Improvements in Molds for the Manufacture of Glass Ware.
Year: 1894

page_text: Date of Application, 24th Dec., 1894-Accepted, 26th Jan., 1895
COMPLETE SPECIFICATION.
Improvements in Molds for the Manufacture of Glass Ware.
1, CHARLES EDWIN BLUB, Junior, of Wheeling, in the County of Ohio, State
of West Virginia, United States of America, Manufacturer, do hereby declare the
natue 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 molds for the manufacture of
glassware; and it consists in the construction, combination and arrangement of
parts which will be fully described hereinafter, and particularly pointed out in the
claims.
Que object of my invention is to provide a mold for the manufacture of glass-
ware having primary and secondary bottoms, the two being so constructed and
arranged that when the primary bottom moves downward within the mold the
secondary bottom is simultaneously moved into place.
Another object of my invention is to so construct the mold that when the plunger
is raised either by steam or hand or other inotive power, an is automatically
admitted within the mold for expanding the glass, and at the proper time the flow
of air is automatically cut off, all of which will be more fully described hereinafter
and illustrated.
In the accompanying drawing
Figure 1 15 a sectional view of my invention showing the same complete,
showing the position of the parts such as assumed when the ordinary glass press
is down
Figure 2 is a similar view showing the positions assumed by the parts when the
glass press 18 1aised
Figure 3 is a detached plan view of the mold, which is hinged, the same being
shown separated.
A indicates the staud or main portion of the apparatus having at its lower ond a
transverse vertical opening B foi the reception of a sliding bar 6. Above this
transverse opening B what I term the stationary bottom of the mold, which has
formed therein a vertical opening D in and through which the primary bottom 4
moves up and down. This blank mold D is provided with a vertical transverse
opening which registers with the opening Bm the lower portion of the maiu
portion of the apparatus when the said bottom 4 is in its downward position, and
though this opening the endwise moving bar 6 travels,
Made in the end wise moving bat 6 is the incline slot a having at its outer end
the elongated straight portion and at its upper end the short straight portion m.
The primary bottom 4 is raised and lowered by the cam action of the incline slot
as will be readily understood
Placed over the portion C of the mold end and attached in a manuet hereinafter
described is the main portion of the mold 3 having the neck portion m' and the
enlarged lower portion n. The primary bottom 4 hts within the enlarged portion n
as clearly shown and the upper end of this bottom is provided with the cavity t
for the reception of the lower end of the plunger 1 Placed removably over the
upper end of this mold 3 is a ring 2 having an internal air chamber 1, and au
Price RI

