Improvements in Glass Blowing Machines.
Year: 1895

page_text: Date of Application, 22nd Oct., 1895-Accepted, 23rd Nov., 1895
COMPLETE SPECIFICATION.
Improvements in Glass Blowing Machines.
We, MICHAEL JOSEPH OWENS of No. 1847 Michigan Street, Toledo, Ohio,
Glass Blower, and EDWARD DRUMMOND LIBBEY of No. 1825 Collingwood
Avenue, in the said City of Toledo, Manufacturer, both in 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 particularly described and ascertained in and by
the following statement
-
This invention relates to a partially automatic minchine for blowing glass into
paste molds, the object being to provide a machine which is susceptible of practical
use for the rapid production of large quantities of glass vessels or objects of a
given shape
The machine of this invention embodies a means for supporting the blow-pipe
with its one end in communication with the air-supplying device and its other in
operative proximity to or within the mold, certa means for automatically
admitting an though the blow-pipe; a sectional mold which is adapted to be
closed about or adjacent the gathering end of the blow-pipe and to be also
automatically opened whereby the paste-covered inner surface thereof may be
subjected to a spinkling action, meaus for automatically effecting the closing and
afterwards the opening of the mold-sections, and for imparting to them while they
are closed rotary motions, and means for automatically causing a spinkling of the
paste-lined mold-sections while opened. The automatic operations are instituted
by, and in consequence of, the placing of the blow-pipe which has the gathering
of glass thereon, in the machine in its position of support and for the reception of
air communication therethrough.
The invention consists in certain constructions of devices and in the combination
for co-operative action of various devices all substantially as will bereafter fully
appear.
Reference is to be hind to the accompanying diawings, in which→
Figure 1 is a side elevation of the present improved machine partly in section,
the blow-pipe heing shown in place and the mold closed.
Figure 1 is a perspective view of the mechanism which operates the yoke
which closes the mold and permits it to open.
Figure 2 is a fiont elevation of the machine.
Figure 3 is a horizontal section as taken on the line 3-3, Figure 2, showing
part of the machine, is, the sectional mold and the operating yoke therefor.
Figure 4 is a front elevation of the part shown in Figure 3, the yoke being scen
in vertical section.
Figure 5 is a plan view as seen below the plane indicated on the line 5-5,
Figure 1.
Figme 6 is a vertical sectional view of parts as taken on the line 6-6,
Figure 5.
Figure 7 is a central vertical section through the clutch mechanism which
effects the starting and automatic stopping of the machine.
Figure 8 is a cross sectional view of the intermittently operating shaft on which
the clutch is mounted together with a face view of the clutch.

page_text: Figure 9 is a similar view as taken on the same plane of cross section as Figure 8,
but looking in the opposite direction whereby the face of the constantly rotating
genr-wheel is scen
Figue 10 is a plan view of the parts seen in Figure 7 below the plane indicated
by 10-10
Similar characters of reference indicate coresponding parts in all of the views.
A detailed deseoption of the mechanism and parts thereof will be now descubel
to be followed by the description of the operation.
The mache embodies the standard A, of suntably massive and stable construction,
and having a wide base, and has near the bottom thereof bearings for the horizontal
rotatable shaft B, and also for the diving shaft C; above the shaft B, are, at
varying heights, the forwardly extending shelf-like projections D, E and F.
The brachet D, has vertical bearings for the shaft G, which at its upper end
caries the base 1, upon which the mold-sections b, b, are pivotally supported, they
having suitable cars which are pinned to lugs provided upon said base.
The mold-supporting shaft G, by the bevel-geais d, has connection with the
counter-shaft e, which also has the pinion, thereon, that meshes into the gear ƒ³,
which is fixed on shatt B
Above the bracket D, is the hinged yoke II, which encueles the mold-base and
is adapted upon its upward swinging movement to have a cam-like impingement
against the edges of the weighted wings 2, of the mold-sections and thereby to
swing said sections, against then tendency to gravitate and open, into then closed
positions, which positions are seen in Figures 1 and 2
The yoke has the depending adjustable screw g, the lower end of which is in
bearing against the vertically movable baik, the ioller 2, journaled at the lower
end thereof resting peripherally upon the cam-wheel J, which is fixed upon the
aforesaid shaft B.
The bracket E, as particularly seen by the Figures 5 and 6, has the recess,
within its forward edge the width of which at its inner boundary is such as to
permit the engagement thereat of the necked-down portion, 20, of the blow-pipe K.
The dog, is mounted upon the top of the bracket E, and is connected to swing
thereon across, and away from across, sand recess 2, and also to have in addition to
its swinging movement an endwise shding movement, all by reason of the pin and
slot connection indicated at ", Figure 5 The stop-p 22, hants undue inward
Swinging movement of this dog.
Under and alongside of the bracket E, is a rock-shaft I, having at its opposite
ends the upwardly and the more or less nearly horizontally extending arms and 12,
the one, being in engagement with the aforesaid dog, to be by the dog swung
when the latter hos imparted to it its end wise sliding movement
The other arm,
has connected to it the flexible connection, which is secured to the bai m, which
18 movable vertically in suitable guideways therefor.
This hai has, applied thereto, the sping m², whereby it normally is forced to the
limit of its downward movement which is in the path of the clutch-dog o, cai ried by,
and within a suitable recess of, the clutch-care o², which is affixed upon the
aforesaid shaft B.
The spring o, exerts a tendency to move the dog o, when it may be permitted so
to be moved, into clutch engagement with the wheel M, which is loose and
constantly rotating upon the shaft B, by reason of its being geared to the diving
shait C The lower extremity of the afores und bat m, is beveled as seen by the
cross section of this bar which appears in Figure 10
The reservon N, is supported beneath le bracket E, and between it and the
level of the sectional paste-mold and has the conduit 4, leading forwardly from its
front and terminating in the branched extremities which are provided with the
downturned spinklers q, arangud and directed for spinkling the paste-hued
surfaces of the mold-sections when the latter are permitted to be swung open,
Figue particularly The conduit, has the valve, which is sufficiently indicated
at s, and to the operating handle or lever thecof is secured the cord which

