IMPROVEMENTS IN TIPPING AND SCREENING APPARATUS FOR COAL AND OTHER MINERALS to be as follows:
Year: 1884

page_text: I EDWARD JONES of Barmby Furnace Cawthorne near Barnsley Yorkshire
Engineer do hereby declare the nature of my said invention for "IMPROVEMENTS
IN TIPPING AND SCREENING APPARATUS FOR COAL AND OTHER MINERALS to be
as follows:-
•
"
This Invention relates firstly to the apparatus for tipping the coal from the tubs
or corves onto the screen, secondly to the construction of the screen bars and thirdly
to the arrangement of the screening apparatus.
The improved tipping apparatus has an automatic hydraulic balance and consists
of a swing plate with one quadrant (or a pair of quadrants) to which is attached a
chain (or rope) this chain is connected to one end of a double ended quadrant
which swings on a centre of the said swing plate, to the other end of the quadrant
is connected a chain and rod with piston or balance weight, the rod and piston
work freely in a cylinder, which is filled or partly filled with water, the piston can
be weighted to balance the varying weights of tubs or corves employed; the swing
plate is fitted with a guard to prevent the tubs or corves falling off; and this guard
is so placed on the swing plate as to admit the greater portion of the tub in front
of the centre on which it turns.
In using this apparatus when the swing plate and tub is tipped the front end
of the double ended quadrant is depressed and the back end raised, the piston in
the cylinder being thereby raised and the water in the said cylinder being forced
from above the piston to the under side, acts as a brake and causes the swing plate
and tub to tip slowly thus preventing the sudden discharge and consequent
breakage of the coal; in this arrangement the tub is brought round near to the
screen and the coal has only a short distance to drop.
The tipping apparatus may have one or a pair of water cylinders pistons, and
quadrants as above described.
The improved screen bars are adjustable for different sizes of coal required, the
adjusting mechanism between each bar consisting of a set of boxes or ferrules in
pairs one sliding within the other, and distended by a spring or springs, a bolt or
pin passing through each pair of ferrules or boxes and being secured and adjusted
by nuts at the end thereof; each screen will be fitted with two or more sets of the
above described boxes, and springs between two bars according to the size of the
screen.

page_text: The sets of boxes and springs can be adjusted simultaneously by bevil or worm
gearing and hand wheel or independently by actuating each set of boxes and
springs and bolts separately. When actuated simultaneously worm wheels will be
fixed on the ends of the bolts or pins which pass through the boxes and springs,
and these worm wheels will be geared into worms fixed on a shaft rotating in
bearings on the side of the screen bars; this shaft will be rotated by a hand wheel
and by it each set of boxes and springs will be actuated simultaneously and the
whole of the screen thereby adjusted.
The improved arrangement of the screening apparatus consists in the employ-
ment of two screens set end to end and preferably at an angle to each other each
screen consisting of two wire riddles of different meshes and one set of the above
described adjustable screen bars.
The two sets of moveable riddles and screens (one on each side), are actuated by
a set of gearing placed centrally between the front. and back set of screens or
otherwise so placed and connected to the screens that the front and back set can be
actuated at the same time and from the same source of motion.
Rollers and bands of ordinary construction are employed to carry the coal from
the screens to the wagons and these are so placed as to carry the coal from the
improved arrangement of screens and are not of themselves novel and do not
form part of this invention otherwise than as arranged in an improved manner.
The arrangement of the screening apparatus above described admits of the whole
being self-contained and mounted on columns ready for erection on the pit bank
but this is not claimed as being novel otherwise than as new combination of the
parts of the tipping and screening apparatus above described for instance the base
of the structure will consist of uprights or columns tied with transverse beams
between and under which will be lines for the railway wagons for the various sizes
of coal to stand, the transverse beams will support the screens, and the bearings for
the rollers and bands which carry the coal from the screens to the wagons.
Columns standing on the base of the structure with transverse beams will
support the tipping apparatus firstly above described and each tier will be floored
and connected together in the ordinary manner.
:
Dated this Eighteenth day of June 1884.

page_text: COMPLETE SPECIFICATION,
I EDWARD JONES of Barmby Furnace, Cawthorne near Barnsley Yorkshire
Engineer do hereby declare the nature of my said Invention for "IMPROVEMENTS
IN TIPPING AND SCREENING APPARATUS FOR COAL AND OTHER MINERALS," 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 firstly to the apparatus for tipping the Coal from the tubs
or corves on to the screen, secondly to the construction of the screen bars, and.
thirdly to the arrangement of the screening apparatus.
The object of my Invention is to tip and screen Coal and deliver the same
according to its several varieties of size and quality from the colliery corve or other
medium of supply into separate trucks or other receptacles by an Improved
arrangement of the tipping gear and screens which economizes labor and reduces.
the proportion of small to large coal and at the same time secures a inore perfect
distribution of the varying sizes and quality of the same.
The general arrangement and details of my Invention may be better ascertained.
on reference to the accompanying sheets of Drawings, in which
Sheet 1. Is a side elevation of the Improved arrangement of Coal screens,
Sheet 2. Is a plan of the same.
Sheet 3. Fig. 1 is an end elevation of the same and Figs. 2, 3 & 4 on the same
sheet, (3), are the side and end elevations and plan of the Improved coal tippler
and appliances, (enlarged), and on'sheet (4) Figs. 5, 6 & 7 are side and end elevations.
and plan of the Improved arrangement of adjustable screen bars fitted with helical
springs and boxes and Figs 8 and 9 are enlarged views of a portion of the screen
bars shewing the spring, spring box or boxes and bolt.
Figs 10, and 11 on Sheet 5 is an alternative arrangement of adjustable screen
bars in which volute springs are substituted for the belical springs and boxes.
Figs 12 and 13. Are enlarged views of a portion of the screen bars shewing the.
volute spring and connections.
The same letters refer to similar parts throughout the several views.
.L
The Improved tipping apparatus (Sheet 3) has an automatic hydraulic balance®
and consists of a Swing plate B, with one quadrant (or a pair of quadrants) C, to
which is attached a' chain (or rope) D, this chain is connected to one end of a
double ended quadrant E, which swings in a centre of the said swing plate, or the
centres may be adjusted at a distance from each other, to the other end of the
quadrant is connected a chain or rod F, with piston or balance weight G, the rod
and piston work freely in a cylinder H, which is filled or partly filled with water,
and may be either open or close at the top, the piston can be weighted to balance
the varying weights of tubs or corves employed, the swing plate is fitted with a
guard or guards I, to prevent the tubs or corves, A, falling off, and the guard or
guards may be made adjustable and be so placed on the swing plate as to admit,
the greater portion of the tub in front of the centre on which it turns,

