MINEBK00804

• County: Boulder
• Volume: 12
• Document: Inspectr
• Suffix: A

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`~'j! The skid-way ie 6° Z 6°, three-oornered, timbers made
1 oY ins. , , •
_ P Level at`atione lire not provided with passage-ways
around the worldng'ehart'cnor provided with 8uard rails. The
~' ahaYt is seo
ured with pillars of ground on eaoh aide auttioient
to aeoure sestet ""'`~
y. The wiasea ere~not proteotecl by guard rails
._ ~ or oovered: The shaft Se not being sunk.
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The method"ot ore eatraotion le by means of o~arhand
~I atoping by mesas of si le hand drills
' f ~ aS~ llo. maohine arilla
~~ •'; are employed.
~~~i The method of timbers
ng employed is etnlle aovared with
f je$Sing and sza snYYlaieat to aeorire saSety, The timbers
~,'~
are prepared by hand from eprnoe and'axe 1n good oondition.
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,' i There are no ohutee.; -~ -' ~ '
Underground'tramming is done'tiy hand with steel DuoYete
!' ' on wood trollies and a traolcage of 18'~
6'u$8e and 8# T rails,
The average mount of water dealt with is two gallons
' per minute. The water is ha -
ndled with a bnoket.
The system employed Yor ventilation le a eiz-inoh pipe
'with steam het from the boiler and 1aenYtioieat for the
' Ao nozioua geese are'aet with. present.
Thu eanltary oondittona'ere good and all old timbers have
~; been removed from undorgrotind.
The shaft is divided into two oompartmunte, on` being
ased iro a buoket-way and the other--tor gladder-way. The ~-
,' der-way ~e equipped with sate and eooeesible ladders, oontains
~ the air pips and has 1 ~ .
,' e:1'dinge 7b apart. There is bnt one exit
f for the employee but as additiosµ,e2it:ie being provided for
ac rapidly as possible.
_ Candles are used Yor lighting nndergronnd.
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I! S T L T Z 8 T I C 8.
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!~ A~rsage Drodnotion of ore Des month, lii tone.
,i •
1'i ~ assay ~~ of ore per ton. X20.
Ooet per ton transporting oz ore, by ,
Coat Der ton tssetment oY ore, ~ ~~