IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF ARTICLES OF PRESSED GLASS
Year: 1870

page_text: LETTERS PATENT to Thomas George Webb, of Manchester, in the
County of Lancaster, Glass Manufacturer, for the Invention of
"IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF ARTICLES OF
PRESSED GLASS."
Scaled the 5th May 1871, and dated the 10th November 1870.
PROVISIONAL SPECIFICATION left by the said Thomas George Webb
at the Office of the Commissioners of Patents, with his Petition,
on the 10th November 1870.
I, THOMAS GEORGE WEBB, of Manchester, in the County of Lan-
caster, Glass Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF
ARTICLES OF PRESSED GLASS," to be as follows:-
My Invention relates to the manufacture of those articles of pressed
glass, in which a plug or die is used, the main feature thereof being
that I employ one screw rack or equivalent apparatus for adjusting

page_text: the "scollop" to the mould, and another for forcing the die into or
upon the metal.
In the arrangement I at present propose the "scollop" is connected
to a screw working in a nut carried by the frame, and through this
there passes another screw to which the plug or die is connected. I
propose to employ a carriage, upon which the mould may be slidden
forward, and the "scollop" is then adjusted by its screw, after which
the plug or die is forced into or upon the mould by the other screw.
The supports for the "scollop" are carried by a cross plate having a
series of holes, by which the said supports may be attached nearer or
wider apart.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas George Webb in the Great Seal Patent
Office on the 10th May 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
GEORGE WEBB, of Manchester, in the County of Lancaster, Glass
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent, bearing date the Tenth day of November, One thou-
sand eight hundred and seventy, in the thirty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Thomas George Webb, Her special licence that I, the
said Thomas George Webb, my executors, administrators, and assigns,
or such others as I, the said Thomas George Webb, my 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, exer-
cise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF ARTICLES OF PRESSED
GLASS," upon the condition (amongst others) that I, the said Thomas
George Webb, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause
'

page_text: 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 I, the said Thomas George Webb, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement and accompanying Drawings (that is
to say) :-
:-
My Invention relates to the manufacture of those articles of pressed
glass in which a plug or die is used.
my
"
In the accompanying Drawing Figs. 1 and 2 represent one method by
which Invention may
be carried into effect. At a is the ordinary
frame of a press provided with wheels as usual, by which means it
may be moved to any required situation. Upon this frame are formed
V guides 6, upon which is placed a platform c which carries the mould e,
and these may be slidden to and fro together, and the position registered
by any suitable stop, so as to secure the mould being central with the
plug. At f is the " scollop secured to a plate 9 by means of bolts h,
there being intervening thimbles i for keeping the two apart. The
plate is shewn detached at Fig. 2 provided with holes j, through
which the ordinary standards of the press pass, and the said plate is
therefore capable of sliding thercon. This plate j is also provided with
a central hole k, through which the plug passes, and with slots 1,
through which the bolts / pass, and by means of which the said bolts
may be moved further from or nearer to the centre to accommodate
them to different sizes of "scollops." At m is the plug attached to the
ordinary rod n which is fixed to the usual cross head o capable of sliding
on the standards, and to this cross head are connected the rods p which
are attached at their other ends to levers q mounted on the shaft r, and
ats is the lever handle by which the said shaft r may be turned; this
arrangement being that of the press ordinarily used in the manufacture
of pressed glass. Upon the standards is mounted a cross bar t having
a nut formed in its central part, within which there is a screw u capable
of being turned upward or downward by a pulley handle
and through
this screw the aforesaid rod n passes freely, and to the bottom of the
said screw the plate g is attached.
On commencing operations with this machine (the metal being placed
11

page_text: screw u downward, and by this means the scollop fis brought on to the
top of the mould, as seen in the Drawing. When this has been accom-
plished the lever handle s is turned, and the plug m is forced into the
mould in the usual manner, it being subsequently withdrawn by the
same means, after which the pulley handle is turned back and the
scollop raised as is required in ordinary pressing. The platform c may
then be slidden backward preparatory for another operation.
In Fig. 3 a modification of my Invention is shewn. The cross head o
which carries the plunger m, the rods p, and lever handles are again
of the ordinary construction, but in this instance the rod n does not
pass through a screw u, as at Fig. 1. The "scollop "fis carried by a
plate g, as before, which is carried by rods w, which are attached to a
cross head x, which is capable of sliding upon the standards. This
cross head is provided at its central part with a boss y which passes
through the stationary bar z which connects the standards together,
as seen in the detached view Fig. 4, and this boss has a wedge-shaped
feather 2¹ formed thereon. Through the bar z there extends a screw y¹
provided with a handle x¹, by means of which the screw y¹ may be
tightened upon the feather z¹, so as to retain it in any required situation.
According to the positions shewn the scollop is on the mould, and it is
held firmly there by the screw y', having been tightened upon the said
feather, and the plug m is now brought into the mould by turning the
handles as usual. When this has been done (the boss y being still
firmly held), the said plug is raised until it is free of the "scollop," by
which time the cross head o or nut thereon arrives against the cross
head x.
The screw y¹ is then loosened from the boss y and a further
motion of the lever 8 will cause the cross head x, and consequently
scollop, to be lifted upward, so as to free the latter from the mould.
On again commencing operations the lever handles being turned will
cause the cross head o to be depressed, and the scollop cross head x
will follow it by its own weight, and when the said scollop is adjusted
to the mould the screw y¹ is tightened, and the operation goes on as
above described. It will be seen that in this instance, as in the former,
the scollop is held by apparatus distinct from that which works the
plug, the boss y and parts connected therewith taking the place of the
screw u in Fig. 1.

page_text: it to be understood that, for the purpose above set forth, I claim as
secured to me under the above in part recited Letters Patent, the com-
bination in a press of separate motions for adjusting and holding the
"scollop" and for working the plug.
In witness whereof, I, the said Thomas George Webb, have here-
unto set my hand and seal, this Ninth day of May, in the
year of our Lord One thousand eight hundred and seventy-one.
THOMAS GEORGE WEBB. (L.S.)