Year: 1886

page_text: Date of Application, 29th Dec., 1886
Complete Left, 29th Sept., 1887
Complete Accepted, 4th Nov., 1887
1, JAMES OLIVER, of Wigmore Hall, Luton, in the County of Bedford, Machinist,
do hereby declare the nature of this invention to be as follows:-
--
My invention relates to chaff cutting machines or apparatus of that class in which
one or more sieves or screens are employed for separating long and improperly cut
pieces of hay, straw or other material from the properly cut portions.
In machines of this class as heretofore constructed the separating screens are
arranged below the level of the feed table, so that as the chaff is cut it falls upon the
said screens. The disadvantages of this arrangement are that the chaff is discharged
so low down that it is necessary to employ an elevator (which is very cumbersome) if
it is desired to deliver the chaff into sacks; and that in order to again pass the tailings
from the screens through the machine it is necessary to raise the said tailings to the
feed table by hand or to employ a second elevator therefor.
According to my present invention I obviate these disadvantages, by arranging the
said screen or screens above the level of the feed table.
The chaff as it is cut is delivered onto the said screen, and I prefer to employ a fan for
this purpose. The said fan is very advantageously composed of a series of blades or
wings attached to the knife wheel, so as to produce the necessary draught during the
rotation of the latter.
By arranging the sieve or sieves above the feed table it will be understood that the
chaff can be discharged from the machine at a point sufficiently high to enable
the same to be delivered into sacks without the use of an elevator and also that the
tailings can drop off the screen directly into the feed box to be further cut.
Dated this 29th day of December 1886.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Chaff-cutting Machinery or Apparatus.
I, JAMES OLIVER, of Wigmore Hall, Luton, in the County of Bedford, Machinist
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 relates to chaff-cutting machinery or apparatus of that class in which
one or more sieves or screens are employed for separating the long and improperly
cut pieces of hay, straw or other material from the properly cut portions thereof.
In machines of this class as heretofore constructed, the separating screens are
arranged below the level of the feed-table or hopper and the cutters, so that the chaff,
as it is cut, falls upon the said screens. This arrangement has the disadvantage that,
if the feed-table or hopper is placedjata convenient height for feeding in the hay, straw,
or other material by hand, the chaff is discharged very low down, and it is, therefore,
necessary to employ an elevator to raise the chaff in order to permit the delivery
thereof into sacks; moreover, if it is desired to pass the tailings from the screens
through the machine to be again operated upon by the cutters, it is necessary to raise
the said tailings to the feed-table by hand or to employ a second elevator for this
purpose.
According to my present invention, I obviate these disadvantages as hereinafter
described, that is to say :-I arrange the separating screen or screens at a sufficient
height above the level of the feed-table or hopper to permit the delivery of the chaff
into sacks and the return of the tailings to the feed-table or hopper without the use
of elevators. Moreover I employ a fan, blower or other suitable device whereby the
chaff, as it is cut, will be raised and delivered upon the separating screen or upon the
uppermost screen of a series. For raising the cut chaff, I can advantageously employ
a fan or blower composed of a series of blades or wings attached to the knife-wheel
or cutter-wheel, so that they will produce the necessary draught, during the rotation
of the said wheel, to carry the chaff up through a pipe or shaft and deliver it into
the screen.
In the accompanying drawing, 1 have shewn how my said invention may be con-
veniently and advantageously carried into practice.
Figure 1 is a plan,
Figure 2 a side elevation, and
Figure 3 an end elevation of a
with my said invention.
chaff-cutting machine constructed in accordance
Like letters indicate corresponding parts throughout the drawing.
a is the casing of the machine, is the feed-table or hopper, c is the knife-wheel or
cutter-wheel, which is enclosed by means of a casing c¹.
d, d' are the separating sieves or screens which are arranged above the feed-table &
and one above the other. e, e are blades or wings which are formed or fixed on the
wheel a near its periphery. is a pipe or shaft, which is connected at its lower end
with the casing c¹, and up which the cut chaff will be driven, by the action of the said

page_text: blades or wings, into the sieve or screen d. The chaff which passes through this
screen will fall into the screen (1.
To provide for the return of the tailings from the screen d to the cutters, I attach
to the screen d' a hopper or chute g for conducting the said tailings into a convenient
position on-the feed-table to permit the feeding of the same with the fresh material to
the cutters.
is
h is a pipe or spout through which the chaff from the screen d¹ will fall, and
another pipe or spout for the discharge of the dust and other substances which pass
through the said screen d¹, and which are received upon a tray d' attached to the
underside of the said screen.
The screens d, d' are suspended by means of links d³ and are arranged to be
operated by means of a crank i' on the shaft coupled, by means of a connecting
rod j, to the screen d, the said screen d being connected to the screen by means of
levers d pivoted to the casing a so that the said screens will move in opposite
directions.
The cutter wheel c is fixed upon a shaft extending through the machine and pro-
vided with a driving pulley whereby motion is to be imparted to the said cutter-
wheel. Motion is imparted to the shaft i through the medium of a belt or cord /
passed around a pulley m fixed on the shaft and around a pulley #fixed on the
shaft ².
It will be seen that, by the above described improved construction, an attendant cau
feed the hay, straw, or other material to the machine while standing upon the ground
instead of requiring to stand upon a part of the machine, in which case he would be
subjected to the constant vibration of the machine. Another advantage of the above
described construction is that the tailings can drop off the screen d¹ and fall through
the chute g directly onto the feed-table to be fed to the cutters and further cut.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, I wish it understood that I claim :-
First. A chaff-cutting machine wherein the separating screen or screens are
arranged above the feed-table or hopper, for the purposes herein specified.
Second. The employment of a fan or blower for raising the cut chaff and delivering
it into a sieve or screen above the feed-table or hopper, as, and for the purpose, herein
specified.
Third. The improved chaff-cutting machine consisting of the parts constructed and
combined substantially as described with reference to the accompanying drawing and
operating as, and for the purposes, set forth.
Dated this 28th day of Santambor 1887
Dated this 28th day of September 1887
J. OLIVER.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.