CERTAIN IMPROVEMENTS IN FLOUR MILLS
Year: 1841

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
SCOTT, of Louth, in the County of Lincoln, Miller, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Tfer.
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-third day of September, in the fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
George Scott, my exors, adññiors, and assigns, Her especial licence, full power,
sole privilege and authority, that I, the said George Scott, my exors, adñiors,
and assigns, and such others as I, the said George Scott, my exors, admors,
or assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within that part of Her
Majesty's United Kingdom of Great Britain and Ireland called England,
Her Dominion of Wales, and the Town of Berwick-upon-Tweed, my Inven-
tion of "CERTAIN IMPROVEMENTS IN FLOUR MILLS;" in which said Letters Patent
there is contained a proviso, that I, the said George Scott, should cause a
particular description of the nature of my said Invention, and the manner in
which the same is to be performed, under my hand and seal, to be inrolled in
Her Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
George Scott, do hereby declare that the nature of my said Invention, and the
manner in which the same is to be performed, are fully set forth and described
in the following Specification thereof, reference being had to the Drawings
hereunto annexed, that is to say:-
Whereas in that portion of the machinery of flour mills which is called the
dressing machine the ribs of the cylinder to which the wire cloth is attached
are fixed in straight lines parallel to the top and bottom of the cylinder, or, in
other words, at right angles to the axis of the cylinder, and the wire cloth
becomes frequently worn and rent at the part next to the ribs long before it is
impaired from use in other parts, owing to the tendency of the wire cloth to
rend in the rectilineal direction of the ribs: And whereas the gearing com-
monly employed to give a revolving motion to such machines is complex and
inconvenient: Now, the nature of my said invented improvements consists in
placing the ribs of the cylinder at such an angle in respect to the threads or
meshes of the wire cloth that they shall be more or less in the line of greatest
resistance to tearing and rending, and also in making certain simple additions
to the machine, by means of which the proper rate of rotation may be given
to it; and the manner in which the said improvements are to be carried into
effect is represented by the Drawings hereunto annexed, and in the following
description thereof.
Figure 1 is a side elevation of a dressing machine embodying my said
improvements. A is the cylinder; B, B, B, B, the ribs, which, instead of
being straight, as before described, are placed at an inclination to the axis of
the cylinder of about twenty-five degrees, ard to prevent the angular position
of the ribs from diverting any of the finer or coarser portions of the feed into
partitions other than those allotted to them, circular bands or plates of copper
or any other suitable material (as a, b, Fig. 1), and of about the depth of the
ribs, are inserted into the cylinder in positions parallel to the ends and outside
of the wire cloth at those places where such partings are desired to be made.
Each piece of wire cloth commencing with that at the top of the machine
overlaps the one next below it, and to prevent the brushes from starting or
raising the edges, and to keep these edges flat and even, each joining is covered
with a strip of copper, or other suitable metal nailed over the cloth to the
ribs. C, C, is a cog wheel, or rather series of cogs, affixed to the head of the
cylinder A; D is a pinion which takes into the cog wheel or cogs C, C; E is
a plate fixed vertically to the head of the cylinder case carrying the pinion D
and pallet wheel F; G is a pendulum, the rod of which carries at its upper end

page_text: two palls, which, as the pendulum vibrates, take alternately into the teeth of
the pallet wheel.
A separate view (as seen in front) of the additions E, F, and G, all of which,
with the cogs C, C, & pinion D, are peculiar to my said improved dressing
machine, is given in Figure 2. The effect of rotation being given to the
cylinder being of necessity to set in motion all the gear work in connection
with the cogs C, C, it follows also that according to the relative proportions of
the wheels and the weight and length of the pendulum will be the rate at
which the cylinder revolves. In order to lessen the friction of the cylinder in
its rotation, the bearing at the tail end is made of the reduced size and form
represented in the plan, Figure 3.
And having now described the nature of my said Invention, and the manner
in which the same is to be performed, I declare that though I prefer placing
the ribs of the cylinder at an inclination of about twenty-five degrees to its
axis, I do not confine myself to any particular angle or degree of inclination,
but claim a right to the use of any angle or degree of deviation from the ordi-
nary straight position of these ribs, by which the wire cloth attached to them
may be rendered less liable to be worn and rent.
I declare also that I claim the use of the cylinder constructed in the manner
shewn in Figures 1 and 3 of the Drawings hereunto annexed and before
described; and the use, also, of the movement attached thereto, shewn in
Figures 1 and 2 of the said Drawings, whether the said two branches of my
improvements are used in connexion together, or used separately, the one
without the other.
And such my invented improvements being, to the best of my knowledge
and belief, entirely new and never before used within that part of Her
Majesty's United Kingdom of Great Britain and Ireland called England, Ier
Dominion of Wales, or the Town of Berwick-upon-Tweed, I do hereby declare
this to be my Specification of the same, and that I do verily believe this my
said Specification doth comply in all respects, without reserve and disguise, with
the proviso in the said herein-before in part recited Letters Patent contained,
wherefore I hereby claim to maintain exclusive right and privilege to my said
Invention.
In witness whereof, I have hereunto set my hand and seal, this Twenty-
GEORGE (L.S.) SCOTT.

page_text: AND BE IT REMEMBERED, that on the Twenty-third day of March
in the year of our Lord 1842, the aforesaid George Scott came before our
said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according to
the tenor of the Statute made for that purpose.
Inrolled the Twenty-third day of March, in the year of our Lord One
thousand eight hundred and forty-two.