IMPROVEMENTS IN MOULDS
Year: 1880

page_text: .
LETTERS PATENT to Samuel Neville, of Tynemouth, in the County of
Northumberland, Gentleman, for an Invention of "IMPROVEMENTS IN MOULDS
LETTERS PATENT to Samuel Neville, of Tynemouth, in the County of
Northumberland, Gentleman, for an Invention of "IMPROVEMENTS IN MOULDS
FOR THE MANUFACTURE OF PRESSED GLASS."
PROVISIONAL SPECIFICATION left by the said Samuel Neville at the Office
of the Commissioners of Patents on the 1st September 1880.
SAMUEL NEVILLE, of Tynemouth, in the County of Northumberland, Gentleman.
"IMPROVEMENTS IN MOULDS FOR THE MANUFACTURE OF PRESSED GLASS."
My Invention relates to the construction of moulds for making articles of pressed
glass, whereby a number of articles can be produced by one operation of the
machine, the said construction of moulds being applicable also to the production of
articles in other substances capable of being pressed.
To effect this object I use a cistern to contain the molten glass, the bottom
surface of which may form the lower portions of the moulds when required. Into
this cistern, containing the proper quantity of molten glass, a frame consisting of
the requisite number of moulds of the external form of the articles to be made is
caused to descend and cut out in divisions the quantity of glass required for each
article.
Following this operation, or it may be simultaneously with it, a corresponding
number of plugs, of the shape of the interior of the article, descend and form the
interior cavities, or the plugs may in certain cases be arranged upon the bottom of
the cistern and the frame of moulds made to descend over them.
The frame of moulds being now raised the moulded articles are left perfectly
formed, either in the cistern or in the frame itself, according to the shape of the
articles.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samuel Neville in the Great Seal Patent Office on the 1st March
1881.
SAMUEL NEVILLE, of Tynemouth, in the County of Northumberland, Gentleman.
"IMPROVEMENTS IN MOULDS FOR THE MANUFACTURE OF PRESSED GLASS."
My Invention relates to the construction of moulds for making articles of pressed
glass, whereby a number of articles can be produced by one operation of the
machine, the said construction of moulds being applicable also to the production of
articles in other substances capable of being pressed.
To effect this object I use a cistern to contain the molten glass, the bottom
surface of which may form the lower portions of the moulds when required. Into
this cistern, containing the proper quantity of molten glass, a frame consisting of
the requisite number of moulds, of the external form of the articles to be made, is
caused to descend and cut out in divisions the quantity of glass required for each
article.
Following this operation, or it may be simultaneously with it, a corresponding
number of plugs of the shape of the interior of the article, descend and form the
interior cavities, or the plugs may, in certain cases, be arranged upon the bottom of
the cistern and the frame of moulds made to descend over them.
The frame of moulds being now raised, the moulded articles are left perfectly
formed, either in the cistern or in the frame itself, according to the shape of the
articles.
I now proceed to illustrate, by the accompanying Drawings and description of
the same, one way in which my Invention may be brought into practical use, but
I do not bind myself to the particular mode of operating the cistern, cutters, and
plugs, which form the essential parts of my Invention.
DESCRIPTION OF DRAWINGS.
Figures 1 and shew respectively a front view partly in section, and a side
elevation of a press having my Invention fitted to it; Figure 3 is an enlarged
section of the cistern to contain the molten glass; Figure 3* is a plan of the same;
Figure 4 is a section of the mould frame; Figure 4° is a plan of the same inverted;
Figure 5 is a section of the plate carrying the plugs, and Figure 5ª is a plan of the
samo inverted,
The mould frame and plugs shown are intended to cut out sixteen articles,
known in the trade as "salts," at one operation, the moulds cutting out the
external form of the articles, and the plugs pressing out and forming the inside
cavities.
In Figures 1 and 2, A is the cistern; B, the mould frame, and C the plug plate.
The molten glass is poured from a ladle into the cistern A, which is then pushed
along the guide rails under the mould frame B, which descends into it (by the
action of a screw and hand wheel) and cuts out the external shape of the salts."
Immediately following the descent of the mould frame, the plate C carrying the
plugs descends (by the action of a lever) and presses the glass into the moulds, at
the same time forming the inside cavities of the "salts."
The mould frame B and plugs C are now raised, leaving the pressed "salts" in
the cistern A, which is drawn out on the guide rails, the articles removed (by
opening one end), the "cullett" swept out, and the cistern is ready for another
charge from the ladle.
Figures 3, 3, Figures, 4, 4º, and Figures 5, 5º, shew, as above mentioned,

page_text: enlarged views of the cistern, mould frame, and plug plate, and require no
explanation.
To press many shapes of articles, the plugs forming the cavities may require to
be raised upon the bottom of the cistern, the mould frame descending over them;
for other articles " open and shut" moulds may require to be used, but the mode
of operation is the same, no matter what the shape of the articles to be pressed
may be.
Having now described the nature of my Invention, and the means by which it
may be carried into practical effect, I claim as novel and secured to me by Letters
Patent,―
Cutting out and pressing by means of moulds and plugs a number of articles at
one time from the required quantity of molten glass, substantially as shewn and
described.
In witness whereof, I, the said Samuel Neville, have hereunto set my hand
and seal, this Twenty eighth day of February, in the year of our Lord
One thousand eight hundred and eighty one.
SAMUEL NEVILLE.
(L.S.)