Im- PROVEMENTS IN Apparatus FOR TIPPING COAL AND OTHER MINERALS
Year: 1875

page_text: LETTERS PATENT to James Burrows and Henry Flint, both of Wigan,
in the County of Lancaster, Engineers, for the Invention of "Im-
PROVEMENTS IN Apparatus FOR TIPPING COAL AND OTHER MINERALS."
Sealed the 7th March 1876, and dated the 22nd September 1875.
PROVISIONAL SPECIFICATION left by the said James Burrows and
Henry Flint at the Office of the Commissioners of Patents, with
their Petition, on the 22nd September 1875.
We, JAMES BURROWS and HENRY FLINT, both of Wigan, in the
County of Lancaster, Engineers, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN APPARATUS FOR TIPPING COAL AND OTHER
MINERALS," to be as follows:-
In the apparatus now in use for tipping coal and other minerals the
box in which the tub is run from the bank is open at the top, and when
the box with the tub is swivelled over to discharge the coal on to the
screen the coals acquire a considerable momentum in falling, and con-
sequently they are splintered or broken, thereby causing waste. Now
our Invention consists in closing the upper part of the box with a cover

page_text: and in placing a lid at the top to prevent the coals from falling on to the
screen until the lid is opened; this opening of the lid is either self-
acting by means of a projection on the lid coming in contact with the
side of the screen or by means of a catch which is liberated by a chain
or rod actuated by hand from the bank or from the bottom of the b
screen.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Burrows and Henry Flint in the Great
Seal Patent Office on the 21st March 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, James 1
BURROWS and HENRY FLINT, both of Wigan, in the County of Lan-
caster, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of September, in
the year of our Lord One thousand eight hundred and seventy-five, in 1
the thirty-ninth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said James Burrows and Henry
Flint, Her special licence that we, the said James Burrows and Henry
Flint, our executors, administrators, and assigns, or such others as we,
the said James Burrows and Henry Flint, our executors, administrators, 2
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IxPROVEMENTS IN APPARATUS FOR 2
TIPPING COAL AND OTHER MINERALS," upon the condition (amongst others)
that we, the said James Burrows and Henry Flint, our executors or
administrators, by an instrument in writing under our, or their, or one
of our or their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the g
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that we, the said James Burrows and Henry Flint,
do hereby declare the nature of our said Invention, and in what manner 8

page_text: the same is to be performed, to be particularly described and ascer-
tained in and by the following statement (that is to say):-
In the apparatus now in use for tipping coal and other minerals the
box in which the tub is run from the bank is open at the top, and when
the box with the tub is swivelled over to discharge the coal on to the
screen the coals acquire a considerable momentum in falling, and con-
sequently they are splintered or broken, thereby causing waste. Now
our Invention consists in closing the upper part of the box with a cover
and in placing a lid at the top to prevent the coals from falling on to
the screen until the lid is opened; this opening of the lid is either self-
acting by means of a projection on the lid coming in contact with the
side of the screen or by means of a catch which is liberated by a chain
or rod actuated by hand from the bank or from the bottom of the
screen.
And in order that our Invention may be fully understood and readily
carried into operation, we will proceed to describe the accompanying
Sheet of Drawings, in which Fig. 1 is a side view, and Fig. 2 a front
view of our improved apparatus; Fig. 3 is a detached view of part of
the same.
a, a, is the flooring and framework on the bank; b, the tub; c, c, the
bearings in which the tippler swivels; g, the break lever; and dis the
screen; all these parts are made as usual.
The box or tippler e instead of being open at the top as now customary
is provided with an angle-shaped cover e¹ and with a lid e' which is
secured by the latches e³; these latches are released to allow the lid e³ to
open by means of the rod ƒ, the lower end of which catches on a stud
projecting from the bottom of the tippler or by the latches coming in
contact, with projections from the sides of the screen, or by any other
suitable mechanical or other contrivance.
The mode of operation is as follows, and the Drawing, Fig. 1, repre-
sents the parts in the positions they occupy when the tippler e has been
swivelled over with the tub 6; the coal from the tub has now filled the
end of the tippler, but it cannot fall out on to the screen d until the
lid eª is opened, and this is effected by the banksman releasing the end
of the rod f from the stud on which it catches, or by the latches e³
coming in contact with the projections on the sides of the screen; thus
it is evident that the door may be opened simultaneously with the fall of

page_text: the tippler or an interval of time allowed. By this improved apparatus as
soon as the lid is opened the coals slide gradually from the tippler on to
the screen, and the splintering or breaking of the coal which is unavoid-
able under the old system is entirely or to a great extent avoided.
In order to render our improved tippler applicable for larger or smaller &
tubs, we apply a loose lever to one of the trunnions of the tippler, and
connect this lever to a small cylinder supplied with steam, air, or water;
there is also a lever fast to the same trunnion, and when the tippler
requires assistance to swivel it over, the power from the cylinder is
applied to the end of the loose lever, which is then brought against the 1
fast lever, and so turns the tippler until it falls over by its own gravity.
Having thus stated the nature of our Invention, and described the
manner of performing the same, we declare that we claim as our im-
provements in apparatus for tipping coal or other minerals,-
First. Covering the upper part of the tippler and the lid e³ with the 1
mechanism for releasing it, as shewn and described.
And, Secondly. The apparatus described for making the tippler
applicable for tubs of various sizes.
In witness whereof, we, the said James Burrows and Henry Flint,
have hereto set our hands and seals, this Fifteenth day of March,
One thousand eight hundred and seventy-six.