Manufacture of Glassware.
Year: 1885

page_text: Manufacture of Glassware.
I JOHN GEORGE SOWERBY, of Ellison Glass Works, Gateshead on Tyne, in the
County of Durham, Glass Manufacturer, do hereby declare the nature of my
invention for IMPROVEMENTS IN THE CONSTRUCTION OF MOULDS USED IN THE
MANUFACTURE OF GLASSWARE, to be as follows:-
My invention relates to improvements in the construction of moulds for
manufacturing glassware, whereby I am enabled to press a deep cut pattern with
great facility on the under side of any flat. jointed articlo; as will be readily
understood by reference to the accompanying Sheet of drawing upon which
I show a mould embodying my improvements and such as I propose to use for
the manufacture of sugar basins.
On the drawing, A indicates section through the centre of a four part sugar
mould D a loose cast iron or steel ring cut through at each joint of the mould;
this ring D may be held steady and the remainder of the mould be allowed to
work as shown on the drawing, where the parts A B C are the moving parts, those
D E F being fixed; or I may work it up and down in the space G by any simple
mechanical arrangement.
The drawing shows the mould in position to press glass: but directly the article
is made, the springs on F force up the parts A B and C until the glass is above the
surface of D, and then the mould will open.
The part C can be held down on the part E, by means of a lever inside the
bottom E, by springs attached to the press, or by any suitable device.

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction of Moulds Used in the
Manufacture of Glassware.
I, JOHN GEORGE SOWERBY of Ellison Glass Works Gateshead on Tyne in the
County of Durham, Glass Manufacturer, 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 :-
My Invention relates to improvements in the construction of moulds for
manufacturing glassware, whereby I am enabled to press a deep cut pattern with
great facility on the underside of any flat jointed article, as will be readily
understood by reference to the accompanying sheet of drawing, upon which
Figure 1 shows a mould embodying my improvements and such as I propose to
use for the manufacture of sugar basins.
On the drawing, A indicates section through the centre of a four part sugar
mould, D a loose cast iron or steel ring cut through at each joint of the mould;
this ring D may be held steady and the remainder of the mould be allowed to
work as shewn on the drawing (where the parts A. B. C are the moving parts,
those D E F being fixed); or I may work it up and down in the space G by any
simple mechanical arrangement.
The drawing shows the mould in position to press glass; but directly the article
is made, the springs on F force up the parts A. B. and C until the glass is above
the surface of D, and then the mould will open.
The part C, together with the parts A B, can be held down on the part E, by
means of a lever H inside the bottom E, (as shewn in detail Fig. 2) by springs
attached to the press, or by any suitable device.
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
1. In moulds for the manufacture of Glassware, the use of the ring D substan-
tially as described for the purpose specified.
2. A mould for the manufacture of Glassware, constructed, combined and
arranged to operate substantially as described and illustrated on the accompanying
drawings.