Improvements in Glass Blowing Machines.
Year: 1897

page_text: Date of Application, 26th Jan., 1897-Accepted, 13th Mar., 1897
COMPLETE SPECIFICATION.
Improvements in Glass Blowing Machines.
We, MICHAEL JOSEPH OWENS, of No. 1847 Michigan Street, and HENRY
JOSEPH COLBURN, of No. 531 Laskey Avenue, both of Toledo, in the County of
Lucas and State of Ohio, United States of America, Mechanical Engineers, 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 :-
This invention relates to glass-blowing machines, and more particularly to
automatic machines of that class, and our invention consists essentially in the air-
controlling mechanism, whereby the degree of pressure given to the blow-irous is
applied as desired; and improved means for supporting and adjusting the blow-
irons and their connections; and certain improved constructions pertaining to the
sectional mold, all as hereinafter described and claimed.
Referring to the drawings, forming part of this specification,-
Figure 1 is an elevation of a glass-blowing machine constructed according to our
invention.
Figure 2 is an enlarged plan view of the base of the machine, showing the
central shaft and portions of the frame in section.
Figure 3 is a vertical section through Figure 2, on line 3-3.
Figure 34, is a plan view of the rotating bottom of the sectional mold.
Figure 4 is an elevation, still further enlarged, of the upper extremity of the
machine, partly in section."
Figure 5 is an elevation of two cams shown only in section in Figure 4.
Figure 6 is a view of the upper end of one of the blow-irons and its receiving
socket.
Figure 64, is a detail view of portions of Figure 4, and is hereinafter described.
Figure 7 is a plan view on the same scale as Figure 2, of the friction-ring and its
arms, and having a portion of its hub broken away showing in section the position
of two cams secured on the hub thereof, and means for holding said friction-ring
against rotation.
Figure 8 is a sectional view taken on line 8-8, Figure 4.
Figure 9 is an end view of a portion of the mold-opening mechanism.
Figure 10 is a view, in perspective, of the main parts of Figure 9.
Figure 11 is a plan view of the latch on one of the arms of the lower of the two
spiders carried on the central shaft of the machine.
Figure 12 is a side view of said latch.
Figure 13 is a plan view of a spring clip on the upper one of the said two spiders.
In these various figures, like letters of reference and numerals refer to like
parts.
On a suitable base A, are secured, by bolts, the three posts or arms B, whose
upper ends converge to a central hub C, to which arms B, are bolted. Said base A,
and arms B, are preferably made of cast iron.

page_text: Said central hub C, is provided with a vertical aperture therein, in line
perpendicular with the center of base A, through which passes the screw-threaded
sleeve 2.
Said sleeve 2, is supported by the two hand-wheels 3, 3, whose hubs are
threaded to engage the same, one on each side of the said hub C,-and whereby
the said sleeve may be moved vertically and locked in any desired position.
Between the hubs of said hand-wheels and the upper and under faces of said
hub C, are two vulcanite or other washers 4, 4.
Within said sleeve 2, is located the rotatable shaft 5, which is the main-shaft of
the machine and extends from the collar 6, above the end of said sleeve, to and
into the base A.
The upper end of said shaft projects above the end of said sleeve a short
distance, and said collar 6, is secured thereto by any suitable means. In this
case two pins 7, 7, are shown as passed through said collar and the opposite sides
of the shaft securing the collar thereon.
Between said collar and the top of sleeve 2, is a vulcanite or other suitable
anti-frictional washer.
A second collar 8, is secured on said shaft 5, by a screw-bolt, or other suitable
means, at the lower extremity of said sleeve 2. Thus we have a vertically movable
sleeve hung centrally in the top of the frame of the machine, within which is the
shaft 5, rotatably supported therein by a collar, or other suitable means on the top
of said sleeve.
This shaft 5, actuates the various parts of the machine, as below described.
