e. The commutator is large and insulated withbest mica. The clamp rigs are also mica, which will not shrink and loosen seg-ments, so common in other makes of machines. Carbon brushes are used, fittedin copper holders, with adjustable tension feed. The bearings are of gun metal,self-oiling and self… … Switch Boards Armature The core is built up of laminated punched discs, assembled directly on the shaftwith continuous key ; and are slotted before assembling, thus avoiding eddy cur-rents and undue heating. The conducting coils are formed and taped, then laid intubes of specially prepared…
Electric machinery industry · Industries · Armatures
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