Improvements in Apparatus for Manufacturing Glass Bottles and other Articles.
Year: 1899

page_text: Date of Application, 14th Feb., 1899-Accepted, 17th June, 1899
COMPLETE SPECIFICATION.
Improvements in Apparatus for Manufacturing Glass Bottles and
other Articles.
We, JOHN JOSEPH POWER, of 2121, Penn Avenue, Pittsburgh, County of
Allegheny, State of Pennsylvania, Glass-blower, THE SIMONDS MANUFACTURING
COMPANY, of 25th Street and Liberty Avenue, Pittsburgh aforesaid, Manufac-
turers, and JAMES NEGLEY COOKE, of 440, Diamond Street, Pittsburgh aforesaid,
Attorney-at-Law, all of the United States of America, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:-
Our invention relates to apparatus for manufacturing glass bottles and other
glass articles, and has for its object to provide a simple form of apparatus for the
manufacture of such articles by which the work can be carried on accurately
and expeditiously at one operation without the handling of the article until it is
finished. A further object of our invention is to manufacture such articles
rapidly and in a cheap and workmanlike manner, and a still further object is to
provide an apparatus which will finish the neck of a bottle at one operation
when the same can be carried and blown to shape and finished while still confined
in the neck mould.
Our invention consists, generally stated, in the novel arrangement, con-
struction and combination of parts as hereinafter specifically set forth and
described and particularly pointed out in the claims.
To enable others skilled in the art to which our invention appertains to construct
and use the apparatus, we will describe the same more fully, referring to the
accompanying drawings, in which Figure 1 is a side view thereof, showing the
parts in their normal positions with the press mold lowered and the plunger
raised, the parison and neck mold being under the blow pipe, which is ready to
be lowered to blow the bottle into finished shape in the body mold below the same.
Figure 2 is a front view of the apparatus showing the press mold in its raised
position with the neck mold resting on top of the same and the plunger lowered
therein to form and finish the neck of the bottle. Figure 3 is a top view of the
rotary table, showing the standard in section and the molds in their different
positions thereon. Figure 4 is a top view of the frame or base with the rotary
table removed. Figure 5 is a cross section on the line 5-5, Figure 4, showing
the parts for raising and lowering the plunger and press mold in another position.
Figure 6 is an enlarged detail cross-section of the body and neck molds and the
blowing device in position for blowing the article to finished shape. Figures 7
and 8 are enlarged detail sections of the rotary plunger disk. Figure 9 is an
enlarged detail view on the line 9--9, Figure 5, showing the device for raising
and lowering the press mold. Figure 10 is a detail view of the slide and press
mold, and Figure 11 is an enlarged sectional view of the finished bottle.
Like letters herein indicate like parts in each of the figures of the drawings.
Our improved apparatus for making glass bottles is provided with the main
frame a, which is preferably supported on the wheels bb mounted on the front
and rear axles c¹, the front axle c being adapted to turn on the fifth wheel c

page_text: secured in the frame 3 on the main frame a, so as to permit the apparatus to be
moved to any part of the works in which it is used by means of a tongue c
engaging with the fifth wheel c through the loop secured thereon. The main
frame is provided with the top plate a on which is mounted the upright
standard, which is secured to the top plate a¹ by means of the pillow block d
thereon. Journaled in bearings el secured to the top plate a¹ are the wheels or
rollers for supporting the rotary table e, which is provided with an opening e
therein for fitting, loosely, around the standard d to permit the rotation of the
same, the rollers e² traveling on a track et on the bottom of the rotary table e,
so as to enable the easy movement of the same. Pivoted within a bearing f
secured on the top plate al is the spring catch f having the handle which is
adapted to engage with any one of a series of seats e formed around the outer
edge of the rotary table e to lock the table in any position desired. A spiral
spring connects with the catch f and to a sliding plate f', which is adapted to
move within the bearing f¹ to permit the adjustment of and hold the catch f in
contact with the rotary table e when locked, and a number of handles e are
secured to the top surface of the rotary table e to enable the operators to grasp the
same to move the table c. Mounted on the top of the rotary table care the body
molds which are preferably four in number and formed in sections hinged
around posts g secured in the table e in order that they may be hung together and
adapted to be thrown apart. The body molds are adapted to fit over the open-
ings formed in the table c and are provided with the handles thereon for
opening and closing the same, and in each section of the molds are formed the
cavities corresponding to the finished shape of the body portion of the bottle
to be formed. The molds illustrated in the drawings are adapted to make
what is known as a common stock mustard bottle, although any particular kind
of bottle can be made by the apparatus by simply changing the molds. Hinged
around the posts g¹ are the neck molds h which are formed in sections so as to
be hung together and be adapted to be drawn apart by means of the handles h¹
secured thereon. Each section of the neck inolds is provided with the cavities 42
for forming the finished neck of the bottle and is adapted to fit closely down on
top of the body molds g by means of the seats g on top of the molds y fitting
around the neck molds. The posts g¹ are preferably secured in slides 6 mounted
in slots g in the rotary table è so as to enable different sizes and shapes of molds
to be used. Secured within the rotary table e are the posts around which are
mounted the bars which are raised and lowered on the posts by means of the
set screws engaging therewith, and in the opposite ends of the bars are
the adjusting screws held by jam nuts for engaging with the neck molds h
to act as a stop to centre the molds g and during the movement of the same.