An annular friction-ring 10, (see Figure 7), having the arms 12, and a central
hub 11, fits loosely, and is supported on said shaft 5, between the collar 8, and the
main-hub 13, of the shaft 5; said hub 13, being secured rigidly thereto by a bolt,
or other suitable means.
Said annular friction-ring 10, is held against rotation on said shaft by a short
slotted arm 14, fixed thereto, and engaging a rib on one of the vertical arms B, of
the machine, (see Figure 7).
From the upper extremity of shaft 5, to a point about opposite the center of the
hub 13, said shaft is provided with a central air-passage 5, suitable outlets from
said air-passage to an annular cavity 70, in said hub 13, being provided, and air-
passage 35, from said cavity to the exterior of said hub; a
description of which will be given further on.
more detailed
The shaft 5, is provided with a spline-groove 5º, extending from a point just
under said collar 8, to its lower extremity, the hubs 13 and 15, being provided with
suitable keys engaging said groove whereby said two hubs are rotated, coincidingly,
by the said shaft. Said hub 15, (see Figure 3), is the one to which the sectional
molds 52, are connected, and which are rotated in a circular path on the base A,
of the machine by said shaft 5, and at proper times are opened, immersed in water,
and closed automatically.
Between said hubs 13 and 15, are located the spiders 16 and 17, (see Figures 1),
consisting of suitable hubs having radial arms thereon, one terminating over each
mold of the machine..
These spiders are for supporting the blow-irons 30, in operative relation to the
molds and to the conduits above said blow-irons, as shown in Figure 1; and at
the extremities of said arms are provided means for holding said blow-irons which
will be fully described further on.
The hubs of said spiders are also provided with suitable keys engaging said
spline-groove in the shaft 5, whereby they are engaged to be turned by said shaft.
Set screws in the hubs of said spiders, as shown in Figures 11 and 13, permit them
to be adjusted to any desired position on the shaft.
Any suitable means for driving said shaft 5, may be adopted. A bevel-gear
connection, as shown herein, is preferably employed.
As aforesaid, said main-hub 13, is fixed to the shaft 5, and supports the friction-
ring 10, and its arms and hub on its upper end. An anti-frictional washer of

page_text: vulcanite or other material being interposed between the two bearing surfaces,
as shown.
Cast on the main-hub 13, are the four pairs of short arms 18, (see Figure 8),
each pair receiving the vertically swinging arm 19, which is secured between said
arms 18, by a pin or bolt 20. Each of said arms 19, is provided on its outer end
with a yoke consisting of the two arms 21 and 22, and with means for imparting
to said arms 19, a vertically swinging motion at certain periods in their rotation,
which means consist of a lever 23, pivotally supported by the arms 24, secured to
said hub 13, above and in a line vertically with the center of the arms 19.
From the outer end of said lever 23, depends a rod 25, pivotally connected to
said lever by one end; and by its opposite end engaging, as shown, with said
arm 19.
The inner end of said lever 23, extends back towards the hub of said friction-
ring 10, to which hub is secured an annular surface-cam 26, having a downwardly
curved portion a, as shown in Figure 5.
A roll 27, on the said inner end of said lever 23, bears on said surface-cam and
is held in contact therewith by the weight of said arm 19.
Said surface-cam 26, being secured to the hub of said ring 10, does not rotate,
but said revolving main-hub 13, carries the arms 19, and their operating mechanism,
around within said fixed ring 10, the rolls 27, bearing on the face of said cam, and
the variations of the surface-level operating to impart a vibratory motion to said
arms 19, at the proper time during the said rotation of the parts carried by said
hub 13, causing each arm 19, to be lifted up at the required time and to resume its
position in operative relation with the upper end of the blow-iron, by gravity.
A revoluble shaft 28, having fixed thereon a pulley or friction surface 29,
preferably covered with leather, is supported in suitable bearings in said arms 21
and 22.
