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Report of the Bureau of Mines of the Department of Internal Affairs of ...

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354 REPORT OF THE INSPECTORS OF MINES. Off. Doc.<br />

14 feet long by 60 inches diameter, has been added to <strong>the</strong> boiler capacity<br />

at <strong>the</strong> air compressor plant. Mining boss, Elias Phillips.<br />

Morrell.—The coal at <strong>the</strong> lower boundary <strong>of</strong> this mine is rapidly<br />

being exhausted. All <strong>the</strong> coal is being mined from pillars and is<br />

getting well back towards <strong>the</strong> bottom <strong>of</strong> <strong>the</strong> slope. Several<br />

squeezes have occurred while drawing out <strong>the</strong> ribs and considerable<br />

coal has been lost in consequence. Considerable trouble is experienced<br />

in working <strong>the</strong> coal in consequence <strong>of</strong> <strong>the</strong> squeeze breaking <strong>the</strong><br />

ro<strong>of</strong>. Numerous falls occur on <strong>the</strong> roadways and in <strong>the</strong> working<br />

places, which makes it dangerous to life and limb and expensive to<br />

operate safely. The ventilation is good in all parts <strong>of</strong> <strong>the</strong> mine<br />

ex(;ept at <strong>the</strong> outer end <strong>of</strong> <strong>the</strong> slope, where an old flat is being reopened<br />

for <strong>the</strong> purpose <strong>of</strong> recovering some ribs which were left standing<br />

years ago. Here, considerable black-damp is mixed with <strong>the</strong><br />

air current. It is in contemplation shortly to hole this place through<br />

to an old country mine, which will give a supply <strong>of</strong> fresh air and will<br />

remedy <strong>the</strong> present trouble. The drainage is defective in parts on<br />

account <strong>of</strong> <strong>the</strong> numerous falls closing up <strong>the</strong> drains. Mining boss.<br />

James S. Connor.<br />

Mahoning-Atlas.—This mine is made up <strong>of</strong> <strong>the</strong> workings and slopes<br />

<strong>of</strong> what was formerly two separate mines, viz, Mahoning and Atlas.<br />

They are connected underground with hauling roads, and <strong>the</strong> same<br />

ventilating fan gives air to both, and <strong>the</strong> same pumping arrangement<br />

drains both mines and <strong>the</strong>y behmg to <strong>the</strong> same owners. They are<br />

now consolidated into one mine under <strong>the</strong> management <strong>of</strong> <strong>the</strong> same<br />

mine foreman. The general conditions are good, <strong>the</strong> mine being<br />

well ventilated, drained and looked after. Mining boss, Frank<br />

Kodgers.<br />

Mt. Braddock.—The headings in this mine are still being pushed<br />

forward to develop <strong>the</strong> mine, but owing to <strong>the</strong> great demand for coal<br />

to charge <strong>the</strong> increased number <strong>of</strong> ovens which were built last year,<br />

<strong>the</strong> rooms are being worked out as fast as <strong>the</strong>y can be won out <strong>of</strong> <strong>the</strong><br />

solid coal by <strong>the</strong> developments <strong>of</strong> <strong>the</strong> headings, and <strong>the</strong> i)lan is to<br />

draw no ribs until <strong>the</strong> boundary is reached. It is a (piestion, however,<br />

whe<strong>the</strong>r, by leaving all <strong>the</strong> ribs stand-ng for so long a time before<br />

drawing <strong>the</strong>m, a squeeze will not overrun <strong>the</strong> mine whenever<br />

rib drawing is commenced, and a large part <strong>of</strong> <strong>the</strong> coal never be recovered.<br />

Time will determine <strong>the</strong> result, and I am <strong>of</strong> <strong>the</strong> opinion that<br />

it is ra<strong>the</strong>r a risky experiment, and may prove a costly one. The ventilation,<br />

drainage and general conditions for <strong>the</strong> safety <strong>of</strong> <strong>the</strong> mine<br />

are good. Mining boss, John liitz.<br />

Mt. Hope.—This mine is in good condition in all respects. It has<br />

all <strong>the</strong> advantages <strong>of</strong> good natural ventilation and drainage and is<br />

well looked after. Mining boss, George Armstrong.

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