IMPROVEMENTS IN THE PRODUCTION OR MANUFACTURE OF FLOUR
Year: 1853

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn
Fields, in the County of Middlesex, and of Glasgow, North
Britain, Gentlenian, for the Invention of "IMPROVEMENTS IN THE
PRODUCTION OR MANUFACTURE OF FLOUR."-A communication from
Moncious Buino
Sealed the 14th November 1858, and dated the 24th June 1855.
PROVISIONAL SPECIFICATION left by the said John Henry Johnson
at the Office of the Commissioners of Patents, with his Petition,
on the 24th June 1853.
I, JOHN HENRY JOHNSON, of 47, Lincoln's Tun Fields, in the
County of Middlesex, and of Glasgow, North Britain, Gentleman, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
THE PRODUCTION OR MANUFACTURE OF FLOUR," being a communication
from Monsieur Buiroz, a foreigner resident abroad, to be as follows:-
This Invention consists in placing inside the conductor to the
bolting mill a small cylinder fitted with a series of projecting ribs
or strips on its circumference running parallel with its axis. This

page_text: cylinder has a rotatory movement given to it which is regulated
according to the required amount of feed. The flour falls on the
upper surface of this cylinder, and thence to the bolting machine,
being allowed to pass the cylinder by the revolutions of the latter.
In order to prevent the possibility of hard and lumpy flour and
foreign bodies, such as grits, nails, &c., entering the bolter, and thereby
destroying the cloth of which it is composed, the patentee places a
small screen at one end of the bolting machine, into which screen the
flour passes before being bolted. In place of ribs of wood or metal, ribs
may be substituted composed of a series of bristles after the manner of
a brush, but without making use of the same as a brush; or two plain
or uneven cylinders may be fitted to revolve within the conductor, both
their axes being in the same horizontal plane. In such case the feed
is regulated by adjusting accordingly the distance or space between the
two cylinders, which may be made to slide in bearings for that purpose.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Henry Johnson in the Great Seal Patent
Office, on the 24th December 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of
Middlesex, and of Glasgow, North Britain, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fourth day of June, in the
year of our Lord One thousand eight hundred and fifty-three, in the
seventeenth year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto ine, the said John Henry Johnson, Her
special license that I, the said John Henry Johnson, my executors,
administrators, and assigns, or such others as I, the said John Henry
Johnson, my executors, administrators, or assigns, should at any time
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
nake, use, exercise, and vend, within the United Kingdom of Great

page_text: Britain and Ireland, the Channel Islands, and Isle of Man, an Inven-
tion for "IMPROVEMENTS IN THE PRODUCTION OR MANUFACTURE OF FLOUR,"
a communication from Monsieur Buiroz, a foreigner resident abroad,
upon the condition (amongst others) that I, the said John Henry
Johnson, by an instrument in writing under my hand and seal, should
particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be perforined, 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 I, the said John Henry Johnson, do hereby
declare the nature of the said Juvention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to say:
The said Invention relates to certain improvements on or additions
to the ordinary bolting or dressing machine employed in cleaning or
dressing flour, and consists in placing inside the conductor which
conveys the ground matters to the bolting mill a small cylinder or
receiving chamber, fitted with a series of projecting ribs or strips on its
circumference running parallel with its axis. This cylinder has a
rotatory movement given to it which is regulated according to the
required amount of feed. The flour falls on the upper surface of this
cylinder, and passes thence to the bolting machine, being allowed to
pass through the cylinder by the revolutions of the latter. In order to
prevent the possability of hard and lumpy flour and foreign bodies, such
as grits and nails, from entering the bolter, and thereby destroying
the cloth of which it is composed, a small screen is placed at one end
of the bolting machine, into which screen the flour passes before being
bolted. In place of ribs of wood or metal, ribs may be substituted
composed of a series of bristles after the manner of a brush, bent, without
making use of the same as a brush; or two plain or uneven cylinders
may be fitted to revolve within the conductor, both their axes being
in the same horizontal plane. In such case the feed is regulated by
adjusting the distance or space between the two cylinders, which may
be made to slide in bearings for that purpose.

page_text: Figure 1, on the accompanying Sheet of Drawings represents a
longitudinal vertical section of a portion of a bolting machine with
the said improvements attached; and Figure 2, is a corresponding
transverse section of the same along the line 1, 2, in Figure 1. A, is
the outside wooden casing or box enclosing the bolting machine B,
which is carried by the inclined shaft C. On the end of this shaft is
keyed the small pulley D, which drives the corresponding pulley E,
fast on the end of the axis of the roller or cylinder F. This cylinder
is enclosed in the wooden casing G, which communicates with the
chamber containing the flour to be bolted. The cylinder F, has fitted
to its circumference a number of longitudinal strips or wooden ribs
e, e. Or the wooden ribs or strips may be replaced by longitudinal
brushes, forming ribs on the surface of the cylinder, their bristles being
long enough to touch the sides of the casing G, thereby preventing the
lescent of the flour into the bolter except by the revolution of the cylin-
der, which is rotated fast or slowly, according to the amount of flour
to be run into the bolting machine. If desired, two cylinders may be
used working tangentially to each other, the flour falling between them
and the sides of the casing G. After passing the cylinder or cylinders
F, the flour descends through the conducting pipe H, and enters a
basket or wire work screen I, whence it falls into the bolting cylinder
B. By this system the bolter is more regularly supplied with flour
than is usual, and the waste attendant on the passage of the flour along
the conductor from the receptacle above is obviated. Another advan-
tage is the entire absence of all noise in feeding, and the wear and
tear of the straps or bands which give motion to the feeding hopper.
A great saving is also effected in the bolting cloth, which by the
ordinary system are frequently torn or otherwise damaged by the acci-
dental entrance therein of grits, nails, or other foreign bodies, which by
the present improvements are prevented from entering by the cylinder
or cylinders F, and screen T.
Having now described and particularly ascertained the nature of the
said Invention, and the manner in which the same is or may be used
or carried into effect, I would observe, in conclusion, that I do not
confine or restrict myself to the precise details or arrangements which

page_text: I have had occasion to describe or refer to, as many variations may be
made therefrom without deviating from the principles or main features
of the said Invention; but what I consider to be novel and original,
and therefore claim as the Invention secured to me by the herein-before
in part recited Letters Patent, is,-
First, the general arrangement and construction of feeding and
screening mechanism as adapted for bolting, dressing, or other cleaning
machines, as herein-before described.
Second, the application and use of one or more ribbed or plain
cylinders for the purpose of regulating the feed, and preventing the
entrance of foreign bodies into the bolting machine.
Third, the application and use of the screen or sifter J, in the
entrance to the bolting mill for the purpose herein-before described.
In witness whereof, I, the said John Henry Johnson, have here-
unto set my hand and seal, the Twenty-third day of De-
cember, One thousand eight hundred and fifty-three.
J. HENRY JOHNSON. (L.S.)