An Improvement in and relating to False Bottom Plates for Grinding and Mixing Mills, such as Mortar Mills and the like.
Year: 1898

page_text: Date of Application, 20th Jan., 1898
Complete Specification Left, 5th Oct., 1898-Accepted, 5th Nov., 1898
PROVISIONAL SPECIFICATION.
An Improvement in and relating to False Bottom Plates for Grinding
and Mixing Mills, such as Mortar Mills and the like.
I, SIDNEY STEPHEN ROGERS, of 145, Queens Road, Dalston, in the County of
London, Commercial Traveller, do hereby declare the nature of this invention to
be as follows:-
The object of this invention is to make the false bottom in a mill pan rigid and
at the same time to reduce the weight of same and these results are secured as
follows:-
-
The diagram marked Fig. 1 on the drawing herewith shews a set of ordinary
false bottom plates.
The diagram marked Fig. 2 shews a set of false bottom plates of the same size
wherein certain portions not coming into contact with the mill rollers are dispenced
with but with the exception of the lugs (one of which is marked A) which are
retained each of which have a hole through by means of which the plates are
bolted firmly together as shewn. These false bottoms are made of cast iron and
can be made any size and thickness and in any number of segments.
Dated this 20th day of January 1898.
SIDNEY S. ROGERS.
An Improvement in and relating to False Bottom Plates for Grinding
and Mixing Mills, such as Mortar Mills and the like.
I, SIDNEY STEPHEN ROGERS, of 145, Queens Road, Dalston, in the County of
London, Commercial Traveller, do hereby declare the nature of this invention
and in what manner the same to be performed, to be particularly described and
ascertained in and by the following statement:-
-
The object of this invention is to make the false bottom in a mill pan rigid
and at the same time to reduce the weight of same.
To better describe my invention I appended drawings to my Provisional Specifi-
cation in which the diagram marked Fig. 1 is a plan of an ordinary false bottom
made in four segments or plates and made to cover the entire surface of the bottom
of the mill pan these plates being placed in loose and independent of each other
shift up and down as the rollers pass over them.
To remedy this I make (as shewn on diagram marked Fig. 2 which is also a
plan of a false bottom shewing my improvements) the plates as wide or a little
wider than the faces of the rollers (this being always less than the width of the

page_text: bottom of the pan) thus making a track for the rollers to roll over these plates
I make with lugs reaching to the sides of the pan (one of which lugs is marked A
an the before mentioned drawings) holes being cored through each of these lugs
the plates can be bolted together as shown thus making the false bottom perfectly
rigid.
It will be seen on comparing the plans marked Fig. 1 and Fig. 2 which are both
for the same size of pan that my plates as shown on Fig. 2 will be much lighter
than the ordinary plates shown on Fig. 1 as all unnecessary parts are omitted.
These plates can be made any required thickness and any number of segments
may be used to make up the false bottom.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is;
False bottom plates for grinding and mixing mills the plates being manufac-
tured with lugs with cored hole through each lug for the purpose of bolting the
plates together substantially as herein described and as shown on the drawings
herein mentioned.