Improvements connected with Grinding Pans for Grinding and Crushing Moist or Dry Clay, Chalk, and other Substances.
Year: 1896

page_text: Date of Application, 14th My, 1896
Complete Specification Left, 2nd Feb., 1897-Accepted, 20th Mar., 1897
Improvements connected with Grinding Pans for Grinding and
Crushing Moist or Dry Clay, Chalk, and other Substances.
We, T. C. FAWCETT LIMITED, THOMAS CONSTANTINE FAWCETT and JAMES DAWSON
FAWCETT of the Whitehouse Engineering Works, Leeds, in the County of York,
Machine Makers do hereby declare the nature of this invention to be as follows:-
This invention relates to pans employed for grinding and crushing clay, chalk or
other substances, and the invention relates to that description of grinding pan where
the substances are rolled and ground and forced through a perforated plate on to a
revolving disc. Hitherto this disc has been formed on a horizontal plane, but although
scrapers have been employed to force the clay off the revolving disc there has always
been a large accumulation of ground clay on the said plate which was undesirable,
whilst steam power was unnecessarily spent in carrying the accumulated clay
around.
According to our invention we propose to make the revolving disc, which receives
the clay, taper, or inclined from the axle so that the clay more readily leaves the disc
consequently the power required to drive the disc is considerably lessened.
TASKER & CROSSLEY,
Patent Agents,
Halifax, Agents for Applicants.
Improvements connected with Grinding Pans for Grinding and
Crushing Moist or Dry Clay, Chalk, and other Substances.
We, T. C. FAWCETT, LIMITED, THOMAS CONSTANTINE FAWCETT, and JAMES DAWSON
FAWCETT, of the Whitehouse Engineering Works Leeds, in the County of York,
Machine Makers, do hereby declare the nature of this invention and in what manner
the same is to be performed, to he particularly described and ascertained in and
by the following statement :-
This invention relates to pans employed for grinding and crushing, clay, chalk or
other substances and the invention relates to that description of grinding pan where
the substances are rolled and ground and forced through a perforated plate on to a
revolving disc. Hitherto this disc has been formed on a horizontal plane, but although
scrapers have been employed to force the clay off the revoiving disc there has always
been a large accumulation of ground clay on the said plate, which was undesirable
whilst steam power was unnecessarily spent in carrying the accumulated clay
around.
According to our invention we propose to make the revolving disc, which receives
the clay, taper or inclined from the axle, so that the clay more readily leaves the disc
consequently the power required to drive the disc is considerably lessened.

page_text: In order that the improvements may be clearly understood, we make reference to
the accompanying sheet of drawings illustrative thereof, where A represents a grinding
pan, caused to revolve on vertical axis B. The grinding or crushing rollers are shewn
at C, and they revolve over grates D for grinding, crushing and pulverizing materials
lying thereon, and afterwards forcing the said ground materials through the
perforations in the grate such materials dropping upon the inclined circular plate E,
which is connected to the pan by bolts F. It is evident that on the material dropping
upon the inclined plate E, it will slide off on to the ground or into a receptacle placed
to receive it.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In grinding pans provided with grates such as C, the combination therewith of an
inclined plate E, employed in manner described and for purposes set forth.
ated this ist day or February 1831.
TASKER & CROSSLEY,
Halifax, Agents for Applicants.
TASKER & CROSSLEY,
Halifax, Agents for Applicants.