itable under the outer magnet produces a strong magnetic field surround- the conditions. After considerable thought, it struck the from its nner face are a hundred tappet pins, which register ing the armature on all sides. author that empty kerosene oil tins would answer the pur- with the numbers… … hole at the side of his box, and exceeds 100, the second disk will on the pegs being simultane- be also moved one point, or as ously removed, and another hole many times as there are hun- made at the top of the tin, the sand ran out. The lower- with the armature journals, and with springs bearing…
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