Said friction pulley has a suitable intermittent bearing against the inner side of
said fixed ring 10, whereby it is given an intermittent rotary motion, and thereby
causes the blow-iron 30, which may be in engagement therewith, to have like
rotary movement.
The upper extremity of said blow-iron is preferably of rectangular form in cross
section, or of any other suitable form for engagement with a rotating part, as
disk 32.
Said shaft 28, has an air-conduit 72, therein whereby air is conducted to said
blow-iron from a suitable air-conduit, as 5º, contained in or on said main-shaft 5,
by means below described.
Said shaft 28, has a socket in its lower end, as shown, to receive a spiral spring 75,
or other suitable cushion for the blow-iron engaging disk 32, which is held loosely
under said spring by the mouth-piece 31, which is screwed onto the lower end of
said shaft. Any suitable means may be employed, whereby said disk, while free
to move up and down in said socket, is prevented from turning, except when
actuated by said shaft.
Therefore, when said blow-iron is placed in the machine and supported by the
spiders 16 and 17, as shown in Figure 1, such placing thereof takes place while
arm 19, is in its upward position whereby the shaft 28, and its attached devices
are lifted above and out of contact with said ring 10.
Therefore, said blow-iron may be placed in said spiders, guided only by the
enlargement 69, thereon, engaging with the lower spider 17.
Thus said blow-iron is at once placed in such position as places the glass thereon
within the mold 52, and brings its upper end under the lower end of said shaft 28,
to the end that the open lower end of the latter may move against the adjoining
end of the blow-iron and cause the engagement of disk 32, therewith, and air
communication to be established between shaft 5, and the blow-iron.
The purpose of the above described blow-iron actuating and engaging devices is,
to provide means for so simplifying the operation of placing a blow-iron having
glass thereon in a hot plastic state, unfailingly in proper position in the machine

page_text: relative to the mold and the air-conducting devices, that an unskilled person may
easily manipulate the same.
By means of said vibratory movement of the pivoted arms 19, carrying a
shaft 28, the latter are lifted off, successively, from the blow-irons, as soon as the
formation of the glass article is effected, and the blow-iron and its attached article
are then removed from the machine, as usual.
If, when said shaft 28, drops for engaging said disk 32, with the end of the blow-
iron, the end of the latter is not at once received in the square perforation therein,
the disk recedes into said socket, pushed by said blow-iron, but spring 75, holds the
disk against the end of the latter while the perforation therein is brought around
to proper position to drop over the end of the blow-iron, when the latter is
instantly caused to revolve in consonance with shaft 28, and until the article in the
mold shall be fully formed, and then said shaft and disk are lifted from the blow-
iron, and its rotations cease.
The purpose of the above described provision of means for the vertical adjustment
of the said main-shaft, the blow-iron supporting devices, the blow-irons, and air-
controlling devices, simultaneously, above and relative to the mold is, to enable the
operator of the machine to adjust all of the blow-irons at once while on the machine
so that the lower extremities thereof shall be all at equal distances above the tops
of the molds; and for the further purpose of adjusting said lower extremities
quickly and uniformly to such positions above said molds as the treatment of glass
articles of varying lengths above the molds when blown therein, shall demand,
whereby the breakage of said articles in blowing the same is obviated and the
product of the machine is increased.
The upper end of said shaft 28, is counter-bored to receive the piece 33, which
is made to fit freely therein. Said piece 33, has an arm projecting at right angles
therefrom, as shown, and an air passage 73, is drilled from the end of said arm to a
point at which it will intercept said air-passage 72, drilled at right angles thereto,
in the center of said piece 33. Said last-named piece is held against rotation by
the flexible air-tube connection 34, and is of sufficient weight to resist the air-
pressure exerted against its lower end.
The above described means for effecting an air-conduit connection between
shaft 5, and the intermittently rotating shaft 28, is the preferable one, but any
other suitable one may be adopted.
