Bauhaus-Universität Weimar

Jaquet Contact Stop Watch No. 301c 
ior Electric Interruptions 
Fig. 16 Contact Stop Watch No. 301c. 
This type only differs from Contact Stop Watch No. 301 in that it 
permits the time to be read in Vio seconds. For the mode of use we refer 
to Contact Stop Watch No. 301. The time intervals are not the same 
throughout as in No. 301. Division of the dial in whole and „ seconds. 
1 revolution of the large hand in 30 seconds with double numbering 
from 0 to 30 and 30 to 60 seconds. 
1 revolution of the small hand in 15 minutes. 
Adjustable time intervals: 
5 
15 
30 
seconds 
10 
30 
60 
seconds 
15 
30 
60 
seconds 
'A 
1 
3 
minutes 
every y or whole second. 
Jaquet Remote Control Stop Watch No. 302 
with double Magnet for Electric Remote Control and hand Operation 
For registration of '/5 seconds. 
Dial division as No. 300 
The movement of this stop watch is made on the same principle 
of construction as that of type No. 300 but in addition two electro-magnets 
are mounted on the back of the case (See Fig. 18) with which starting 
and stopping can be effected electrically with a current of 8—12 volts 
from any distance, each by a short impulse of current. The vertical 
magnet (Fig. 18) is the starting magnet. As soon as it receives an impulse 
the armature is attracted and the watch is started. 
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