Secured to the standard at or near its upper end are the brackets j', which are
provided with the guides thereon having the slides secured thereto within
which move or slide the upper and lower cross-heads connected together
by the screw bar which travels or screws through the upper cross-head and
is rigidly secured to the lower cross head ¹. Engaging with the screw bar
above and below the upper cross-head k are the jam nuts to permit the
raising and lowering of the upper cross-head when desired.
Mounted upon the screw bolt on the lower cross-head is the rotary discl
which is provided with a series of tapered plungers m engaging with the disc by
the screw plugs m' thereon and each of the plungers m having a collar m² at or
adjacent to the rotary disc 7. A number of seats are formed on the outer face k³
of the lower cross-head with which a head on the end of a forked bar /
passing through an opening in the disc engages. A spiral spring fits around
the forked bar in the opening against the head on the forked bar and
the contracted portion of the opening engages with the bar 7. The forked
bar is pivoted to the handle 18 at its outer end and the handle is pivoted at
its opposite end to the post 79 secured to the rotary disk 7. In order to centre the
plungers m properly, they are preferably screwed by means of their screw plugs m¹

page_text: into slides 10 having tapered faces thereon engaging with the seats 11 provided
with the tapered faces in the rotary disk 1, and set screws 112 are adapted to
engage with the front face of the disk 7. Set screws 13 also engage with the sides
of the slides 10 through the seats (11 to further assist in centering the plungers m
to place.
above
Fitting loosely around the screw bar is the upper spring plate n which is
held in place by means of the jam nuts n¹ n² engaging with the screw bar
and below the upper spring plate n. Below the upper spring plate n is the lower
spring plate o having the opening therein for the passage of the tapered
plungers m through the same and which is connected to the upper spring plate n
by the front and rear spiral springs 02 03 on each side of the lower cross head k¹
and tapered plungers m and between the upper and lower spring plates n o.
Bolts are secured in the lower spring plate o within the front spiral springs o
which extend through the upper spring plate n and are provided with the heads o
at their upper ends, and studs o are secured in the lower spring plate o and
extend up a short distance within the rear spiral springs 03.
Pivoted within the upper cross-head k at p₁ are the links which are pivoted
at the lower ends 23 to the forked ends 2 of the forked lever p, which is pivoted
or fulcrumed at pin the bearing 26 secured to the upright standard d and the
opposite end of forked lever p being pivoted at 761 to the connecting rod 27,
the said lever having a number of openings 78 therein for engaging with the
pivot in the bearing 76 to regulate the amount of throw or travel of the
The
plungers m and their connecting parts through the medium of the lever p.
connecting rod 27 extends down and is pivoted at q' to a disk q which is mounted
on the main shaft q secured in bearings g³ on the rear of the main frame a.
rod is pivoted to the disk qat q, the opposite end of which is pivoted at g
to the slotted arm r¹ of the bell crank lever which is mounted on a shaft 72
A number
secured in bearings on the downwardly projecting standards.