From said arm on piece 33, said flexible connection 34, is carried to a nipple 74,
which is screwed into the air-passage 35, which is made through the bub 13, into
the said central cavity hereinbefore mentioned, which cavity connects, as already
set forth, with the said air-conduit 5".
Therefore, air supplied under pressure to the said air-conduit, passes therefrom
to the cavity in said hub 13, and, if unimpeded, out through the passages 35, (of
which there is one to each of the arms 19, of the machine,) and from thence
through said flexible connections 34, to and through the air-passages within the
piece 33, and shaft 28, to the blow-irons.
An essential feature of this invention is the air-controlling device whereby the
supply of air to the blow-irons can be perfectly regulated as to time of applying
said air-pressure to the plastic glass within the mold, and the amount of the
air-pressure so applied.
It having been demonstrated by practice that such control, is necessary to the
production of a good article by the machine, the appliances herein described and
shown are designed to closely imitate the blowing of glass as practised by a
workman skilled in the art in making such articles by hand, and supplying air-
pressure therefor from his lungs.
Said appliances operate in such manner that the degree of the pressure of the
air blown automatically into the interior of an article in process of formation is
variable, or gradually and automatically increased from the commencement to the
close, or otherwise varied, according to the requirements of the article to be
produced.

page_text: The said means for regulating said air supply consist of a valve 36, for each of
said passages 35, so located within said hub 13, that the upper ends of the valve-
stems stand in operative positions under the lower edge of a tubular cam 37,
secured on the hub 11, of the ring 10.
Between the heads on the outer ends of said valve-stems and the surface of the
annular rib 13, on the hub 13, through which said stems project, is a spiral
spring 38, whereby the upper ends of said valve-stems are kept constantly in
contact with said cam-edge, which is made of such configuration on its depending
edge which is in contact with said valve-stems, that the required degree of air-
pressure at any desired point during the revolution of the molds and their blow-
irons, connected to said blow-iron receiving shaft 28, can be delivered to a mold
arriving at that point at that time by the variable action of each of said valves 36,
to cut off more or less of the air-supply provided for each blow-iron.
At the upper extremity of shaft 5, a loosely fitting piece 39, is inserted into a
counter-bored recess at the end of the air-passage 5ª, therein, and a flexible tube
connection 40, fitting said piece is carried to any convenient source of air-supply.
As said shaft 5, revolves, said piece is held stationary within its said recessed
bearing by the flexible connection which is attached thereto, as aforesaid, in the
same manner that said piece 33, is held by its tube connection 34, the air-pressure
never being of sufficient strength to lift said piece 39, from its seat in the end of
shaft 5.
Figure 7 illustrates said ring 10, in plan view. Said shafts 28, being engaged
with the blow-irons, as above described, swing down and engage said ring and
enclose the upper ends of the blow-irons about at the point 42, thereon, at which
time the mold is closed upon the melted glass carried on said blow-iron, and said
engagement and rotation of said iron and the glass thereon continues while said
shafts move around abcut to the point 41, on said ring; and then the arms 19,
swing upwardly lifting said shafts off from said irons and leaving them free for
removal with the attached blown article.
The introduction and removal of said irons to and from the machine requires no
lifting or dropping movements thereof.
Therefore, during the time that a blow-iron is moving between said points 41
and 42, on said ring 10, it can be removed from its connections on the arms of the
spiders 16 and 17, and another blow-iron carrying a fresh gathering of glass can
be inserted in the mold and in such position on said spider-arms, that the mold,―
which is generally of the paste-lined variety, as it rises out of the cooling-bath,
will close around said gathering of molten glass on the end of said blow-iron, and
the blowing is completed as aforesaid.
At the time of the said complete closing of the mold upon the molten glass, the
stem of the valve 36, which governs the admission of air to the blow-iron, is in
engagement with that part of cam 37, which operates said valve to admit the
degree of air-pressure first required, and the succeeding action of the cam upon
said valve is such as to then vary said pressure, as required, such variation
being, ordinarily, to gradually increase the same as the glass grows more rigid
by cooling.