page_text: ai inlet d, having an opening into said chamber. Passing through the ring at
this point and through the opening c, is a valve 10 having its lower end normally
projected beyond the lower base of the removable ring 2, and an air tube 11 is
connected with the inlet d, said ant tube being connected with any desued means
for supplying au. In a factory there will be a mam air supply such as a pump or
other device with which all of the molds will be connected by means of an air
tube 11 for each mold respectively
The plunge is connected with the lower cross-head of an ordinary glass
press, and the ring 2 is connected with this glass press by means of springs in the
ordinary manner.
An-channel 12 extends from the air-chamber II into the opening I formed in
the depending central extension J of the ing 2, entering the same at a point
above the lower end of said extension, and through this opening the plunger 1
passes. From this desciption it will be seen that when the plunger 1 18 down
as shown in Figure 1 and the ring also in its lowered position, the plunger 1
closes the an-chamber and prevents any passage of air into the mold and the
valve 10 is held upward by contact at its lower end with the upper and of
mold 3
Connected with one end of the endwise moving bai 6 is a secondary bottoni e
adapted to pass through the opening d' in the mold 3 when the sard bar is movel
forward for diawing the primary bottom downward, which bottom automatically
takes the place of the blank mold as clearly illustrated in Figure 3.
From this description it will be seen that by a single movement of the
endwise moving bai 6 by the operator depresses the primary bottom 4 and caries
automatically and simultaneously the secondary bottom e in its place for the
mold 3.
The operation of my mvention is as follows.
Glass is placed with the mold 3 when the primary bottom is upward as shown
in Figure 1, and by a movement of the glass press downward the plunger is called
within the glass forming a cavity there in the ordinary manner as is well under-
stood by those well skilled in the pit This being done the operator throws the
end wise moving bat 6 in position shown in Figure 2 thus crying sinultaneously
and automatically the primary bottom + downward and the secon lay bottom e in
place. The press is then moved either by hand, steam or other motive power, thus
canying upward the plunger 1 about half an inch when an is admitted through the
channel om the air-chamber II as will be readily understood thus admitting
ant to the entire intero of the mold and expanding the glass equally at all points
until the same is expanded to fill the mold 3 and thereby form the bottle in the
ordinary manner From this it will be seen that the movement of the press
upward automatically admits an by the movement of the plunger to open the Bu-
channel, and that a further movement of the press hits the ing 2 according
to the tension of the spings which are connected therewith, and when this
ng 2 is lifted above the mold 3 sufficiently far the valve 10 automatically
drops upon its seat thus shutting off the au as is also readily seen from the
diawings.
From this description it will be seen that I have produced a mold which will be
a great saving in time and labor, owing to the fact that but a single movement of
the press is necessary to displace the primary bottom and put in its stead a
secondary bottom e, and that but a single movement of the press is necessary to
automatically admit and automatically shut off the au for expanding the glass into
the desued form.
In Figure 3 the mold is shown in plan view and shown open. From this figuie
it will be seen that the mold is hinged and provided with handles and a lock for
locking the same when it is closed The object of having this mold hinged and
adapted to open as shown is to permit the article formed to be readily remove l
therefiom as is understood.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim 18-
1. A mold compusing a mold body, a vertically movable primary bottom, a
horizontally movable secondary bottom, and a direct communication between said
bottoms, for the purpose described.
2 A mold comprising a mold body, a movable primary bottom therem, a movable
secondary bottom adapted to take its place, and a slide connected with the said
bottoms for moving them simultaneously, substantially as set forth.
3 A mold comprising a mold body, a movable primary bottom within the same,
a movable secondary bottom for taking the place of the pitmary bottom and a slide
carrying said secondary bottom and operatively connected with the said primaty
bottom, substantially as set forth.
4 A mold comprising a mold body, a vertically movable primary bottom, a
horizontally movable secondary bottom, and a handle operatively connected with
both of said bottoms.
5. A mold comprising a mold body, a movable primary bottom for the same,
a sliding rod having a secondary bottom connected thereto, and a cam carried by
said rod adapted to engage and operate the said movable primary bottom.
6. A mold comprising a mold body, a movable piimary bottom within the same,
a rod moving transverse the said mold and operatively connected with the prunaty
bottom, a secondary bottom moving transverse the mold and adapted to take the
place of the pumaiy bottom and operative connections between the said iod and
the secondary bottom, substantially as described.
7. A mold comprising a mold body, a movable pumai y bottom within the same,
the mold body having a transverse opening, a movable 1od or bi within the
opening, a movable secondary bottom adapted to take the place of the said
primary bottom, and operative connections between the bottoms and the rod
whereby the rod simultaneously operates both bottoms for the purpose set forth.
8. A mold comprising a mold body, a movable primary bottom within the same,
the mold body having a transverse opening below the main portion of the mold, an
endwise moving rod within the saine, the said primary bottom having a vertical
opening for the movement of said rod, the rod has ing a cam adapted to operate said
pimary bottom, and a movable secondary bottom adapted to be operated by the
said rod simultaneously with the operation of the primary bottom for the purpose
described
9 A mold compusing a mold body, a movable air chamber above the same
having a vertical plunget opening, the wall of said opening having an air inlet, the
wall of said chamber having a valve au mlet, the said valve adapted to engage the
upper wall of said mold, and a plunger within the said vertical opening and adapted
to close the air inlet.
10 A mold comprising a mold body, a movable au chamber above the same
having a vertical plunger opening, the walls of said opening having an air inlet,
a valved an inlet for the said an chamber, and means for opening said valve when
the au chamber is in its downward position, substantially as described
11. A mold comprising a mold body, a movable air chamber above the same
having an air inlet in the said mold, a vertically moving plunger adapted to close
the said inlet, and a valved an inlet to the said chamber and an air supply,
substantially as specified
12. A glass mold compusing a mold, a movable combined ring and air chamber
having a plunger opening the wall of which is provided with an air inlet, a plunger
movable in said opening and adapted to open and close said air inlet, in combination
with a press and its head, the plunger having a fin connection with said head,
and the ring and au chamber, a yielding connection with the same head, whereby
a single upward movement of the head first lifts the plunge and admits an, and

page_text: a continuation of the same movement of the head lifts the combined air chamber
and ring, substantially as described.
Dated this 24th day of December 1894
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C, Agent for the Applicant.