Rotary Tippler.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Rotary Tippler.
I, FRED TURNBULL Oswald House Spennymoor County of Durham Draughtsman
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved form of machine for tipping or teeming tubs,
corves, wagons or the like containing coal, stone or other materials with particular
reference to coal. Also to the provision of some simple means by which a tippler
may be set in motion and on the completion of one rotation be brought to rest
automatically at such a point as will admit of the empty tub's being pushed out of the
tippler by the incoming full tub.
It is desirable that tipplers as used for teeming or tipping coal or other material,
requiring to be distributed more or less evenly over a screen, or other surface, should
be provided with an arrangement for changing the speed during each revolution.
If a slow speed is given to the tippler during the small fraction of a revolution that
the material is being teemed, and afterwards accelerated until the revolution has been
completed, much time may be saved, whilst securing a better distribution of the coal
on the screen, than is the custom at present.
For this purpose I make use of two metal rings, placed at sufficient distance apart
to allow convenient standing room for the tub, and connected together by angle irons,
plates and stays. The inside diameter of each ring is large enough to admit of the
passage of a tub and its load. The peripheries of the rings may be of flat or
V section. The two rings thus connected call the cage. It rests on four or more
rollers, two of which are secured to a driving shaft and give motion to the tippler by
frictional contact with the rings.
Each ring is provided with two peripheries of different diameters capable of
engagement by frictional contact with corresponding peripheries on the driving
rollers; the larger diameter of each ring engaging with the smaller diameter of its
roller, during one portion of the revolution, and the smaller diameter of the rings
with the larger diameter of the rollers during the remaining portion of the revolution.
A slower speed is thus given to the tippler during the first mentioned portion of the
revolution than during the second portion, an uniform speed of driving shaft being
maintained throughout
Whilst one set of peripheries are in contact the other set is prevented from being
so by a certain amount of clearance on the peripheries disengaged. By fixing this
clearance on the ring peripheries at suitable points, the periods for fast and slow
speeds may be duly apportioned.
For the purpose of starting and stopping the tippler, I adopt an arrangement which
may be applied to tipplers of. uniform or variable speed whether driven by friction or
by positive means.
:
It consists of a lever placed in such a position in front of the tippler that, as a
revolution approaches completion, a catch or projection, secured to one of the tippler
rings, comes in contact with the said lever, imparting to it sufficient movement to
disengage a friction clutch fitted to the driving shaft. The friction clutch when in
action conveys motion to the shaft from a sprocket wheel or other motive power.
The latter is keyed to that half of the friction clutch which runs loose, when the tippler
is not in action.

page_text: The aforesaid lever is capable of radial movement in a longitudinal and also in a
transverse direction. The transverse motion enables the attendant to release the lever
from the catch. A longitudinal movement then takes place due to a balance weight
or spring. The latter at the same time pressing the friction clutch into action, and
starting the tippler on its rotation.
When the tippler has almost completed its rotation the clutch is disengaged by the
action of the catch as above described.
A right and left handed screw is conveniently situated between the lever and the
clutch so that the lever may be adjusted for the catch to strike it, at the desired point
for gently arresting the motion of the tippler on the completion of its rotation.
In the case of four rollers only being used to support the cage, I may place the two
driving rollers nearer to the vertical centre line of the tippler than the two remaining
anti-friction rollers. By this arrangement more friction takes place at the points of
contact of the rings and driving rollers.
Dated this Sixteenth day of January 1896
COMPLETE SPECIFICATION..
Rotary Tippler.
I, FRED TURNBULL, Draughtsman of Oswald House Spennymoor in the County of
Durham 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 :-
This invention relates to an improved form of machine for tipping or teeming tubs,
corves, wagons, or the like, containing coal, stone, or other materials, with particular
reference to coal; also to the provision of some simple means, by which a tippler may
be set in motion, and, on the completion of one rotation, be brought to rest
automatically, at such a point as will admit of the empty tub being pushed out of
the tippler, at the opposite end to that at which it entered, by the incoming full tub.
It is desirable that tipplers, as are used for tipping or teeming coals or other
materials requiring to be distributed more or less evenly, over a screen or other
surface, should be provided with an arrangement for automatically changing the
speed during each rotation. If a relatively slow speed be given to the tippler during
the fraction of a rotation that the coals are leaving the tub, and afterwards accelerated
until the rotation be completed, much time is saved, whilst securing a better
distribution of the coals on the screen than is the practice at present.
The construction and design of this invention is fully shown & described in the
accompanying drawings and this specification which illustrate a tippler adapted to an
ordinary tub or corve as is used in coal mines.
Referring to the drawings
Fig. 1 is an end elevation, Fig. 2 a side elevation and Fig. 3 a plan of the tippler ;
Figs. 4 and 6 show the circular end rings of the tippler in relation to the supporting
rollers and
Figs. 5, 7, & 8, are sections of the rings and rollers together.
The same letters indicate the same parts in each of the figures..
A, B and A¹ B¹ are two metal rings, each having two peripheries of different
diameters A and B ; the peripheries may be of any suitable shape as flat, convex or
section, or they may be provided with toothed cogs, so as to engage with rollers
similarly provided, but I prefer to make them flat as shown in the drawings. The rings
are provided with internal projections to which may be secured the framing for holding
the tub, and maintaining the said rings parallel with each other and sufficient distance

