MINEBK00838

• County: Gilpin
• Volume: 15
• Document: Inspectr
• Suffix: B

794
JeYYereon-Calhoun - 4. -' '
._.., .. -'. SIIRFA CE PLANT- Contln.
~ona; Ingeraol=Hand,'ImperiaY, double'-oompound, 'Air: ooiM1preaaor;
one,•12"'x T4":'doulils-oylinder,-Yriation=gear, steam hoist on
the east eha3t; one, 14" x 12", double-cylinder, Yriatlon=gear,
steam hoistwith double dium, - oa. the JeYYereori ahaYt.'. No maohin- ~, I~~Ie~ill,
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gry~is used at this time exaepb thak on the Oalhovn shaft.
3eft oCal it ncod *er inol, tho water uaad in the bo1Ur
1z tRkea tram •the mina and the proaeure .anrried is 80~. The

boiler.wae last:inepeoted Marsh ll; 1913.'

The hoists are equipped with Positive indioatore in plain
vSow oY-the~engineora'wha operate at the:englaea:.The engineers

nre twonty-Your'and~Yort~ years o3-age respeatively':and eaoh has

had ten years'- oY experienoe: Neithei mnn is addioted',to the use i
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03 iatoxioating liquors.
'fxame
The building on the Calhoun shaft 1s 30' x 6A'.
and`'oovered with: iron. The head Yrame~ is 2-Post, . 12!' x 1?." pine

timbers and 26' high. The sheave. wheel 1a 4' in diameter, oast ~,~ ,'~I ['I ~;~~',

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iron and Pilled withrops•
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The building on t}ue.JeYYeraon shaYt is atone and steel'.
with Yive steel sheaves. The root is oorrugated iron. This I

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building 1a 40' x 70' 1n size.
At~the.Oalhoun shaft the emithl.a ahop.and.ohanging house
enter
nre is th'e ahaYt house. At the Jefferson shaft the anrp
in 'a wing:: 20' x 40' in.aiQ.e. on the.
shop and maohiae:ehcp axe aonatruoted.
northeast side of the main biil.lding and similarly

On the 'south' aide o3 eaoh shaft house are Your ore blue with
e oapnoity Yor eaoh bin oY 50-tone. The Plants for preparing
tlmb.eie'ni'e on the outside wheee tho dump is situated.

>'No protection'has boon provtdod in'oaee of-aoaident by
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The oollnre' oY ,the 'shaft nre• of auYYialent height ko
present persona Yxom tripping ancL failing in .the ahait'and axe
also provided' with` good and suffiaieat doors to prevent material ~
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from 3'allinj~ i'n the shaft while dumping. ~~;
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