Improved Means for Separating Lime Stone from Clay.
Year: 1896

page_text: Date of Application, 17th Jan., 1896
Complete Specification Left, 19th May, 1896-Accepted, 8th Aug., 1896
PROVISIONAL SPECIFICATION.
Improved Means for Separating Lime Stone from Clay.
JOHN CAMMISS Engineman 11 Christopher Street West Hartlepool THOMAS
SHEPPARDSON Engineer 30 Bengal Street West Hartlepool. We do hereby declare
the nature of this invention to be as follows:-
Improved means for separating lime stone and other injurious substances from
clay.
For the manufacture of bricks flower pots, tiles chimney pots, drain pipes, drain
tiles, vase, and all sorts of earthenware. The clay is taken from the field and dryed,
which will then fall to peaces. The large stones can be pickel out. The clay is
then put into a hopper with revolving machinery, which breaks the clay into
powder. The small stones falls into the screens or riddles of which there are two
or more. The first riddle is a coarse one, the others reduced to very fine, this fine
powdered clay is made humid when entering the brick or other machines.
February 19th 1896.
JOHN CAMMISS.
THOMAS SHEPPARDSON.
improve
Means for separating
JOHN CAMMISS Engineman 11 Christopher Street West Hartlepool THOMAS
SHEPPARDSON Engineer 8 Tankerville Street West Hartlepool. We 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 :-
Improved means for separating lime stone and other injurious substances from
clay. For the manufacture of bricks, flower pots, tiles chimney pots, drain pipes,
drain tiles vase, and all sorts of earthenware. We take the clay from the field into
a drying chamber first. A great advantage over the present method of first
washing the clay then grinding the remaining clay and stones together, then
pumping it up into an elevated position, from there into sieves, then to dry until
stiff enough to use. (When ours is dry it is then ready to put into the pulverizer,
from there it falls into the screens, and from there into the machine to make the
articles required.) We can do it with fifty per cent. less horse power with greater
economy and utility.
1. There is the hopper which is made of cast iron or steel.
2. There is,the pulverizer which is made of steel or iron, which revolve in centre
of hopper and reduce the dry clay to powder, but not the stones, the pulverizer is
made to lift a little on a sliding key, and lets the small stones through without
breaking them into the screens.
3. There are the screens there are two or more, the first screen is a coarse one,
the others reduced to very fine, the screens are made to move backward and
forward quickly by means of a connecting rod attached to the end of screen box,
driven by machinery

page_text: 4. We claim size according to the quanity of clay that manufactures require
to make from 10,000 to 50,000 bricks or other articles per day.
An
FIG. 1.
A Shaft for revolving pulverizer.
B & C Bracket to steady shafting.
DD Stopper to keep the clay from riding round in pulverizer.
EE The hopper.
FF Brackets to carry hopper.
G The pulverizer.
H Slot holes in pulverizer for clay and small stones to go through.
II Space between hopper and pulverizer.
J Block inside of pulverizer for keyway.
K Keyway in block of pulverizer.
L Carrying bracket and support for bottom of pulverizer.
M Exit for powdered clay and small stones which falls into screens below.
A & B Screen box.
FIG. 2.
CC Doors at which to take out stones and to slide screens in and out when
required.
DD The screens.
EE Hangers to carry the screens and to let them move backward and forward
easily.
F Bracket for connecting rod attachment.
G Slide for screens to move backward and forward in.
Having now particularly described and ascertained the nature of our said inven-
tion, & in what manner the same is to be performed, we declare that what we
claim is :-
(1) The drying of the clay that is the first process which is opposite to the
method at present used.
(2) The hopper and pulverizer to reduce the dry clay to powder and the screens
that separate the stones from the clay.
Dated this 18th day of May 1896.
THOMAS SHEPPARDSON.