Verfahren zum Herstellen eines wickelbaren Bandes mit Distanzelementen

摘要

1,224,128. Electric transformers. ALLMANNA SVENSKA ELEKTRISKA AB. 29 Aug., 1969 [30 Aug., 1968], No. 43049/69. Heading HIT. Lengths 2 of adhesively treated electrically insulating material such as paper are spirally wound preferably with projecting portions 4 and adhesively secured to a base tape 1 to provide cooling channels when applied to transformer windings. The tape 1 may also be adhesively coated paper and the spiral portions secured using a hot air blast to soften the adhesive.