Our boys; what they can do and how to do it (1893)
Stoddart, William, [from old catalog] comp · New York, Hunt & Eaton; Cincinnati, Cranston & Curts · leaf 24
ood-screws tofasten the mag-net to the basemust also bedrilled \ in. from the ends. This strip of iron is fastened onwith the second pair of nuts to the bolts. Next comes the armature (c. Fig. 1). A plan of this isgiven in Fig. 4. «is a strip of brass 3^xfxy\- inches. This maybe obtained from the…
Handicraft · Amusements · Sports
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