The Democratic banner. (Mt. Vernon, Ohio) 1898-192?, 1914-02-10
SUCCESS
IS ATTAINED.
By The Chapman Engineer
ing Co. Of This City
In The Manufacture OF A
Gas Producer
Which Is A Vital Factor In
The Problem
And The Real Secret OfMaking
Good Window Glass
A Description OF The Pro-
duCef Built In Mt. Vernon


ed at Pittsburgh, Pa, has the following
write up Saturday concerning the
Chapman gas producers, which are
manufactured at the c. G G. Cooper
Works, this city:
During the past two years the Chap
man Engineering Co, of Mt. Vernon,
o., have been making a special study
of the application of producer gas to
the glass making industry, and it's sys-
TEN has been adopted by some of our
most progressive manufacturers who
have been obtaining excellent results.
The problem viewed from practical
standpoint, presented two phases for
study-the generation of a suitable
gas, and it's proper combustion in the
melting furnace. 1T became evident
early in the investigation that efficien-
cy in combustion was largely depend
ent upon supply of gas uniform in
quality and quantity. In other words,
the gas producer was the vital factor
in the problem, and in its correct de-
| sign lay the real secret of successful
use of producer gas in glass making.
The demand for uniformity was met
with their standard loft. furnace type
| tinuously from chamber so placed
| that it let's the fresh coal sink down
on to the firebed, as the latter requires
! it, and in amounts exactly proportion
| al to the needs of that part of the bed
passing beneath the chamber at the
time the coal is fed. The result is a
perfectly levelelled firebed at all
times. In addition to this automatic
| levelling, uniformity of texture of the
firebed through the body of the pro-
ducer is obtained by means of twist
ing action impaired to the firebed, by
revolving the upper and lower portions
of the producer at different speeds.
The function of this twisting effect is
to close up incipient blow holes.
This method of feeding and agit-
alton is radically different fro mthe
older schemes of intermittent firing,
with consequent rush of gas immedi'
ately after each dumping of coal Not
only is the supply of gas from the
Chapman producer uniform. but the
quality is maintained constant, since
the constituents of the gas, which
come from the distillation of the fresh
coal, are thrown into the gas contin
ually, and always in their proper pro
portions.
Another feature which makes for
uniformity is the ontinuous removal
of the ash. This is accomplished by a
device as ingenious as it is simple. The
ash removing mechanism includes an
ash crusher, which grinds up the larg
er pieces of clinker that may be form
ed. The operation is entirely auto
matte, so that once 1t is set for the
percentage of ash in the coal used, II
needs little attention beyond wheeling
away the elected ash,
Previous attempts to use producer
gas for glass making have met witt
much annoyance from the large
amounts of SCOT which collected in the
fues and necessitated frequent shut
downs for removal The Chapman
Engineering Co. attacked this problem
; from two points of view-repressior
and disposal during operation.
In the matter of repression, th'
= small amount of SCOT is one of the fea
lures of the Chapman producer which
results from the unique method of fue
feed. The Chapman company has or
ganized method of burning the 500
in the fiues without opening up thu
doors of the hues, as in the usua
Sunday "burn-outs." This is dom
Z by means OF an air blast introduces
at regularly spaced intervals alonI