coal trade bulletin - Clpdigital.org

and pulled the corresponding 25 loads, made up
into a trip on the butt entry ready for the intermediate
locomotive—all in 22 minutes.
These gatherers are of low construction, standing
28 inches high above the rails.
are the same as the
Thus they
loaded machines in
height and will go
into any room. They
are equipped with
electric cable reels
for use in working
where no trolley
wire is hung. The
cables are 350 feet
long, permitting easy
reach to the face of
300-foot rooms, even
with the hooks set a
considerable distancedown
the entry.
The locomotive
frames are of steel
outside the wheels,
forming large and
roomy cabs at the
ends for motorman
and gathering reel.
The coal lies on a
general rise toward the southeast, with local rolls
and dips making variable grades, favorable and
unfavorable, up to 5 and 6 per cent, in places
where to the general rise is added the local rise
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from a level or dip stretch. These grades the
Type 1,600 locomotives have to negotiate in their
intermediate haulage work from butts to main
haul partings. In this service they do some al-
THE COAL TRADE BULLETIN. 33
most phenomenal hauling—pulling trips which
would seem beyond the tractive capacity of a 3ton
locomotive and which would be impossible
except for the single-motor unit drive for the four
wheels and, of course, the steel tires and generous
Fig. 8—line of the Type IDO0 Goodman Gatherers Keeling Loads from Rooms.
use of sand, plus Watt roller bearing cars.
9—The Watt Car wilh
One of these locomotives has an average grade
of 5 to 6 per cent., on which it has started from
rest and pulled up 20 loads, of a gross weight
averaging 3,300
pounds each. Trips
of 16 and IS such
loads are common
practice.
These two locomotives
have been in
service for several
years and have the
older type of cast
frame, which since
has been superseded
by steel composite
construction in more
recent designs
Each carries an electric
cable reel, for
which now there is
less use than before
the new room gatherers
came. Pre :
er Bearing
vious to that they gathered on the entries the
loads pushed out by the niiners, leaving empties
for them tc push in.
The cars now in use—old ones having practi-