Improvements in the Manufacture and Arrangement of Machines for the Sizing of Coal and other Materials.
Year: 1895

page_text: Date of Application, 14th Aug., 1895
Complete Specification Left, 29th Apr., 1896-Accepted, 30th May,
1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture and Arrangement of Machines
for the Sizing of Coal and other Materials.
I HAMMERSLEY HEENAN of 4 Chapel Walks, Manchester in the County of
Lancaster Engineer do hereby declare the nature of this invention to be as
follows:-
This invention has reference to a new and improved construction or arrangement
& combination of parts of a screening machine specially adapted for the sizing
coal and other materials.
My present improvements relate to the method of hanging screening machines,
the arrangement of such screening machines the general shape of such machines,
the motion to be applied to the machines and the point of its application.
According to my improvements I construct the machine substantially as shown
on the drawings & built up preferably of iron or steelwork, covered in entirely on
both sides and suspended from a shaft by bearings placed at or near the top of the
machine and in the same vertical plane as the path of the coal or other material to
be screened and I impart a radial oscillating motion to the whole by means of a
connecting rod attached to an engine or other motor, preferably from a point
near the bottom of the framework of the machine.
The machine is tapered towards the bottom on two or more sides, this allows a
larger surface for the first screen which does the bulk of the work on coal or other
material when first delivered into it.
The riddles, or screen plates, I arrange preferably as shown on the accompanying
drawings.
Fig. 1 on the accompanying sheet of drawings represents a side elevation of a
four-sort screening machine.
The material to be screened is delivered first on to a plate (a) from whence,
owing to the shaking motion imparted and slight incline, it travels over the first
riddle (b) the large material passing over it and down a shoot into a suitable
receptacle or on to a picking-belt or carrier.
The material which passes through the riddle (b) falls on to a dead-plate (o)
which delivers it on to the upper end of the second riddle (d) whence it is dealt
with as before.
The same with the 3rd riddle, the dust & fine particles falling, in this case,
direct into the, receptacle, or on to dust belt, directly under the machine.
In cases where the material would be delivered into the machine by means of
belts or elevators a second plate (e) is fixed in such a position under the first
plate (a) to receive all small pieces falling past it and delivering them on to
dead-plate (c).
The riddles I place at such angles as to prevent the material from running down
when the machine is at rest.
Fig. 2 is a half end-elevation & half section of the same machine.
Having now particularly described the nature of this, my invention & the manner
in which it works I wish it to be distinctly understood that I do not confine
myself to the relative proportions of the several parts as shown on the drawings,
but, what I claim is :-
:
1st. A screening machine, or any mere modification thereof, substantially as
described & illustrated.

page_text: 2nd. The method of suspension of such machines.
3rd. The radial oscillating motion as applied to such machines.
4th. The tapering of the sides towards the lower parts of such machines.
Dated this 13th day of August 1895.
t
.
· Improvements in the Manufacture and Arrangement of Machines
J"
.
for the Sizing of Coal and other Materials.
I, HAMMERSLEY HEENAN, of 4, Chapel Walks, Manchester, in the County of
Lancaster, Engineer, 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:-
.
This invention has reference to the manner in which I construct and arrange a
screening machine, and to its adaption for the sizing of coal and other materials.
In order that my invention and the method of carrying the same into effect may
be the more readily understood, I refer in the following description to the sheet of
drawings appended to the Provisional Specification.
+
:
On such sheet of drawings
1
Figure represents a side elevation of a four sort screening machine constructed
in accordance with my invention;
Figure 2 is an end elevation of the machine with one half in section.
I construct the machine preferably from angle bars and plates of wrought iron
or mild steel in the manner indicated on the drawings. The framing when so
constructed is closed or covered in on two sides, and is suspended from a shaft
supported in suitable bearings placed at or near the top of the machine. By
means of a connecting rod having one end attached near to the bottom of the
framing or by other suitable means, I impart a radial oscillating motion to the
complete framing, the driving power being obtained from an engine or other
.motor..
The machine or framing is tapered towards the bottom on two or more sides, and
the first screen on to which the coal or other material is delivered is fixed at the
upper end of the tapered part, and can thus be made of a larger area than the
lower screens, and the second screen larger than the third screen. In this manner
I vary the areas of the screens to correspond with the quantity of material
delivered upon them.
The material to be screened is delivered first on to a plate (a) from whence under
the shaking motion imparted to the machine it travels over the first riddle or
screen (b). The smaller material falls through the perforations of the screen, but
the larger material passes over the entire length of the screen and is delivered into
a suitable receptacle or on to a belt or carrier.
The material which passes through the screen or riddle (b) falls on to the
inclined dead-plate (c) from the lower end of which it is delivered on to the upper
end of the second riddle (d), and thus a further sorting is effected. In like manner
the material falling through (d) is passed over a third riddle, and a further number
may be employed when necessary.
When the material is conveyed into the machine by means of belts, elevators, or
like appliances, I fix a plate such as (e) under the plate (a) to receive any portion
that may fall past the plate (a). The plate (e) is so inclined as to deliver its
material on to the dead-plate (c). I fix the riddles or screens at such angles as to
prevent the material from running down when the machine is at rest.
I do not limit myself to the relative proportions shown on the drawings, but

page_text: make such modifications as may be necessary to suit the requirements of varying
services.
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. An improved machine for the sizing of coal and other materials consisting of
a framing fitted with inclined riddles or screens and suspended from a horizontal
shaft forming the centre about which a radial oscillating motion is imparted to the
machinery, substantially as described.
2. The construction of a framing for a coal screening or like machine having its
lower end tapered and fitted with riddles or screens having surfaces or areas of
varying sizes corresponding with the varying quantities of coal or other material
delivered upon them substantially as described.
3. The improved general construction and arrangement of radially oscillating
machines for the sizing of coal and for other like purposes substantially as
hereinbefore described and as illustrated in the accompanying drawings.
DAL
1
1000
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicant.