Improvements in Drying and Calcining Brewers' Refuse and Grains and other Substances and Materials.
Year: 1891

page_text: Date of Application, 31st Oct., 1891
Complete Specification Left, 27th July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Drying and Calcining Brewers' Refuse and Grains
and other Substances and Materials.
I, EDWARD BARLOW, of 26 Fountain Street, Manchester in the County of
Lancaster, Smallware Manufacturer, do hereby declare the nature of this invention
to be as follows:-
My present invention relates to improvements in the invention for which Letters
Patent numbered 12535 dated August 11th, 1890 were granted to me and to
Richard Cunliffe for "Improvements in apparatus for drying, calcining, and
evaporating substances or materials such as town's refuse, brewer's refuse and
grains, spent dye wood and the like."
The aforesaid apparatus in its essential features consists of a cylinder rotating
within a casing or jacket and heated by a furnace. The brewer's refuse or grains
or other substances are placed within the rotating cylinder and there dried or
calcined by the heat of the furnace. An exhaust fan in communication with the
interior of the cylinder is also employed for the purpose of extracting the vapour
or gases arising from the heated materials in course of calcination.
My present improvements consist in supplying hot air to the interior of the
cylinder during the drying or calcining process. I find that this has the effect of
preventing the "caking" and burning of the materials and so a better and more
marketable product is obtained.
It is obvious that any suitable means for heating the air and for supplying it to
the cylinder may be employed.
Dated this 30th day of October 1891
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Drying and Calcining Brewers' Refuse and Grains
and other Substances and Materials.
I, EDWARD BARLOW, of 26 Fountain Street, Manchester, in the County of
Lancaster, Smallware Manufacturer, 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:---
My present invention relates to improvements in the invention for which
Letters Patent numbered 12535 dated August 11th, 1890 were granted to me and
to Richard Cunliffe for "Improvements in apparatus for drying, calcining, and
evaporating substances or materials such as town's refuse, brewer's refuse and grains,
spent dyewood and the like."
The aforesaid apparatus in its essential features consists of a cylinder rotating
within a casing or jacket and heated by a furnace. The brewer's refuse or grains
or other substances are placed within the rotating cylinder and there dried or
calcined by the heat of the furnace. An exhaust fan in communication with the
interior of the cylinder is also employed for the purpose of extracting the vapour
or gases arising from the heated materials in course of calcination.
My present improvements consist in supplying hot air to the interior of the
cylinder during the drying or calcining process. I find that this has the effect of
preventing the "caking" and burning of the materials and so a better and more
marketable product is obtained.
•

page_text: One such arrangement according to my invention is shown on the accompanying
sheet of drawings forming part of this Specification and in which Figure 1 is a side
elevation partly in section. Fig. 2 an end sectional elevation and Fig. 3 an end
elevation of the aforesaid patented apparatus fitted with means for heating air and
supplying it to the cylinder according to my present improvements.
In these views, a designates the rotating cylinder which is supported on the
pulleys and is enclosed in the casing or jacket c. Inside the cylinder a and
concentric therewith is the perforated suction pipe d which is carried by the
cylinder ends, and is in communication with an exhaust fan e. The front end of
the cylinder a is removable and is secured by bolts, and in it is formed a manhole
(or two if required) closed by a door g through which the cylinder is charged and
emptied. Below the cylinder a is the furnace h by which it is heated in order to
calcine the substances placed therein.
All the above parts are substantially of the same construction and are arranged
and operate in the manner described in the Specification to the aforesaid Patent.
The parts which embody my present improvements consist of a perforated pipe i
which is fitted within the perforated pipe d and is secured thereto by nipples or
ferrules which thus form a means of communication between the pipe and the
interior of the cylinder a. Above the cylinder a and within the casing is a pipe k
leading from a fan or blower and at the other end connected by a stuffing box
connection to one end of a pipe which is similarly connected at the other end to
the pipe i.
In operation the air blown through the pipe & by the fan or blower / gets highly
heated by the hot gases from the furnace, and the air thus heated passes through
the pipe m into the pipe and thence through the ferrules j into the interior of
the cylinder a as indicated by the arrows Fig. 1.
I wish it to be clearly understood that I do not limit myself to the arrangement
herein described and illustrated by the drawings as any other suitable means for
heating the air and for supplying it to the cylinder may be employed.
I have described the furnace below the cylinder a as an essential feature of the
apparatus; but in some cases the furnace may be dispensed with and the drying
process effected by means of hot air alone introduced to the interior of the cylinder
such air being heated by a separate furnace or generator.
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 combination with the aforesaid patented apparatus having the essential
features specified, of means for supplying heated air to the interior of the rotating
cylinder.
2. The combined arrangement of parts constituting means for carrying my
improvements into effect substantially as herein described with reference to the
accompanying drawings.
Dated this 26th der of Tul., 1905
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.