Salt Lake Herald-Republican | 1916-10-01 | Page 16 | Local News

un-I un But Mi 11 Sperry y ha has boon been able to improve im- im prove pro on this by hy making making- in use uso of ot th tha positive crater as ns a receptacle In which to Lo bum hurn Ursa a n superheated vapor Vl or gas aM I produced In It the tho arc nrc ue This Timis superheated s gas as is generated I b by certain special 1 materials ma mu- tennis that are arc producers of ut strong light and nd the tilts positive carbon bon it re impregnated im impregnated im- im t d with those tiles substances which arc liberated and con consumed d by tho the sit sit- tacking discharge from t the h opposite or 0 ne negative carbon curhan For lor the successful use UGO of or this bright ht vapor it I is lm necessary that It be con con- concentrated t In lit a 1 1 very small aroa area This Ihl end Is Ib met In tho tiro Sperry Spero arc by maintaining main maln- taming a u very vory deep crater In iii the positive I th tive carbon and into this cavity lt a the the- luminous vapor is pressed and com cam pressed As 11 A result t the mouth mount of tho the crater omits a very Vor intense which attains a x brilliancy ah at high as ns candle candle can can- dl dle power for COl each ench square square millimeter millimeter or candle power el to the till square inch Tho Tito arc fire flame name front from tho the negative carbon I is medium b by which h wh cli the time dazzling vapor is 18 punned back and into the tho crater of ot the positive C carbon The lamp amI which which h has hils recently boon exhibit c d In this city iL ha has a 1 diameter of ot live five feet and u a 11 total illuminating pow di of at cnn candles hs The rho limit lim Ilm it of oC sty its range has lm not yet yot been boen found but the beams have been seen by p people people peo peo- o- o pic sixty tulles miles way away from the search search- light A portion of ot the positive o t cr crater l no bigger than the the- head hN of r. r pin ha m tho the brilliancy 1 of 1000 candle power To obtain this tImIs light an au amazing tempora- tempora tuio turo Is It reached Th The little crater isan is 13 isan an furnace on a miniature scale lo capable c of ot boiling an anti and vaporizing O CI ry o or ordinary rocK The Tho nearest estimate of ot time tho temperature puts It at a OO tic do- Kr r greos os es Tho The beam can be focused down an and It has haa been barn demonstrated demon donlon- tod that heat hoat enough la Is thus pro pro- to pet vet fire firo to a pile of ot feet teet away I I. I