Some articles demanding more, and some less pressure at any point during the
revolution of the mold around its circular path, said pressure may be diminished
or increased or cut off altogether, according to the necessities of the case, by
giving a proper shape to the edge of said cam 37, against which the end of said
valve 36. bears.
Thus by having a variety of cams 37, which can be applied to the machine, the
work of the latter may be greatly varied and the product of said machine will be
of perfect uniformity.
By the use of the above described devices, it is obvious that the supply of
air through the blow-iron into the gathered glass within the mold, is made
automatically variable as to force or pressure, and intermittent as to supply.
It frequently happens that of the many articles which can be manufactured on

page_text: machines of this class, that there is great variation in the size of such articles, and
it is therefore necessary to provide molds of various dimensions; consequently, the
molds 52, are made removable from the mold-carriers 44, and the main central
shaft 5, carrying the spiders 16 and 17, the arms 19, hung to the central hub 13,
and the non-rotatable ring 10, are made adjustable vertically by means of the
threaded sleeve 2, and hand-wheels 3, 3, as described, whereby all of the operative
clements of the machine above said molds, can be adjusted as a whole without
disturbing the relative interoperative positions of said elements.
From the above statement, it is obvious that by the construction of the machine,
as herein set forth, its adaptability to a great variety of uses is at once apparent,
and by means of the absolute control of the air-pressure, the quality of the work
done by the machine is superior to that heretofore produced.
.
Referring to Figures 2 and 3, views in plan and perspective are shown in Figure 2,
and in section in Figure 3, of improved means for adjusting the two halves of the
sectional molds 52, whereby the central dividing line of said molds may be quickly
brought into perfect alignment with the blow-iron thereby saving much of the time
heretofore required for adjusting said molds.
Figures 9 and 10, show on a larger scale said improved construction, respectively
in perspective with the parts separated, and in end elevation with the parts
together.
In said last-named figure, and also in Figure 3, the slide 43, has a movement
between the upstanding grooved borders of said mold-carrier 44, hinged to the
hub 15, said movement being imparted thereto in one direction by a cam 45,
(see Figures 2 and 3;) located under the said hub 15, and with the edge of
which the roll 46, on the bolt 47, is held in contact by a spring 48, as shown in
Figure 3.
The operation of the mold-carrier is, in its main feature, as follows: The said
carriers and molds have a wheel, 9, thereunder which runs on a track on said
base A, and in the latter is a depression having water therein into which each
mold is carried once in a revolution, for the purpose of wetting the mold to cool it,
and prepare its paste-lined interior to again receive the molten glass from which to
mold another article.
The molds. automatically open upon descending into said water, and in like
manner become closed upon leaving it.
The said bolt 47, has fitting loosely thereon the hubs of two halved arms 49, and
pivotally secured to said arms, (as shown in Figures 2 and 9,) the arms 50, extending
to the arms 51, on each half of the mold 52.
A nut 53, on the said bolt 47, serves to hold said arms 49, in whatever position
they may be placed relative to said bolt. Said arms 49, have a slot or bolt-hole 54,
therein, through which passes the bolt 54", having a nut thereon, which is fixed in
said slide 43.
Said slots are preferably concentric with the bolt 47, and said bolt 54*, in
connection with said bolt 47, serves for steadying said arms 49.
In order to set the molds centrally with the mold-bottoms 55, the nut 53, and
that on said bolt 54", is loosened, and then the mold-sections may be swung right
or left to bring the mold parts to close perfectly around said bottom and in so
moving said mold-sections, the arms 49, are moved about the bolt 47, as a center,
and when said mold is in proper relation to the blow-irons, by setting up said
nut 53, to a bearing and thereby securing said arms 49, in the position to which
they were brought by the adjustment of the two halves of the mold about said
bcttom, the two halves of said mold will always close in the same relative position.
