MINEBK00576

• County: Boulder
• Volume: 10
• Document: Inspectr
• Suffix: A

-4-
?Sachine drills and hand drilling are used for ore extract-
:rty,
ion. The timbering is by square sets and stalls of native
j spruce and pine. Loading chutes ere plank. The undergro•ind
i
tramin~ is dono by hand with iron buckets pad trolleys.
Twelve lb. T rail sad 18 in, trackage. A medium a.aount
of water is e-c:.uatered, easily handled by a steam Cornish
', pomp. The ^entilation is b;;• connected surface openings.
The shaft is provided with two compartments, with ladder
way, cdintnininv, water, air and steam pipes. The landings
are not according to the law. The second ou'.let is
thro~~h the stopes, readily accessible to employee. The
nader~round system of ~ir-hting is by candles. The average
number of men employed for the year is six, working eight,
wares from x3.00 t. ,;3.50 per day. The cost o:-coal is
•34.50 per ton. The a••erage assay value por ton ie ,~60.
The coat o` smeltinP per `on, 510, Send blanks to
E. 'i. Lawson, Sugar Loaf, isoiilder, Colo.
en
is EC 0?Sd :NLhT I ON S .
L. Equip steam hoist with positive Sndicator in plain
view o: enginoer.
2. Stop using pipe and wooden plug tamping, bar and pro-
vide omployoa with woodon bars.
3, Provide the mine ^:ith z do°ice for thawing powder.
4. Post notice and signals at collar of shaft and levels.
S. Pro••ide r1ard rails at all level stations in shaft.
6. 0^erhaul ladderway :rom top to bottom in main shaft,
securing it safely, place laddor stations not to exceed 20
feet apart, incline ladders from station to station and pro-
vide snf:'icient room for mon to climb ladders readily.
7. Cover or fence all s::afts, pits or oxcavations on property,
g, Removo timbers where they ~•ome in contact with boilder,
9, Place anard rails around the winzes in levels.
10. Equip one manway thro stopes end winzea so ae to be
safe, secure and readily accessible r,o employee.
11. Be sure that eariimeor dose not use intoxicating liquors.