MINEBK00804

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

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.HI III-BG & 1ldI~E IdSTHOD9-Conlin,
Steam is employed Yor hoisting. The men are raised and
lowered with the hoisting maohinery. A weight of 1;0008 is
• hoistod a diatanoe oY l0U` with a b/8 in. steel wire oable
that has been need two years. The oable ie in good:oondition:
A safety hoog and chain. fastened on end oY oable with eooket
and babbitt metal is used. Safety hook and ohain has been in
use tP10 years.
The State code oY signals and pall belle are omployed.
The bell line is 1/4 in. twist wire in goon oonaition. Tho code
' or signals is posted in the engine room. Peaeona are ProhibiZ;ed
xrom riding on loaded baskets and this order is posted near
.the Dollar of the shaft.
Bnokets aro loaded by hams. The skids aro three-ooraered.
6" x 6" pine timbers, and are in good oonaition.
Lovel stations havo boon provided with passage-way around
tho working shalt but no gaard rails have boon provided. There
are no winzes. The shalt is scoured pith pillars oY ground on
eaoh ciao.
The method oY ore extraotion is by means oY overhand .
atoping and drifting. Snlliran and hardaog maohine drills are
used and some single hand drilling is Gone.
Stalls, oovered with lagging, is tho mothod oY timbering.
This method is onYYioient to seonre safety. The timbers are
-Prepares by hang from eprnoo and pino and are in good oonaition.
Chutes are loaded Dy hand and gravity.
• Onderground tramming is done by hand pith steel buokete
cad wood trollies on a traoYnge of 18" gunge and 8f T rails.
The amount of rrator to bo dealt eith is small and is
raised xith a buokot.
Tho ventilation is natnral•end enffioient. Do noxious
gases are mot w1th.
The seaitsry oonditlona aro good nna ell old timbers hsve
been removed Yson underground.