening case, by opening door; Winding-up by wind power

by thermometric, barometric, or like effects or alterations

Protecting means preventing overwinding (arranged in, or attached to, the barrel G 04 B 1/20; in connection with keys or the like G 04 B 3/06; in connection with parts of the cases G 04 B 3/10)

Combined normal and automatic winding-up

Supervision of the state of winding, e.g. indicating the amount of winding

Devices controlled by such state, e.g. device affording protection against overwinding (protecting means preventing overwinding arranged in or on the barrel G 04 B 1/20; protecting means in connection with keys or the like G 04 B 3/06; in connection with parts of the cases G 04 B 3/10; in connection with automatic winding devices G 04 B 5/24)

11/

Click devices; Stop clicks; Clutches

11/

Devices allowing the motion of a rotatable part in only one direction [3]

11/

Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet [3]

13/

Gearwork

13/

Wheels; Pinions; Spindles; Pivots (bearings G 04 B 31/00)

15/

Escapements (electric or magnetic means for converting oscillatory to rotary motion in electromechanical time-pieces G 04 C 5/00)

15/

permanently in contact with the regulating mechanism

15/

Cylinder escapements

15/

Free escapements

15/

Lever escapements

15/

with constant impulses for the regulating mechanism

15/

Adjusting (tools therefor G 04 D 1/02); Restricting the amplitude of the lever or the like

15/

Component parts or constructional details, e.g. construction of the lever or the escape wheel

17/

Mechanisms for stabilising frequency [3]

17/

Oscillators acting by gravity, e.g. pendulum swinging in a plane

17/

Oscillators acting by spring tension

17/

Oscillators with hairsprings, e.g. balance

17/

Oscillators with coil springs stretched and unstretched axially

17/

Oscillators with torsion strips or with springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane

17/

Compensation of mechanisms for stabilizing frequency

17/

for the effect of variations of temperature (alloys independent of variations of temperature C 22 C)

17/

for the effect of variations of atmospheric pressure

17/

for the effect of variations of the impulses

17/

for the effect of unbalance of the weights, e.g. tourbillon

17/

Rotating governors, e.g. centrifugal governors, fan governors (for striking mechanism G 04 B 21/06)

17/

Component parts or constructional details, e.g. collet, stud

17/

for fastening the hairspring onto the balance [3]

18/

Mechanisms for setting frequency [3]

18/

Regulator devices; Indexing devices [3]

18/

Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat [3]

18/

by setting the collet or the stud of a hairspring [3]

18/

Component parts or constructional details [3]

Time indicating

19/

Indicating by visual means (by electric lamps G 04 C 17/02; display arrangements in general G 09)

19/

Back-gearing arrangements between gear train and hands

19/

Hands; Discs with a single mark or the like

19/

Dials (for time-pieces without clockwork G 04 B 49/04)

19/

Geometrical arrangement of the graduations

19/

Ornamental shape of the graduations or the surface of the dial; Attachment of graduations to the dial

19/

Selection of materials for dials or graduations

19/

Fastening the dials to the clock or the watch plates

19/

Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24

19/

Graduations on the crystal or glass, on the bezel, or on the rim

19/

Indicating by numbered bands, drums, discs, or sheets

19/

Drums [3]

19/

Arrangements for indicating different local apparent times; Universal time-pieces

19/

by means of additional hands or additional pairs of hands [3]

19/

Clocks or watches with date indicators; Clockwork calendars

19/

243

characterised by the shape of the date indicator [3]

19/

247

disc-shaped [3]

19/

Devices for setting the date indicators manually [3]

19/

253

Driving or releasing mechanisms [3]

19/

257

drum-shaped [3]

19/

Clocks or watches with indicators for tides, for the phases of the moon, or the like

19/

Adjustable guide marks or pointers for indicating determined points of time

19/

Illumination of dials or hands

19/

by luminescent substances

19/

Position of the hands projected optically

G04B 21/00 - G04B 49/04