of part of the connections, will help into two segmental side rings, Fig. 8. The balls are to explain the action of the instrument. The lower mounted in pairs, the rings being cut in segments for ends of the keys are fitted with contact rings and insu convenience of insertion in the bearing and to… … There isa ratchet wheel, L, on the same shaft, and so outer end of the bearing is long asthe shaft is rotating, the ratchet, M, rides on closed with a dustproof cap WITH BALL BEARINGS. the top of the teeth, but as soon as the wheel stops, the which is screwed into the metal of the hub. successful…
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