Improvements in Screening Apparatus to be Used in Combination with Machines for Cutting Chaff or similar Substances.
Year: 1888

page_text: Date of Application, 6th Nov., 1888
Complete Specification Left. 6th Sept 1889-Accepted 12th Oct. 1889
PROVISIONAL SPECIFICATION.
Improvements in Screening Apparatus to be Used in Combination
with Machines for Cutting Chaff or similar Substances.
1, JAMES POWLES WEST Engineer 82 Campbell Road Bow London E., do
hereby declare the nature of my invention for IMPROVEMENTS IN SCREENING
APPARATUS TO BE USED IN COMBINATION WITH MACHINES FOR CUTTING CHAFF OR
SIMILAR SUBSTANCES to be as follows:-
For this purpose I employ one or more seives attached and adjusted in a frame
made of wood, iron, or any other suitable material: the seives are perforated with
holes ranging from of an inch to 3 inches diameter as may be desired, made either
of Steel, Zinc, Iron, Wood or any other suitable material. This said Frame is
attached and adjusted underneath the knives, or Cutters of the Chaff Cutting machine
as may be desired, so as to receive the Hay, Straw, Clover, Chaff or other long and
fibrous matter, the same being hung up by means of leather straps, or flat
oscillating springs made of Steel, Lance or other wood: the same being also set at an
angle of inclination according to the sample that is being treated: the end whereat
it is delivered being the highest.
A small countershaft is fixed by the side of the separator parallel with spindle to
which the knives or cutters are attached, the same being driven at a high speed:
attached to the said countershaft is either a crank, disc or an eccentric, and con-
nected to the side of the frame of seive or separator by means of a connecting rod so
as to obtain a side oscillating motion to the seives or separator.
This side oscillating motion can be obtained by other means than described above.
DL:
1000
J. POWLES WEST.
COMPLETE SPECIFICATION.
Improvements in Screening Apparatus to be Used in Combination
with Machines for Cutting Chaff or similar Substances.
I JAMES POWLES WEST, Engineer of 82 Campbell Road, Bow, London, E. do
hereby declare the nature of my said invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
This invention relates to certain improvements in screening apparatus to be used in
combination with machines for cutting chaff or similar substances.
For this purpose I employ one or more perforated plates with different sized
perforations in a frame. The holes in the plates range from of an inch to 3 inchos
diameter as may be desired.
The frame is suspended and adjusted by means of leather straps, or flat oscillating
springs made of steel. Lance or other wood underneath the knives or cutters of
the chaff cutting machine or otherwise as may be desired to receive the cut Hay
Straw Clover, Chaff, or other similar long and fibrous matter.
The frame or frames are set at an angle of inclination according to the sample or
material under treatment, the end of the frame on to which it is delivered being the
highest.
A small countershaft is fixed by the side of the separator parallel with the spindle
to that of the knives or cutters and is driven at a high speed either by a crank disc or
an eccentric and connecting rod jointed to the side of the sieve frame so as to
obtain a side oscillatory motion to the sieves or separator.
My invention will be clearly understood by the annexed drawings.
Figure 1 is a perspective view of a sieve mado in accordance with the foregoing
locarintion

page_text: It is composed of three perforated plates A, B, C with holes of different diameters.
Dis the frame in which said perforated plates are affixed. E, E, E, E are leather or
thin flat wooden strips by which the frame and plates are suspended, from say, the
mouth of a chaff cutter see Figures 2 and 3 so that the cut material falls directly on
to the plate A that being the highest of the three plates in one frame.
The sieve frame is oscillated from the side from the counter shaft F through.the
intermediation of the dise G and rod H the amount of oscillation being determined
by the position to which block I is set in the groove of the disc G, see Figure 4 a
plan, at a slightly larger scale.
By arranging the perforated plates A, B, C, as indicated all the dust and foreign
matter with the finer cut stuff pass through the perforations of the plate A the longer
pieces alone being kept above on said plate. The long pieces are inclined to
arrange themselves lengthwise of the sieve, and in doing so, some of the shorter
lengths are temporarily held by them also a portion of the dust, both of which
become gradually separated from the longer pieces while they pass over the other
sized perforations of the other two plates the long pieces alone falling over the edge.
According to the ordinary cutting of fodder for horses an imperfect mixing of
corn with the chaff takes place because of the many long pieces of Hay and Straw
being drawn away from the mouth of the Chaff Cutter by the knives, which long
pieces of Hay and Straw entangle themselves and form a large number of knots
or lumps, thero being no means of removing such long pieces from the lesser
lengths.
By this invention or arrangement of series of plates in one frame and by the side
oscillation given to the frame a thorough separation is ensured, the longer lengths
being returnable to the trough of the Chaff Cutter along with the usual Hay and
Straw to be again reduced to the proper length for mixing.
The three diameter of perforated plates may be arranged in superposed order as at
Figure 5 of the drawings, the largest perforated plate being at the top so that all
except the very long lengths will pass through, the next shorter lengths being
retarded by the sieve J the short lengths and the dust falling on to the smaller
meshed plate K through which alone falls the dust and refuse.
If only one sieve frame such as I show at Figure 1 of the drawings be used the
greater part of the fine or short lengths with the dust and refuso may fall direct into
the hopper of an apparatus patented by me on the 10th day of April 1888 No. 5275
for the dust and refuse to be removed by the exhaust fan therein particularly
mentioned the heavier useful material falling into a receptacle.
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. In combination with a Machine for cutting chaff or similar substances a
screening apparatus for effecting the separation of long lengths of Hay, Straw,
Clover and other long and fibrous matter (used as fodder for horses and other
animals) by a sieve having round holes in series as exemplified by Figure 1, 3, of the
annexed drawings.
2. Giving oscillatory motion from the side of a sieve composed of plates having
round holes of different diameters in series as described with reference to the annexed
drawings, Figure 4.
3. The arrangement of superposed plates (Figure 5 of the drawings) each plate
having round holes of different diameters to each of them and partaking of side
oscillatory motion for the purpose described.
The 6th day of Santamba- 1889
H. GARDNER,
166, Fleet Street, London, Agent for the said J. P. West: