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MINEBK00652
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Last modified
1/9/2009 1:03:31 PM
Creation date
11/18/2007 12:13:19 PM
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Mine Books
County
Pitkin
Volume
11
Document
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B
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NINE AND P~fI NE MET?i0 D S (Continued.) <br />Both single and double hand drilling is also employed. <br />The timbering method is that of square sets and open pit sr cribbing <br />and back filling etopes. <br />Red spruce and pine timber is usedrprepared at mill and in yard. <br />gates are employed, <br />Slide chutes with Brunton <br /> <br />Unclor ground tramming is done by manual laborrusing steel mine cars <br />Trackage 18 in. gttage and 12 lb rails. <br />Amount of water dealt with in gals per minute~avorage 2~h00 gals. <br />Steam pumps aro employsdvnapacityv7v000 galsr 1,647 galsr and 7~4 gala <br />Ventillat9.on is natural and fanrand in sufficient. Noxious gases <br />aro met with - sulphurotted hydrogen, <br />All old timbers }lave been removed from under ground workings wher- <br />ever nocassary,q Piro has been burning in parts of the olcl workings <br />the shall and timbers being on fire~and the same are hfutdlod by <br />bulk-handing and connecting the fire zone with aurPaae by Caphin <br />exhnunt fan; capanity 10000 au. Pt per minutaroparated by 100 h.p, <br />taotorrpull All g=utns to surfaoo. <br />A nmallorroperatod by a 50 h,p, motor,in also installed at same <br />point ,and held in relief; said fcuts are at mouth oP Olark tunnel <br />97ts shaft is dividnd into two oompartmonts,aage-way and ladder-way, <br />The ladders ors aePstnoaurn aJUI aaaesnih).o. Lndder-vrny contains <br />ntoam~vmtor and air pipes, <br />I,ruulingn aro provided in ladder-way trot to exreed RO ft apart, <br />Thorn aro vrinzos and man-grays oonneoting levels, At least ano man.. <br />way in kept in ropnir clod equippsd with laddora, <br />'Pho mind hen savors]. nxlta for employees, <br />Lighting under ground~sloatrirslty and aurdlns, <br />
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