Abstract: A pasture fence device is proposed with two independent storage capacitors, which can, by means of a switching element, be discharged through the primary winding of a transformer in order to produce a HV pulse. The second storage capacitor serves to increase the pulse energy. The inventive pasture fence device is intended to ensure that the output voltage is always sufficiently high to trigger a herding shock, while keeping the energy consumption as small as possible. The invention accomplishes this by providing a second switching element (THY2) to control the charging process of the second capacitor (C2).

Abstract: A device for fixing a disk pack to the drivable shaft of a disk store such that it can be removed comprises a spring lock washer which is mounted in a slot at the upper end of the shaft. A cup spring pre-tensioned against the disk pack is supported with its inner, inclined supporting surface against the spring lock washer, which is itself supported by the upper inclined side wall of the slot.