IMPROVEMENTS IN MACHINERY FOR ELEVATING GRAIN OR
Year: 1859

page_text: LETTERS PATENT to John Bruckshaw, of Longslow, in the County of
Salop, and Henry Bruckshaw, of Hinstock, in the same County,
Engineers, and William Scott Underhill, of Newport, in the same
County, Manufacturer, for the Invention of "IMPROVEMENTS IN MACHINERY
FOR ELEVATING GRAIN OR OTHER SIMILAR SUBSTANCES."
FOR ELEVATING GRAIN OR OTHER SIMILAR SUBSTANCES."
PROVISIONAL SPECIFICATION left by the said John Bruckshaw, Henry
Bruckshaw, and William Scott Underhill at the Office of the Com-
missioners of Patents, with their Petition, on the 19th October 1859.
We, JOHN BRUCKSHAW, of Longslow, in the County of Salop, and HENRY.
BRUCKSHAW, of Hinstock, in the same County, Engineers, and WILLIAM.
SCOTT UNDERHILL, of Newport, in the same County,, Manufacturer, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN MACHINERY
FOR ELEVATING GRAIN OR OTHER SIMILAR SUBSTANCES," to be as follows, that is
to say:
Our Invention consists in using a revolving fan for the purpose of elevating.
or raising grain, and this fan is applicable to thrashing machines, granaries,
corn mills, warehouses, and for any other like purposes in which grain is
required to be raised. The fan is of the common rotary description, driven
in the usual manner, and the substances to be raised are caused to pass in at
the sides of the fan, and are delivered into a passage or spout on the outer

page_text: edge or rim only, and in manner similar to that in which the blast is used at
a common smith's fire. The grain or other substance is raised by the joint
action of the fan and blast.
SPECIFICATION filed in pursuance of the conditions of the Letters Patent,
and of an Order of the Lord Chancellor, by the said John Bruckshaw,
Henry Bruckshaw, and William Scott Underhill, in the Great Seal Patent
Office on the 25th April 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
BRUCKSHAW, of Longslow, in the County of Salop, and HENRY BRUCKSHAW,
of Hinstock, in the same County, Engineers, and WILLIAM SCOTT UNDERHILL,
of Newport, in the same County, Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of October, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said John Bruckshaw, and Henry Bruckshaw, and William Scott Underhill,
Her special license that we, the said John Bruckshaw, Henry Bruckshaw,
and William Scott. Underhill, our, executors,, administrators, and assigns, or
such others as we, the said John Bruckshaw, Henry Bruckshaw, and William
Scott Underhill, our executors, administrators, and 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 make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and; Isle, of Man, an Invention for, "IMPROVE-
MENTS IN MACHINERY FOR ELEVATING GRAIN OR OTHER SIMILAR SUBSTANCES," upon
the condition (amongst others) that we, the said John Bruckshaw, Henry
Bruckshaw, and William Scott Underhill, by an instrument in writing under
our hands and seals, or under the band and seal of one of us, should par-
ticularly describe and ascertain the nature of the said Invention, 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 we, the said John Bruckshaw, Henry Bruckshaw,
and William Scott Underhill, do hereby declare the nature of our said
Invention, and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement, reference

page_text: being had to the Drawings hereunto annexed, and to the letters and figures
marked thereon (that is to say):-
Our Invention consists in the employment of a revolving fan for the purpose
of elevating or raising grain, and this fan is applicable to thrashing machines,
granaries, corn mills,, warehouses, and for any other like purposes in which
grain is required: to be raised. The fan is one of the common rotary
description,, driven in the usual manner, and the substances to. be raised are
caused to pass in at the sides of the fan, and are delivered into a passage or
spout on the outer edge or rim only, and in manner similar to that in which
the blast is. used in a common smith's fire. The grain or other substance is
raised by the joint action of the fan and blast.
DESCRIPTION OF THE DRAWINGS.
Sheet A represents in sections one mode of applying our Invention to corn
mills or granaries; Sheet B illustrates it application. to thrashing machines.
We will now proceed to describe the working of our Invention, firstly, in
its application to corn mills, granaries,, warehouses, or other stores in which
it may be requisite frequently to shift and separate the grain for the purpose
of cleaning it, and to prevent overheating. The Drawings, Sheet A, repre-
sent sections, of a granary of three floors in height, in which a, a', a², b, b', b²,
are the garners; C is a tube running from the top floor to the fan (D) on the
ground floor, and discharging itself into the hopper (E). Ducts (C', C', C³, C²,)
lead from each garner into the same tube (C), thus allowing the contents of
each garner to pass through the fan D. The fan may be driven by any
suitable power, and may be mounted in any way most convenient in the mill.
The Drawing represents. a portion of the case removed. to. shew the blades.
The grain as it is received in the fan from the tube (C) is by the action of
the fan and blast thrown violently up. A second tube F, of larger sectional
area than the tube (C) out of the spout G, of which tube F it is ejected into
the garner (A). The port or trap H at the bottom of the garner (A) being
closed, this operation would result in simply removing the grain from the
bottom floor to the top one; but if it be desired to fill all the garners, the
ports H, H', in the respective garners A, A', would be opened, when the grain
would descend through them into the lowest garner (A³) until that garner
was filled; the port (H') would then be closed, and the garner (A') allowed
to fill, when the same operation would be repeated for the top garner. The
head of the tube F, with its spout G, is capable of revolving similar to a cowl,
to admit of its filling garners in any position around it; and if a mill or
granary contain more than three floors, it is only necessary to let the tubes

page_text: (C and F) pass through them all, the action of the fan, when driven at a high
velocity, being sufficient to throw the grain to a height considerably greater
than that of any ordinary mill or granary.
Sheet B illustrates the application of our Invention to a thrashing machine.
(A) is the main frame of the machine; B, the case of the fan, with the fliers
or blades (C) fixed on the fan shaft (E) of the first winnowing machine, or in
any other more convenient position; D is a hopper, into which the grain is
fed by a vibrating spout F. The grain being thus supplied to the fan is, by
the action of the fan thrown up the tube G, and 'into a receiver or hopper H,
whence it falls through the spout (I) into sacks or into a second dressing
machine, if requisite, the dust flying off through an escape and trap (K), as
indicated by the arrows.
Having thus described the nature of our said Invention, and the manner in
which the same is to be performed, we wish it to be understood that, without
limiting ourselves to these precise details, that that which we claim is, the
elevating or raising grain or other similar substances from one level to another
by means of a blast and fan, as herein more fully set forth and specified.
In witness whereof, we, the said John Bruckshaw, Henry Bruckshaw,
and William Scott Underhill, have hereunto set our hands and seals,
this Eighteenth day of April, in the year of our Lord One thousand
eight hundred and sixty.