|  | G |
SECTION G — PHYSICS

INSTRUMENTS

|  | 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 (spring- or weight-driven mechanisms in general Fulltext... Hierarchy... Expanded...F03G; electric parts of clocks or watches Fulltext... Hierarchy... Expanded...G04C; clocks or clock mechanisms with attached or built-in means operating any device at preselected time or after predetermined time intervals Fulltext... Hierarchy... Expanded...G04C 23/00; clocks or watches with stop devices Fulltext... Hierarchy... Expanded...G04F 7/08)

|  | G04B |
Note(s) This sub-class includes mechanically-driven calendar clocks or clockwork calendars, and the mechanical part of such clocks or calendars.

|  | G04B 1/00 |
Driving mechanisms

|  | G04B 1/00 |
Driving mechanisms

|  | G04B 1/02 |
· | with driving weight

|  | G04B 1/04 |
· · | Mechanisms in which the clockwork acts as the driving weight

|  | G04B 1/06 |
· · | with several weights

|  | G04B 1/08 |
· · | Driving weights; Chains; Chain wheels; Arbors for chain wheels

|  | G04B 1/10 |
· | with mainspring

|  | G04B 1/12 |
· · | with several mainsprings

|  | G04B 1/14 |
· · | Mainsprings; Bridles therefor (mainsprings with bridles Fulltext... Hierarchy... Expanded...G04B 1/18; alloys Fulltext... Hierarchy... Expanded...C22C; springs in general Fulltext... Hierarchy... Expanded...F16F)

|  | G04B 1/16 |
· · | Barrels; Arbors; Barrel axles (arrangements facilitating the removal of the mainspring Fulltext... Hierarchy... Expanded...G04B 33/14)

|  | G04B 1/18 |
· · | Constructions for connecting the ends of mainsprings with the barrel or the arbor

|  | G04B 1/20 |
· · · | 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 Fulltext... Hierarchy... Expanded...G04B 3/06, Fulltext... Hierarchy... Expanded...G04B 3/10; in connection with automatic winding devices Fulltext... Hierarchy... Expanded...G04B 5/24)

|  | G04B 1/22 |
· · | Compensation of changes in the motive power of the mainspring (by mechanical shaping of the mainspring Fulltext... Hierarchy... Expanded...G04B 1/14)

|  | G04B 1/24 |
· | with both mainsprings and driving weights

|  | G04B 1/26 |
· | driven by liquids or gases; Liquid or gaseous drives for mechanically-controlled secondary clocks

|  | G04B 3/00 - G04B 11/00 |
Winding

|  | G04B 3/00 |
Normal winding of clockworks by hand or mechanically; Winding-up several mainsprings or driving weights simultaneously

|  | G04B 3/02 |
· | Removably-mounted keys or the like

|  | G04B 3/04 |
· | Rigidly-mounted keys, knobs, or crowns (divided winding stems Fulltext... Hierarchy... Expanded...G04B 37/06)

|  | G04B 3/06 |
· | Keys or the like with means preventing overwinding (protecting devices arranged in, or attached to, the barrel Fulltext... Hierarchy... Expanded...G04B 1/20; in connection with automatic winding devices Fulltext... Hierarchy... Expanded...G04B 5/24)

|  | G04B 3/08 |
· | by parts of the cases

|  | G04B 3/10 |
· · | Protecting means preventing overwinding (arranged in, or attached to, the barrel Fulltext... Hierarchy... Expanded...G04B 1/20; in connection with keys Fulltext... Hierarchy... Expanded...G04B 3/06; in connection with automatic winding devices Fulltext... Hierarchy... Expanded...G04B 5/24)

|  | G04B 3/12 |
· | by mechanical means, e.g. pneumatic motor (winding-up with electric or electromechanical means Fulltext... Hierarchy... Expanded...G04C)

|  | G04B 5/00 |
Automatic winding-up

|  | G04B 5/02 |
· | by self-winding caused by movement of the watches

|  | G04B 5/04 |
· · | by oscillating weights the movement of which is limited

|  | G04B 5/06 |
· · · | acting in one direction only

|  | G04B 5/08 |
· · · | acting in both directions

|  | G04B 5/10 |
· · | by oscillating weights the movement of which is not limited

