Improvements in or connected with the Manufacture of Malt, and in Malt Houses for Treating same.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with the Manufacture of Malt, and
in Malt Houses for Treating same.
I, FRANCIS COLLEY, of Tadcaster near Leeds in the County of York Maltster do
hereby declare the nature of this invention to be as follows:-
The object of my invention is to so improve the construction of malt houses that
the malt to be prepared is partially dried prior to placing it on the floor of the
kiln, thus preventing the formation of mould, and lessening the time required for
treatment on the kiln.
In malt houses at present in use, the grain is grown on the floor or floors of
a malt house for a period of about ten to fourteen days, and then, when the required
amount of growth has been effected, the said malt is transferred to the floor of
a kiln, where it remains subject to a suitable heat for about four days, when it is
completely dried and ready for removal. This process renders the malt liable to
become mouldy, and owing to the length of time occupied on the kiln, the output
is slow.
According to my invention, I employ the ordinary growing floor, and at the end
of same farthest from the cistern, I provide a perforated floor having a room or
cellar below same running the full width of the malt house. A rotary fan or other
means is provided for forcing air into the room below the perforated floor, and the
temperature of the said air may be regulated by a furnace connected to the fan,
or by other suitable means. An air-tight door communicates with the room for
The depth of
the purpose of giving access for cleaning or for other purposes.
the room is preferably sufficient for a man to enter and move without difficulty;
and the large size of this room enables the forced air to become equalized, and
to rise at a regular and even rate through the perforated floor.
The grain is vegetated on the growing floor or floors in the ordinary way,
until it has reached the end of the said floor or floors. It is then distributed
over the perforated drying floor, where it remains under treatment from the
forced draught, until it is deemed sufficiently dry for removal to the kiln, which
preliminary drying operation effectually prevents the formation and development
of mould.
The time occupied by the malt on the kiln floor is considerably less than has
hitherto been necessary as owing to the preliminary operation above described,
the malt is withered more effectually than heretofore. This affords a considerable
saving, as the kiln can give a much larger output than when one charge of malt
requires to remain on the kiln for a very long time, and the kiln can thus be
employed for drying barley previous to storing.
SML 1908
BREWER & SON,
Loudon and Leeds, Agents for Applicant.

page_text: Improvements in or connected with the Manufacture of Malt, and
in Malt Houses for Treating same.
I, FRANCIS COLLEY, of Tadcaster, near Leeds, in the County of York, Maltster,.
do hereby declare the nature of this invention 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 my invention, is to so improve the construction of malt houses,
that the malt to be prepared is partially dried prior to placing it on the floor of
the kiln, thus preventing the formation of mould, and lessening the time required
for treatment on the kiln.
In malt houses at present in use, the grain is grown on the floor or floors of the
malt house for a period of from ten to fourteen days, and then, when the required
amount of growth has been effected, the said malt is transferred to the floor of
a kiln, where it remains subject to a suitable heat for about four days, when it is
completely dried and ready for removal. This process renders the malt liable to
become mouldy, and owing to the length of time occupied on the kiln, the output
is slow.
In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawing in which similar letters refer to
like parts in both figures.
Fig. 1 is a sectional elevation, and Fig. 2 is a sectional plan on line X Y Fig. 1,
shewing a portion of a malt house constructed according to my invention.
A is an ordinary growing floor of a malt house, and B is the cistern for soaking
the grain. C is a perforated floor having a room or cellar D situated below
same, and the depth of the said room D is preferably sufficient for a man to enter
and move about without difficulty. E is a room situated next to the room D,
and FF are openings which form communications between the said rooms.
GG are fans, which are driven by belt gearing H from a steam or other
suitable motor (not shewn in the drawing). J J are openings in the outer wall of
the room E for the purpose of admitting air to same, and steam or other coils K
are provided for the purpose of heating or cooling the air, entering the said room,
to the required degree.
Lis an air tight door which communicates with the room D for giving access
for cleaning and for other purposes.
After the grain has been removed from the tank B, it is vegetated on the
growing floor A in the ordinary way, until it has reached the end of the said
Hoor and is adjacent to the perforated floor C. It is then distributed over the
said perforated floor C, and the fans G, G are set in motion through the medium
of the belt gearing H. These fans G, G draw air through the openings J, J
and force same through the openings F, F into the room D, and the large size of
this room allows the forced air to become equalized and to rise at a regular rate
through the perforated floor and through the material distributed thereon. The
grain on the perforated floor C remains under treatment from the forced draught
until it is deemed sufficiently dry for removal to the kiln, and the drying process
may be regulated by raising or lowering the temperature of the coils K, K thus
causing hot or cold air to be forced into the room D and through the grain on the
perforated floor C, as desired.
Owing to the preliminary operation above described, the time occupied by the
malt on the kiln is considerably less than has hitherto been necessary, and the malt is
withered more effectually than heretofore. This affords a considerable saving, as
a kiln can give a much larger output than when one charge of malt requires to

page_text: remain on the kiln for a very long time, and the kiln when not required for drying
malt, may be employed for drying barley previous to storing.
As seen at Fig. 1, two growing floors A and A' are employed, and the upper
floor A¹ is provided with outlets or doors M through which the malt may be passed
and fed onto the perforated floor C below same, thus enabling the perforated floor C
to treat the malt from the two growing floors A and A'. Although I have.
described the coils K, K as being employed for heating the air supplied to the
room D below the perforated floor C, I do not confine myself to this method of
heating, as any air heating apparatus could suitably be employed for the same
purpose.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. The perforated floor C having a room D below same, in combination with.
a suitable air compressing apparatus, substantially as and for the purposes set forth..
2. The combination of the growing floor A, tank B, perforated floor C, room D,
and fans G, substantially as and for the purposes set forth.
3. The general arrangement, construction, and combination of the various parts
forming my invention for improvements in or connected with the manufacture of
malt, and in malt houses for treating same, substantially as and for the purposes
set forth.
4. The method and manner of treating malt, substantially as and for the purposes.
set forth.