page_text: -
In using this apparatus, when the swing plate and tub are tipped, the front end
of the double ended quadrant is depressed, and the back end raised, as shewn by-
the dotted lines.
The piston in the cylinder being thereby raised and the water in the said cylinder
being forced from above the piston to the under side, acts as a brake and causes
the swing plate and tub to tip slowly, thus preventing the sudden discharge and
consequent breakage of the Coal, in this arrangement the tub is brought round near
to the screen J, and the Coal has only a short distance to drop.
The tipping apparatus may have one or a pair of water cylinders, pistons and
quadrants as above described.
The Improved screen bars (Sheet 4) are adjustable for different sizes of Coal
required usually from Half Inch to Three Inches in the openings, the adjusting
mechanism between each bar consisting of a set of boxes or ferrules K, in pairs,
one sliding within the other, and distended by a spring or springs L, a bolt, or
pin M, passing through each screen bar, each pair of ferrules or boxes, and springs
in continuation, and being secured, and adjusted by nuts at the end thereof, or the
worm wheels O, may be tapped and screwed on the bolts so as to act as nuts, each
screen will be fitted with two or more sets of the above described boxes, and springs
Between the bars according to the size of the screen.
The sets of boxes and springs can be adjusted simultaneously by bevil or worm
gearing and hand wheel, or independently by actuating each set of boxes and springs
and bolts separately. When actuated simultaneously worm wheels will be fixed on
the ends of the bolts or pins which pass through the boxes and springs, and these
worm wheels will be geared into worms P, fixed on a shaft rotating in bearings on
the side of the screen bars, this shaft will be rotated by a hand Wheel, on the end
of shaft Q, and by it each set of boxes and springs will be actuated simultaneously
and the whole of the screen thereby adjusted.
The Improved arrangement of the screening apparatus consists in the employment
of two screens set end to end and preferably at an angle to each other, as shewn in
Sheet 1, each screen consisting of two wire riddles of different meshes, and one set
of the above described adjustable screen bars.
1
The two sets of moveable riddles S, and screens (one on each side) are actuated
by a set of gearing T, placed centrally between the front and back set of screens
or otherwise so placed and connected to the screens that the front and back set
can be actuated at the same time, and from the same source of motion, the gearing
referred to as shewn on sheet I and marked T comprises a pulley U, fixed upon a
cross shaft marked V, fixed in bearings, between the two screen frames, a second
driving pulley. W, driven from the pulley U, below, by the strap or band X,
and actuating two sets of cams or eccentrics with their levers and connections
marked Y, Z.
:
Rollers and bands of, ordinary construction are employed to carry the coal from
the screens to the wagons, and these are so placed as to carry the Coal from the
Improved arrangement of screens, and are not of themselves novel and do not form
part of this Invention otherwise than as arranged in an Improved manner.
The arrangement of the screening apparatus above described admits of the whole
being self contained and mounted on columns ready for erection on the pit bank,
but this is not claimed as being novel otherwise than as a new combination of the
parts of the tipping and screening apparatus above described, for instance the base
of the structure will consist of uprights or columns tied with transverse beams
between and under which will be Lines for the Railway Wagons for the various
sizes of coal to stand, the transverse beams will support the screens, and the
bearings for the rollers and bands which carry the coal from the screens to
the wagons.
:
Columns standing on the base of the structure with transverse beams will
support the tipping apparatus firstly 'above described and each tier will be floored-

page_text: In further explanation of the process the wagon on the centre line receives the
smudge which is deposited from the screens and riddles into the hopper which is
shewn immediately above the wagon, the wagons next on either side receive the
pea nuts which fall from the screens and riddles on to the travelling bands which
are actuated by the rollers shewn in position on either side of the hopper, the
wagons next on either side of those containing the pea nuts receive the nuts or
cobbles which fall through the screens from travelling bands above, similar to those
last described, and the outside wagons of all, receive the large coal which does not
pass through the screens, likewise conveyed to them by travelling bands.
Having now particularly described and ascertained the nature of my Invention
and in what manner the same is to be performed, I declare that what I claim is
(1) An Improved tipping apparatus, automatic in its action, which is regulated
by the employment of a hydraulic cylinder, double quadrant, chain fittings 'and
connections substantially as herein described and illustrated.
(2) The Improved arrangement of adjustable screen bars, either by the employ-
ment of helical springs and boxes, or volute springs and boxes, together with the
actuating mechanism, by which they may be moved or adjusted either separately
or simultaneously, substantially as herein described and illustrated.
(3) The arrangement of coal screening apparatus comprising one or more of the
Improved tipplers as herein described, in combination with one or more sets of
the adjustable screen bars, placed (where more than one set are used), at an angle
back to back as shewn in Sheet 1, or otherwise, such arrangement of tipping
apparatus and adjustable screen bars, in combination with any of the existing
arrangements for screening and separating coal as ordinarily in use substantially as
herein described and illustrated.
2
R. HEBER RUDFORD,
Agent for the Applicant.