Rosenthal Technik Ag

Ewald Bauer

Martin Kuhl

Martin Kreuzer

Open-air compound insulators are made treating a prefabricated glass-filter rod with silane, extruding a rubber layer on the rod, strengthening the rubber layer and bonding prefabricated screens to the rubber layer by vulcanization.

Process for manufacturing open-air compound insulators

For fixing metal sheaths on glass fiber reinforced plastic rods, which rods are used, for example, in composite insulators: the sheath is in a number of sections in a longitudinal array; there is an abutment inside the sheath at each sheath section, there is a shoulder piece on the outside of the rod inside each sheath section; the abutment in a sheath section is at one longitudinal side of the respective shoulder piece in that sheath section; elastic and compliant buffer means, such as springs, or the like, are placed between the abutment and its shoulder piece; the compliance of the buffer means increases toward one end of the arrangement to compensate for the different rates of expansion of the sheath and the rod; other embodiments all have appropriate buffer means in each sheath section, which buffer means increase in compliance moving toward the end of the sheath through which the rod exits.

Arrangement for elastically clamping glass fibre rods

Composite insulator having a plurality of umbrella-shaped sections on a trunk; each section is comprised of a mould filled with a hardenable material which adheres to the mould and the trunk; shaping the mould to receive the hardenable material.

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Wunsiedel, Germany

Ewald Bauer