An Improved Method of Cleaning Out Ohaff and the like.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
An Improved Method of Cleaning Out Ohaff and the like.
I SAMUEL TREWIN 30 Queen's Road, Watford Herts, Corn and Coal Merchant
do hereby declare the nature of this invention to be as follows:-
My invention consists of incloseing the mouth of the chaff cutter in a box or
drum wherein is placed a riddle or sifter, which may be suspended above or below
by chains, cords, rods, or springs or their equivalents, to be driven by a crank or
eccentric giving it a longitudinal motion; above the riddle or sifter beaters having
a suitable motion are placed which beats the chaff as it drops from the cutter to
the riddle or sifter thereby assisting in the separation of the fine particles of dust
which rises and is carried by a current of air, which may be produced by a fan or
other similar means" through an exit in the upper surface or lid of the drum
or box the heavier particles of dust falling through the sifter into a drawer below,
the cleaned chaff passing away over the riddle or sifter unto an elevator which
conveys it into bags, the elevator also acts as a support for a fan which can be so
arranged as to force a current of air into the lower part of the drum or box which
passes upwards through the beaten chaff carrying with it the fine dust through the
exit in the lid, which can then be collected, or disposed of by a flue.
The whole arrangement can be made portable as well as stationary.
Doted this Twentieth day of April One thousand eight hundred and ninety-six.
I, SAMUEL TREWIN of No. 30 Queen's Road, Watford Herts, Corn Merchant
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement:-
My invention consists of incloseing the mouth of the machine in a box or drum,
wherein is placed a riddle or sifter suspended or supported above or below by
chain, corde, rods, springs or their equivalents to be driven by a crank eccentric
or other means giving it a longitudinal motion; above the riddle or sifter beaters
baving a suitable motion are placed, which beats and agitates the chaff as it drops
from the cutter to the riddle or sifter thereby disseminateing the chaff which is
subject to a current of air "produced by a fan or other suitable means" passing
upwards through the chaff and carrying the fine particles of dust through an exit
in the upper surface of the lid, the heavier particles of dust falling through the
sifter into a drawer below, the cleaned chaff passing away over the riddle or sifter,
into an elevator which conveys it into bags, the elevator may also act as a support
for the fan, which can be arranged as to force the current of air into the lower

page_text: part of the box or drum passing upwards to the exit in the upper surface of
the lid..
The whole arrangement can be made portable or stationary as required; if
portable, by building the machine on a platform mounted on wheeles.
And that my invention may be rightly understood, I will describe the samo
by the accompanying drawings; rofrence being made to the figures and lettera
thereon.
Fig. is an end elevation of a chaff cutter, A. being the frame thereof to be
extended to any width required, the box b. being built into the frame underneath
the mouth of the cutter and extending the whole length of the machine.
A lid C. being of the same size of the box and covering the fly wheel is built
over the box and securely hinged at d. Fig. 2.
In the upper part of the lid an opening is made as showu at e. Fig. 2. At the
end of the box a door is arranged to allow the riddle or screen to slide in and out
for cleaning, and for the removal of dust g. Fig. 1.
Within the box a riddle is placed having a longitudinal motion h. Fig. 2.
"produced by a crank i. Fig. 1. or other means giving a similar action; the screen
can be adjusted for cleaning and the crank lubricated by useing the door g. Fig. 1.
A drawer may also be placed below the riddle or screen to pass through the door
for the purpose of receiving the dust and more readily removing the same.
Above the riddle or screen and under the mouth of the cutter suitable beaters
are placed, as seen at K. Fig. 2. and 3. consisting of metal prongs securely fixed in
sockets at the base, the shaft . Fig. 3. running through the sockets and working
in brackets bolted through the sides of the box at M. Fig. 3. The beaters work
into each other, and are worked by levers at a suitable angle from the center of
the shaft N. Fig. 2..and linked together at O. Fig. 2. and driven from the centre
of the link by a rod attached to the end of the riddle P. Fig. 2. which gives the
beaters an up and down motion.
Where an elevator is required the blast may be arranged at Q. Fig. 2. which
forces a current of air through a flue R. Fig. 2. into the box immediately above
the mouth of the riddle or screen, and where no elevator is required the blast can
be placed at the end of the box at the dotted line S. Fig. 2.
To prevent the air escaping over the mouth of the cutter, by the rise and fall of
the presser a flange should be made in the casting at t. Fig. 2. to work into the
socket u. Fig. 2. this will also assist in securing the lid when the machine is in
motion.
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
clain is
1st. An improved method of cleaning cut chaff and the like, by a combined
beating agitating blowing, riddleing and screening machine, the mechanism being
inclosed in a drum or box, and by the arrangement of the whole as severally
described in Figs. 1. 2. 3. being a continuous process in one combined apparatus,
"with elevator attached for sacking the cut material" and so constructed as to in
nowise interfere with the natural position of the chaff cutter, thereby securing the
ninimum of labour in feeding, the maximum of cleanliness for the material cut, and
for the persons attending the machine.
2nd. By a riddle, sifter, or screen being constructed in a drum or box and
inclosed as described at b. c. Fig. 1. whereby the dust which rises in the process of
sifting, riddleing, or screening is confined and disposed of by a blast or the like,
thus preventing the dust from again settling on the cut material, and by disposing
of the dust in the manner described allows the persons working the machine to do
so in a much purer air then is the case with other chaff cutting machines.
3rd. By having the screen so arranged as to be eisily adjusted for cleaning and
changing.
4th. By having beaters or agitators whereby the cut material is disseminated aud

page_text: nore thoroughly exposed to the current of air securing a more complete means of
separating the dust from the cut material.
5th. By the cut material being not only beaten, and agitated but afterwards.
screened, the heavier partioles of dust "which cannot be separated by the current
of air on account of the lightness of the material being cut" passing through the
screen into a drawer below prepared to receive it.
6th. By having a suitable means of preventing the escape of air and dust over
the mouth of the outter as it rises and falls with the size of the feed, and by placing
a flue at the exit e. Fig. 2. the dust can be convayed out of the building and finally
disposed of.
1000