IMPROVEMENTS IN PRESSES MORE ESPECIALLY ADAPTED TO THOSE USED IN MOULDING GLASS
Year: 1874

page_text: LETTERS PATENT to Jolin Sowerby, of Gateshead-on-Tyne, in the
County of Durham, Flint Glass Manufacturer, for the Invention of
"IMPROVEMENTS IN PRESSES MORE ESPECIALLY ADAPTED TO THOSE USED IN
MOULDING GLASS."
Scaled the 25th June 1875, in pursuance of an Order of the Lord
Chancellor, and dated the 27th November 1874.
PROVISIONAL SPECIFICATION left by the said John Sowerby at the
Office of the Commissioners of Patents, with his Petition, on the
27th November 1874.
I, JOHN SOWERBY, of Gateshead-on-Tyne, in the County of Durham,
Flint Glass Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN PRESSES MORE ESPECIALLY ADAPTED TO THOSE
USED IN MOULDING GLASS," to be as follows:-
My Invention relates to certain improvements in presses more
especially employed in the manufacture of moulded glass, being par-
ticularly applicable to "Perry's improved pross," and has for its object

page_text: .the disengagement of the moulded article from the matrice and its
reception on a traveller beneath.
In carrying out my Invention I fix on a shaft a vertically revolving
wheel, having around its periphery means by which the desired number
of moulds or matrices with moveable bottoms may be fastened thereon;
or the moulds may be formed in the rim of the wheel. The vertical
centre line of this wheel coincides with the centre line of the plunger,
and the parts are so arranged that when the wheel revolves the plunger
shall enter the mould upon its gaining the perpendicular position. The
article having been formed by the downward pressure of the plunger
and relieved therefrom, and the wheel having further performed a half
revolution, the manufactured article in the mould is brought to a
pendant position, and by means herein-after described falls from the
mould on to a traveller beneath which conveys it away to an attendant
by whom it is removed. Connected with the motion of the plunger is a
hammer-headed lever which strikes or presses the moveable bottom of
the pendent mould, thus starting the moulded article from its bed and
setting it at liberty to drop on to the traveller before mentioned.
-
Around the wheel may be fixed any number of moulds, as convenience
may dictate, but should it be desirable to use more than one plunger,
then the same number of moulds as there are plungers should severally
be placed abreast on the wheel.
The method of imparting motion to the parts above mentioned is so
well known as to require no explanation beyond this, that they each
derive their power from the press, working in unison therewith and with
each other.
SPECIFICATION filed in pursuance of the conditions of the Letters
·
Patent and of an Order of the Lord Chancellor by the said John
Sowerby in the Great Seal Patent Office on the 26th June 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN 30
SOWERBY, of Gateshead-on-Tyne, in the County of Durham, Flint Glass
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of November, in the

page_text: year of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Sowerby, Her special
licence that I, the said John Sowerby, my executors, administrators,
5 and assigns, or such others as I, the said John Sowerby, 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, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
0 Channel Islands, and Isle of Man, an Invention for -“ IMPROVEMENTS
IN PRESSES MORE ESPECIALLY ADAPTED TO THOSE USED IN MOULDING GLASS," upon
the condition (amongst others) that I, the said John Sowerby, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
5 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 seven calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Sowerby, 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 in writing, reference being had to the Drawing
hereunto annexed, and to the letters and figures marked thereon (that
is to say) :-
My Invention relates to certain improvements in presses more
especially employed in the manufacture of moulded glass, being par-
ticularly applicable to "Perry's improved press," and has for its object
the disengagement of the moulded article from the matrice, and its
reception on the traveller beneath.
In carrying out the first part of my Invention, namely, the disengage-
ment of the moulded article from the matrice or mould, I place on a
shaft a vertically revolving wheel or drum, having around its periphery
means by which the desired number of moulds may be fastened thereon,
or the moulds may be formed in the rim of the drum. The vertical
centre line of this drum coincides with the centre line of the plunger
above which is connected by the ordinary means of a cross head con-
necting rods and cranks to the before mentioned shaft, so that they

page_text: both work in unison. The metal in the top mould having been formed
by the downward motion of the plunger and relieved therefrom, the
drum takes part of a revolution, bringing to a pendent position a mould
previously filled and stamped, the weight of the article therein, assisted by
taps from a hammer-headed lever, disengages the article from the mould.
This will be the better understood by referring to the accompanying
Drawing, where Figure 1 is a side elevation showing the drum surrounded
with moulds; Figure 2 is a transverse view, partly in section, to show
the working of the hammer-headed lever by the tappet; Figure 3 is a
sectional elevation to shew the means of producing the intermittent
motion of the drum. In all these Figures A is the vertical wheel or
drum, which in this instance is made to receive 6 moulds B' to B"; this
drum is placed on the axle C and revolves independently thereof; on
this axle (which derives its motion from the prime mover, steam or
otherwise, and imparts motion to the plunger, as aforesaid, by means of
cranks and connecting rods) is keyed a wheel & having but one tooth
which works a 6-toothed wheel e keyed on a shaft f below; on this
shaft is also keyed a cog wheel g gearing into a wheel 'a' attached to or
forming part of the drum A, to which it gives motion during the time
the single tooth of the wheel d acts upon the wheel e.
1
To ensure steadiness of action and to prevent the following mould
travelling beyond the point where its centre line and that of the plunger
coincide I form on the side of the drum a boss having 6 recesses or
notches, into the upper one of which falls the hinged bar ¹; this keeps
the mould in position to receive the pressure of the plunger until a
stub t, Figure 4, fixed on the shaft C, raises the bar and sets the drum at
liberty to rotate and bring forward another mould, when the bar ¹ falls
into the next recess.
From the foregoing it is apparent in what manner the vertical wheel
or drum A derivos its intermittent motion, and I will now proceed to
describe the way in which I propose to disengage the moulded article
from the mould. After the article is formed in the upper mould and
the press continuing in operation, the mould, and with it, the manu-
factured article, is brought to a pendent position, as shown at B',
Figure 2. The moveable bottom i then receives one or two taps from a
hammer-headed lever i worked by a tappet k; one end of this tappet is
acted upon by a cam 7 keyed on the shaft C, so that on the hammer-
headed lever arriving under the tappet the short arm shall be depressed,.

page_text: thus raising the hammer, which is then set free to fall smartly on the
moveable. bottom; the cam is so made as to repeat this action two or
three times. This may be better seen by the dotted lines in Figure 1.
•
The article falling from the mould is received on a traveller m; this
traveller is made to yield to the falling article by having adjustable
balance weights n, ni, screwed to the arms o, o, of the flaps or carriers m*
at a distance from the hinges p, according to the weight of. the article.
The traveller is set in motion by an eccentric s keyed on the shaft C,
and is so arranged by working a ratchet wheel that a flap shall always
be ready to receive the falling article, which is then in due course.
brought round to the attendant by whom it is removed. Figure 5 is a
general plan of a portion of this traveller drawn to a smaller scale, but
where the nature of the article requires that the flap shall fall or
descend horizontally I modify the arrangement, as shewn in Figure 6,
where m is the flap or carrier; o, a lever with an adjustable balance
weight n on the outer arm. To the under side of the carrier is a
support m¹ that rests upon the radial arm m" when the weight of the
article has brought the carrier down. To the upper part of this support
the lever o is attached by a pin o¹, while at the lower end a link o¹¹ con-
nected to the fulcrum_m" of the lever o produces a parallel motion;
thus the carrier descends horizontally. The nuts m", m', in Figures 1,
5, and 6 are for the purpose of adjusting the height of the carrier
according to the mould used.
Figure 4 and 4" are views to shew the action of the stub t in raising
the bar which allows the drum A to rotate.
Figure 7 is a plan of a portion of the drum explanatory of the means
I employ to fasten the desired mould thercon. ", u, are spaces for the
insertion of like projection ³, u, on the bottom of the mould (see
Figure 2), when by giving the mould a quarter turn the projections
enter a channel "" cut for them, see Figures 2 and 7.
Having now described my Invention for " Improvements in Presses
more especially Adapted to those Used in Moulding Glass," together
with the manner of carrying the same into effect, I claim as my
Invention,―
First. The vertically revolving wheel or drum A, or any mere modi-
fication thereof, for the purposes herein-before set forth.

page_text: Secondly. The means herein described and illustrated on the accom-
panying Drawing of disengaging the moulded article from the mould.
Thirdly. The mode herein set forth of receiving the article and
carrying it to the attendant.
In witness whereof, I, the said John Sowerby, have hereunto set i
my hand and seal, the Twenty-fifth day of June, in the year of our
Lord One thousand eight hundred and seventy-five.