Improvements in and connected with Rotary Tipplers for Discharging Coal or other Minerals or Materials.
Year: 1897

page_text: Date of Application, 4th May, 1897
Complete Specification Left, 4th Feb., 1898-Accepted, 4th May,
1898
Improvements in and connected with Rotary Tipplers for Discharging
Coal or other Minerals or Materials.
I, CUTIIBERT BURNETT, of Fallowfield, South Hetton, in the County of Durham,
Engineer, do hereby declare the nature of this invention to be as follows:
A chief object of this invention is to effect the discharge of coal or other
minerals or materials on to fixed or movable screens or into trucks or other places
in as gentle and even a manner as possible so as to avoid breakage of the coal or
other material. Another important object is to convey the emptied tubs away and
to enter the full tub in a simple and effective manner.
In Wood and Burnett's Patent Specification No. 2949 of 1894 Fig. 6 shews a
rotary tippler with variable speed, and which to some extent attains the first named
object, as the speed of rotation of tippler is reduced during the time of delivery
of the coal and accelerated during the other part of the rotation.
The present invention however goes further and also overcomes the drawback of
the unavoidable drop of the coal from the lip of the tub to the screen or screen.
hopper.
Instead of as heretofore rotating the annular tippler and the tub within it
around a fulcrum at or near the centre of the tippler the fulcrum of rotation
according to this present invention is situated at or near the top edge of the
delivery side of the tub, and the tippler and its moving gear are constructed
accordingly so that the tub is gradually tilted around the said fulcrum and thus
the coal falls or flows gently out of the tub, and when tilted so far that the tub
has been emptied self acting means may come into play whereby the tippler and
tub are returned to the original position, by preference at a quick speed, the empty
tub returned to the mine and a filled tub entered into the tippler which is then
moved so as to tilt the tub, and so on. But the aforesaid means need not neces-
sarily be self acting.
To carry out this mode of action various arrangements of apparatus may
evidently be constructed. The following constitutes one suitable form of apparatus.
The tippler has its fulorum shaft in two upright standards mounted on a bedplate
between which standards the tippler can swing. The tippler consists mainly of a
floor part with mails for the tub to run and rest on, and two upright frames fixed
on the floor part and which have eyes at their upper ends and are keyed on to the
fulcrum shaft. To swing the tippler many different devices may be used. In one
arrangement a curved sweep is fixed to or made in one with one of the tippler
frames and a chain or rope is fixed to the upper end thereof and guided in a groove
in its edge such chain passing over a pulley block and having its end fastened to
the framing, or other fixed object. The pulley is mounted on the piston rod of a
steam or hydraulic cylinder and has a tappet which when the piston has pulled
the tippler frame so far round at a suitably slow speed that the tub has been
emptied comes against a lever or part of a tumbling bob which reverses the slide
"

page_text: or other valve, and allows the tippler to swing back quickly against a stop into its
original position. The sweep is mounted eccentrically or made with a curve to suit
the variable speed desired. The sweep forms a rail for a pulley to run on which
is connected to a swinging inclined piece of tramway track upon which the last
emptied tub has been discharged the tub coming against a stop rod rising from the
heapshead or pit head level and passing up between the rails on the swinging tram-
way, but when the tippler is being tilted the said tramway track is raised by the
pulley on the sweep and the tub will then get clear of the stop rod and run off on
to the tramway proper thus making room for the next emptied tub from the tippler.
The tramway slopes from here down to the pit mouth or drift as the case may be.
This arrangement of rising and falling tramway may also be applied to other
constructions of tipplers.
Instead of a steam or hydraulic cylinder a drum with friction clutch may be
used and instead of operating the rising and falling tramway as described a separate
drum may be employed but the same friction clutch would act for both drums.
For working the apparatus automatically by one arrangement a weighted lever
is employed provided with suitable stops for engaging with the leading axles of the
two full tubs nearest the tippler on the entry side of same, the fulcrum of said lever
being mid-way between the stops and the lever extended to centre of tippler floor
underneath and in centre of tramway. This end of lever may be provided with a
roller for the bottom of tippler to strike against, the tippler in falling depressing
the said lever and so reversing the stops the effect of which is to liberate the first
tub and keep the second and following tubs back.
