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IPC 7
  G04 - G04B 19/34  
G04B02100-G04B04904
 

SECTION G – PHYSICS


G 04HOROLOGY


G 04 BMECHANICALLY-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 F03G; electromechanical clocks or watches G04C; electromechanical clocks with attached or built-in means operating any device at preselected times or after predetermined time intervals G04C 23/00; clocks or watches with stop devices G04F 7/08; structural details or housings specially adapted for electronic time-pieces with no moving parts G04G 17/00)


21/

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

21/

02.Regular striking mechanisms giving the full hour, half hour, or quarter hour

21/

04..Hour wheels; Racks or rakes; Snails or similar control mechanisms

21/

06..Details of striking mechanisms, e.g. hammer, fan governor

21/

08..Sounding bodies; Whistles; Musical apparatus (with electro-acoustic transmitters G04C 21/00)

21/

10..Releasing or locking the regular stroke, e.g. for silence during the night

21/

12..Reiterating watches or clocks

21/

14..Winding-up the striking mechanism by the clockwork; Winding-up the clockwork by the striking mechanism


23/

00Arrangements producing acoustic signals at preselected times (metronomes G04F 5/02; sound-producing apparatus per se G10)

23/

02.Alarm clocks (electrically-released alarm signals G04C 21/00)

23/

03..Alarm signal stop arrangements  [3]

23/

04..with coarse and fine setting of the preselected time

23/

06..adjustable for several preselected times with automatic stopping of the signal

23/

08..operating on successive days without resetting; operating only once in each 24 hours

23/

10..with presignal; with repeated signal; with changeable intensity of sound

23/

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


25/

00Indicating the time by other means or by combined means (electric or electromechanical indicating G04C)

25/

02.by feeling; Clocks or watches for blind persons

25/

04..Alarm clocks or watches with devices stimulating the skin

25/

06.by moving figures, e.g. cuckoo-clock, trumpet clock


27/

00Mechanical devices for setting the time-indicating means

27/

02.by making use of the winding means

27/

04..with clutch wheel

27/

06..with rocking bar

27/

08.by using parts of the case


Frameworks, supports, or arrangements of the clockwork parts in relation to each other, so-called "calibers"


29/

00Frameworks

29/

02.Plates; Bridges; Cocks

29/

04.Connecting or supporting parts


31/

00Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor (bearings in general F16C)

31/

004.characterised by the material used  [3]

31/

008..Jewel bearings (G04B 31/04 takes precedence)  [3]

31/

012..Metallic bearings  [3]

31/

016..Plastic bearings  [3]

31/

02.Shock-damping bearings

31/

04..with jewel hole and cap jewel  [3]

31/

06.Manufacture or mounting processes  [3]

31/

08.Lubrication  [3]


33/

00Calibers

33/

02.Circular calibers

33/

04.Non-circular calibers

33/

06.of extremely flat shape

33/

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

33/

10.with seconds hand arranged in the centre of the dial

33/

12.for extremely-long running times

33/

14.Calibers of which the mainsprings or barrels are easily removable (mainsprings G04B 1/14; barrels, arbors G04B 1/16)

33/

16.with arrangements affording protection of the clockwork against damage as a consequence of a rupture of the mainspring


35/

00Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears


Protection of the clockwork against damage from outside


37/

00Cases

37/

02.Evacuated cases; Cases filled with gases or liquids; Cases containing substances for absorbing or binding moisture or dust

37/

04.Mounting the clockwork in the case; Shock-absorbing mountings

37/

05..Fixed mountings for pocket or wrist watches  [3]

37/

06.Forming the passage for the winding stem through the case; Divided winding stems

37/

08.Hermetic sealing of openings, joints, passages, or slits

37/

10..of winding stems

37/

11..of the back cover of pocket or wrist watches  [3]

37/

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

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 A44C 5/00)

37/

16..Fastening the case to the bracelet  [3]

37/

18.for pocket or wrist watches (G04B 37/02 to G04B 37/16 takes precedence)  [3]

37/

20..with hinged covers or backs  [3]

37/

22.Materials or processes of manufacturing pocket watch or wrist watch cases  [3]


39/

00Watch crystals; Fastening or sealing crystals; Clock glasses

39/

02.Sealing crystals or glasses  [3]


41/

00Locking or holding devices for pendulums, chimes, or the like, for use during transport


43/

00Protecting clockworks by shields or other means against external influences, e.g. magnetic fields


Clocks with unusual features


45/

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

45/

02.Time-pieces of which the clockwork is visible partly or wholly

45/

04.Time-pieces with invisible drive, e.g. with hands attached to rotating glass disc


47/

00Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece (G04B 37/12 takes precedence; writing or drawing implements with devices for indicating time B43K 29/087; combined with cameras, projectors, or photographic printing apparatus G03B 29/00)

47/

02.Installations within mirrors, pictures, furniture, or other household articles (combinations with vehicle mirror assemblies B60R 1/12)

47/

04.with attached ornaments or amusement apparatus

47/

06.with attached measuring instruments, e.g. pedometer, barometer, thermometer, compass



49/

00Time-pieces using the position of the sun, moon, or stars

49/

02.Sundials

49/

04..Graduation or shaping of dials


  G04 - G04B 19/34   
 

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