MINEBK00364

• County: Lake
• Volume: 13
• Document: Inspectr
• Suffix: A

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oloiQ tuse,no metal tamping bare allowed in mina-NO powder.mnu~ +
employed-Explosives era stored in magaaine,made of iron,whioh J,.
is situated 2GO~Seet from shaft-Average. amount kept in starage_
1 200 1be.Ylne is provided with tevioe for thawing powder.Charae-
tar of devioe:-Elaotrioity-NO oils or oandles staled with now-
3er. '
Mining. .
The main opening to thin mine ie the Silver Spoon shaft whioh
is sunk to the depth of 600 feet,and is oonneoted by a level of
' E00 feet in length running south with the Luema shaft,both of
these properties being worked under lease by the same parties.
There are maps and drawings of the properties.
Hoisting.
1[ethod employed:-Maohinery,by which men are raised and lowered
Height o! load hoisted:-2000 1bs.Distanee hoisted:-60o feet.
Cable of 7~8 inch eteel,praoticaily new-Cage fastened to rope
clamps and thimble-Cage la equipped with bonnet and safety olu-
! thhse,material is hole+ted Srorr one lovel,no eager employed-Bell
rove of 3~S inch steel-Mining Hureau signals errployed,whioh aro
yosted in engine room,oollar of ahaft,and level lever chairs
aro used for cago-Cage guidde are of Gregon yine ~ X 5 inches.
Mino Mothoda.
-:ethod of ors a:traotion:-Stoping and drifting-Mnohine drills
are employed: Xaugh-also single hand drilling-Timbering:-Square
setts-euttlolent.Tremming undorground by rson,with ordinary mine
care on 12 ib.to the yard rail.
Drainage.
pater ie yumpod to the 4th,level by eleotrio Lip to the U:oxia
r~haft where it is raised to eurtaoo by eleotrio pwaye in the
latter shaft-Amount of venter doalt with yes r_inute:-100 gn1u.
'~entiiation:-Metural draft.
Lxits.
shaft is divided into txo oompartmente and has ladder way to
aw'taoe,alro oonneoted rith Luera ^heft on 4th,level.
Ligl:tirtg underground:-tleotric:ty cr.0 cerdier.
Develoyecent.
Sot al llo.ot toet in shafts:-60U.Cost yes toot;-iIL.00.
• • • dsittr:-1000. ' • • M.dO.