A CERTAIN IMPROVE- MENT IN MACHINERY FOR DRESSING FLOUR;
Year: 1829

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I,. JOHN
SMITH, of Bradford,. in the County of York, Corn Miller, (being one of the
people called Quakers,) send greeting.
exors,
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain,. bearing date
at Westminster, the Fourth day of June, in the tenth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the
said John Smith, His special licence that I, the said John Smith, my
adiiors,. and assigns, or such others as I, the said John Smith, my exors,
adiñiors, or assigns, should at any time agree with, and no others, from time
to time and at all times during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "A CERTAIN IMPROVE-
MENT IN MACHINERY FOR DRESSING FLOUR;" in which said Letters Patent
is contained a proviso obliging me, the said John Smith,. by an instrument
in writing under my hand and seal, particularly to describe and ascertain the
nature of my said Invention, and in what manner the same is to be per-
formed, and to cause the same to be enrolled in His said Majesty's High
Court of Chancery within two calendar months next and immediately after
the date of the said 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
John Smith, do hereby declare the nature of my said Invention to consist,―
First, in constructing the machine with iron ribs, and in a new method of
fixing the wirework to the said ribs. And,
Secondly, in the application of an external brush to the machine, for the !
purpose of clearing the flour from the outside of the said wirework.
And in further compliance with the said proviso, I, the said John Smith,
do hereby describe the manner in which my said Invention is to be performed,
by the following description thereof, reference being had to the Drawings.
annexed, and to the figures and letters marked thereon (that is to say):— .
DESCRIPTION OF THE DRAWINGS.
In the Drawing marked A, Figure 1 is a plan of my said Invention. The
parts marked form a series of iron ribs made in two semicircular parts, and
fastened together by bolts and screws through the flanges or stays at K.
forming the cylinder of a flour-dressing machine. Each part of these ribs has
a hole bored in its centre, through which the iron rod L, L, is passed from end
to end of the machine, to keep the ribs steady, and connect the whole together.
Dis the external brush, and A, B, B, the gear which moves it, but which will
be more clearly understood by reference to the next Figure. Figure 2 is a
side view of part of one of the iron ribs, drawn half the full size, showing the
manner of fixing the wirework to it, and which is done in the following
manner-The under side of the rib W is cast or turned with a hollow or
semicircular groove, and has a small semicircular rod or batten made to fit up
into it. The wire net, which is represented by the dotted line. at, W, being raised
up to the under side of the rib, and pressed into the groove, the rod is pressed
'up. against the wirework, and a screw bolt, with a head to it, is passed
through the rod, wirework, and rib, and screwed up tight by the thumb
nuts marked Y. At those places where the bolts pass through the rib, as
'at F, the casting should be made somewhat larger, to admit of boring. The
bolt hole L is the hole ofor the connecting rod to pass through, and K, the
flanges or stays through which the two parts of the ribs are screwed together.
Figure 4 is a section of the rib at one of the bolt holes. Y is the thumb nut;.
e, the bolt; F, the rib; G, the rod or batten fitting into the hollow or groovo
cast in the under side of the rib; and W, W, is the wire netting or web.
Figure 5 is a section of the rib, batten, and wirework, taken between two
bolts. It may be well here to state that the framework is omitted merely
to avoid confusing the Drawing, and requires nothing particular in its
arrangement.

page_text: I will now proceed to describe the action of the external brush and of the
machine generally, for it should here be observed that in this machine, for. the
purposes of my said improvement of the external brush, it is necessary that
the cylinder should luove as well as the brushes, the former moving at the
rate of about one revolution in a minute.
Figure 3 shows the operation and action of the external brush, where A is
pinion, the axis of which passes through the whole length of the cylinder
upon which the internal brush is fixed; and also a pulley upon end A,
Figure 1, not shown. This pulley is put in motion by a strap connected
with any convenient machinery in the mill. The pinion gives motion to the
large wheel B, which also has a small pinion R fixed on its axle that moves
the cylinder S round about once in a minute. The large wheel B works in
another wheel C, on the axle of which is fixed a pulley that gives motion to a
strap to another pulley fixed on the axle of the external brush D. 'This brush
is made to rise over the two stretching stays K and rod L, Figure 1, by means
of four tappets, I, in the same Figure, which as the cylinder revolves takes
hold of the end of the lever H, Figure 3, and raises the end, causing the
piece T to take hold of the bottom of the arms P, which support the brush.
These arms are fixed upon an axle V, running the whole length of tho
external brush, and are both moved at the same time at the bottom end
towards the cylinder. This action causes the axle to move on the centre V,
and consequently raises the brush, and keeps it in that position till the
stretching stays, as before described, have passed by.
The Drawing marked B represents a section of the cylinder and external-
brush on a larger scale, the better to show the tappets, marked I, which,
acting as before described on the arm H, causes the brush D to rise over
the stretchers and rods at K, K, L, L, as the cylinder revolves. a is part of
the outer casing or framework, and f is an adjusting screw to regulate the
descent of the brush D upon the cylinder.
Now whereas I claim as my Invention the iron ribs herein-before described,
and the manner of fastening the wire net or web thereto, as also the
application of an external brush in manner and for the purpose aforesaid.
And such my Invention being, to the best of my knowledge and belief,
entirely new, and never before used within that part of His said Majesty's
United Kingdom of Great Britain and Ireland called England, His said
Dominion of Wales, or 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 respect, fully and without reserve or
disguise, with the proviso in the said herein-before in part recited Letters

page_text: Patent contained; whereof I hereby claim to maintain exclusive right and
privilege to our said Invention.
In witness whereof, I, the said. John Smith, have hereunto set my hand
and seal, this Thirtieth day of July, in the year of our Lord One
thousand eight hundred and twenty-nine.
JOHN (L.s.) SMITH.
AND BE IT REMEMBERED, that on the Thirteenth day of July, in
the year of our Lord 1829, the aforesaid John Smith came before our said
Lord the King in His 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..
1.
Inrolled the Fourth, day of August,. in. the year of our Lord Ono
thousand eight hundred and twenty-nine..
"RIX IT

page_text: The dowed lines shew the position of the Brush and
levers when the Brush is in contact with the wire work
of the Drum.
a part of the external case to which the levers are Fixed