|  | G04B 5/12 |
· · · | acting in one direction only

|  | G04B 5/14 |
· · · | acting in both directions

|  | G04B 5/16 |
· · | Construction of the weights

|  | G04B 5/18 |
· · | Supports, suspensions, or guide arrangements, for oscillating weights

|  | G04B 5/20 |
· | by movements of other objects, e.g. by opening hand-bag, by opening case, by opening door; Winding-up by wind power

|  | G04B 5/22 |
· | by thermometric, barometric, or like effects or alterations

|  | G04B 5/24 |
· | Protecting means preventing overwinding (arranged in, or attached to, the barrel Fulltext... Hierarchy... Expanded...G04B 1/20; in connection with keys or the like Fulltext... Hierarchy... Expanded...G04B 3/06; in connection with parts of the cases Fulltext... Hierarchy... Expanded...G04B 3/10)

|  | G04B 7/00 |
Combined normal and automatic winding-up

|  | G04B 9/00 |
Supervision of the state of winding, e.g. indicating the amount of winding

|  | G04B 9/02 |
· | Devices controlled by such state, e.g. device affording protection against overwinding (protecting means preventing overwinding arranged in or on the barrel Fulltext... Hierarchy... Expanded...G04B 1/20; protecting means in connection with keys or the like Fulltext... Hierarchy... Expanded...G04B 3/06; in connection with parts of the cases Fulltext... Hierarchy... Expanded...G04B 3/10; in connection with automatic winding devices Fulltext... Hierarchy... Expanded...G04B 5/24)

|  | G04B 11/00 |
Click devices; Stop clicks; Clutches

|  | G04B 13/00 |
Gearwork

|  | G04B 13/02 |
· | Wheels; Pinions; Spindles; Pivots (bearings Fulltext... Hierarchy... Expanded...G04B 31/00)

|  | G04B 15/00 |
Escapements (magnetic G 04 C 7/00)

|  | G04B 15/02 |
· | permanently in contact with the regulating mechanism

|  | G04B 15/04 |
· · | Cylinder escapements

|  | G04B 15/06 |
· | Free escapements

|  | G04B 15/08 |
· · | Lever escapements

|  | G04B 15/10 |
· | with constant impulses for the regulating mechanism

|  | G04B 15/12 |
· | Adjusting (tools therefor Fulltext... Hierarchy... Expanded...G04D 1/02); Restricting the amplitude of the lever or the like

|  | G04B 15/14 |
· | Component parts or constructional details, e.g. construction of the lever or the escape wheel

|  | G04B 17/00 |
Regulating mechanisms (magnetic G 04 C 7/00; controlling angular speed in general Fulltext... Hierarchy... Expanded...G05D 13/00)

|  | G04B 17/02 |
· | Oscillators acting by gravity, e.g. pendulum swinging in a plane

|  | G04B 17/04 |
· | Oscillators acting by spring tension

|  | G04B 17/06 |
· · | Oscillators with hairsprings, e.g. balance

|  | G04B 17/08 |
· · | Oscillators with coil springs stretched and unstretched axially

|  | G04B 17/10 |
· · | Oscillators with torsion strips or with springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane

|  | G04B 17/12 |
· | Setting the frequency

|  | G04B 17/14 |
· · | Regulator devices

|  | G04B 17/16 |
· | Adjusting the beat of the pendulum, balance, or the like

|  | G04B 17/18 |
· · | by setting the collet or the stud of the hairspring

|  | G04B 17/20 |
· | Compensation of regulating mechanisms

|  | G04B 17/22 |
· · | for the effect of variations of temperature (alloys independent of variations of temperature Fulltext... Hierarchy... Expanded...C22C)

|  | G04B 17/24 |
· · | for the effect of variations of atmospheric pressure

|  | G04B 17/26 |
· · | for the effect of variations of the impulses

|  | G04B 17/28 |
· · | for the effect of unbalance of the weights, e.g. tourbillon

|  | G04B 17/30 |
· | Rotating regulators, e.g. centrifugal regulator, fan governors (for striking mechanism Fulltext... Hierarchy... Expanded...G04B 21/06)

|  | G04B 17/32 |
· | Component parts or constructional details, e.g. collet, stud

|  | G04B 19/00 - G04B 27/00 |
Time indicating

|  | G04B 19/00 |
Indicating by visual means (by electric lamps Fulltext... Hierarchy... Expanded...G04C 17/02; display arrangements in general Fulltext... Hierarchy... Expanded...G09)