A
of openings can be formed in the disk q at irregular points to secure the pivots q
and q on the rods p and q at any point desired to regulate the movement of the
rods and and the parts connected thereto and operated therefrom, and the
rod is provided with the adjusting nut 18 engaging with right and left hand
The main shaft 2 is
screw threads thereon to vary the length of the same.
provided with the operating lever at one end thereof for moving the disk g
to operate the machine, and the weight secured on the bar q" which is
journaled on the shaft by the bearing 12. The other slotted arm of the
bell crank lever r is connected to a slotted liuk by means of the pivot, and
the link has a forked rod rigidly secured in its upper end and is pivoted
at 8 through its forked end to a link pivoted at in the opening of the
slides which is adapted to move through an opening a² in the top plate a¹ and
the openings in the rotary table e, and is provided with the bottom or press
mold on its upper end, which is removably secured thereto by means of a screw
plug inserted through the opening in the slides and screwing into the
bottom of the press mold, having a key seat in its opposite end with which a key t
engages to hold the press mold in place in its seat 2 in the top of the slide s,
said mold being provided with the cavity t¹ in the centre thereof. The adjustment
of the length of the rod can be regulated by the jam nuts 10 engaging with
right and left hand threads on the rod i on each side of a right and left hand
nutron said rod . The slide s moves in the guides s secured to the under
surface of the top plate a¹, to which guides s' are secured the downwardly pro-
jecting standards, and strips 3 hold the slide s within the guides s¹. Hinged
to the standards is the rocking frame u, which is provided with the upright
bars having heads thereon for engaging with the bottom faces of the slide s
and which are secured in the tilting bar 3 pivoted at ut to the standards by
means of the jam nuts u³. Extending across and secured to the upright bars u¹
is the cross brace 6 which is provided with the opening therein for the passage
of a rod us which is pivoted to the rod and is provided with a nut u³ thereon

page_text: in the rear of the cross brace 76. A spiral spring u10 connects with the rod us
and with a rod 11 secured in the cross brace u.
within which moves
Secured to the standard d by braces 2 is the cylinder
the air pipe having the pins thereon moving in slots et in the sides of the
cylinder, one of said pins being secured to a cam having a handle
thereon for raising and lowering the air pipe v, the outer face of the cam engages
with a lug on the outer surface of the cylinder during such movement. A
flange is formed on the lower end of the air pipe which is adapted to engage
with the top of the neck molds h when the air pipe is in its lower position, and
below the flange is the straight face or head which rests in the cavities
of the neck molds h, and which terminates in a tapered point below the same
having a series of openings therein communicating with the interior of the
air pipe for the escape of the air when blowing the bottle to finished shape within
the body mold g. A spiral spring 14 is secured around the air pipe between
the top of the cylinder and a collar 15 thereon, to which a flexible connec-
tion 6 is attached to hold the pipe in its raised position after the camis
released. When the pipe is lowered by the cam, the spring 14 acts to hold
the pipe down, so as to form a tight connection between the pipe and neck
mold and prevent the air pressure from forcing the air pipe v upward.
The operation of our improved apparatus for making glass bottles, etc., is as
follows:
The parts of the apparatus being in their normal positions, as shown in
Figure 1, and everything ready to begin operation, with the press mold t in its
lowest position beneath the rotary table below one of the body molds g which
is open to its widest position, and the neck mold h above the press mold t being
closed so as to receive the press mold when the latter is raised, the gatherer then
gathers a sufficient quantity of hot glass on a punty or gathering iron from the
furnace or pot (which is located in close proximity to the machine), and drops it
into the cavity in the press mold t. After this is done the operator pulls down
the operating lever q so moving the main shaft and with it the disk which
by its movement forces the connecting rod 7 and the rear end of the forked
lever upwardly and the forked ends of the lever ? downwardly through the
pivot or fulcrum p³, so lowering the cross-heads and allowing the lower
spring plate o to come in contact with the top of the neck mold h. The disk
with the same movement turns the bell crank lever on the shafts 2 through the
medium of the rod q connected to one arm thereof, the other arm of the
bell crank lever being connected by the slotted link of the rod pivoted
by means of a link to the slide s upon which the press mold t rests, so
raising said press
mold containing the molten glass under and against the
neck molds h. The slotted arm pl of the bell crank lever with
which the link with its rod 7 is connected, allows the link 5
and rod to move backward within the arm, without exerting any
pressure on the press mold t after it has been brought into placq against the
neck mold h, which permits one of the plungers m to be lowered further by the
continued movement of the operating lever 7, so as to enter through the neck
mold into the press mold t in order to perform the pressing. During the
raising of the press mold t the spring u10 exercises its tension upon the rocking
frame u drawing it against the slides and allowing the upright bars u¹, when
