IMPROVE- MENTS IN BLAST FURNACES
Year: 1882

page_text: LETTERS PATENT to Joseph Cliff, of Frodingham, and Joshua Horton Dawes,
of Messingham, both in the County of Lincoln, for an Invention of "IMPROVE-
MENTS IN BLAST FURNACES."
PROVISIONAL SPECIFICATION left by the said Josoph Cliff and Joshua
Horton Dawes at the Office of the Commissioners of Patents on the
27th January 1882.
JOSEPH CLIFF, of Frodingham, and JOSHUA HORTON DAWES, of Messingham,
both in the County of Lincoln. IMPROVEMENTS IN BLAST FURNACES.
The Invention has for its object improvements in blast furnaces and relates to
the application thereto of improved means to facilitate the correct charging
thereof.
For this purpose I place a plate or a series of plates of iron, steel or other
suitable material opposite the openings where the furnace is charged in such a
position as to receive the charge as it leaves the barrows and distribute it equally
around the furnace, the bulk of the mine being capable, by this arrangement, of
being equally distributed in a concentric circle at any given or desirable distance
from the centre of the furnace.
The said plate or plates may be of any suitable section to obtain the desired
results, but in practice it is found desirable to havo it in the shape of a circle or
part of a cone placed at any given and suitable distance from the tipping ring and
of such a depth as will suffice to meet the charge as it is tipped into the furnace
and direct it as required. It is suspended firmly in this position and may be either
vertical or inclined inwards or outwards that is to say it may form part of a hollow
cone having the larger end thereof upwards or downwards according as it is
desired to place the material nearer to or further from the centre of the furnace.
By these means a greater regularity than usual is obtained in the charging of

page_text: the furnaces, as whether the furnace be kept quite full, or allowed to get partially
down the charge is always put into the furnace in the required position.
The Invention also conduces very much to the taking off from the furnace of the
greatest possible quantity of the waste gases for use in the stoves, under the
boilers and for other purposes, it also effects a considerable saving in the quantity 5
of fuel required to smelt any given quantity of ore, and gives an increased make to
the furnace; it also reduces to a minimum the probability of "scaffolding" or
banging of the burden in the furnace.
In addition to all the above improvements, it retains all the advantages of the
open topped furnace, allowing the unimpeded escape of the moisture and surplus 1
gases and does not in any way make the furnace less of an open topped one.

page_text: the furnace; it also reduces to a minimum the probabilty of "scaffolding” or
hanging of the burden in the furnace.
In addition to all the above improvements it retains all the advantages of the
open topped furnace, allowing the unimpeded escape of the moisture and surplus
gases and does not in any way make tho furnace less of an open topped one.
Having thus described tho nature of our said Invention and the mode in which
we carry the same into effect, we would have it understood that what we claim is
the employment in the throats of blast furnaces of a plate or plates & substantially
as berein shown and described and for the purpose stated.
In witness whereof we the said Joseph Cliff and Joshua Horton Dawes have
hereunto set our hands and seals this Seventeenth day of July in the year
of our Lord One thousand eight hundred and eighty two.