In this manner all of the molds can be quickly adjusted to their respective
blow-irons.
Figure 3 shows, in section, ineans for finishing the botton of certain articles by
making the bottom of the mold of a separate piece and revoluble within the lower
end of the mold, and independently of the latter.

page_text: The bottom of said mold 52, is supported in a cavity in the surface of the mold-
carrier, as shown in Figure 3, and centrally within said cavity a hole is made for
the reception of a short shaft 76, to the upper end of which the bottom 55, of the
mold, is secured and to the lower end of which is secured the beveled gear 56.
Projecting downwardly from the bottom of the mold-carrier is a short arm 57,
on which is pivoted the wheel 9, which supports said mold and mold-carrier in
their circular path around on the top of the base A.
Secured to said wheel 9, and revolving therewith, is a second beveled gear 60,'
in mesh with beveled gear 56. Hence, as the wheel 9, is revolved by the move-
ment of the mold-carrier which is carried around by its connection with the shaft 5,
motion is imparted to said bottom 53, of the mold.
The surface of said bottom piece 55, is provided with radial grooves 61, on its
upper surface, and holes 62, are bored therein to allow the water which may run
off from the interior walls of said mold, (after its immersion in water for cooling
purposes,) to drain off.
The loose fit of said piece 55, in the cavity of the mold-carrier arm permits the
water to find its way out after it has drained through the said bottom by holes 62,
therein.
On the ends of the arms of the spiders 16 and 17, are provided latches for
holding the blow-irons therein.
On said spider 17, said latch, (shown with the jaws open,) consists of two jaws 63,
having two rearwardly extending arms thereon, said jaws being pivotally secured
on the arm of the spider by a bolt 64.
The said rearwardly extending arms on said jaws 63, are offset so that when the
said jaws are crossed and bolted to the face of the arm of the spider, the said two
parts will lie in the same plane. A bow-spring 65, engages the said two arms of
jaws 63, and said jaws being crossed, tends to keep them normally closed.
A pin 66, is inserted into the face of the spider arm in a line with the center of
the guiding-slot 67, and the bolt 64, to the end that when said, spring forces said
jaws together, the pin 66, will force them to close on a line with the center of the
said guiding slot 67.
The open end of said slot has outwardly curved sides, and the jaws 63, beyond
the central point thereof are also outwardly curved, whereby easy entrance of the
blow-iron therein is facilitated.
On the arms of spider 16, latches like that shown in Figure 13, are employed;
these latches are springs and are so formed as to allow the blow-iron to reach its
seat in the bottom of the slot in said arm, the curved arms of the spring bearing
only on the side of the blow-iron next to the open end of said slot.
These latches permit the easy insertion and removal of the blow-irons and yet
hold them securely in their operative positions relative to the air-conduits above,
and the molds below, the said spiders.
Said blow-irons are made with an enlargement 69, about midway between the
ends thereof, whereby each iron has an engagement with its supporting spider-
arm, and is thereby held in proper position after being placed in the machine...
Spider 17, is the lower of the two spiders, and the construction of the latch and
its arrangement when closed, affords a suitable support for the enlargement 69,
on said blow-iron, (see Figure 1,) by which the latter is supported on said
spider-arms.
:
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In an automatic machine for blowing glass, a main-shaft containing an air-
conduit, a mold, a blow-iron, means for supporting the blow-iron on said shaft in
operative relation to the mold, air-conducting and controlling devices supported
on said shaft in operative relation to the blow-iron, and to said air-conduit, and
'

page_text: means for adjusting said shaft, blow-iron support, blow iron, and air-conducting
and controlling devices, simultaneously, to different vertical positions relative to
the mold, substantially as set forth.
