The workingman's advocate. [volume] (Chicago [Ill.]) 1864-1877, 1870-12-17

gether as they rise over their heads; their
devoted heads should say.
81 do say" says be with the shining
brass lamp. after getting his pipe in success
full operation; "how I've you and your son
doing doing in this breast; be you u king
we'll out, David 7"
"Ob! be doing very we'll, thank you
Dan el {; me and my boy be; and ! do think
you be so good boss as ever l woricked
for in my life. you see"
"Wcll, you see" says David 81 do
like to do WHIT is right, you know it does
me no good, you see, to cheat a woric man.
How do you ike this air, David ?"
''Oh, til air be good, it will blow out my
light in the heading. ! never saw better
air in my life
Mr.. Editor. you see Daniel, the "inside
boss, holding. his brass lamp over the out
side manway, to allow the current Of air
to play on its fame lie is immensely sat
s6ed with the result, and David flatters and
compliments him at the same time on &C
count Of it. Certainly there is brisk
wind, but take notice that the manway is
small in size, and the quantity of air is
lacking to produce good ventilation. You
have followed the air through four breasts
already, and if you Just approach David 6
lamp, whose flame is burning straight on
account Of it being out Of the current, you
will see 1t capped with dark ominously blue
looking flame, and you will notice also that
the flame does not burn so brightly as the
fame Of the lamps burnt in No. | breast,
where The air was not charged SO much with
impurities. Suppose you hint in your very
excellent daily paper, that it would not be
a bad plan to allow the air to pass to the
monkey, or discharging air course, after it
bad passed through four breasts or 50 this
would prevent the air from gathering an
over abundance of impurities and it would
prevent it from ever reaching an explosive
point. The remaining breasts could easily
be supplied with fresh currents of air from
the gangway, which in turn could be dis
posed of in the same way. This plan Of
ventilation is called by the mining engineers
Of the old world, splitting Tie current; and
it is new idea for in the Newcastle coal
field, this system is in universal practice
Ask your numerous readers why it cannot
be introduced here for you may be sure
the miners would not have the least objec
ton to currents of fresh air ? You see
MIR. Editor, that this fellow is boasting o.
bis ventilation, where, let ne tell you, ht
has not the slightest need to do so; fol
there are ten more working places through
which this current Of air must pass anC
ventilate before it is allowed to pass off tt
the final discharging air passage. But Da
] yid Is satisfied as long as the air will bto,t
CIT his light IN the heading The miner,
Of w ales and Of the South Of England are
so accustomed to the plan Of c0UrSing thu
air in one undivided body around the entire
workings Of a mine, that they can not SCI
why several moderately moving currents are
not better than one single current moving
with high velocity through the entire mine
But, Mr.. Editor, when a current of air
moving with high velocity, becomes over
charged with explosive gas, no kind Of a
lamp, not even Ddvy is safe when ex
posed to It's force Yes, sir, current Of
explosive air, moving with a velocity Of
seven feet per second and upwards, will
drive the fame though the wire guise Of a
safety lamp, and produce one of those ex-
plOsions your pennya liners like to chron
icle for the benefit, aad to the horror o.
your readers.
But no more Of this; that boss with bis
shining brass lamp is again cheek by joW
with David, and they seem bent on talking
matters over; SC let Us hear their views o.
passing events.
TO BE CONTINUED.