The released tub will now run down the short incline on to the tippler and by
its momentum force the empty tub off the tippler on to the rising and falling tram-
way. The empty tub before arriving at the stop will by contact with a wiper or
lever in passing, change the position of the tumbling bob and so start the tippler
(either by giving steam or water to the cylinder, or by putting the friction clutch
into gear). The tippler will now be raised and the lever will also rise a certain
distance with it and so change the position of the stops and allow what was the
second full tub to advance to the position previously held by the tub referred to as
the first full tub. The tippler having risen to its proper height will reverse the
tumbling bob and so change the valve or release the clutch as the case may be and
the tippler will fall with the empty tub and again depress the lever and so relcase
another full tub which will run on to the tippler and displace the empty tub and
this round of operations will be repeated on each rise and fall of the tippler.
In order to prevent the coal from falling over the ends of the tubs I provide the
shoot or the like with pivotted side guards or a cover which are or is normally in
a raised position to allow the tub to pass underneath. Then this cover may bo
operated automatically or otherwise to come or swing down fair with the two ends
of the tub and to rise with same during the discharge of the contents.
The tippler may be arranged to discharge directly upon a fixed or movable
screen or into a waggon or on to a sloping shoot leading thereto.
By this construction of tippler, considerably more height is afforded. This will
be of great advantage in arranging the plant for the grading and cleaning of the coal
as in most instances the nut belt or belts may be arranged beneath the ordinary
cleaning belt for the best coal.
Dated this Emurth day of You 1907

page_text: Improvements in and connected with Rotary Tipplers for Discharging
Coal or other Minerals or Materials.
I, CUTHBERT BURNETT, of Fallowfield, South Hetton, in the County of Durham,
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:-
The chief object of this invention is to effect the discharge of coal' or other
minerals or materials on to fixed or movable screens or into trucks or other places
in as gentle and even a manner as possible so as to avoid breakage of the coal or
other material. Another important object is to convey the emptied tubs away and
to enter the full tub in a simple and effective manner.
In Wood and Burnett's Patent Specification No. 2949 of 1894 Fig. 6 shows a
rotary tippler with variable speed, and which to some extent attains the first named
object, as the speed of rotation of tippler is reduced during the time of delivery
of the coal and accelerated during the other part of the rotation.
The present invention however goes further and also overcomes the drawback of
the unavoidable drop of the coal from the lip of the tub to the screen or screen
hopper.
Instead of as herctofore rotating the annular tippler and the tub within it
around a fulcram at or near the centre of the tippler the fulcrum of rotation
according to this present invention is situated at or near the top edge of the
delivery side of the tub, and the tippler and its moving gear are constructed
accordingly so that the tub is gradually tilted around the said fulorum and thus
tho coal falls or flows gently out of the tub; and when tilted so far that the tub
has been emptied, selfacting means may come into play whereby the tippler and
tub are returned to the original position, by preference at a quick speed, the empty
tub returned to the mine and a filled tub entered into the tippler which is then
moved so as to tilt the tub and so on. But the aforesaid means need not neces-
sarily be self-acting.
To carry out this mode af action various arrangements of apparatus may evidently
be constructed.
Fig. 1 of the drawings is a side view of one suitable form of apparatus. The
tippler has its fulcrum shaft A in two upright standards B mounted on a floor or
bed plate C between which standards the tippler can swing. The tippler consists
mainly of a floor part 1) with rails D¹ for the tub wheels E to run and rest on and
two upright frames D³ fixed on the floor part D or in one therewith as here shown
having eyes at their upper ends keyed on to the fulcrum shaft A. To swing the
tippler many different devices may be used. In the arrangement here shown a
curved sweep F is fixed to or made in one with one of the tippler frames D2 and a
chain For rope is fixed to the upper end thereof and guided in a groove in its edge,
such chain passing over a pulley F and having its end fastened to the block 13 or
other fixed object. The pulley F is mounted on the piston rod G of a steam or
hydraulic cylinder G₁, and G³ is a tappet which when the piston has pulled the
tippler frame D D and sweep I so far round at a suitably slow speed into the
position shown in dotted lines that the tub E has been emptied, comes against a
lever H or part of a tumbling bob H' which reverses the slide or other valve by
acting on the slide valve rod I and allows the tippler to swing back quickly against
a stop into its original position. I is a starting lever connected to the rod I.
The sweep F is mounted eccentrically or made with a curve to suit the variable

page_text: speed desired. K is a trough for the discharge of the coal from the tub E' and D³
is a counterbalance weight.
In order to prevent the coal from falling over the ends of the tubs I provide
the tippler with a hinged side guard D³, capable of swinging inward only, at the
ingoing end of the tippler and a fixed guard at the other or out-going end. The
coals heaped on the top of the tub will swing the guard D3 back as the tub enters
the tippler and the guard will drop down when the tub has passed right in.
