IMPROVEMENTS IN PANS AND APPLIANCES CONNECTED THEREWITH FOR USE WITH BUDDLES FOR TIN AND OTHER MINES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
We EDWARD DAVIES of Hill Cottage West Kirby in the County of Chester,
Engineer and ROBERT TYNDALE HAWS of the Cottage, Kenley in the County of
Surrey, Chartered Accountant, do hereby declare the nature of the said Invention
for IMPROVEMENTS IN PANS AND APPLIANCES CONNECTED THEREWITH FOR USE
WITH BUDDLES FOR TIN AND OTHER MINES to be as follows:-
Heretofore the pans used with buddles have received the water and ore from the
launders at the upper part thereof and have discharged the same through pro-
jecting T or other shaped pipes fixed at the bottom thereof, and such pans have
received their required rotary motion from a separate motor acting thereon through
suitable gearing or connections.
Now according to our Invention we dispense with the separate motor or motors
and convert the pans themselves into motors so that the water entering such pans
shall cause the rotation thereof and shall not be allowed as heretofore simply to
run out therefrom at the bottom without producing any effect on the pans.
In carrying our invention into effect, various arrangements of water motor
apparatus may be attached to the pans, we will however describe one method of
carrying our invention into effect by way of example.
The bottom of the pan we make conical and around the same we fix a number
of arms preferably curved and somewhat smaller at their orifices than at their
inlets and at the same time curved somewhat downwards; at the upper part of the
pan we fix a number of blades so that as the water enters the pan from the launder
it shall strike sideways against such blades and produce rotary motion of the pan,
the water issuing from the curved projecting arms at the bottom of the pan also
assists in giving rotary motion to the pan and the conical form of the bottom
prevents the lodgment in the pan of any ore.
At a suitable height in the sides of the pan we form a number of overflow
apertures which may also be provided with emission arms which would still further
assist in rotating the pan. The pan would be formed with a central tube fixed to
the bottom thereof in a watertight manner and rising to a short distance above the
before mentioned blades; at the upper end of such tube we fix a suitable bearing
to rest on the top of a fixed spindle and we also apply thereto any suitable form of
lubricating apparatus.
EDWARD DAVIES.
ROBERT TYNDALE HAWS.
By Harris & Mills,
23, Southampton Buildings,
Agents,

page_text: COMPLETE SPECIFICATION.
We EDWARD DAVIES of Hill Cottage West Kirby in the County of Chester,
Engineer and ROBERT TYNDALE HAWS of The Cottage, Kenley in the County of
Surrey Chartered Accountant, do hereby declare the nature of the said invention
for IMPROVEMENTS IN PANS AND APPLIANCES CONNECTED THEREWITII FOR USE
WITH BUDDLES FOR TIN AND OTHER MINES and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
Heretofore the pans used with buddles-have received-the water and ore from
stamps through launders at the upper part thereof and have discharged-the-same
through projecting T or other shaped pipes, or through a number of holes in the
bottom of the pans, and such pans have received their required rotary motion from
a separate-inotor-acting thereon-through suitable gearing or connections.
Now according to our Invention we dispense with-the-separate motor or motors
and convert the pans and pipes-themsolves into motions so that the water and ore
-entering such pans or water entering an upright pipe in the centre of-the-said pans.
shall cause the rotation thereof and-shall-not-be allowed as heretofore simply to run
out therefrom at the bottom without producing any effect on the pans.
In carrying our invention into effect various arrangements of water motor
apparatus may be attached to the pans, we will however describe one method of
carrying our invention into effect by way of example.
The bottom of the pan we make conical inside and around the same wo fix a
number of tubular arms preferably curved and smaller at their orifices than at
their inlets and at the same time curved or slanting somewhat downwards; at the
upper part of the pan wo sometimes fix a number of blades so as to form a
horizontal water wheel so that as the mixture of ore and water enters the pan
from the launder it shall strike sideways against such blades and produce rotary
motion of the pan, the water and ore issuing from the curved or straight projecting
tubular arms at the bottom of the pan also assists in giving rotary motion to the
pan and the conical form of the bottom of the pan inside prevents the lodgment in
the pan of any ore.
At a suitable height in the sides of the pan, wo form a number of overflow
apertures which may also be provided with emission arms which would still further
assist in rotating the pan. The pan would be formed with a central tube fixed to
the bottom thereof in a watertight manner and rising to a suitable height therein;
at the upper end of such tube we fix a suitable bearing to rest on the top of a fixed
spindle, and if desired we also apply thereto any suitable form of lubricating
apparatus.
And in order that our said invention may be more clearly understood and
readily carried into effect we will proceed aided by the accompanying Drawings
more fully to describe the same.

