An Improved Attachment for Fanning Mills.
Year: 1891

page_text: Date of Application, 15th June, 1891
Complete Specification Left, 15th Mar., 1892-Accepted, 16th Apr., 1892
PROVISIONAL SPECIFICATION.
An Improved Attachment for Fanning Mills.
I WILLIAM WILSON HORN of the firm of Horn and Son of 151 Strand in the
County of Middlesex Patent Agent do hereby declare the nature of this invention
(a communication to me from John Herson and Alwin Cole both of Port Huron
State of Michigan United States of America Inventors) to be as follows:-
This my invention relates to an improved attachment for fanning mills and it
consists in the novel features of construction hereinafter described.
My invention consists of a casing having a series of sieves or screens arranged
therein the said sieves.or screens being adjustably inserted in a suitable shoe which
is suspended within the casing.
A tapper is mounted on the said shoe and is provided with a pulley at its rear
end and a belt or band passes over the said pulley the ends of the said bands being
crossed and secured to the casing at a suitable point.
As the material or grain is screened it falls into a series of shoots or spouts from
which it passes into a convenient receptacle placed to receive it.
لبعد
1
CT1001
COMPLETE SPECIFICATION.
An Improved Attachment for Fanning Mills.
I WILLIAM WILSON HORN of the firm of Horn & Son of 151 Strand in the
County of Middlesex Patent Agent do hereby declare the nature of this invention
(a communication to me from John Herson and Alwin Cole both of Port Huron
in the State of Michigan United States of America Inventors) and in what manner
the same is to be performed; to be particularly described and ascertained in and
by the following statement :-
The object of my invention is to provide a very simple and efficient device by
the use of which all impurities will be removed from a mass or mixture of grain
and the grain separated into its different grades or kinds by a single operation
and to accomplish this object by means that are not complicated and liable to
get out of order. These objects I accomplish by the use of the mechanism
illustrated in the annexed drawings; and the invention consists in certain novel
features of the same as will be hereinafter more fully set forth and particularly
pointed out in the claim.
In the drawings referred to Fig. 1 is a rear elevation of a fanning mill provided
with my improvements. Fig. 2 is a longitudinal vertical section of the same and
Fig. 3 is a detail perspective view of the shoe and the tapper.
The casing A or frame of the mill is of the usual or any preferred construction
and the fan B is mounted in the front end thereof in the usual manner.
A hopper C is arranged in the top of the frame, and the grain is placed in this
hopper when the mill is to be operated as will be readily understood.
In the drawings I have shown a slide D mounted on the under side of the top of
the frame so as to cover or uncover the opening in the hopper at will; but it is
obvious that this slide is not essential and forms no part of my invention.
Within the frame and near the rear end of the same I provide a gang E of sieves
or screens, which consists of the side plates F and the sieves or screens G, secured.
between them. This gang of sieves is hung within the frame, so as to have a slight
vibration by means of the straps H, having their upper ends secured to the inner

page_text: sides of the side walls of the frame and their lower ends secured to the side plates
of the gang near the lower edges thereof.
At the upper end of the gang of sieves I arrange a deflector or slide I, which is
inclined toward the rear end of the gang, and is adapted to extend under the
opening of the hopper so as to cause the grain to run downward toward the rear
end of the gang of sieves as it comes from the hopper. Below the deflector or
slide I provide a sieve or screen J, which is arranged at a less pronounced
inclination than the slide or deflector, and has its rear end projecting beyond the
rear end of the frame or gang and provided with a spout or oat-arrester K, as
shown. The chaff contained in the grain will be blown over the end of the sieve
and the spout by the current from the fan, and the oats will be deposited in the
spout and thereby carried to one side and collected. It will consequently be
understood that this screen with the spout is used only when it is desired to remove
oats from the wheat and at the same time grade the wheat.
Below the sieve or screen J and at the rear end of the gang I provide the
substantially parallel screens or sieves L M, which are inclined downward toward
the front end of the gang. These screens are of different meshes, the upper one
being the larger, and also of different sizes, the lower one being the shorter. These
substantially parallel screens or sieves are arranged adjacent to and above a metallic
shoe N, which forms the bottom of the gang or screen frame. This shoe is provided
at its front end with the delivery spouts O P Q which extend in opposite directions
and are adapted to convey the different qualities or kinds of grain to the proper
receptacles. The foremost spout receives the grain which fails to pass through the
screen or sieve L, the intermediate spout receives the grain that passes over the
end of the screen or sieve M, and the rearmost spout receives the grain that drops
through the sieve M and falls onto the shoe.
The sieve M is the finest sieve or screen of the lot, and consequently the grain
that passes therethrough will be of the finest grade. In order that none of this
grain may be lost by failing to pass through the sieve, I provide a tapper R,
which consists of a rock shaft S, mounted in suitable bearings on the shoe, and
the striker arms T extending laterally therefrom. A pulley U is provided at the
rear end of the rock-shaft, and a belt or band V is passed tightly over this
pulley and then downward through the rear end of the shoe, after which its
ends are crossed and secured rigidly to the rear end of the casing or frame of
the mill, as clearly shown in Figs. 1 and 3.
The fan and the gang of sieves are operated in the usual manner, the sieves being
vibrated transversely of the mill. As the gang of sieves is thus caused to swing
from side to side of the mill, the pulley U will be forced to travel under the belt or
band passed thereover, and consequently the rock-shaft will be oscillated, and the
striker arins caused to impinge against the bottom sieve or screen, and thus loosen
the grain thereon, so that none of it can collect. All of the grain will thus be
agitated and the finest grade made to pass through the sieve onto the shoe, whence
it passes to the proper receptacle, as will be readily understood from the foregoing
description taken in connection with the annexed drawings.
It will be noticed upon reference to the drawings that the lower screens have
their front ends resting upon transverse partitions, so that none of the grain that
passes over their front cuds can mingle with that which passes through their
meshes, thus insuring the maintaining of the separated grains in distinct lots.
It will be seen from the foregoing description, taken in connection with the
accompanying drawings, that I have produced an extremely cheap, simple, and
efficient device by the use of which all impurities will be removed from the grain
and the grain separated into its several component grades or kinds at a single
operation. The several parts of my improved mill are arranged in a very
compact manner, and at the same time they are readily accessible for the purposes
of cleaning or repairing. The shoe employed by me presents in a single element
a bottom for the gang of sieves and also delivery spouts for the several grades
or different kinds of grain in the mixture, all of which, except the one delivered

page_text: by the spout K, are delivered to their proper receptacles by the shoe. The
tapper at the rear end of the shoe is a very important element of my invention,
and it positively prevents any grain collecting on the bottom screen
or sieve
and clogging the meshes thereof, and is automatic in its operation. Each screen
or sieve in my mill serves to separate one grade or kind of grain from the mass
and deliver it to the proper delivery spout. It is my intention in practice to
furnish in each mill a series of sieves of different sizes and meshes so that the
owner can quickly arrange the mill for separating any kind of grain into its several
grades, or for separating the different kinds of grain from each other and froin the
impurities when mingled.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with the casing and the gang sieves, of the shoe forming the
bottom of the said gang, the tapper mounted on said shoe and provided with a
pulley at its rear end, and the belt or band passed over the said pulley and having
its ends crossed and secured to the casing as set forth.
Dated this 15th day of March 1892.
HORN & SON,
Applicant's Agents.