IMPROVEMENT IN THE MEANS OF AND APPARATUS FOR CONSUMING COAL AND OTHER FUEL FOR HEATING PURPOSES
Year: 1881

page_text: LETTERS PATENT to Edward Kaulbach, C.E., of 125, Gray's Inn Road,
London, Gent"., for an Invention of "IMPROVEMENT IN THE MEANS OF
AND APPARATUS FOR CONSUMING COAL AND OTHER FUEL FOR HEATING
PURPOSES."
PROVISIONAL SPECIFICATION left by the said Edward Kaulbach at the
Office of the Commissioners of Patents on the 27th August 1881.
EDWARD KAULBACH, C.E., of 125, Gray's Inn Road, London, Gent". " IMPROVE
MENT IN THE MEANS OF AND APPARATUS FOR CONSUMING COAL AND OTHER
FUEL FOR HEATING PURPOSES."
I construct a closed metal box or cage with open spaces all round for the
admission of air. The said metal box or cage may be made of any shape,
according to taste, requirement, or convenience. At the bottom of the said metal
box or cage is a pen, the walls of which are also furnished with open spaces all
round, and may be made any height, but usually not more than two and a half
to four inches. This pen occupies the middle of the said bottom, so as to leave a
free space all round it. The bottom of the aforesaid box or cage is made so as to
open easily. The pen has no bottom of its own, but is supported by bars affixed
to the sides of the box or cage, so that when the bottom of the box is open the
walls forming the pen retain their original position. The aforesaid metal box or
cage is supplied with two trunnions, whose axes pass through its centre of gravity
in order that it may be perfectly balanced. Each trunnion is furnished at its
extremity with a pinion that runs on a rack. These racks rest on a couple of
upright supports. To prepare the fire the position of the cage is reversed, so that
the bottom becomes the top. The fuel is then introduced, and the ignition is made
to take place from the top and burn downwards. When the whole is well lighted
fresh fuel is put into the pen, and the box or cage is restored to its normal position.
I also use a reflector.

page_text: "
SPECIFICATION in pursuance of the conditions of the Letters Patent, and
of an Order of the Lord Chancellor, filed by the said Edward Kaulbach in
the Great Seal Patent Office on the 10th March 1882.
EDWARD KAULBACH, C.E., of 125, Gray's Inn Road, London, Gentleman.
IMPROVEMENT IN THE MEANS OF AND APPARATUS FOR CONSUMING COAL AND
OTHER FUEL FOR HEATING PURPOSES."
This Invention of "Improvement in the Means of and Apparatus for Consuming
Coal and other Fuel for Heating Purposes" consists,―
1st. In an iron grate or closed box with open spaces on all sides for the admission
of air.
2nd. The said grate or box may be of any shape, according to taste, or the
nature of the place it is intended to occupy.
3rd. The bottom of the said grate or box is made to open freely by means of a
sliding or hinged lid (see Fig. 3, where it is shown half open).
4th. The said grate or box is supported by two trunnions (a), one on each side,
whose axes are in a line with its centre of gravity in order that it may be in
perfect equilibrium.
5th. The said trunnions rest upon two metal supports or carriages furnished
with rollers, which travel on a couple of rails, one on either side, so that the
aforesaid grate or box is freely suspended, and may be brought forward or pushed
back, or by a bascule movement be immediately reversed, so that the bottom shall
become the top.
6th. In order to secure the said grate or box in a vertical position I supply one
or both of the trunnions with two teeth placed diametrically opposite to each other
and in the vertical plane, and which fit into a corresponding metal groove or catch
attached to the carriage by means of a spring (b); but I do not confine myself
to this particular arrangement, but reserve the right of modifying it in case of
need.
7th. In order to light the fire the normal position of the grate is reversed, that
is to say, that the bottom with the lid is brought to the top. Fuel is then intro-
duced and lighted from the top, so that the coal burning downwards the smoke
and gases disengaged_by_the-heat-pass-through the ardent fuel and are there
consumed, instead of escaping into the apartment and the atmosphere. The said
grate or box is kept in this position until the whole mass has become incandescent.
The lid is then opened, the requisite quantity of fresh coal is introduced, the lid
is closed, and by a bascule movement as before the grate is instantly brought back
to its normal position, that is, with the lid at the bottom.
Having thus clearly described my Invention, and the mode of carrying it out, I
declare that I do not restrict myself to the precise details as above indicated or
represented in the Drawings hereto attached, which may be modified without in
any way departing from the principle of my Invention.
What I claim therefore as my own is a receptacle.with open air-spaces all round
supported by trunnions resting on carriages running on rails, as above described,
so that it may be susceptible of a forward or backward movement, or of being
reversed at pleasure, the object of which arrangement is to obtain perfect com-
bustion without smoke.
In witness whereof, I, the said Edward Kaulbach, have hereunto set my
hand and seal, this Tenth day of March, in the year of our Lord One
thousand eight hundred and eighty two.