Figures 2 and 2 show in elevation the arrangement of the rotary tippler in con-
nection with an automatic swinging or hinged tramway track. A flange F5 on the
eccentric sweep F forms a rail for a pulley F to run on which is connected to a
swinging or hinged inclined piece R of a tramway track upon which the last
emptied tub is discharged. When the tippler is being tilted the said hinged
portion R of the tramway track is raised by the pulley F+ by reason of the
eccentricity of the sweep F so that the tub will run off on to the tramway
proper R, thus making room for the next emptied tub from the tippler. The tram-
way slopes from here down to the pit mouth or drift as the case may be..
This arrangement of rising and falling tramway may also be applied to other
constructions of tipplers.
Instead of operating the rotary tippler by means of a steam or hydraulic cylinder
as shewn in Fig. 1 I may, as shewn in the elevation Fig. 3 and plan Fig. 4, employ
a winding drum M mounted on a shaft M connected by a clutch O to a shaft M³
which may be driven from any convenient source of power by means, for instance,.
of the pulley M³. The chain after passing around the sweep F is carried over
a pulley F mounted on a shaft in suitable framing at a convenient height abova
the tippler and thence to the winding drum M. A chain is attached to the end
of the hinged portion R of the tramway track and is carried over a pulley F8
mounted on a shaft in suitable framing at or about the same height as the said
pulley F and thence to a winding drum N also mounted on the shaft M. By this
means the tippler and the rising and falling tramway are operated simultaneously.
The clutch O may be thrown into and out of gear by means of a hand lever I'
keyed on a horizontal spindle U which extends beneath the hinged portion R.of
the tramway track and which is there provided with another lever Us rising to the
level of the tub axles for a purpose to be hereinafter explained.
The hand lever I operates the clutch O by means of a connecting rod Us which is
pivotally connected to one arm U of a three-armed lever U U³ Uº, or its
equivalent. The arm Us engages with the sliding collar of the clutch O on the
shaft M, while the arm U is connected by a chain U passing over a pulley U8 to
the end of the hinged portion R of the trainway track for a purpose to be herein-
after explained.
The operations of feeding the tippler with loaded tubs, tipping the coal and
returning the empty tubs to the pit mouth or drift, as the case may be, may be
performed continuously and controlled automatically in the following manner.
The tramway track leading to the tippler D Figs. 3 and 4 is laid with a down
grade Qon which, at a convenient point, is pivotted a three-armed lever P, P1, P
or its equivalent, the arms P₁, 1 being so formed and arranged as to act as stops
for engaging alternately with the leading or front axle of the loaded tub nearest
to the tippler D and with that of the loaded tub next following, after the manner
of the escapement motion of a clock. The arm P is connected by a rod P to one arm
of a double-armed lever L the other arm of which lever is provided with a roller L¹.
The lever L is so arranged that the sweep F of the tippler D strikes the roller L¹
just before the tippler has descended to rail level Q₁ thereby causing the
levers P, P1, P³ to assume the position shown in full lines Fig. 3 thus releasing the
leading axle of the loaded tub 2, shown in dotted lines, from the lever stop P³
while the lever. stop P' engages with the axle of the next following loaded tub 3
preventing it, and so many loaded tubs as may be behind it on the incline Q, from
moving. The tub 2 on being released will run down the incline Q towards and on
to the tippler D and by its momentum force the tub 1 which has just been emptied

page_text: off the tippler and on to the hinged portion R of the tramway track. Before the
empty tub 1 comes to a stop on the hinged track R the leading axle thereof strikes
the lever Us already referred to thereby putting the clutch O into gear, where-
upon the tub 1 is brought to rest by a weighted stop lever S, pivotted to the hinged
portion R of the tramway track, which engages with the leading axle thereof.
It will be understood that the lever le may, by suitable gearing, operate the
valve rod I so as to close the exhaust valve and open the admission valve of the
steam or hydraulic cylinder G' when the arrangement described with reference to
the Figs. 1, 2 and 2 is preferred for raising the tippler D and the hinged portion R
of the tramway track.
The clutch having been put into gear as just described the tippler D with
the loaded tub 2 and the hinged portion R of the tramway track with the empty
tub 1 are raised by the winding drums M and N respectively.
