Improvements in Roller Grinding Mills.
Year: 1891

page_text: Date of Application, 4th May, 1891
Complete Specification Left, 4th Feb., 1892-Accepted, 4th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Roller Grinding Mills.
I JAMES JONES, Miller, of the Town of Thorold, in the County of Welland, in
the Province of Ontario, Canada (at present residing at Little Dawley in the
County of Shropshire England) do hereby declare the nature of this invention to be
as follows:-
This invention relates to roller grinding mills of that character which I jointly
with Aldred James Jones communicated to Henry Birkbeck and for which Letters
Patent were granted No. 18816 of 1889 and my present improvements are as
follows:-
In place of making the stationary roll perfectly cylindrical on its periphery as
described in the said Patent this stationary roller is made other than the arc of a
circle-that is it is made many sided on its peripheral surface.
These sides are each formed concave and the face of such concavities are either
smooth or corrugated or fluted or furrowed as desired.
These series of concave shaped grinding surfaces on this stationary roller may be
successively moved round and brought opposite the revolving roll or rolls so as to
act in conjunction therewith to grind to any required degree of fineness.
This stationary roller may be adjusted towards or away from the revolving roller
or rollers and by partly revolving the former a fresh grinding surface of concave
form can be produced when required until all the series of cavities have been
employed.
I do not limit myself to forming all the sides concave.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Patentee.
COMPLETE SPECIFICATION.
Improvements in Roller Grinding Mills.
I JAMES JONES, Miller, of the Town of Thorold in the County of Welland, in
the Province of Ontario, Canada, (at present residing at Little Dawley in the
County of Shropshire, England) 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 :-
This invention relates to roller grinding mills of that character which I jointly
with Aldred James Jones communicated to Henry Birkbeck and for which Letters
Patent were granted No. 18816 of 1889 and also for which I jointly with the said
Aldred James Jones received the grant of Letters Patent dated 7th January 1891
No. 310 and my present improvements are as follows:-
In place of making the stationary roll perfectly cylindrical on its periphery as
described in the first said Patent this stationary roller is made other than the are of
a circle that is it is made many sided on its peripheral surface.
In place of making these sides flat as in the second named Patent No. 310 of
1891 according to my present invention I now make these sides each formed concave
and the face of such concavities are either smooth or corrugated fluted furrowed or
otherwise roughened as desired.
These series of concave shaped grinding surfaces on this stationary roller may be
successively moved round and brought opposite the revolving roll or rolls and

page_text: TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.