|  | G04B 19/02 |
· | Back-gearing arrangements between gear train and hands

|  | G04B 19/04 |
· | Hands; Discs with a single mark or the like

|  | G04B 19/06 |
· | Dials (for time-pieces without clockwork Fulltext... Hierarchy... Expanded...G04B 49/04)

|  | G04B 19/08 |
· · | Geometrical arrangement of the graduations

|  | G04B 19/10 |
· · | Ornamental shape of the graduations or the surface of the dial; Attachment of graduations to the dial

|  | G04B 19/12 |
· · | Selection of materials for dials or graduations

|  | G04B 19/14 |
· · | Fastening the dials to the clock or the watch plates

|  | G04B 19/16 |
· · | Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24

|  | G04B 19/18 |
· · | Graduations on the crystal or glass, on the bezel, or on the rim

|  | G04B 19/20 |
· | Indicating by numbered bands, drums, discs, or sheets

|  | G04B 19/22 |
· | Arrangements for indicating different local apparent times; Universal time-pieces

|  | G04B 19/24 |
· | Clocks or watches with date indicators; Calendar clocks or watches; Clockwork calendars

|  | G04B 19/26 |
· | Clocks or watches with indicators for tides, for the phases of the moon, or the like

|  | G04B 19/28 |
· | Adjustable guide marks or pointers for indicating determined points of time

|  | G04B 19/30 |
· | Illumination of dials or hands

|  | G04B 19/32 |
· · | by luminescent substances

|  | G04B 19/34 |
· | Position of the hands projected optically

|  | G04B 21/00 |
Indicating by acoustic means (at preselected times Fulltext... Hierarchy... Expanded...G04B 23/00; by electro-acoustic means Fulltext... Hierarchy... Expanded...G04C 21/04; sound-producing apparatus per se Fulltext... Hierarchy... Expanded...G10)

|  | G04B 21/02 |
· | Regular striking mechanisms giving the full hour, half hour, or quarter hour

|  | G04B 21/04 |
· · | Hour wheels; Racks or rakes; Snails or similar control mechanisms

|  | G04B 21/06 |
· · | Details of striking mechanisms, e.g. hammer, fan governor

|  | G04B 21/08 |
· · | Sounding bodies; Whistles; Musical apparatus (with electro-acoustic transmitters Fulltext... Hierarchy... Expanded...G04C 21/00)

|  | G04B 21/10 |
· · | Releasing or locking the regular stroke, e.g. for silence during the night

|  | G04B 21/12 |
· · | Reiterating watches or clocks

|  | G04B 21/14 |
· · | Winding-up the striking mechanism by the clockwork; Winding-up the clockwork by the striking mechanisms

|  | G04B 23/00 |
Arrangements producing acoustic signals at preselected times (sound-producing apparatus per se Fulltext... Hierarchy... Expanded...G10)

|  | G04B 23/02 |
· | Alarm clocks (electrically-released alarm signals Fulltext... Hierarchy... Expanded...G04C 21/00, Fulltext... Hierarchy... Expanded...G04C 23/00)

|  | G04B 23/04 |
· · | with coarse and fine setting of the preselected time

|  | G04B 23/06 |
· · | adjustable for several preselected times with automatic stopping of the signal

|  | G04B 23/08 |
· · | operating on successive days without resetting; operating only once in each 24 hours

|  | G04B 23/10 |
· · | with presignal; with repeated signal; with changeable intensity of sound

|  | G04B 23/12 |
· · | Alarm watches to be worn in pockets or on the wrist (giving signals by stimulating the skin Fulltext... Hierarchy... Expanded...G04B 25/04)

|  | G04B 25/00 |
Indicating the time by other means or by combined means (electric or electromechanical indicating Fulltext... Hierarchy... Expanded...G04C)

|  | G04B 25/02 |
· | by feeling; Clocks or watches for blind persons

|  | G04B 25/04 |
· · | Alarm clocks or watches with devices stimulating the skin

|  | G04B 25/06 |
· | by moving figures, e.g. cuckoo-clock, trumpet clock

|  | G04B 27/00 |
Setting the hands

|  | G04B 27/02 |
· | by making use of the winding means

|  | G04B 27/04 |
· · | with clutch wheel

|  | G04B 27/06 |
· · | with rocking bar

|  | G04B 27/08 |
· | by using parts of the case

|  | G04B 29/00 - G04B 35/00 |
Frameworks, supports, or arrangements of the clockwork parts in relation to each other, so-called "calibers"