the press mold is in its elevated position immediately after the slide is raised
above the main frame a and rotary table e, to fit under the slide so as to hold the
press mold in such raised position during pressing. While one of the plungers m
is being lowered in the press mold t by the continued pressure on the lever q
and the lower spring plate is resting on top of the neck mold h, the springs 02 03
are being compressed so allowing the bolts o' in the springs o2 to rise above the
upper spring plate n and the studs of to travel within the springs o³. During this
pressing operation the plunger m will enter the molten glass within the press
mold and force the molten glass up within the cavity of the neck mold h,

page_text: so forming the neck and rim of the bottle and the parison thereof below the same
in the cavity t¹ of the press mold, after which the lever q" can be pushed back
or returned to its normal or first positon, and by this return movement the disk
forces forward the rod us and the adjustable nut u thereon which presses against
the cross brace and forces the upright bars u from under the slides s, thus per-
mitting a complete return of all the parts to normal position, and leaving a
perfectly finished neck and rim and bulb or parison of glass suspended from the
neck mold h. The spring catch f can then be drawn out of its seat e in the
table e and the table rotated by a boy by means of the handles e until it is
caught by the catch f being drawn or dropped into the next seat by the spring f³
attached thereto. This rotation of the table e brings the neck mold with its
suspended parison and body mold under the air pipe and another neck
mold and body mold g into position above the press mold t for another operation.
The boy immediately closes the body mold g around the suspended glass parison
and draws down the air pipe by means of the cam 5, thereby bringing the
flange down on the neck mold h and the tightly fitting head down into the
top of the neck mold h and bottle neck of the parison with the tapered point vll
below the same, when the air can be admitted within the air pipe and passing
out of the openings 2 in the tapered point thereof will form the body of the
bottle. In the meantime another parison has been made or pressed, and the boy,
having raised the air pipe by the cam 5 from the neck section h and body mold g
rotates the table e, bringing the perfected bottle to a position where it is allowed
to remain in the closed mold for the purpose of cooling. At the next operation
the boy opens the molds and takes the bottle therefrom, and the molds are then
rotated into position over the press mold to form another operation.
If desired narrow neck bottles may be made by this apparatus, as the press
mold will afford convenient space or width to deposit the glass which could
not be deposited into the space of narrow neck width, and when narrow neck bottles
are to be made, a collar or ring adapted to work on the neck section in connec
tion with the press mold may be used which will taper to the narrowness of the
neck of the bottle.
The rapidity with which the glass is separated from its contact with the press
mold leaves the glass so hot that it is necessary on wares of medium sizes and
upwards that the operator close the body mold immediately around it, otherwise
the glass will have become so distended that the mold cannot be closed around it,
and for the same reason the air must be applied immediately when the blowing
position has been reached, thus making the process exceedingly rapid. It is
apparent that small bottles can be made by placing a number of cavities in the
main mold with which several plungers can engage and which can be fed under
a series of air pipes to blow the parisons thereon to the finished form, and it is
also apparent that the fourth or closed position can be dispensed with if desired.
It will thus be seen that our improved apparatus for making glass bottles, etc.,
is exceedingly simple and rapid in operation and a bottle can be made at one
operation without handling the same or requiring it to be shifted to other molds
or devices for finishing it, and practical experience has proved that a bottle
made on such a machine is accurate and true as to finish. By the use of the
rotary plungers, different sizes can be used for different wares and when one
plunger becomes hot another cold plunger can be used. The raising of the press
mold to connection with the neck mold and the lowering of the plunger is accom-
plished simultaneously at one operation, thereby avoiding separate operations of
the same and the harmful chilling of the glass. If desired the opening in the
rotary table can extend all around the same so that the table can be rotated
immediately upon the withdrawal of the plunger out of the neck section and
without waiting for the press mold to attain its lower position and thereby the
glass is prevented from becoming chilled.
Various modifications in the construction, position and design of the various

page_text: parts of the machine may be resorted to without.departing from the spirit of the
învention or sacrificing any of its advantages.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is
1. In apparatus for forming glass articles, the combination of a rotatory table,
a press mold fixedly situate beneath the table at the charging point adapted to
receive the molten glass through the table, a mold in which the neck is formed,
and a plunger above the press mold and in line therewith.
2. In apparatus for forming glass articles, the combination of a plunger, a rotary
table, a mold in which the neck is formel, a press mold fixedly situate beneath
the table, and mechanism for moving the plunger and press mold simultaneously
toward and away from each other.
