IMPROVEMENTS IN MACHINERY FOR GRINDING, SMOOTHING, AND POLISHING PLATE GLASS
Year: 1864

page_text: LETTERS PATENT to Nicholas Wood, of Hetton Hall, in the County of
Durham, Coal Owner, and Joseph Stockley, of the Town and County
of Newcastle-upon-Tyne, Engineer, for the Invention of "IMPROVEMENTS
PROVISIONAL SPECIFICATION left by the said Nicholas Wood and
Joseph. Stockley at the Office of the Commissioners of Patents, with
their Petition, on the 8th April 1864.
We, NICHOLAS WOOD, of Hetton Hall, in the County of Durham, Coal
Owner, and JOSEPH STOCKLEY, of the Town and County of Newcastle-upon-
Tyne, Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINERY FOR GRINDING, SMOOTHING, AND POLISHING PLATE
GLASS," to bo as follows:-
Our Invention consists, in the first place, in the adaptation and application
to machinery for grinding, smoothing, and polishing plate glass of rolls or
cylinders composed of several separate discs or circular plates of glass or
metal fixed obliquely on a central axis or shaft, with spaces between them.
The discs being arranged in this manner the revolution of their axis or shaft
will impart a kind of travelling motion to their peripheries while operating on
the surface of the glass, by causing a change of position of the parts of such
peripheries. in contact with the glass. The diameter of the discs, and the
dimensions of the spaces between them, may be varied, and these spaces may
be formed either by means of a central boss on each disc, or by the insertion
of separate washers between the faces of the discs.

page_text: And our Invention consists, secondly, in adapting and applying to machinery
for grinding, smoothing, and polishing plate glass rolls or cylinders composed
of several separate rolls or cylinders of about from one to two feet in length
fixed on a central axis or shaft, instead of rolls or cylinders of the ordinary
length. These separate rolls or cylinders may be either fixed on the central
axis or shaft, so as to be close together end to end, or they may be fixed
thereon with spaces between their ends.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Nicholas Wood and Joseph Stockley in the Great Seal
Patent Office on the 7th October 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, NICHOLAS
WOOD, of Hetton Hall, in the County of Durham, Coal Owner, and JOSEPH
STOCKLEY, of the Town and County of Newcastle-upon-Tyne, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of April, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said Nicholas Wood and Joseph Stockley, Her special license
that we, the said Nicholas Wood and Joseph Stockley, our executors,
administrators, and assigns, or such others as we, the said Nicholas Wood
and Joseph Stockley, our executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention.
for "IMPROVEMENTS IN MACHINERY FOR GRINDING, SMOOTHING, AND POLISHING
PLATE GLASS," upon the condition (amongst others) that we, the said Nicholas
Wood and Joseph Stockley, by an instrument in writing under our hands and
seals, or under the hand and seal of one of us, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that we, the Nicholas Wood and Joseph Stockley, do
hereby declare the nature of our said Invention, and in what manner the

page_text: same is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the Drawing hereunto
annexed, and to the letters and figures marked thereon (that is to say) :-
Our Invention of "Improvements in Machinery for Grinding, Smoothing,
and Polishing Plate Glass" consists, in the first place, in the adaptation and .
application to machinery for grinding, smoothing, and polishing plate glass, of
rolls or cylinders composed of several separate discs or circular plates of glass
or metal fixed obliquely on a central axis or shaft with spaces between them.:
The discs being arranged in this manner the revolution of their axis or shaft
will impart a kind of travelling motion to their peripheries while operating on
the surface of the glass, by causing a change of position of the parts of such
peripheries in contact with the glass. The diameter of the discs and the
dimensions of the spaces between them may be varied, and these spaces may
be formed either by means of a central boss on each disc, or by the insertion
of separate washers between the faces of the discs.
And our Invention consists, secondly, in adapting and applying to machinery
for grinding, smoothing, and polishing plate glass, rolls or cylinders composed
of several separate rolls or cylinders of about from one to two feet in length
fixed on a central axis or shaft, instead of rolls or cylinders of the ordinary
length. These separate rolls or cylinders (either with plain or grooved
surfaces) may be either fixed on the central axis or shaft, so as to lie close
together end to end, or they may be fixed thereon with spaces between
their ends.
Having thus stated the nature of the said Invention, we will proceed to
describe more particularly in what manner the same is to be performed by
reference to the accompanying Drawings, in which are represented the rolls or
cylinders above referred to.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 represents a roll or cylinder of the kind herein-before referred to
under the first head; Fig. 2 is a vertical section; and Fig. 3 an end view of
one of the discs of which the roll is composed; and Fig. 4 represents a roll or
cylinder referred to under the second head. In these several Figures the
same letters of reference indicate corresponding parts.
A is the central axis or shaft; B, B, are the discs of glass or metal fixed
obliquely on the axis; C, C, are the spaces between the discs, which, as will
be seen on reference to Figures 2 and 3, are shewn with a central boss D on
each of them, but they may be otherwise constructed; E. Fig. 4. represents a

page_text: with a grooved surface, the projecting parts of which are formed, in lines at
right angles to the axis;. G, shews the same with a grooved surface, the
projecting parts of which are in oblique lines. These lengths or portions of
the roll or cylinder may be fixed on the central axis or shaft either with their
ends, close together or with spaces between them, as shewn at H, H.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, we hereby declare that what we claim
as of our Invention is,
First, the adaptation and, application to machinery for grinding, smoothing,
and polishing plate glass of rolls or cylinders composed of separate discs fixed
obliquely on a central axis or shaft, as herein-before described.
And, secondly, the adaptation and application to machinery for the same
purpose, of rolls or cylinders composed of lengths or portions fixed on a
central axis or shaft, either with their ends close together or with spaces
between them, as herein-before described.
In witness whereof, we, the said Nicholas Wood and Joseph Stockley,
have hereunto set our hands and seals, the Fourth day of October, in
the year of our Lord One thousand eight hundred and sixty-four.
NICHS WOOD
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