Improvements in or relating to the manufacture of self-lubricating soft stuffing-box packings provided with soft metal or carbon insertions

摘要

673,262. Stuffing-box packing. JENSEN, J. E. May 8, 1950 [Oct. 31, 1949], No. 11401/50. Class 122(v) [Also in Group V] A packing 1 in the form of a ring or spiral of vulcanized material has staggered insertions 2a, 2b or 3a, 3b made of carbon or soft metal The insertions are embedded in the packing, but exposed at the working face, and overlap in the direction of motion of the moving part, e.g. shaft. Fig. 1 shows a packing, compris. ing three separate rings, for a rotary member. Fig. 2 shows a packing, comprising four separate rings, for a sliding member. The soft metal insertions may be hollow to receive lubricant.