MORE PERFECTLY CONSUMING SMOKE IN FURNACES CONNECTED WITH STEAM BOILERS
Year: 1885

page_text: WILLIAM ARMITAGE 94 Broad Oaks Attercliffe, Sheffield in the County of York
Engineer do hereby declare the nature of my invention for MORE PERFECTLY
CONSUMING SMOKE IN FURNACES CONNECTED WITH STEAM BOILERS to be as
follows:-
In carrying out my invention into practice, I make an open box, or frame, which
may be of a parralel circular or other form, and of any size or demensions required
across the open space of this box or frame are placed a series of bars of any desired
form, the ends of the bars are made to fit into holes arranged for the purpose in the
box or frame and in such a manner that they will move easily when the bars are in
position, the edges slightly over lap each other having an appearance similar to a
venetion window blind a cylinder containing a piston or plunger, is placed in any
convenient position, so that when the piston or plunger is raised in the cyliner the
piston rod (or other contrivance) acts upon a camm or lug projecting from the
surface of the bars raising them to a position at right angles (or nearly) to that
occupied when closed and forming a number of open spaces for the admission of air
into the furnaces, the bars are held in this position by a catch fixed in any con-
venient way, when the piston is raised a valve is raised admitting air into the
cylinder, when the piston is in its raised position the valve closes a regulating tap
or valve allows the air to escape from the cylinder letting the piston by its own
weight fall gently to the bottom at the same time relieving the catch when the
bars fall in a closed position preventing the further admission of air into the
furnace the regulating tap or valve may be set so as to allow the air to excape
from the cylinder more or less slowly, and so keep the bars in an open position for
a longer or shorter period as circumstances may require the apparatus is attached
to the furnace door by means of bolts or revits (or in any other suitable way) the
centre of the door being removed to admit air into the furnace or the open box or
frame may be made as part of the furnace door and the other portions attached to
it, this improved apparatus requires no attention being automatic or self acting.
Deted this 28th day of October 1885

page_text: the Fuel.
I, WILLIAM ARMITAGE, of 94 Oaks Green Attercliffe, Sheffield, in the County of
Yorkshire, Engineer do hereby declare the nature of my invention for IMPROVED
APPARATUS FOR SUPPLYING AIR TO FURNACES ABOVE THE FUEL and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
The object of this invention is to more effectually consume smoke in furnaces
connected with steam Boilers, also to ensure the more perfect combustion of fuel,
and thereby effecting a considerable saving.
In carrying out my invention into practice an open space is made in the furnace
door which may be of a parrallel, circular, or other form, & of any suitable size
required, over the open space in the door I fix a louver panel, to which is attached
a cylinder, containing a piston or plunger, & so arranged that when the piston or
plunger is raised in the cylinder a prop or stud acts upon the cam or lug projecting
from the surface of the louver bars, thereby raising them to an horizontal open
position, and forming a number of open spaces for the admission of air into the
furnace as shewn in the accompanying drawings Fig. 1-The louvers are held in
this position by a spring catch which releases & close the louvers upon the piston
reaching the bottom of the cylinder as shewn in Fig. 2-A regulating valve is
fitted in the piston for letting the piston by its own weight fall gently.to the
bottom of the cylinder, a valve is also fitted into the bottom of the cylinder to
admit air when the piston is being raised.
The piston is raised by means of a leaver, or beam, working over a fulcrum, as
shewn in drawings.
Having now particularly described and ascertained the nature of my said
Invention & in what manner the same is to be performed I declare that what
I claim is :-
1st The manufacture, use or application of a louver panel for admitting air to
furnaces above the fuel.
2nd Opening & shutting the said louvers by means of a piston working in an air
cylinder.
3rd For regulating Valve or Tap for governing the speed of the piston in
decending the cylinder & thereby shutting the louvers at any desired time.
4th For acting leaver or beam, working over a fulcrum as a means of raising the
Piston & also releaving the louvers in descending substantially as herein before
described and illustrated.
Dated this 29th day of July 1886.
JOHN I. HEMMINGWAY,
Agent for the Applicant.