3. In apparatus for forming glass articles, the combination of a rotary table, a
press mold fixedly situate beneath the table at the charging point adapted to
receive the molten glass through the table, a mold in which the neck is formed,
a plunger above the press mold and in line therewith and mechanism for moving
the press mold to and from the neck mold.
4. In apparatus for forming glass articles, the combination of a rotary table, a
press mold fixedly situate beneath the table at the charging point adapted to
receive the molten glass through the table, a mold in which the neck is formed, a
plunger above the press mold and in line therewith, mechanism for moving the
press mold to and from the neck mold, and mechanism for automatically locking
the press mold in its raised position.
5. The combination of an endless carrier, a plurality of neck molds carried
thereby, a single press mold fixedly situate beneath the carrier at the charging
point and adapted to receive the molten glass through the endless carrier, and
mechanism for raising and lowering the press mold to and from each of the neck
molds.
6. The combination of an endless carrier, a plurality of neck molds carried
thereby, a single press mold fixedly situate beneath the carrier at the charging
point and adapted to receive the molten glass through the endless carrier,
mechanism for raising and lowering the press mold to and from each of the neck
molds, and mechanism for automatically locking the press mold in its raised
position.
7. The combination of an endless carrier, a plurality of neck molds carried
thereby, a single press mold fixedly situate beneath the carrier at the charging
point and adapted to receive the molten glass through the endless carrier, a
vertically movable slide connected to the press mold, and mechanism connected
to said slide for raising and lowering the same.
8. The combination of an endless carrier, a plurality of neck molds carried
thereby, a single press mold fixedly situate beneath the carrier at the charging
point and adapted to receive the molten glass through the endless carrier, a verti-
cally movable slide connected to the press mold, mechanism connected to said
slide for raising and lowering the same, and mechanism for automatically locking
the slide in its raised position.
9. The combination of an endless carrier, a plurality of neck molds carried
thereby, a press mold mounted on a vertically movable slide for receiving the
molten glass, a rod pivoted to said slide and connected to a shaft, and mechanism
connected to said shaft for raising and lowering the press mold to and from each
one of the neck molds, substantially as and for the purpose set forth.
10. The combination of an endless carrier, a plurality of neck molds carried
thereby, a press mold mounted on a vertically movable slide for receiving the
molten glass, a rod pivoted to said slide, and mechanism connected to said rod
for raising and lowering the press mold to and from each one of the neck molds,
substantially as and for the purposes set forth.

page_text: 11. The combination of an endless carrier, a plurality of neck molds carried
thereby, a press mold mounted on a vertically movable slide for receiving the
molten glass, a rod pivoted to said slide and provided with a link thereon, and
mechanism connected to said link for raising and lowering the press mold to and
from each one of the neck molds, substantially as and for the purposes set forth.
12. The combination of an endless carrier, a plurality of neck molds carried
thereby, a press mold mounted on a slide for receiving the molten glass, a rod
pivoted to said slide and provided with a link thereon, a bell crank lever mounted
on a shaft having one arm journaled in said link, and mechanism connected to the
opposite arm of the bell-crank lever for raising and lowering the press mold to
and from each one of the neck molds, substantially as and for the purposes set
forth.
13. The combination of an endless carrier, a plurality of neck molds carried
thereby, a press mold mounted on a slide for receiving the molten glass, a rod
pivoted to said slide and provided with a link thereon, a bell crank lever mounted
on a shaft having one arm journaled in said link, a rod connected to the opposite
arm of said bell-crank lever, and mechanism connected to said last named rod for
raising and lowering the press mold to and from each of the neck molds, sub-
stantially as and for the purposes set forth.
14. The combination of an endless carrier, a plurality of molds carried thereby,
a press mold for receiving the molten glass mounted on a slide, a rod pivoted to the
said slide and provided with a link thereon, and a bell-crank lever mounted on a
shaft having one end journaled in said link, and a rod connected to the opposite
end of the bell crank lever and connected to a disk or arm on the main shaft to
raise and lower the press to and from each one of the molds, substantially as and
for the purposes set forth.
15. The combination of an endless carrier, a plurality of molds carried thereby,
a press mold for receiving the molten glass mounted upon a slide, means for
raising and lowering the press mold to and from the plurality of molds, and a
rocking or tilting mechanism adapted to engage with said slide to automatically
lock the press mold in its raised position, substantially as and for the purposes
set forth.
