IMPROVEMENTS IN AND IN APPARATUS FOR EMPTYING THE CONTENTS OF CENTRI- FUGAL MACHINES AND IN SEPARATING LUMPS FROM FINER MATTER IN THE CENTRIFUGAL MACHINE
Year: 1884

page_text: "
PROVISIONAL SPECIFICATION.
I GEORGE HARRISON BOLTON of Widnes in the county of Lancaster Manu-
facturing chemist do hereby declare the nature of the said invention for
IMPROVEMENTS IN AND IN APPARATUS FOR EMPTYING THE CONTENTS OF CENTRI-
FUGAL MACHINES AND IN SEPARATING LUMPS FROM FINER MATTER IN THE
CENTRIFUGAL MACHINE to be as follows :—
"
In the use of a centrifugal machine much time and power are lost by having to
stop the machine, empty it, fill it again, and start it, getting it gradually up to full
speed. Now this invention is designed to save this loss and delay and also to
enable me to separate lumps from finer particles in the centrifugal itself while
running at full speed. Upon the stationary framework of the centrifugal or other
stationary base, I fix an adjustable spout. This spout which has a chisel or gauge-
shaped end, can be made to dip down into the centrifugal cage with its edge facing
the way the machine is rotating.
When the material in the cage is sufficiently operated upon, this spout is guided
against the material sticking on the side of the cage. The immense speed at which
this is rotating forces the material to fly up the spout into any receptacle outside
the machine into which the stream of material may be directed. In this way a
receptacle can be filled, the edge of the spout momentarily withdrawn from the
material, an empty receptacle substituted for the full one and filled in its turn.
Canisters with spouts attached can if desired be used, the spout being guided into
place in the machine by stationary guides. The spouts, if they be not required to
guide the material into any special article, but merely onto the floor, can be flat
like ordinary boards sharpened at the end.
In case it is wanted to separate sand from clay and pebbles, the clay is washed
out in the centrifugal with water, and a fork or skeleton scoop inserted, and the
pebble forked out on the above plan. An ordinary scoop can now be put in and
the sand extracted as above described. In this way lumps can be graded by using
different meshed forks, and can be separated from coarse grains or powder, and
coarse grains can be separated from impalpable powder.
Dated this second day of January 1884.
WM P. THOMPSON & Co.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
I GEORGE HARRISON BOLTON, of Widnes in the county of Lancaster, Manu-
facturing Chemist do hereby declare the nature of my said invention for
"IMPROVEMENTS IN AND IN APPARATUS FOR EMPTYING THE CONTENTS OF CENTRI-
FUGAL MACHINES, AND IN SEPARATING LUMPS FROM FINER MATTER IN THE
CENTRIFUGAL MACHINE" and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :—
In the use of a centrifugal machine much time and power are lost by having to
stop the machine, empty it, fill it again, and start it, getting it gradually up to full
speed. Now this invention is designed to save this loss and delay, and also to
enable me to separate lumps from finer particles in the centrifugal itself while
running at full speed.
It is best described by aid of the accompanying drawings in which Figure 1 is a
front elevation and Figure 2 a side élevation.
The machine is composed of a compound slide A and B fixed to the stationary
framework C of the centrifugal or other stationary base by means of the plate D.
In the drawings for the sake of clearness I have shown the centrifugal in dotted
lines at Figure 2. To the slide B is fixed by means of bracket ba spout E provided
with a chisel or gouge shaped end and is made to dip down into the cage F of the
centrifugal machine with its edge facing the way in which the machine is rotating.
For raising and lowering the compound slide A and B I provided a weighted
lever G pivoted at g to a supporting bracket & cast on the plate D and the end gl
is connected to a snug a cast on the slide A by means of the links H. A pro-
jection a¹ is also provided on slide A for receiving a spring and locking or retaining
pin a one end a³ of this locking pin a' is made to pass into notches b' formed in
the slide B whilst the other end a' engages with a forked tappet lever a³ which is
pivoted at its centre to the snug a. When the compound slide A and B is raised
the end as of the forked lever comes in contact with a pin d' fixed to the plate D
and thus raises the end a³ clear of the notches b¹ thereby permitting the slide to be
adjusted. For adjusting the slide B and spout E I employ a pear shaped lever or
prizing bar I attached to a crank J on the shaft K (carried in suitable bearings ke l¹
on plate D) and the end of lever I works in or against the projections b³ cast on
the side of the slide B, and also against a projection L cast on slide A.
The mode of action is as follows:
When the material in the cage is sufficiently operated upon the spout E is guided
by means of the slide B, and is worked up and down against the material sticking
on the side of the cage F by means of the lever G. The immense speed at which
the cage is rotating forces the material to fly up the spout E into any receptacle
outside the machine into which the stream of material may be directed and in this
way a receptacle can be filled. When it is required to momentarily withdraw the
edge of the spout from the material for an empty receptacle to be substituted for a
full one or to take a deeper cut off the material the compound slide A and B is
raised by weighted lever G until the end a of the forked lever a comes in contact
with the fixed pin d', and by the continued upward movement of the compound
slide raises the end a³ of the locking pin a²clear of the notches b¹ in slide B. When
the end of the forked lever as has passed the fixed pin d' the projection L or slide A
comes in contact with the pear shaped lever on prizing bar I (which has previously
been raised by means of handle k shaft K and crank J) and by rotating the shaft K
and crank J in the direction of arrow the slide of the lever I is forced against the

page_text: projection L and into the notches 62 and thereby the slide B is moved forward the
distance of one notch or hole 6' when the slide A is lowered into the cage of the
centrifugal the forked lever as being jointed at a to allow it to pass the fixed
pin d' and the slide B and spout E is retained in position by means of the end a³
of spring locking bar passing into the notch b'.
Canisters with spouts attached can if desired be used, the spout being guided
into place in the machine by stationary guides. The spouts if they be not required
to guide the material into any special article, but merely on to the floor, can be flat
like ordinary boards sharpened at the end.
In case it is wanted to separate sand from clay and pebbles, the clay is washed
out in the centrifugal with water, and a fork or skeleton scoop inserted, and the
pebble forked out on the above plan. An ordinary scoop can now be put in and
the sand extracted as above described. In this way lumps can be graded by using
different meshed forks, and can be separated from coarse grains or powder, and
coarse grains can be separated from impalpable powder.
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:
1st. The process of emptying centrifugal machines herein described, which
consists in inserting a spout or its equivalent pointing in the direction against
which the centrifugal is running, in such manner that the material shall fly up the
spout or its equivalent into a receptacle, or on to the outside flooring, or other
support.
2nd. The process of separating lumps from finer matter in a centrifugal, which
consists in inserting into the centrifugal a fork or skeleton spout formed of bars
with open spaces between, which fork or spout is inserted in so as to meet the
material in the centrifugal and cause the lumps to run up it while the finer matter
passes through the open spaces, substantially as described.
3rd. An apparatus for carrying a spout for use in the discharging of centrifugal
machines whilst in motion, consisting of a double or compound slide supported on
a fixed base, and moved horizontally or vertically by a crank and lever, sub-
stantially as described and shewn.
4th. The apparatus for emptying centrifugals, and also that for separating or
grading the materials of different size in the centrifugal, substantially as and for
the purposes herein described.
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