β Scribed by Rolling, B. I.
No coin nor oath required. For personal study only.
BY COLONEL B. 1. ROLLING, D.S.O. 'I'hc subject of iiiagiictic separation lins not received thc notice it dcscrves : tlicrc is n pnucity of litcriitiirc o i i tlic subject. A grcnt r:iricty of triitlcs lire iiitcrc*stc*rl in its possil)ilitics, n i i d niaiiy firms Iinvc ciiclcnwurctl with iiiorc or lrss SIIC~CSS to solve tlicir A s longngo ns 1 i%!, Fullerton ol)tninctl pntciit rights for mngiictic se1)nrntioii iii lCtiglniitl, hiit it inis not till lSI)Ij, wlicii \'ctIicrill of J3cthlclie1ii, U.S.A., used clcctro-mng~icts for this purpose niitl clcmonstrntcrl by Iwncticnl trials that i t wiis possibblc, by employing a ticltlsaturnteil with R iiiagiietic flus of ~~(Iciisity iicyer before applied in t h t \'ny, to sc1)ariitc grpilt 1i11111bcr of miiiernls foriiicrly consiclcrctl to bc iioii-tnagiictic, that tlic full possil)ilitics of clccttwiiingiictic sepriition I~cgnii to I)c rcnlisccl.
\Vitliin tlic last sistiwi ycnrs tlic t l t ~\ d o p i i i c : i i t of iiingiictic scl)ii1+ilt iori Iiils I ) ~C I I gr(.atlg n c c ~t i t ~i i t ~~l , OI'll prol~lcnls.
over n scnlc 5. '.h cotitml is clcctro-iiiiigiictic itiitl ccmsist.s of (I. niovirig coil 2 in tlic ficltl of ii secoiitl p riiiniicnt tti;tgiet All. A dry cell, i i i i c r o -~~~i ~~~e t shunts iIiit1 a. 'tnrinblc resistmcc arc provided by Iiicniis of whicli tlic currcnt in thc coil c n i ~ I)c varied iii tiircc stages fronr 0 to 12,000 micro-amperes.
π SIMILAR VOLUMES