Improvements in or relating to Mills for Grinding Grain or similar Materials.
Year: 1898

page_text: Date of Application, 29th Oct., 1898
Complete Specification Left, 29th Aug., 1899-Accepted, 30th Sept., 1899
PROVISIONAL SPECIFICATION.
Improvements in or relating to Mills for Grinding Grain or
similar Materials.
I, JAMES SLEEMAN, of Carlton House, Portishead, Somerset, Maltster, do
hereby declare the nature of my said invention to be as follows:-
The object of my invention is to effect improvements in the arrangement of
the millstones, whereby the grinding effect is improved.
According to my invention, I revolve both stones, preferably at different
speeds and in opposite directions; one is fixed rigidly to its driving spindle or
shaft and the other is balanced upon its shaft. Or, where three stones are
used, the middle stone is fixed rigidly, and the outer stones are balanced on
their driving spindles; the stones may be run horizontally or vertically as
desired.
The stones are preferably cased in metal in which they are adjustable in
order to guard against accidents from the breaking or flying of the stones.
In some cases I balance and revolve both the stones.
Preferably the shafts are run one within the other, the outer tubular shaft
carrying one stone and the inner shaft carrying the other stone.
Dated 20th Octoba 1808
GEORGE DOWNING & SONS,
8, Quality Court, London, W.C., Agents.
Improvements in or relating to Mills for Grinding Grain or
similar Materials.
I, JAMES SLEEMAN, of Carlton House, Portishead, Somerset, Maltster, do
hereby declare the nature of my said invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:-
The object of my invention is to effect improvements in the arrangement
of the stones of grinding and analogous mills, whereby the grinding effect is
improved and the stones rendered more accessible for dressing &c.
According to my invention I fix one stone rigidly on its axle and balance
the other stone or stones, all of the stones being driven. In the case of two
stones, one (preferably the lower) is mounted rigidly upon a shaft and the other
stone is balanced or connected to its shaft so as to be capable of yielding; both
stones are driven and at different speeds in opposite directions.

page_text: Where three stones are used, the middle one is mounted rigidly on its
shaft and the others are balanced on their shafts, all being rotated.
The stones are preferably cased in metal, in which casing they are adjust-
able, in order to guard against accidents arising from the breaking or flying of
the stones; they may be run horizontally or vertically as desired.
Preferably the shafts are tubular and arranged to run one within another.
It will thus be seen that my invention consists essentially in revolving both
or all the stones instead of using a stationary stone to each set, whereby the
efficiency of the mills is greatly improved.
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:-
In mills for grinding grain or similar materials, mounting the stones so that
both or all of them may be revolved at different speeds and in opposite directions
and so that one or more stone or stones is or are balanced and the other
mounted rigidly on its shaft, constructed with or without metal casings,
arranged and operating substantially as herein before set forth.
Dated 29th August 1800
Dated 29th August 1800
JAMES SLEEMAN.
By George Downing & Sons,
8, Quality Court, London, W.C.,
Chartered Patent Agents,