|  | G04B 29/00 |
Frameworks

|  | G04B 29/02 |
· | Plates; Bridges; Cocks

|  | G04B 29/04 |
· | Connecting or supporting parts

|  | G04B 31/00 |
Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor (bearings in general Fulltext... Hierarchy... Expanded...F16C)

|  | G04B 31/02 |
· | Shock-damping bearings

|  | G04B 33/00 |
Calibers

|  | G04B 33/02 |
· | Circular calibers

|  | G04B 33/04 |
· | Non-circular calibers

|  | G04B 33/06 |
· | of extremely flat shape

|  | G04B 33/08 |
· | in which the gear train is arranged in different planes, e.g. parallel or inclined to each other (Fulltext... Hierarchy... Expanded...G04B 33/10 takes precedence)

|  | G04B 33/10 |
· | with seconds hand arranged in the centre of the dial

|  | G04B 33/12 |
· | for extremely-long running times

|  | G04B 33/14 |
· | Calibers of which the mainsprings or barrels are easily removable (mainsprings Fulltext... Hierarchy... Expanded...G04B 1/14; barrels, arbors Fulltext... Hierarchy... Expanded...G04B 1/16)

|  | G04B 33/16 |
· | with arrangements affording protection of the clockwork against damage as a consequence of a rupture of the mainspring

|  | G04B 35/00 |
Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears

|  | G04B 37/00 - G04B 43/00 |
Protection of the clockwork against damage from outside

|  | G04B 37/00 |
Cases

|  | G04B 37/02 |
· | Evacuated cases; Cases filled with gases or liquids; Cases containing substances for absorbing or binding moisture or dust

|  | G04B 37/04 |
· | Mounting the clockwork in the case; Shock-absorbing mountings

|  | G04B 37/06 |
· | Forming the passage for the winding stem through the case; Divided winding stems

|  | G04B 37/08 |
· | Hermetic sealing of openings, joints, passages, or slits

|  | G04B 37/10 |
· · | of winding stems

|  | G04B 37/12 |
· | Cases for special purposes, e.g. watch combined with ring, watch combined with button (watch guards or protectors Fulltext... Hierarchy... Expanded...A45C 11/10, Fulltext... Hierarchy... Expanded...A45C 11/12; watches combined with cosmetic powder containers Fulltext... Hierarchy... Expanded...A45D 33/30)

|  | G04B 37/14 |
· | Suspending devices, supports, or stands for time-pieces in so far as they form part of the case (wrist-watch straps, fastening means therefor Fulltext... Hierarchy... Expanded...A44C 5/00)

|  | G04B 39/00 |
Watch crystals; Fastening or sealing crystals; Clock glasses

|  | G04B 41/00 |
Locking or holding devices for pendulums, chimes, etc., for use during transport

|  | G04B 43/00 |
Protecting clockworks by shields or other means against external influences, e.g. magnetic field, light or other radiations

|  | G04B 45/00 - G04B 47/00 |
Clocks with unusual features

|  | G04B 45/00 |
Time-pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effect (ornamental shaping of dials Fulltext... Hierarchy... Expanded...G04B 19/10)

|  | G04B 45/02 |
· | Time-pieces of which the clockwork is visible partly or wholly

|  | G04B 45/04 |
· | Time-pieces with invisible drive, e.g. with hands attached to rotating glass disc

|  | G04B 47/00 |
Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece (Fulltext... Hierarchy... Expanded...G04B 37/12 takes precedence; combined with cameras, projectors, or photographic printing apparatus Fulltext... Hierarchy... Expanded...G03B 29/00)

|  | G04B 47/02 |
· | Installations within mirrors, pictures, furniture, or other household articles (combinations with vehicle mirror assemblies Fulltext... Hierarchy... Expanded...B60R 1/12)

|  | G04B 47/04 |
· | with attached ornaments or amusement apparatus

|  | G04B 47/06 |
· | with attached measuring instruments, e.g. pedometer, barometer, thermometer, compasses

|  | G04B 49/00 |
Time-pieces using the position of the sun, moon, or stars

|  | G04B 49/02 |
· | Sundials

|  | G04B 49/04 |
· · | Graduation or shaping of dials