Supervision of the state of winding, e.g. indicating the amount of winding
9
/
02
•
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
/
00
Click devices; Stop clicks; Clutches
11
/
02
•
Devices allowing the motion of a rotatable part in only one direction [3]
11
/
04
•
•
Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet [3]
13
/
00
Gearwork
13
/
02
•
Wheels; Pinions; Spindles; Pivots (bearings G 04 B 31/00)
15
/
00
Escapements (electric or magnetic means for converting oscillatory to rotary motion in electromechanical time-pieces G 04 C 5/00)
15
/
02
•
permanently in contact with the regulating mechanism
15
/
04
•
•
Cylinder escapements
15
/
06
•
Free escapements
15
/
08
•
•
Lever escapements
15
/
10
•
with constant impulses for the regulating mechanism
15
/
12
•
Adjusting (tools therefor G 04 D 1/02); Restricting the amplitude of the lever or the like
15
/
14
•
Component parts or constructional details, e.g. construction of the lever or the escape wheel
17
/
00
Mechanisms for stabilising frequency [3]
17
/
02
•
Oscillators acting by gravity, e.g. pendulum swinging in a plane
17
/
04
•
Oscillators acting by spring tension
17
/
06
•
•
Oscillators with hairsprings, e.g. balance
17
/
08
•
•
Oscillators with coil springs stretched and unstretched axially
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
17
/
20
•
Compensation of mechanisms for stabilizing frequency
17
/
22
•
•
for the effect of variations of temperature (alloys independent of variations of temperature C 22 C)
17
/
24
•
•
for the effect of variations of atmospheric pressure
17
/
26
•
•
for the effect of variations of the impulses
17
/
28
•
•
for the effect of unbalance of the weights, e.g. tourbillon
17
/
30
•
Rotating governors, e.g. centrifugal governors, fan governors (for striking mechanism G 04 B 21/06)
17
/
32
•
Component parts or constructional details, e.g. collet, stud
17
/
34
•
•
for fastening the hairspring onto the balance [3]
18
/
00
Mechanisms for setting frequency [3]
18
/
02
•
Regulator devices; Indexing devices [3]
18
/
04
•
Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat [3]
18
/
06
•
•
by setting the collet or the stud of a hairspring [3]
18
/
08
•
Component parts or constructional details [3]
Time indicating
19
/
00
Indicating by visual means (by electric lamps G 04 C 17/02; display arrangements in general G 09)
19
/
02
•
Back-gearing arrangements between gear train and hands
19
/
04
•
Hands; Discs with a single mark or the like
19
/
06
•
Dials (for time-pieces without clockwork G 04 B 49/04)
19
/
08
•
•
Geometrical arrangement of the graduations
19
/
10
•
•
Ornamental shape of the graduations or the surface of the dial; Attachment of graduations to the dial
19
/
12
•
•
Selection of materials for dials or graduations
19
/
14
•
•
Fastening the dials to the clock or the watch plates
19
/
16
•
•
Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
19
/
18
•
•
Graduations on the crystal or glass, on the bezel, or on the rim
19
/
20
•
Indicating by numbered bands, drums, discs, or sheets
19
/
21
•
•
Drums [3]
19
/
22
•
Arrangements for indicating different local apparent times; Universal time-pieces
19
/
23
•
•
by means of additional hands or additional pairs of hands [3]
19
/
24
•
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
/
25
•
•
•
•
Devices for setting the date indicators manually [3]
19
/
253
•
•
•
•
Driving or releasing mechanisms [3]
19
/
257
•
•
•
drum-shaped [3]
19
/
26
•
Clocks or watches with indicators for tides, for the phases of the moon, or the like
19
/
28
•
Adjustable guide marks or pointers for indicating determined points of time
