Meetings of other societies

• Book ID: 102884735
• Publisher: Wiley (John Wiley & Sons)
• Year: 1922
• Weight: 535 KB
• Volume: 41
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000410610

✦ Synopsis

niucli nhorc looo C. Wool arid cotton arc rotted 1)s tlie condciisiition of :icid, if tlie tcnipcriiturc of tho giis frills below tho dc\v-point. 111 sonie c:isc~, ncitl fnnics iiro noutriiliscd with limo or zincositlo dust Iicforo being Jiltcrcd. Shnrp, yritty piirticlcs cut tho biirs. I'iltcr riinttrcsscs. fillet1 with metiillic sisted corrosion.

Ho suggested tlint tho ntmosplrero a t Uolhi was laden with-very fine particles of dust (siind) from tho ncighl~~ouring dcsort, and that them, ~vhcn ,blown by tho winds, would csert a kind of polishing iiction, insu5cient to c n i m orosion, but siiflicicnt to inhibit rusting. the wiitcr, electrolytic protection, protcctivo coatings (oxidisctl liiycr, iiisoiulilo siilts, load or viirnishce), nncl tho uso of spcci:il nlloys.

31r. I?. Adcock rend :I p:ipcr on tlio " Iiiternpl JTcchiiiiisni of Cold U'ork rind Jlccrvstiillisntion in L1VE1t1'00L.

I' Thy Industrial Treatment of Fumes nnd Ilusty Cnses w:is the su1)jcct of n pnpcr presented to this Section on Alnrcli 17 by Dr. \V. E. Gibbs.

Smokes, fuiiics and dusty gnscs can :ill bc rognrdcd ns disperse systcins, in wliicli tho disiiorsed substiinco is solid or liquid nnd the dispcrsion mcdium ; I gas. It is convenient to distin uish thrco liinds of disperse systcnis i n gnses, nccortiiii; to tlio six0 of )iirticlo (dcprco of dispersion) : -(u) I)usts, in whicii the articles nre larger tlinii 10" em. clinm+r.

S u c i pnrticlcs s c t t ~e i n still iiir witli increasing vclocity. T h y do not diffuse. ( b ) Clouds, the particles of tvhicli rnngo in tlinnictcr from lo-' to 10'' cm. Such nnrticles settle in still nir nt

MEETINGS OF OTHER SOCIETIES.

THE INSTITUTE O F JIETALS.

Tho niinunl meeting was held in tho rooms of tho Jnstitution of Jlcchnnical Engineers, &I'., on Jlnrcli 0 and 10. After tlie formnl business had 1)ccn concluded, the new president, Blr. Leonard fjuinncr, took tho chnir and delivered his prcsi-dontin1 addrcss, which dealt nininly with the commercial aspect of metals, nnd tho important work tho lnstituto lind done, arid iv.m doiiig, t o promoto tho coninicrcinl prosperity of tho industry. Until ii few years ngo mniinfiicturers contributed littlo t o tho fund of coninion knowledge, mid thero was Q grcat tcndciicy to liido mnnufncturing methods, : i d lrcop thcm ns secrets. Durin the mar this spirit was partly overcomo, n n f co-operntion botwcoii producers was no\v much moro conimo~~ than forincrly. Blr. Sumncr np enled for moro support for tho lnstituto from mercgants, and expressed tho opinion thnt i t would be to their ndvnntnge to learn nioro nlmut tho products in ~vliich they dealt than nmiy of them knew a t present. I n spe:ilting of tho rducntion of scientific workers, lie commented on tho difliculty of obtaining sciontilically trnincd inen who ivcro fitted to riinringo works, and appcnlcd to professors arid tc:ichers to givo that aspect ot trnining their consideration.

Dr. G. I). llengougli presented n pnpcr on I' Notes