GERMAN UNDERWATERS ORDNANCE MINES |
Chapter 12 - CLOCKS AND ASSOCIATED DEVICES |
ARMING CLOCKS |
UES II AND UES IIa WITH VORKONTAKT |
The Vorkontakt is an intermediate switch which is closed 15 to 20 minutes after the UES has started. Its purpose is to switch in the anti-recovery switch (LiS) and any other scuttling charges incorporated in the mine. |
Operation. The Vorkontakt, in either the UES II or UES IIa, ia a double-pole switch consisting of two sets of leaf springs held apart by a grooved roller, 1, figure 267. One set of leaf springs, 3, fits into the groove on the roller which is geared to the clockwork mechanism. Rotation of the roller in a clockwise direction causes leaf springs 2 and 3 to make contact and switch in the LiS. |
Figure 267 – UES II/IIa |
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