page_text: runs therefrom upwardly around the sheaves, to a connection with the aforesaid
dog g
The bracket F, supports the hollow atm Q, which has the two chambers or
pssages t and u, therein,-oue leading from the soure of an supply and the other
minating in the downwardly directed opening 2, within which is the vertically
movable tube ³, having at its lower end the downwardly faing receiving socket
for the upper end of the blow-pipe K The passages and u, are sepuated by the
web wall 2, having the opening 13, which forms communication between said
passages. The opening t³, is normally closed by the valve to which is provided
the spung v 2.
The intermediately pivoted level w, has one end in bearing engagement against
the upper end of the aforesaid vertically movable tube ³, and its other aim iests
upo the top of the valve-stem
When the blow-pape has its shouldered central portion 20, moved into the
recess, at the forward edge of the shelf which it engages for its support, it exerts
a cam-like action against the inclined end of the dog cau-mg the latter to move
eudwise which it is permitted to do by reason of the slot within which the pivot,
seen ate, protrudes. Thus imparts, against the resistance of the sping m 2, a
swinging movement to the rock-shaft aim 1, a locking movement to the said shalt,
a swinging movement to the rock-shaft mm 12, and an endwise drawing of the vertical
tip-bai, which releases the clutch-dog to the action of its spring o³, whereby
the clutch is thrown into engagement with the constantly rotating wheel M, which
is loose on the shaft C
Thus clutch is of a well known kind and is illustrated in Figures 7 to 10,
inclusive, and, having made one revolution, the clutching dog, by impingement
against the beveled side of the tip-bar (which, after having been raised to pet mit
the clutch to start, promptly snaps back by reason of the spring to its original
position in the path of revolution of the clutch-log). torces the dog wardly
within the recess therefor and out of clutch whereby further rotary motion is
atrested until the next operation.
The above mentioned clutch, per se, constitutes no part of the present
is ention
Preparatory to starting the machine, the cam-wheel which is on the inter-
mittently rotating shaft C, stands with the lowest part of the cam upward and in
contact with the cam-1oll ou the vertically movable bar h, of the mold-yoke
which latter therefore is dropped to its lowest position, by giavity, the molds
having automatically opened, all as seen in Figures 3 and 4, but as the cam
begins its movement it effects the raising of the yoke and the maintenance
thereof in its raised position until the am has completed its circuit, whereupon
the yoke descends and the mold-sections open by reason of the gravity effect of
the weighted wings thereof.
The mold-supporting shaft, denying its rotary movement concurrently with the
evation of the mold-yake through the aforementioned geating d, d, f, 7, has its
speed multiplied so that the mold has several rotations, around the stationary
low-pipe, Letore being permitted to open. As the yoke is next permitted to
descend at the tune when the machine stops, whereby the mold-sections are
picad open with then inner surfaces upward, and whereupon the blow-pipe may
be removed, there will be, concient with the removal of the blow-pipe and
outward swinging of the dog, through the cord and lever connection with the
valves, in the conduit leading from the liquid resei von to the spunklers, an
opening of sand valve resulting in the spinkling of the exposed piste-covered
surfaces of the mold sections.
Of course it is to be understood that when the blow-pipe is brought to its
position in the flaring socket u', by forcing the endwise movable tube, upward,
which it does as it seats itself, it swings the lever, to open the valve to the
communication with the an-supplying conduit ou reset von, the opened com-
munication continuing until the removal of the blow-pipe,

