IM- PROVEMENTS IN APPARATUS TO BE USED IN MASHING GRAIN AND OTHER MATTERS, AND IN HEATING WATER AND OTHER LIQUIDS BY MEANS OF STEAM
Year: 1876

page_text: LETTERS PATENT to David Brodie, Manager of Messrs. James Stewart & Co.'s
Distillery, Saucel, Paisley, Renfrewshire, Scotland, for the Invention of "IM-
PROVEMENTS IN APPARATUS TO BE USED IN MASHING GRAIN AND OTHER
MATTERS, AND IN HEATING WATER AND OTHER LIQUIDS BY MEANS OF STEAM."
ealed the 21st July 1876, and dated the 8th February 1876.
PROVISIONAL SPECIFICATION left by the said David Brodie at the Office
of the Commissioners of Patents on the 8th February 1876.
DAVID BRODIE, Manager of Messrs. James Stewart & Co.'s Distillery, Saucel, Paisley,
Renfrewshire, Scotland. "IMPROVEMENTS IN APPARATUS TO BE USED IN MASING
GRAIN AND OTHER MATTERS, AND IN HEATING WATER AND OTHER LIQUIDS BY MEANS
OF STEAM."
This Invention has for its object improvements in apparatus to be used in.
mashing grain and other matters, and in heating water and other liquids by means
of steam.
At the present time in mashing grain for the purpose of distillation a vat con-
taining a rotating stirrer or mixer with hollow arms, through which steam is passed
is sometimes employed, and the reaction of the steam escaping from nozzles at the
ends of the arms causes the rotation of the stirrer or mixer.
In order to prevent the noise and vibration which is now experienced in working
this apparatus, I apply to each of the nozzles a shield or guard, such as is shown in
annexed sectional sketch. This shield or guard, by directing a rapid current of
water past the orifice from which the steam issues, causes the condensation to take
place regularly and without noise.
The guard or shield is made to screw on to the nozzle and can be readily removed
should it become choked with the grain.
A similar shield or guard may be applied to other nozzles through which
steam is blown into water or other liquid for the purpose of heating the same.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said David Brodie in the Great Seal Patent Office on the 5th August
1876.
DAVID BRODIE, Manager of Messrs. James Stewart & Co.'s Distillery, Saucel,
Paisley, Renfrewshire, Scotland. "IMPROVEMENTS IN APPARATUS TO BE USED IN
MASHING GRAIN AND OTHER MATTERS, AND IN HEATING WATER AND OTHER LIQUIDS
BY MEANS OF STEAM."
This Invention has for its object improvements in apparatus to be used in
mashing grain and other matters, and in heating water and other liquids by means
of steam.
At the present time in mashing grain for the purpose of distillation a vat con-
taining a rotating stirrer or mixer with hollow arms, through which steam is
passed is sometimes employed, and the reaction of the steam escaping from nozzles
at the ends of the arms causes the rotation of the stirrer or mixer.
In order to prevent the noise and vibration which is now experienced in working
this apparatus, I apply to each of the nozzles a shield or guard, such as is shown
in annexed sectional sketch. This shield or guard, by directing a rapid current of
water past the orifice from which the steam issues, causes the condensation to take
place regularly and without noise.
The guard or shield is made to screw on to the nozzle, and can be readily
removed should it become choked with the grain.
A similar shield or guard may be applied to other nozzles through which steam
is blown into water or other liquid for the purpose of heating the same.
In order that my said Invention may be most fully understood and readily
carried into effect, I will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a plan, and Figures 2 and 3 are transverse sections of an apparatus
for mashing grain constructed according to my Invention. In the centre of a vat
a hollow shaft a is erected; it is supported at the bottom on the foot step a¹³, and
at the upper end it is held in a stuffing box at a², so that it is able to rotate freely.
Steam can be admitted to the hollow shaft by the pipe b, and water by the pipe c.
The shaft can be driven when necessary by means of the axis & and the bevilled
gearing d; e, e, are hollow arms radiating from the shaft a; they terminate in
nozzles f,f, of peculiar construction; g, g, are chains attached to the arms e, e, for
the purpose of agitating the contents of the vat as the shaft a revolves.
Figure 4 shows to an enlarged scale a longitudinal section of one of the nozzles;
it is provided as will be seen with with a shield or guard e¹, so arranged that tho
rush of steam through the nozzle induces a rapid stream of water past the orifice,
and the condensation consequently takes place with rapidity and without noise.
Figure 5 is an end view of the nozzle with the guard removed.
In some cases I apply a ball valve to prevent possibility of back flow through
the orifice; this arrangement shown at Figure 6. So long as steam is admitted
by the pipe b or water by the pipe c, the rotation of the shaft a will be automatic;
but at other times, when it is desired to agitate the contents of the vat, the shaft is
turned by means of the gearing.
Figure 7 is a section of a brewing tank, it is shown fitted with four noiseless
steam heaters; h and i are apparatus for heating the water befor it enters the tank;
separate cocks are provided to regulate the supply of steam and water, so that the
water can be heated to any temperature desired; and are nozzles for imparting
more heat to the water already in the tank and for agitating the contents.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I claim,-
The construction of apparatus to be used in mashing grain, substantially as herein
described.

page_text: I also claim the means of heating water and other liquids by steam without
noise by the application to the steam nozzle of a shield or guard e¹, substantially as
described.
In witness whereof, I, the said David Brodie, have hereunto set my hand and
seal, this 27th day of July, in the year of our Lord One thousand eight
hundred and seventy-six.
DAVID BRODIE. (L.S.)