IMPROVEMENTS IN THE CONSTRUCTION OF KICKUPS' OR TIPPING CRADLES, AND IN THE APPLIANCES TO BE USED THEREWITH
Year: 1876

page_text: LETTERS PATENT to Walter Geoffrey Jackson, of Saltburn-by-the-Sea, in the
County of York, for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION
OF KICKUPS' OR TIPPING CRADLES, AND IN THE APPLIANCES TO BE USED
THEREWITH."
Scaled the 26th May 1877, and dated the 30th November 1876.
PROVISIONAL SPECIFICATION left by the said Walter Geoffrey Jackson at
the Office of the Commissioners of Patents on the 30th November 1876.
WALTER GEOFFREY JACKSON, of Saltburn-by-the-Sea, in the County of York.
"IMPROVEMENTS IN THE CONSTRUCTION OF KICKUPS OR TIPPING CRADLES, AND
IN THE APPLIANCES TO BE USED THEREWITH."
This Invention has for its object the preventing the breakage of coal, which the
use of the ordinary kickup necessarily entails, arising from the falling of the coal
therefrom into the screens.
This object 1 effect in the following manner-On to the top of the ordinary
kickup a lid or flap is hinged at the front end, or at that end into which the coal
tub is entered. This lid or flap remains shut and so prevents the coal from falling
or being thrown out of the tub while the tub is being turned upside down, but at a
certain point such lid or flap opens itself and allows the coal to slide down the
underside of the lid quietly on to the screen without any fall. On the tub being
emptied and coming back to its original position in the ordinary manner the lid
again closes itself.
One of the principle features of my Invention is the automatic opening and
shutting of such lid or flap, which is effected without employing catches or other
similar mechanism, all of which is very likely to get out of order and become useless
owing to the exceedingly rough usage to which the kickups or tipping cradles aro
ordinarily subjected. Instead of such catches or other similar mechanism I attach
to the lid in any suitable manner either at the end opposite the hinged end or in
some other suitable and convenient position (not necessarily on the same plane as
the lid itself) between the hinge and the other end one or more rollers or slides,
which roller or slide or rollers or slides is or are made to run either on a fixed rail
or on any other suitable guide or guides, which guide or rail, guides or rails, are sq

page_text: placed as to form an arc of a circle struck from the centre on which the kickup or
tipping cradle turns for the distance up to which it is desired to keep the lid or flap
closed. At this point the rail or guide rails or guides are continued on at a tangent
to the circle, or they may be placed in any other convenient forin which will afford
the requisite amount of opening necessary to allow of the lid or flap opening and
the coal coming out.
By the use of my improved "kickup" or tipping cradle all breakage of the coal
is entirely avoided, thereby considerably increasing its market value, at the same
time that such improved construction while thoroughly efficient is neither costly or
difficult.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Walter Geoffrey Jackson in the Great Seal Patent Office on the 29th
May 1877.
Walter GeoffrEY JACKSON, of Saltburn-by-the-Sea, in the County of York.
"IMPROVEMENTS IN THE CONSTRUCTION OF KICKUPS' OR TIPPING CRADLES, AND
IN THE APPLIANCES TO BE USED THEREWITII."
This Invention has for its object the preventing the breakage of coal, which the
use of the ordinary kickup necessarily entails, arising from the falling of the coal
therefrom on to the screens.
And in order that my said Invention may be better understood and practically
carried into effect, I will now, with the aid of the accompanying Drawings, whercon
similar letters of reference indicate corresponding parts, proceed more particularly to
describe and ascertain the nature thereof.
Figure 1 of such Drawings shews a side elevation of my improved apparatus
applied to a tipping cradle; Figure 2 shows a plan view thereof, and Figure 3 an
end elevation thereof.
I proceed in the following manner-On to the top of the ordinary kickup a lid
or flap A is hinged at the front end a', or at that end into which the coal tub G
indicated by dotted lines in Figure 1 is entered. This lid or flap A remains shut
while the tub is being tilted, and so prevents the coal from falling or being thrown
out of the tub during this operation, but upon the rollers B arriving at the point
marked E, Figure 1, such lid or flap begins to open automatically, and so continues
to open until it reaches the point F, thus allowing the coal to slide down the under-
side of the lid quietly on to the screen without any fall. On the tub being emptied
and coming back to its original position in the ordinary manner the lid A auto-
matically closes itself.
One of the principal features of my Invention is the automatic opening and
shutting of such lid or flap A, which is effected without employing catches or other
similar mechanism, all of which is very likely to get out of order and become useless,
owing to the exceedingly rough usage to which the kickups or tipping cradles are
ordinarily subjected. Instead of such catches or other similar mechanisın I attach
to the lid in any suitable manner either at the end opposite the hinged end or in
some other suitable and convenient position (not necessarily on the same plane as
the lid itself) between the hinge and the other end one or more rollers or slides B,
which roller or slide or rollers or slides is or are made to run either on a fixed rail
or rails C or on any other suitable guide or guides, which guide or rail, guides or
rails are so placed as to form an arc of a circle struck from the centre d', on which
the kickup or tipping cradle turns for the distance up to which it is desired to keep
the lid or flap closed. At this point E the rail or guide, rails or guides, are
continued on to F at a tangent to the circle, or they may be placed in any other
convenient form which will afford the requisite amount of opening necessary to
allow of the lid or flap A opening and the coal coming out.

page_text: By the use of my improved "kickup" or tipping cradle all breakage of the coal
is entirely avoided, thereby considerably increasing its market value, at the same
time that such improved construction while thoroughly efficient is neither costly or
difficult and can be adapted to any ordinary kickup.
Having now particularly described and ascertained the nature of my said Invention
and the manner of carrying the same into effect, I would have it understood that I
do not confine myself to the precise details herein-before specified and illustrated by
the accompanying Drawings, as the same may be varied without departing from
the principle of my Invention, but what I claim is, the construction, adaptation,
and use of a self-acting lid applicable to tipping cradles, the action of which lid is
controlled and regulated by a suitable roller or rollers, slide or slides, running on a
fixed rail or rails, or other suitable guide or guides so placed that the lid remains
closed until the tipping cradle is inverted, when its contents are gradually and
continuously discharged over the inclined plane formed by the open lid itself.
In witness whereof, I, the said Walter Geoffrey Jackson, have hereunto set
my hand and seal this Twenty-ninth day of May, in the year of our Lord
One thousand eight hundred and seventy-seven.
W. G. JACKSON. (L.S.)