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 G 04 C 21/00; mechanical alarm clocks G 04 B 23/02; apparatus which can be set and started to measure-off predetermined intervals G 04 F 3/06; time or time-programme switches which automatically terminate their operation after the programme is completed H 01 H 43/00)
23
/
02
•
Constructional details
23
/
04
•
•
Housings, supports, shielding, or similar stationary parts
23
/
06
•
•
Driving or regulating means
23
/
08
•
•
Programming means
23
/
10
•
•
for actuating any element which operates, or initiates the operation of, the device concerned
23
/
12
•
•
Electric circuitry
23
/
14
•
Mechanisms continuously running to relate the operation(s) to the time of day
23
/
16
•
•
acting only at one preselected time or during one adjustable time interval
23
/
18
•
•
for operating one device at a number of different times
23
/
20
•
•
•
with contacts operated, or formed, by clock hands or elements of similar form
23
/
22
•
•
•
with the actuating element carried by a disc
23
/
24
•
•
•
•
the actuating element controlling another element mechanically
23
/
26
•
•
for operating a number of devices at different times
23
/
28
•
•
•
with contacts operated, or formed, by clock hands or elements of similar form
23
/
30
•
•
•
with the actuating element carried by a disc
23
/
32
•
•
•
•
the actuating element controlling another element mechanically
23
/
34
•
•
with provision for automatic modification of the programme, e.g. on Sunday
23
/
36
•
•
•
by external influences
23
/
38
•
Mechanisms measuring a chosen time interval independently of the time of day at which the interval starts
23
/
40
•
•
using continuously-running mechanism
23
/
42
•
•
acting only at the end of a single time interval
23
/
44
•
•
•
with provision for selection from a number of preset intervals
23
/
46
•
•
•
with provision for adjustment of the interval (G 04 C 23/44 takes precedence)
23
/
48
•
•
acting at the ends of successive time intervals
23
/
50
•
•
with provision for modification of the interval(s) by external influences