coal trade bulletin - Clpdigital.org

32 THE COAL TRADE BULLETIN.
track, hence closing is assured by tbe necessity
for avoiding interference with the gathering work.
The roof is of such character that no props are
used anywhere, in entries or rooms.
Reorganization of a 20-year-old mine I'or mod­
ern efficiency in its haulage methods is a work of
[""is Sin Mil
time and trouble. The time element has cove: ed
a considerable period now, and the troubles have
gradually grown less, until at present the system
is in good working older.
Main haulage involves service from the slope
bottom to two pai tings, each about a mile in. For
this work there are two 5-ton haulage locomotives,
either of which will
handle tbe present
production, while the
other is held on
spare.
Intermediate haul­
age—taking gathered
trips from butt entries
to the two part­
ings—is done by two
Goodman "T y P e
1.600" 3-ton single-
motor locomotives,
Fig. 7.
Gathering from
rooms to butt entry
beads is performed
by Goodman "Type
1,500" low vein locomotives,
Fig. 8. of 2-ton weight in specially low
single-motor construction. There are four of
these, two for each intermediate locomotive. Two
more are being built, to go into new development
work on the north, hauling directly to the bottom
until production from this territory requires their
entire production.
The track- gauge is 36 inches, using 30-pound
rails on main haulage ways and 16-pound sections
for gathering and in rooms.
The gathering locomotives place empties and
pull loads, working directly to the face in ail
rccms. Room tracks are parted at tbe farthest
n„ c*u)
breakthroughs, giv­
ing double tracks
thence to the face
As n e w b r e a k
through are cut, thfl
partings are moved
forward, the expense
of this being war
ranted by the result
ant quickening ot-
the locomotive operation
of pushing in an
empty on one track
and shifting to the
other track to pull
the waiting load
By this method
there is always a car­
at the face, with no
wait between pulling of load and setting of empty.
Before the gathering locomotives were installed
the men pushed cars both ways, and rooms were
driven only 150 feet deep. Butts then were
spaced only 300 feet apart. All new work since
the locomotives came has been done on 600-foot
butt spacing, for rooms 300 feet deep. Many of
Fig. 7—uhi 1"' 16 looflman Gathering Locomotive.
the workings are in the transition stage and the
gatherers are not doing all they are capable of.
Indications warrant the expectation that when
conditions are right these locomotives will readily
handle 175 to 200 cars per 8-hour day. In new-
system territory one locomotive has taken a 25-
car trip of empties, distributed to 25-room faces,