Reports of the Inspectors of Mines of the anthracite coal regions of ...

INSPECTORS OF MINES. 133
district of Luzerne and Carbon counties ; also during 1813 there had been
6 fans put up at the collieries, as follows :
Two fans, 16 feet diameter, at Cross Greek, Drifton.
Two fans, IG feet diameter, at No. 7, Summit Hill.
One fan, 16 feet diameter, at No. 9, Summit Hill.
One fan, 12 feet diameter, at No. 9.
One fan, T feet diameter, at No. T, Stockton.
One fan, 16 feet diameter, at No. 5, Stockton.
l\ECAriTULATIOX OF MACHINERY.
Number of steam engines in use 210
Estimated horse power.
Number of steam boilers in use
11 /2S0
176
Average length of boilers
'
27 ft.
Average diameter of boilers 33 in.
Average pressure per square inch 69 lbs.
Estimated lineal feet of boilers in district, (equal to o.968--f miles), 20,952
Upper Lehigh Collieries.
Situated 11 miles north of Ilazleton, in Luzerne count}^, on the estate of
the Nescopec coal company and partl}^ on land belonging to the estate of
Tench Coxe, and operated by the Upper Lehigh coal company.
Slope, No. 1.—Sunk on the south dip of the Buck Mountain or B vein,
at an angle of about 24^°, a distance of 365 feet, vertical 181 feet. The
top or mouth of the slope is 1,807 feet above mid-tide, and at the bottom of
the same 1,626 feet. The vein is about 12 feet thick, and the coal of superior
quality. The east gangway has been driven 1,400 feet and the west
gangway 5,460 feet, with 19 breasts working. Those breasts are opened
36 feet wide, leaving a pillar of 18 feet for the support of the superincumbant
strata.
Slope, No. 2.—Sunk on the same dip of. the same vein, at an angle of
about 32°, a distance of 455 feet. Elevation above mean tide at top of
slope, 1,787 feet ; at the bottom, 1,547 feet ; perpendicular depth of slope,
240 feet. The east gangway has been driven 2,400 feet, with 13 breasts
working, and the west gangway 4,600 feet, with 41 breasts working. There
is a counter gangway about midway in the slope, and the hoisting from
the bottom and the counter is done by having the hoisting drum of different
diameter, and works to perfection. They have 49,094 feet of T iron track
in and ab©ut Nos. 1 and 2 slope, and 187 mine car.^, with a breaker capacity
of 800 tons of coal per day. The one breaker prepares the coal from both
slopes. They employ at the two slopes 2 bosses, 93 miners, 56 laborers,
31 company men, &c., 11 drivers, 3 door boys in the mines, 10 mechanics, 4
head and plate men, 8 breaker hands, 3 drivers, 64 slate pickers, in all 75
men and boys and 51 mules. They shipped during the year ending December
31, 1875, 114,812.18 tons of coal, and used 1,882 kegs of mining powder,
and worked 142 days.
Ventilation.—This is produced by a 12-feet diameter ventilating fan.
Whenever the fan gets out of repairs the mines arc ventilated by exhaust
steam from the pump. The air is conducted to the face of the gangway bjmeans
of bratticing along the side of the gangways, as the vein will not
admit of an airway being driven in solid coal owing to the irregularity of
the^pitch of the vein, &c. They have doors wherever required, and they
close of their own accord. The}' have a traveling way for men to travel
9 Mine Rep.