Improvements in Rotary and other Tipplers.
Year: 1898

page_text: Date of Application, 13th Jan., 1898
Complete Specification Left, 14th Nov., 1898-Accepted, 23rd Dec., 1898
Improvements in Rotary and other Tipplers.
I, CUTHBERT BURNETT, of The Grange, near Durham, in the County of Durham,
Engineer, do hereby declare the nature of this invention to be as follows:-
Heretofore in rotary tipplers the teeming or time of emptying the tub has
occupied a small proportion of a whole rotation. Various means have been pro-
posed for varying the speed during the teeming period whereby the coals have
been discharged with less violence and consequent less damage to them while at
the same time the screening was carried on more effectively.
Now according to my invention I very greatly prolong the time or proportion of
a rotation for teeming, and so much so that I am able to perform the teeming
during the greater part or say even two thirds of a rotation as against say one
third as heretofore. For this purpose instead of discharging. the coal from the
teeming plate on the tippler on to the usual fixed shoot forming the screen hopper
back discharge the coal over and into one or more movable vessels the motion of
same being such as to vary the inclination or fall of same during the time from
commencement of delivery to the moment of stopping the rotation of the tippler.
Thus about one third of a rotation would be taken up by the teeming plate moving
from a vertical upper position to a position for commencing to discharge and the
remaining two thirds would be taken up by delivery on to the screen. The motion
may be imparted either from the tippler itself or from any other suitable moving
machinery in which latter arrangement I may prolong the time of delivery to the
screen to any desired extent.
This movable vessel or vessels may be applied to existing rotary or other tipplers.
In one form or construction I provide a curved scoop-shaped vessel hinged to a
stationary part over the rotary tippler and made with gradually rising sides down
towards its lower or discharging end; at this latter part where its bottom may be
grated its slope would be such that some coal would immediately commence to be
discharged from it before the motion of the scoop commenced. The motion would
be derived from a cam on each end of the tippler frame.
By reason of increasing the time of discharge I am enabled to reduce the size
of the screen or screens.
I, CUTHBERT BURNETT, of The Grange, near Durham, in the County of Durham,
Engineer, do hereby declare the nature of this invention and in what manner the
Price 8d.1

page_text: same is to be performed to be particularly described and ascertained in and by the
following statement:―
Heretofore in rotary tipplers the teeming or time of emptying the tub has
occupied a small proportion of a whole rotation. Various means have been pro-
posed for varying the speed during the teeming period whereby the coals have
been discharged with less violence and consequent less damage to them while at
the same time the screening was carried on more effectively.
Now according to my invention I very greatly prolong the time or proportion of
a rotation for teeming, and so much so that I am able to perform the teeming during
the greater part or say even two thirds of a rotation as against say 1/3 as heretofore.
For this purpose instead of discharging the coal from the teeming plate on the
tippler on to the usual fixed-shoot forming the screen hopper back, I discharge
the coal over and into one or more movable vessels the motion of same being such
as to vary the inclination or fall of same during the time from commencement of
delivery to the moment of stopping the rotation of the tippler. Thus about one
third of a rotation would be taken up by the teeming plate imoving from a vertical
upper-position to a position for commencing to discharge and the remaining two
thirds would be taken up by delivery on to the screen. The motion may be im-
parted either from the tippler itself or from any other suitable moving machinery
in which latter arrangement I may prolong the time of delivery to the screen to
any desired extent.
This movable vessel or vessels may be applied to existing rotary or other tipplers.
The drawing shows one form of construction and as applied to a rotary tippler, A
is a curved scoop shaped vessel hinged at F to a stationary standard shaped part 1
over the rotary tippler and made with gradually rising sides A¹ down towards its
lower or discharging end, at this latter part, where its bottom may be grated,
its slope would be such that some coal would immediately commence to be dis-
charged from it before the motion of the scoop commenced.
The motion would be derived from a cam, or rollers on some part rotating in
unison with the rotary tippler or as shewn here by a cam E, on each end of the
tippler frame D, acting against a roller C on the hinged vessel A, which may be
weighted at G.
By reason of the increase of time of discharge I am enabled to reduce the size
of the screen or screens E.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. The application and use in connection with rotary and other tipplers of a
vessel adapted to receive the coal from the tub in the tippler and to discharge it
on to the shoot or screen, said vessel having such a motion imparted to it that
the time of discharge on to the shoot is very materially lengthened as compared
with the ordinary quick discharge of the coal on to the shoot substantially as set
forth.
2. The application and use in connection with rotary tipplers of a vessel adapted
to receive a variable motion from a part moving in unison with the tippler for the
purpose of materially lengthening the time of discharge substantially as set forth.
3. The construction of apparatus for discharging coal from the tub in the tippler
as described with reference to the drawings.
Dated this Fourteenth day of November 1898
JENSEN & SON;
77, Chancery Lane, London, W.C., Patent Agents.