A METHOD OF HEATING GAS GENERATORS IN STEAM BOILER FURNACES
Year: 1884

page_text: JOHN SINCLAIR 16 James Place Govan County of Lanark Engineer do hereby
declare the nature of my invention for "A METHOD OF HEATING GAS GENERATORS
IN STEAM BOILER FURNACES" to be as follows:-
An oval or round double shelled Boiler, containing tubes as shown per drawing;
the double shell is pierced through and liued so as to form a support for the Gas
producer; the horizontal producers can be revolved by hand at pleasure, the object
of this is to heat producers all over and extract the Gas much better. They may
be withdrawn at any time in case of accident or for replacement. Perpendicular
producers are inserted from top passing through external and internal tube plates
lined of course same as horizontal and passing through furnace bars, they are sealed
by their own weight or screw purchase. They are charged from the top and sealed,
the Gas is exhausted at top and can also be withdrawn at pleasure by spectacle
glands (G) with pipe and shackle arrangements. The methods of revolving and
withdrawing (H) are contained in figure (B) with stuffing gland. Figures (EE)
and (F F) show section and plan of vertical and horizontal Generators. Figure (D)
shows split section of (B) and tubes as shown in figure (G). Figure (G) is plan of
water space. Figure (B) contains horizontal and vertical producers, likewise broken
section of Funnel. The benefit to be derived from this system, is, that the smoke or
Gas is thoroughly utilized and the coals after doing duty in Generators must be
withdrawn and can be again used in a boiler furnace for heating Generators and
water simultaneously. The vertical producers can be withdrawn by tackle attached
to spectacle gland gear in order to allow coke discharge beneath furnace bars. The
Producers may be made of steel metal, copper, or Fire clay.
"The object of the whole application is to abate the smoke nuisance, and for
beating feed water, also illuminating sea going vessels and land works, likewise for
reducing the consumpt of fuel per hour to a minimum."

page_text: I, JOHN SINCLAIR, Engineer, 16 James Place Govan, in the County of Lanark
do hereby declare the nature of my invention for "A METHOD OF HEATING
GAS GENERATORS IN STEAM BOILER FURNACES," and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:―
The invention may be described in detail as the common double shell Boiler and
may contain horizontal and vertical tubes as figure (A,) section plan of tubes (a);
figure (A) is embrazured at points (a a) thus making both shells intact and forming
a seat for both ends of the Generators as (bb). The furnace door (b) is placed
between embrazures (a a), this is the working front, namely, for charging and
withdrawing. The horizontal Generators when made of fire-clay should have a
mouth-piece made of wrought iron or metal fixed on at (b b), and faced so as to
make a close joint when sealed. The scaling disc at (a a) consists of two upright
rods (c) stepped into, loosely, the eye studs (c c); these studs are tapped into the
face fixed on at (b b), below the centre at (a a). This gives a central thrust for
sealing screw (d); the rods also allow for the raising and lowering of sealing disc.
At the exhausting end of the Generator or nozzle at (B), a pinion is bolted, its
centre being made deep enough for an ordinary stuffing box into which the nozzle
pipe is inserted, thus allowing for revolving. At point (H) a cock is fitted which
must be turned off when a charge is to be withdrawn and opened after having
charged and sealed the apparatus. The Journal of Generators (D), at this point a
double or spectacle gland embraces both Generators, and on this gland is cast a
bracket for the worm revolving gear (C) and drawing rack (E), or (chain tackle),
this allowing for accident or for replacement.
The using boiler (F) is of the same construction as figure (A) minus the
embrazures, plan section of tubes (f) and may be worked together or separately
with figure (A). Directly above furnace door (ff) is inserted a circular tuyere in
halves (I), the tuyere is made of fire. clay and perforated as shown in drawing,
resting on an angle iron Girder and supported round the internal wall of Boiler.
Into this tuyere the Gas exhausts, being joined by the Air Blow' pipe (G) and is
consequently consumed in the furnace. When the system is applied as a feed
heater, the application is made with vertical Generators as shown at figure (K)
having embrazures to render intact internal and external tube plates into which the
...vertical Generators are inserted and passes down just flush with under side of
furnace bars. Here a fire clay hollow block is placed into which the end of
Generator dips, this seals the discharging end. The spectacle Gland (M) embraces
both Generators at (m), and the gas exhausts through the pipe into the faucet
cock (L), into the tuyere in same manner as shewn in the horizontal arrangement.
A chain is used in this case for raising the Generators to discharge coke into
furnace; this is effected by passing a chain round a loose grooved pulley overhead
and affixing a counter balance weight, the other end made fast to a shackle at
point (n). The same method of sealing is used as in horizontal, (this being also the
charging point), this is done by inserting the eye studs at point (m) where Gland
divides. Being used as a feed heater with large Boilers, there is therefore no need
for a steam receiver as shewn at point (o) in figure A the producing Boiler, in this
case are all made the same height keeping them lower than water level in large
Boilers and thereby keeping the ends of tubes wet.
To work the system either as a feed heater or Boiler, have the Generators in
their respective positions and light fires in the usual way with crude fuel (i.c) in

page_text: producing furnaces and wing furnaces, bringing the temperature of the Generators
to a bright red heat, then charge and seal, opening the exhausting cock instantly,
allowing some time to elapse before charging the remaining one. By charging
alternately, this allows of the assimilating of dense and weak gases. When drawing,
close the cock and slacken sealing screw gently, thus allowing the gas to ignite at
mouthpiece. Draw and throw on the hot coke as required into producing and wing
boiler furnaces. A supply may be taken off and treated in the manner already
known in modern Gas practice and used for illuminating purposes.
"
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I.
The method of generating gas by inserting into steam boiler furnaces either
vertically or horizontally, retorts from which the gas is led into the furnace and
burnt, substantially as hereinbefore described.