IMPROVEMENTS IN MILLS AND APPARATUS FOR GRINDING AND DRESSING CORN AND VARIOUS SUBSTANCES
Year: 1853

page_text: LETTERS PATENT to Joseph Gyde, of Tooley Street, in the
Borough of Southwark, in the County of Surrey, Millwright
and Engineer, for the Invention of "IMPROVEMENTS IN MILLS
AND APPARATUS FOR GRINDING AND DRESSING CORN AND VARIOUS
SUBSTANCES."
Sealed the 3rd November 1853, and dated the 4th June 1858.
PROVISIONAL SPECIFICATION left by the said Joseph Gyde at
the Office of the Commissioners of Patents, with his Petition, on
the 4th June 1853.
I, JOSEPH GYDE, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MILLS AND APPARATUS FOR GRINDING AND DRESSING
CORN AND VARIOUS SUBSTANCES" to be as follows, viz. :-
This Invention consists in arranging the mill stones face to face
in a vertical position, and feeding the corn or substance to be
ground through a hollow in the centre, the same as that through
which the mill shaft passes; and beneath the mill stones the dresser
for dressing can be arranged in a compact form. And the whole

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Gyde in the Great Seal Patent Office,
on the 3rd December 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JOSEPH GYDE, of Tooley Street, Southwark, in the County of Surrey,
Millwright and Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of June, in the year of
our Lord One thousand eight hundred and fifty-three, in the six-
teenth year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto me, the said Joseph Gyde, Her special
licence that I, the said Joseph Gyde, my executors, administra-
tors, and assigns, or such others as I, the said Joseph Gyde, my ex-
ecutors, administrators, and assigns, should at any time agree with, and
no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Isles, and Isle of Man, an Invention for "IMPROVEMENTS
IN MILLS AND APPARATUS FOR GRINDING AND DRESSING CORN AND VARIOUS
SUBSTANCES," upon the condition (amongst others) that I, the said
Joseph Gyde, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, 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 Joseph Gyde, do hereby declare
the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement:
The nature of this Invention consists in arranging the mill stones
face to face in a vertical position, or nearly so, and feeding the corn or

page_text: substance to be ground through a hollow in the centre, the same as
that through which the mill shaft passes; and beneath the mill stones
the dresser for dressing can be arranged in a horizontal position, or
nearly so, and compact form. And the whole apparatus may be so
constructed as to be portable and workable by hand, thus being suitable
for emigrants, voyagers, &c.
And for the better exemplification of the said Invention, and particu-
larly in what manner the same is to be performed, I have hereto
annexed a Sheet of Drawings which I will now describe by the words,
figures, and letters following, that is to say:-
DESCRIPTION OF THE DRAWINGS.
Fig. 1, exhibits a front view of the framing of a portable mill
constructed as aforesaid.
Fig. 2, side view of same partly in section.
Fig. 3, vertical section taken at the line A, B, Fig. 1.
Fig. 4, vertical section taken at the line, C, D, Figs. 2, and 3.
Fig. 5, detailed view hereafter described.
In all these Figures the same letters of reference are, wherever
accessible, placed upon to denote similar parts; thus, E, denotes the
hopper for feeding the mill, the lower end prolonged into a tube, which
may be partially or wholly closed by the feeding slide F, to be worked
by the set screw F*, beneath which is a small case containing a screw or
serrated wheel G, fitted on the mill shaft X, the said screw G, throwing
the feed into the worin D, D, forined in the mill stone H, whence it
passes between the face of that stone and the stone I, and becomes
ground, both stones being contained in the case K, the lower part of
which is provided with a spout L, leading to the dresser M, which is of
the ordinary character, except that it is set perfectly horizontal, or
nearly so, and worked by a rigger or pulley N, placed on the spindle of
the dresser, a strap or band passing over such rigger or pulley, and over
the rim of the fly and driving wheel O, attached to the winch handle
P. The said driving wheel being provided with teeth, as shewn at Fig. 1,
(some only being shewn and marked P¹) and gearing with a corre-
sponding toothed pinion P2, set in mill shaft. There is a set screw Q,

page_text: acting on the end of the mill shaft X, for adjusting the distance
between the two stones H, and J. The letter R, denotes the box into
which bran and flour is discharged from the dresser.
It will be observed that the stone H, is surrounded by a belt, shewn
more clearly in Fig. 5, the said belt being secured to the said stone at top
and bottom by the bolts t, t, and supported on two pivots u, u, supporting
it on the mill frame, and so fitted thereto that it may have a slight
backward or forward motion, thus accommodating itself to any
inequality of pressure in the grinding process. Although I have
exhibited this Invention as applied to a portable mill, for which it is
specially applicable, yet it will be obvious to the practical man that
essentially the same arrangement of the stones and dresser may be
advantageously adopted in large mills worked by any available power.
Having, therefore, described the nature of the said Invention, and
in what manner the same is to be performed, I declare that what I
claim is, the use of mill stones face to face in a vertical position, or
nearly so, and the use of the dresser in a perfectly horizontal position, or
nearly so, whether for portable or other mills. And also the combination
of the several parts of the mill in the manner above described, and
illustrated by the Drawing, so as to render it a portable and easily
workable piece of mechanism, whether worked by hand, as shewn by
the Drawing, or by a steam engine or other motive power.
In witness whereof, I, the said Joseph Gyde, have hercunto set
my hand and seal, this Second day of December, in the year of
our Lord One thousand eight hundred and fifty-three.
JOSEPH GYDE. (L.S.)
Signed and sealed in my presence,
F. W. CAMPIN,
Patent Agent, 156, Strand.