IMPROVEMENTS IN CASES OR APPARATUS FOR DRYING MOULDS
Year: 1866

page_text: LETTERS PATENT to Matthew Hodgson Lishman and Edward Chambers,
both of Stockton-on-Tees, in the County of Durham, Engineers, for
the Invention of "IMPROVEMENTS IN CASES OR APPARATUS FOR DRYING
MOULDS."
Sealed the 20th July 1866, and dated the 24th January 1866.
PROVISIONAL SPECIFICATION left by the said Matthew Hodgson
Lishman and Edward Chambers at the Office of the Commissioners
of Patents, with their Petition, on the 24th January 1866.
We, MATTHEW HODGSON LISHMAN and EDWARD CHAMBERS, both of
Stockton-on-Tees, in the County of Durham, Engineers, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN CASES OR.
APPARATUS FOR DRYING MOULDS," to be as follows:-
Hitherto it has been usual to make the drying case which encloses the
drying moulds movable and to lift it out of the pit every time the moulds
have to be taken out. Now this Invention consists in making the drying
case a fixture, and in furnishing it with doors at the front or other con-
venient part, so that when required the doors may be opened and the
moulds taken out without lifting the case. The plate which supports the
moulds at the bottom is made movable and is dropped inside its frame
so as to rest upon the bricks which form the flues. When the flues require
repair or alteration this plate is removed, and the case need not be inter

page_text: fered with. We cast or form studs on the plate frame to support the case,
a space being left between each stud and that next adjoining to it for the
admission of air to feed the flame which passes through holes in the plate.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Matthew Hodgson Lishman and Edward Chambers
in the Great Seal Patent Office on the 24th July 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MATTHEW
HODGSON LISHMAN and EDWARD CHAMBERS, both of Stockton-on-Tees, in
the County of Durham, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of January, in the year of
our Lord One thousand eight hundred and sixty-six, in the twenty-ninth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said Matthew Hodgson Lishman and Edward
Chambers, Her special licence that we, the said Matthew Hodgson
Lishman and Edward Chambers, our executors, administrators, and
assigns, or such others as we, the said Matthew Hodgson Lishman
and Edward Chambers, our executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and law-
fully, might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVEMENTS IN CASES OR APPARATUS FOR DRYING
MOULDS," upon the condition (amongst others) that we, the said Matthew
Hodgson Lishman and Edward Chambers, or one of us, our executors or
administrators, by an instrument in writing under our, or one of our, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that we, the said Matthew Hodgson Lishman and
Edward Chambers, do hereby declare the nature of our said Invention,
and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement thereof,
reference being had to the Drawings hereunto annexed, that is to say :-

page_text: Hitherto it has been usual to make the drying case which encloses the
drying moulds movable and to lift it out of the pit every time the moulds
have to be taken out. Now this Invention consists in making the drying
case a fixture and in furnishing it with doors at the front or other con-
venient part, so that when required the doors may be opened and the
moulds taken out without lifting the case. The plate which supports
the moulds at the bottom is made movable and is dropped inside its frame
so as to rest upon the bricks which form the flues. When the flues require
repair or alteration this plate is removed, and the case need not be inter-
fered with. We cast or form studs on the plate frame to support the case,
a space being left between each stud and that next adjoining it for the
admission of air to feed the flame which passes through holes in the plate.
Figure 1 of the accompanying Drawings is a plan, and Figure 2 an end
elevation of an apparatus for drying moulds constructed according to our
Invention; Figure 3 is a horizontal section of the same on a larger scale;
Figures 4, 5, 6, and 7, are sections through the lines a, a, b, b, c, c, and d, d;
respectively of Figure 3.
A, A, are a pair of cases placed side by side in an ordinary pit; each
of these cases A is made a fixture in the pit instead of being movable as
they have hitherto been. B, B, are doors at the front of the cases A, by
means of which access is gained to the moulds, so that they may be taken
out when required without lifting the cases; these doors may be fitted
either in the manner shown or in any other convenient manner C is a
portable fire-box which is connected and disconnected to and from the
sockets of the pipes D of each case A, according to requirement. The
pipes D are for the purpose of conducting the flame and other products of
combustion from the fire-box C to the flues E at the bottom. The fire-
box may, if preferred, be placed at the bottom of the apparatus or of the
pit; in this case the pipes D will not be necessary. From the flues E the
products pass through apertures F in the plate G, up the centre of or
round each mould. The plate G which supports the moulds at the bottom
is made movable and is dropped inside its frame so as to rest upon the
bricks which form the flues E. When these flues require repair or altera-
tion this plate G can, as before stated, be removed so that the case A need
not be interfered with. Upon the plate frame H we cast or form studs I, I,
to support the cases A which are fixed to them, a space being left as shown
between each of these studs and that next adjoining it for the admission of
air to feed the flame which passes through the apertures F in the plate G.

page_text: Pipes lead from the tops or covers of the cases A to a chimney or uptake
which carries off the products of combustion.
And having now described the nature of our said Invention and in what
manner the same is to be performed, we declare that we claim as our
Improvements in Cases or Apparatus for Drying Moulds :-
First, making the drying case a fixture and furnishing it with doors,
substantially as herein-before described and represented in the accom-
panying Drawings, so that the moulds may be removed without lifting the
case.
Second, making the plate which supports the moulds at the bottom
movable, substantially as herein-before described and represented in the
accompanying Drawings, so that it can be taken out and the flues
repaired or altered without moving the case.
Third, constructing the plate frame with studs to support the case,
substantially as herein-before described and represented in the accom-
panying Drawings, spaces being left between the studs for the purpose
herein-before explained.
In witness whereof, I, the said Matthew Hodgson Lishman, for
myself and on behalf of the said Edward Chambers, have here-
unto set my hand and seal, this Twenty-first day of July, One
thousand eight hundred and sixty-six.
M. H. LISHMAN. (L.S.)