The system of the invention includes a downender station 10 which receives and secures a spent fuel assembly 20 in a vertical disposition and is then pivoted to a horizontal position after the upper nozzle has been removed, and a second station 12 generally aligned with the first station includes a multiple rod gripper 56 which is used to grip onto the exposed fuel rod ends and pull the fuel rods ...

Aqueous emulsions of crosslinkable polyaddition organopolysiloxane compositions, well adapted for the thin layer coating of flexible substrates to impart water-repellency and nonadherency thereto, comprise a first aqueous emulsion A including end-vinylated polysiloxanes, a vinylated cyclotrisiloxane, a hydroorganodiorganopolysiloxane, a polyvinyl alcohol and a polyalkylene glycol alkyl ether or al...

Organopolysiloxane composition capable of being crosslinked by a hydrosilylation reaction in a thin layer for coating flexible material, comprising a vinylated organopolysiloxane, a hydrogenated organopolysiloxane and a platinum group metal catalyst, characterised in that between 0.5 and 60 % of the number of the vinyl groups are contributed by a vinylorganocyclotrisiloxane. The composition can be...

A detecting apparatus using ultrasonic waves comprises a sensor unit (4) and a signal processing unit (1) for processing a reception signal (B1) sent from the sensor unit (4) to output a detection signal. These units (1, 4) are connected by a cable (9) having three core wires (9a, 9b, 9c). A power supply signal (A2), an ultrasonic transmission signal (A1) and operation indication signal (A3) are m...

A liquid crystal aligning agent consisting essentially of a polyimide resin obtained by the polymerization of a diamine, a tetracarboxylic acid dianhydride and a monoamine of the formula:

Photographic yellow dye forming colour couplers of the general formula: wherein Z is t butyl or p alkoxyphenyl, R is halogen or an alkoxy of l-4 carbon atoms, R<1> , halogen, alkyl or alkoxy, R<2> is hydrogen R<2> and R<3> are each alkyl groups chosen so that the coupler is non-diffusible when present in a photographic material, Y is hydrogen or a group which splits off on colour devel...