16. The combination of an endless carrier, a plurality of molds carried thereby,
a press mold for receiving the molten glass mounted upon a slide, mechanism for
raising and lowering the press mold to and from the plurality of molds, a rocking
or tilting mechanism adapted to engage with the slide to automatically lock the
press mold in its raised position, and means connected to the raising and lowering
mechanism to operate the same, substantially as and for the purposes set forth.
17. The combination of an endless carrier, a plurality of molds carried thereby,
a press mold for receiving the molten glass mounted upon a slide, mechanism
for raising and lowering the press mold to and from the plurality of molds, a
rocking or tilting mechanism to engage with the slide to lock the press mold in
its raised position, and a rod connected to the raising and lowering mechanism
having a nut thereon adapted to engage with the rocking or tilting mechanism to
operate the same, substantially as and for the purposes set forth.
18. The combination of an endless carrier, a plurality of molds carried thereby,
a press mold for receiving the molten glass mounted upon a slide, mechanism for
raising and lowering the press mold to and from the plurality of molds, a rocking
or tilting mechanism adapted to engage with the slide to lock the press mold in its
raised position, a rod connected to the raising and lowering mechanism having a
nut thereon adapted to engage with the rocking or tilting mechanism, and a
spring connected to the rocking or tilting mechanism and to the raising and lower-
ing mechanism to operate the same, substantially as and for the purposes set forth.
19. The combination of a pressing head, a rotatable disk mounted on said pres-
sing head, slides mounted within said disk, and a series of plungers connected to
said slides.
20. The combination with the pressing head, having seats of a rotatable disk

page_text: mounted on said pressing head,
a series of plungers on said disk
an operating handle having a rod thereon extending through the disk and adapted
to engage with seats in the pressing head, and a spring fitting around the rod
within the disk, substantially as and for the purposes set forth.
21. In blowing mechanism, the combination of a cylinder or support, a hollow
blowing tube extending through the cylinder or support, and a cam or eccentric
engaging with the hollow blowing tube to raise and lower the same, substantially
as and for the purposes set forth.
22. In blowing mechanism, the combination of a cylinder or support, a hollow
blowing tube extending through the cylinder or support, a slot within said cylinder
or support, and a cam or eccentric having a pin thereon extending through said
slot and engaging with the hollow blowing tube to raise and lower the same, sub-
stantially as and for the purposes set forth.
23. In blowing mechanism, the combination of a cylinder or support, a hollow
blowing tube extending through the cylinder or support, means engaging with
the hollow tube for raising and lowering the same and means for holding the
hollow blowing tube in its lowered position,, substantially as and for the purposes,
set forth.
24. In blowing mechanism, the combination of a cylinder or support, a hollow
tube extending through the cylinder or support, means engaging with the
hollow tube for raising and lowering the same, and a spring connected to said
hollow tube to hold it in its lowered position, substantially as and for the purposes
set forth.
25. In blowing mechanism, the combination with a mold, of a cylinder or
support, a hollow blowing tube extending through the cylinder or support, a
series of openings at the lower end of the hollow tube, and a rigid flange or collar
on said blowing tube for engaging with the top of the mold, substantially as and
for the purposes set forth.
26. In blowing mechanism, the combination with a mold, of a cylinder or
support, a hollow blowing tube extending through the cylinder or support, a rigid
flange or collar on said blowing tube for engaging with the top of the mold, and a
tapered point below said flange having a series of openings therein, substantially
as and for the purposes set forth.
27. In blowing mechanism," the combination with a mold, of a cylinder or
support, a hollow blowing tube extending through the cylinder or support, a rigid
flange or collar on said blowing tube for engaging with the top of the mold, a
straight or flat face below said rigid flange or collar for entering said mold, and
a tapered point below said straight or flat face having a series of openings therein,
substantially as and for the purposes set forth.
28. In apparatus for forming articles of glassware, the combination with a press
mold, of a plunger, mechanism for raising the press mold and for lowering the
plunger simultaneously, mechanism for locking the press mold in its raised
position, and mechanism for continuing the downward movement of the plunger
after the mold has been locked.
01 February 1899.
D. YOUNG. & Co.,
11 and 12, Southampton Buildings, London, W.C.,
Agents for the Applicants.