2. In an automatic machine for blowing glass, a main shaft containing an air-
conduit, a mold, a blow-iron, means for supporting the blow-iron on said shaft
in disconnection from said conduit, and in operative relation to said mold, and
mechanism interposed between said conduit and said iron, and means intermittently
to connect and disconnect said mechanism with the iron forming an intermittent
air-conduit connection between said iron and said conduit, and means for actuating
said mechanism and for rotating said blow-iron, substantially as set forth.
3. In a machine for blowing glass, an air-conduit, a mold, a blow-iron supported
in operative relation to the mold, and to said conduit, and means interposed between
said conduit and blow-iron whereby the degree of pressure of air against the
interior of an article in process of formation in said mold is variable, substantially
as set forth.
4. In an automatic machine for blowing glass, a main shaft, an air-conduit in
said shaft, a blow-iron, means for supporting the blow-iron on said shaft, an arm
pivoted on said main-shaft, a revoluble hollow shaft hung on said arm having an
air-passage therethrough in communication with said conduit, and a socket for
receiving the end of said blow-iron, a valve interposed between said conduit and
said hollow shaft, means for operating said valve whereby the supply of air to the
hollow shaft is controlled, means for swinging said arm whereby the hollow shaft
is engaged with, and separated from, the end of the blow-iron, and means for
rotating said hollow shaft, substantially as set forth.
5. In an automatic machine for blowing glass, a main shaft, an air-conduit in
said shaft, a blow-iron, means for supporting the blow-iron on said shaft, an arm
pivoted on said main-shaft, a revoluble hollow shaft hung on said arm having an
air-passage therethrough in communication with said conduit, and a socket for
receiving the end of said blow-iron, a valve interposed between said conduit and
said hollow-shaft, means for operating said valve whereby the supply of air to the
hollow shaft is controlled, means for swinging said arm whereby the hollow shaft
is engaged with, and separated from, the end of the blow-iron comprising a cam 26,
fixed around said main shaft, a lever 23, engaging said cam and connected to said
pivoted arm, means for rotating said main-shaft, and the friction-ring 10, with
which a pulley on the hollow shaft engages and is thereby revolved, substantially
as set forth.
6. In a glass-blowing machine, the posts B, of the machine having a hub between
their upper converging ends, a screw-threaded sleeve adjustably supported in said
hub, the main-shaft passing through said sleeve and secured against end wise move-
ment therein, the friction-ring 10, pivoted arms 19, and operating devices for the
arms, revoluble shafts 28, and disks thereon, and one or more blow-iron holding
spiders secured to said shaft, and the hand-wheels 3, having screw-engagement with
said sleeve, substantially as set forth.
7. In a glass-blowing machine, means for adjusting the sections of the molds
thereof for coinciding action in closing, comprising the slide 43, provided with the
bolt 47, and the bolt 54, combined with the arms 49, pivoted on said bolt 47, in
said slide and each having a slot engaging said bolt 54", and connections uniting
said arms and the mold-sections, substantially as set forth.
8. In a glass-blowing machine, the mold-supporting devices comprising the
carrier 44, having the grooved borders, the slide 43, engaging said grooves having
bolt 47, and bolt 54", thereon, the roll 46 on said slide, and the cam 45, which
said roll engages, combined with the arms 49, pivoted on said bolt 47, and having
slot engagement with said bolt 54", the sectional mold and the connections 50,
between said arms and the sections of said mold, substantially as set forth.
9. In an automatic machine for blowing glass, a mold, a mold-carrier, means for
imparting a circular movement to said mold and carrier in a horizontal plane, a
wheel 9, supporting said carrier and mold having a gear 60, on one face thereof,

page_text: combined with a revoluble mold bottom having a gear connection with said
gear 60, whereby the said movement of the mold-carrier imparts a rotary motion
to said mold bottom beneath the same, substantially as described.
Dated this 22nd day of December 1896.
MICHAEL JOSEPH OWENS.
HENRY JOSEPH COLBURN.
Haseltine, Lake & Co.,
45 Southampton Buildings, W.C., Agents for the Applicants.