page_text: apart to allow of convenient standing room for the tub, in which to tip its load. The
framing is preferably constructed of angles and plates C, C, D and secured to the
rings by rivets or bolts. When one half of a complete rotation has been performed,
and the tippler rings with the tub have become inverted, the tub is suspended from
the angle irons C, C, thus preventing it from falling from the framing. In cases
where the coals are not loaded above the top of the tub, angles may be provided in a
similar manner for catching the top of the tub, or in some cases it may be found
preferable to suspend the tub when inverted by the axles. The rings and framing
thus constructed inay be termed the cage, and rests on two pairs of rollers, E E¹
and F G, F G of which E, E' are anti-friction rollers for the purpose of supporting
the tippler cage on that side at which the coals, or other materials are teemed, the
fixed spindles on which they revolve being quite short so as not to obstruct the fall
of the coals. The rollers F G and F' G' however are keyed to the through driving
shaft S at the requisite distance apart, and are for the double purpose of supporting
the cage and imparting motion to the same by frictional contact with the rings.
The driving rollers each have two peripheries F and G corresponding with the
peripheries of the cage rings, the smaller periphery of each roller, engaging
simultaneously with the larger periphery of the ring (with which it is in contact)
during the period of slow speed and the larger periphery of each roller with the
smaller periphery of the ring during the period of fast speed.
In the
The manner in which these operations are to be performed, will be best understood
by reference to Figs. 4 to 8, the direction of rotation of the rings and the rollers
being shown by the arrows. Figs. 4 and 5 show the arrangement of the rings and
rollers during the period of relatively fast speed and Figs. 6 and 7 of the slow speed.
Referring to Figs. 4 and 5 it will be seen that the larger periphery G of the
roller F G is in frictional contact with the smaller periphery A of the ring, whilst
the smaller periphery F is free from contact with any part of the ring.
course of the rings rotation however as the part B2 approaches the periphery F, the
cage is slightly but gradually raised, and B comes in frictional contact with F, whilst
periphery A is being relieved of contact with roller G. The relation of the rings and
rollers is then as seen in Figs. 6 and 7, when the slow speed is in progress, the
proportionate diameters of the rings and rollers in contact having been changed.
As the rotation proceeds the point B3 passes the roller periphery F, and the ring
periphery A again falls, gradually on to G, the latter imparts a fast speed to the
cage as before.
The periphery B forms the arc of a circle, whose length is decided by the proportion
of the rotation, it is required that B shall be in contact with its corresponding
roller F B and B being the points where the periphery B commences and
terminates respectively. By fixing the points at the desired positions the periods for
relatively fast and slow speeds may be duly apportioned; by preference I place these
points so that ring peripheries B are in contact with roller peripheries F whilst the
coals are being teemed, and ring peripheries A with roller peripheries G during the
remainder of the rotation.
Contact is constantly maintained between A and the anti-friction rollers E as shown
in Fig. 8 which is a section through the roller E and ring A, B.
The whole machine is mounted on a suitable foundation or framework such as the
girders Z, Z'.
Any suitable mechanism may be employed for the purpose of setting the tippler in
motion, but I prefer to make use of that here-in-after described which forms a part
of this invention.
To one end of the spindle L is keyed the lever M and to the other the arm N.
A pivot K is formed on the lever so that the handle M' of the lever is capable of
motion radially, in two directions at right angles to each other. By imparting to the
handle M' as seen in Fig. 1, a slight movement, to the right of the fig. the snug M²
is brought clear of the catch P; the lever M is then made to move towards the tippler,
owing to the weight Q acting through the arms U and N, and the link R. The same
movement of the weight also presses the parts of the friction clutch V together in the

page_text: ordinary manner, and as the belt pulley V or the like, and that half of the friction
clutch to which it is secured, are constantly revolving, motion is conveyed to the
driving shaft S, as long as the friction clutch is in action. This motion is in its turn
communicated to the tippler rings through the rollers on the driving shaft. A rotation
is then performed consisting of fast and slow speeds as here-in-before described.
When one rotation of the tippler is almost completed, the catch P, secured to one end
of the tippler, strikes the lever Mat any desired point of the inclined part M³ of the
lever M and as the small remaining portion of the rotation is being completed the
catch P forces the lever away from the tippler, thus raising the weight Q and releasing
the friction clutch V. Further rotation of the tippler is then prevented by the
catch P coming in contact with the snug M². The tub T may then be pushed out of
the tippler and another one pushed in its place. The same series of operations may
be repeated by the attendant again giving the lever handle a slight pull towards the
right in Fig. 1 and then releasing his hold. The remaining operations, namely:-the
upsetting of the tub, the changing of the speed, and the stopping of the tippler are all
performed automatically by the mechanism shown and described.
The spring M secured to the lever M is for the purpose of bringing back the lever
handle to its original position, after the catch P has passed the snug M².
The point along the inclined part M³ of the lever M at which the catch P strikes
the same may be regulated by means of the link R, which is provided with a right
and left hand screw and nut for this purpose.
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) In a tippler for the purposes described the combination of frictional driving
rollers, each having two peripheries with frictional tippler rings having corresponding
peripheries, arranged for producing relatively fast and slow speeds substantially as
shown and described.
(2) In a tippler for the purposes described the combination of the arrangement of
levers, catches and adjusting link, with a friction clutch, for starting, and automatically
stopping substantially as shown and described.
(3) A tippler constructed and arranged substantially as described and shown in the
accompanying drawings.
Dated this 12th day of October 1896.
FRED TURNBULL.