page_text: Having now particularly described and ascertamed the nature of our said inven-
tion and what manner the same is to be performed, we declare that what we
claim 18-
1. In a glass blowing machine, the combination with the 1otatable mold-support
and means for 1otating it, of the mold-sections pivotally mounted on the mold-
support to turn in unison therewith, the movable yoke, II, loosely embracing the
mold sections and independently of which said mold-sections icvolve without
obsuuction by the yoke, and incans for imparting the reciprocatory movements to
said yoke, substantially as descubed
2 In a glass blowing machine, the combination with a mold-support which is
1otatable in a fixed plane and having pivoted thereto the mold-sections b, b, which
are provided with the outwardly extending weight wings, and which tuin in
uuson with said support, of the yoke H, pivoted to the frame of the machine and
having its extremity loosely embracing said sections and independently of which
said mold-sections revolve without obstruction by the yoke, and a mechanism for
imparting the reciprocatory movements to said yoke for operating, by its impinge-
ment thereupon, the mold-sections, substantially as described
3 In a glass-blowing machine, the combination with the mold-support having
the mold-sectious pivoted thereon, a removable blow-pipe and a blow-pipe support,
of the yoke for closing said sections, the liquid reservoir and a condutt, having one
oi mote sprinklers, connected with said reset von which are directed towards the
positions of the opened mold-sections, a valve in said conduit, mech unism for
operating the yoke to close the mold-sections and a mechanism for operating
the sprinkler valves having a part thereof adjacent the blow-pipe support, and
adapted on the removal of the blow-pipe to have, by said pipe, valve-operating
movements imparted thereto, substantially as described
4. In a glass-blowing machine, the combination with the rotary mold-support
and the mold-sections pivotally mounted thereou, of the yoke II, the shaft B,
having the cam J, thereon and having diving connections with the rotary mold-
support, the bai k, having an engagement with the cam and engaging the yoke,
and menus for intermittently rotating said shaft B, substantially as and for the
purposes set forth.
5 In a glass-blowing machine, the combination with the support and the mold-
sections pivoted thereon, of the yoke coaeting with the said sections to close them
and to permit them to open, the 10tai cam J, and the movable bai h, actuated
by said cain, and in turn imparting a movement to the yoke, substantially as
described.
6 In a glass-blowing machine, the combination with the support and the mold-
sections pivoted thereon, of the yoke coating with said sections to close them and
having the screw abutment a, adjustably mounted thereon, the cam J, and bath,
having the roller 2, adapted to coact with said abutment, substantially as
described.
7. In a glass-blowing machine, the combination with the mold-support, mold-
sections pivoted thereon, the movable yoke H, coacting therewith, the blow-pipe
support, and an an-conduit, of the removable blow-pipe adapted to be placed in
connection with the air-conduit and to be sustained by such support with its end
proximity to the mold, mechanism for intermittently operating said yoke, and
controlling devices therefor having connections which are adapted to be operated
by the blow-pipe as the same is brought to its operative position in the machine,
substantially as described.
8. In a glass-blowing machine, the combination with the bracket or support E,
having the recess, the necked on shouldered blow-pipe adapted for engagement in
said recess and the rotatable mold support having the sectional separable mold
mounted thereon, of a power transmitting shaft B,-which mediately imparts the
lotation to the said support for the sectional mold, a diving wheel for, and loose
upon, said shaft B, and a clutch whereby the driving wheel may be thrown into

page_text: connection with a wheel which is fast on said shaft, the movable clutch-iestraining
member, a dog mounted adjacent said recess and actuated by the blow-pipe when
placed in the said necess, and connections between said dog and said clutch-
restraining member, substantially as and for the purposes set forth
9. In a glass-blowing machine, the combination with the recessed support E, and
the clutch-iestrannng bar m, having the sping m 2, of the dog, having the pin and
slot connection on the said support, the rock-shaft 1, having the aims 1, 12, one of
which is engaged by said dog and the other connected to said bai m, substantially
as descubed
10. In a glass-blowing machine, the combination with a support or holder for a
removable blow-pipe, the removable blow-pipe and the separable mold-sections, ol
a reservoir and a conduit having a spinkle and a valve, the dog adapted to be
tripped on the removal from the machine of the blow-pipe and connected to the
said valve, substantially as described.
11 In a glass-blowing machine, the combination with an air-conduit having a
movable tubular continuation which is provided at its cud with a sochet for
receiving the end of a blow-pipe, of a valve for normally closing the said conduit.
against the passages of a therethrough, and a leve engaged by saul movable
tube, and engaging the valve, substantially as described
12. In a glass-blowing machine in combination, a support for a removable blow-
pipe, an an-supplying apparatus, a sectional mold which is adapted to be closed
about the gathering end of the blon-pipe and to be opened, means for automatically
effecting the closing and afterwards the opening of the mold-sections, and means
for imparting to them, while they are closed, rotary movements about the axis of
the blow-pipe, substantially as described.
13. In a glass-blowing machine, in combination, a support for a removable blow-
pipe, an air-supplying apparatus, a sectional mold which is adapted to be closed
about the gathering end of the blow-pipe and to be opened, means for automatically
effecting the closing and afterwards the opening of the mold--cctions, means for
imparting to them, while they are closed, rotary movements about the axis of the
blow-pipe, and means to causing a sprinkling of the mold sections while they alo
opened leaving then paste-lined surfaces exposed, substantially as described.
Dated this 25th day of June 1895.
MICHAEL JOSEPH OWENS.
EDWARD DRUMMOND LIBBEY.
Haseltine, Lake & Co,
45 Southampton Buildings, London, W.C., Agents for the Applicants