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

INTRODUCTORY TO Off. Doc.
than we could dij^ tlicm, so it oceui-red to us that we might try the
old workings in the mine. A six-inch pipe was laid from the plant
down the shaft, which is 400 feet bektw the surface; thence from
the bottom of the shaft to an old chamber below its level. We w^ere
soon convinced that this was a success. Then another question
came forward: If the water of the washers could be disposed of
into the old workings, why not the breaker culm also? A practical
answer to this was secured by making the new connection. In the
spring of 1891 the trial was made with the culm cleanin-, and on
November 20th of the same year the connection was made w^ith the
coal breaker. So this system was begun six years ago last March and
completed the six years on the 20th of this month. After filling several
acres at the Dodson mine, the same system of Hushing was established
at the Black Diamond mine. When this system of flushing
was comi)leted at both places, different operators examined it, and
then applied it to their own collieries with success.
miM PLANT Tm nmum^ mm\
AS IN USE BY
IPLYMQUiTlnl OOAL £©
PLYMOOTH
FA
No. 1. Culm-Flushins Plant at the Dodson CoUiery.
The System.
1. Oulside.—A small Iniik is se( utidcr the cluitc that takes the
dirt from the buckwheat stircii. The dirt and water go into this
tank together and enter a piprdown llicsliart into the mine.
2. Inside.—This ]>i|)r is continucil along the main gangways and
airwavs fi-oin l)ott()in nt I lie slmft and branch turn-otV bv means of