US 4,127,741 A · Arrangement for elastically clamping glass fibre rods

Abstract

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.

Claims21

Dependent claims

An arrangement for fixing a sheath comprised of a material of one coefficient of expansion on a glass fibre reinforced plastic rod of a different coefficient of expansion, said arrangement comprising:

said rod being elongated and extending in a direction;
said sheath surrounding said rod;
said sheath having an internal bore;
said sheath being comprised of a plurality of sections arranged in series longitudinally along said sheath;
first buffer means support means inside each said section of said sheath;
respective second buffer means support means on said rod and spaced from the respective said first buffer means support means;
elastic and compliant buffer means between each said first buffer means support means and the respective said second buffer means support means;
moving in said direction along said rod, each said buffer means having the characteristic that its compliance is greater than the compliance of the neighboring said buffer means back along said rod, with the compliances of said buffer means being selected to correspond locally to the elongation of said rod with respect to said sheath during changes in operating conditions to which said arrangement is subjected.

5 more elements

said rod being elongated and extending in a direction;
said sheath surrounding said rod;
said sheath being comprised of a plurality of sections arranged in series longitudinally along said sheath;
elastic and compliant buffer means located inside each said sheath section and joining said sheath at each said section withsaid rod at each said section;
said buffer means in each said section having the characteristic that the elastic compliance thereof is less than the elastic compliance of the said buffer means inside the neighboring said sheath section moving in said direction of elongation of said rod, with the compliances of said buffer means in each said section being selected to correspond locally to the elongation of said rod with respect to said sheath in that said sheath section during changes in operating conditions to which said arrangement is subjected.

2 more elements

Dependencies are inferred from the claim text.

Arrangement for elastically clamping glass fibre rods

Life of this patent

Arrangement for elastically clamping glass fibre rods

Life of this patent

Abstract

Claims21