This standard prescribes the requirements for aluminium plug type spindles, spring grip type having following tapers suitable for use with warp tubes conforming to IS 3625 (Part 1) : 1983 'Specification for warp tubes for ring spinning and doubling spindles: Part 1 General (second revision)':
a) 1 : 40 taper spindles,
b) 1 : 64 taper spindles, and
c) 1 : 38 taper spindles.
IS 3934-1989 history
1989IS 3934-1989 Aluminum plug spindles for spinning and doubling machines—Specification