page_text: Figure is a 'plan and Figure 3 is a vertical section of parts thereof drawn to a
larger scale.
>
Figure 4 is a vertical section and Figure 5 is a plan showing a slightly modified
construction of parts.
In all the figures like parts are marked with similar letters of reference.
a represents.a buddle and a¹ the head thereof in the contre of which is fixed a base
plato b to which is secured an upright spindle b¹ forming the support for and axis
around which the pan c and its connections revolve. The bottom of the pan c has
fixed thereto a casting c¹ in the centre of which is screwed a vertical pipe c²
surrounding the spindle b¹ and provided with a cap or bearing c³ fixed thereto as
shown or in othor suitable manner. The underside of this cap or bearing c³ is
formed with a conical recess to fit the conically formed top of the spindle b'. c is
an upright pipe fixed in the contre of the pan to hold a head of water and d are
long pipes in connection with such upright pipe c through which the water is
discharged into the buddle a. These pipes d are made to slide on and to fit tightly
the short tubes c forined on the casting c¹ and they are provided with caps d³
which fit tightly on the outer ends thereof. By these means the pipes & can be
made accessible for cleaning by simply removing the caps d whilst such pipes can
be readily removed and replaced for repairs or otherwise.
e are shorter pipes which are in communication with the interior of tho pan d
and discharge the ore and water, delivered to the pan by the launder f, on to the
head a¹ of the buddle.
According to our invention we form or provide these pipes d e with discharge
orifices del at the ends thereof and directed towards one side thereof and the
outlets of such discharge orifices are of smaller internal diameter than that of the
pipes dc. By these means the water and ore entering the pan c and the water
entering the upright pipe by issuing through the orifices of the pipes de, will
cause rotary motion to be given to the pan c.
care overflow apertures formed in the pan c; if desired these apertures may
also be provided with emission pipes of similar character to c which arms would
still further assist in the rotation of the pan.
We also in some cases fix a number of blades c as shown at the upper part of
the pan c so that as the mixture of water and ore enters the pan from the launder f
it shall strike sideways against such blades c and assist in producing rotary motion
to the pan c.
In the form of apparatus shown at Figures 4 and 5 the bottom of the pan c is
formed conical but in that shown at Figures 1, 2 and 3 the pan is formed with a
flat bottom.
g, y, are sweeps which we prefer to connect to tubes g' mounted on the emission
pipes & so that by turning such tubes g' around the pipes & and then fixing them
to the emission pipes d by set screws g, the length to which such sweeps descend
into the buddle can be readily regulated.
We would here remark that although we have shown arrangements which we
prefer to employ in carrying our invention into effect wo do not confine oursolvos
thereto as various other means may be employed to convert the pans into motors
so that the water entering such pans or attachments thereof shall cause their rotation
thereby dispensing with separate motors for communicating rotary motion to such
pans.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
•
1. The improvements in pans and appliances connected therewith for use with
buddles for tin and other mines wheroby such pans are converted into motors
which are rotated by means of the water or water and ore either or both entering
such pans or attachments thereto substantially as herein shown and described and
for the purpose stated.

page_text: 2. The employment in connection with the pans used with buddles for tin and
other mines of emission arms d e and blades c² acting substantially as herein shown
and described and for the purpose stated.
EDWARD DAVIES.
ROBERT TYNDALE HAWS.
By Harris & Mills,
23, Southampton Buildings,
Agents.