When the empty tub 1 has been raised to the desired height, for example as
shown in dotted lines Fig. 3, a 'chain I¹, one end of which is secured to the stop
arm of the lever S while the other end is secured to soine convenient fixed point at
or below the rail level Q' of the tippler, becomes taut and lowers the stop end of the
lever S relatively to the axle of the tub 1, thus permitting said tub to run down the
inclined hinged track R on to the switch-back track R and thence down the
inclined track T Fig. 4 back to the pit mouth to be filled again. Immediately
the tub 1 has passed the junction of the hinged tramway R with the tramway
track R, the chain U7, already referred to, becomes taut and operates the three-
armed lever U U³ U putting the clutch O out of gear whereupon the hinged tram-
way R and the tippler D fall to rail level.Q. If the arrangement is preferred
which has been described with reference to Figs. 1, 2 and 2 the chain U7 on becom
the
ing taut may so operate the valve rod I as to close the admission valve and open
exhaust valve of the steam or hydraulic cylinder G¹.
The hinged tramway R may be counter-balanced in any convenient manner or
a suitable break applied to the shaft 'M'.
Meanwhile, 50 soon as the tippler had risen so high that the sweep F no longer
touched the roller L', the counter-weight P3 altered the position of the stop
levers P1, P³ to that shown in dotted lines thus lowering the stop end of lever Pl
and releasing the tub 3 so that it runs down the incline Q until it comes into con-
tact with the stop end, on lever P³, which had simultaneously been raised, and
finally raised the roller L' on the lever L. The tub 4 then occupied the position
that tub 3 had previously occupied and so on with the remainder of the tubs
on the incline Q.
As the tippler D falls, the sweep F, just before the tippler reaches rail level Q₁
strikes and depresses the raised roller L on the lever L thus reversing the position
of the stop levers P P from that shown in dotted lines to that shown in full linės
thus releasing tub 3 which as just explained had taken the position formerly
occupied by tub 2 and which then runs down the incline Q on to the tippler forcing
the now empty tub 2 on to the hinged portion R of the tramway track the leading
axle of which strikes the lever Us throwing the clutch O into gear thus again
raising the tippler D with the loaded tub and the hinged portion R of the tramway
track with the empty tub; and this round of operations will be repeated on each
rise and fall of the tippler.
This arrangement of rising and falling tramway and apparatus for controlling
the supply of loaded tubs to the tippler may also be applied to other constructions
of tipplers or equivalent coal tub emptying apparatus.
Fig. 5 is a plan view showing a circular ended track to and from the pit.
Fig. 6 is a side view and Fig. 7 a plan of a track where the line leading to the
tippler is level, in which case the tubs would be pushed on by hand the stop
levers P, P being dispensed with but the starting and stopping gear would be
automatic.
Instead of having a self-acting starting gear I may in all the preceding cases

page_text: start by hand while the reversing is preferably done automatically, that is to say
when the tub has been emptied and the empty tub started from the hinged track the
track and tub are dropped back by the chain Ureversing the clutch O.
The tippler may be arranged to discharge directly upon a fixed or movable screen
or into a waggon or on to a sloping shoot leading thereto.
By the construction hereinbefore described considerably more height is afforded.
This will be of great advantage in arranging the plant for the grading and cleaning
of the coal, as in most instance the nut belt or belts may be arranged beneath the
ordinary cleaning belt for the best coal.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is:-
1. A rotary tippler having its fulcrum at or near the top edge of the delivery
side of the tub substantially as and for the purpose set forth.
2. A rotary tippler having its fulcrum at or near the top edge of the delivery
side of the tub and provided with or connected with appliances for giving it a slow
speed when discharging the coal from the tub and a quick speed when returning
into its original position substantially as set forth.
3. In a rotary tippler the sweep F of the form described for the purpose set forth.
4. In a rotary tippler the fixed flap at the exit end and the hinged flap D³ at
the entry end for the purpose set forth.
5. In combination with a rotary tippler having a sweep or part such as F lever
gear actuated by the sweep for admitting one full tub after the other on a sloping
track at the entry end of the tippler into the tippler and pushing the tub that has
just been emptied out of the tippler substantially as set forth.
6. In combination with a rotary tippler or equivalent coal tub emptying appa-
ratus a hinged tramway track at the exit end of the tippler and means for raising
lowered by the said sweep substantially as set forth.
7. In combination with a rotary tippler having a sweep or part such as F a
hinged tramway track at the exit end of the tippler, said track being raised and
lowered by the said sweep substantially as set forth.
8. In combination with a rotary tippler or equivalent coal tub emptying appa-
ratus a hinged tramway track at the exit end of the tippler, means for raising and
lowering said track and means for admitting one full tub after the other on a
sloping track at the entry end of the tippler into the tippler and pushing the tub
that has just been emptied out of the tippler substantially as set forth.
9. The construction of rotary tippler shewn and described.
10. The construction of combined rotary tippler driving gear, hinged track lift-
ing gear and full tub admitting gear substantially as described and shown.
Dated this Fourth day of February 1898.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.