| 摘要 |
1,240,936. Soldering. CONNECTICUT RESEARCH & MFG. CORP. 14 Feb., 1969 [11 Oct., 1968], No. 8296/69. Heading B3R. [Also in Division F2] In a tapered spigot and socket pipe joint the taper of the spigot is less than the taper of the socket, the opposed tapered surfaces being bonded together by a tapered tubular insert 5 of bonding material disposed between and extending the length of said surfaces. When the joint is to be effected between metal pipes 1, 3 e.g. of stainless steel, the insert 5 is of solder or brazing material, the insert being slightly longer than the tapered surfaces (Fig. 2, not shown). The width of the bonding material in the insert varies from 0À005 inch at its outer end to 0À00 inch at its inner end. The tapers may be from 4 to 20 degrees. In the case of plastics pipes an epoxy resin may be used as a bonding agent. |
