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Патент USA US2101213

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Dec. 7, 1937.
J, DlcHTER
2,101,213
MACHINE FOR PRODUCING GLASS VESSELS FROM TUBING '
Filed Feb. 16, 1933
I‘
2 Sheets-Sheet 1
"r5911
eld'ior:
JFIKob D;ch'te~r
Dec.. 7, 1937.
J. DICHTER
2,101,213
macrmm FOR PRODUCING GLASS VESSELS FROM TUBING
Filed Feb. 16, 1955 ~
2 Sheets-Sheet 2
3- w
,Bwen?or:
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Piatented Dec. 7, 1&3?
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momma Foa raonncrnc crass VESSELS
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.
Jakob Dichter, Berlin, Germany
' Application February 16, 1933, Serial No. 657,084
In Germany May 2, I932
, 7 19 _Claims. ' (oi. ia-r)
This invention relates to machines for produc
ing glass vessels from tubing, and more particu—
larly to machines in which a section of tubing is
heated until-soft and is then blown to shape in
5
a ,mold.
_
.
'
'
'
The shaping o the glass vessels from tubes can
also be effected at the ends of said tubes,’ but
the present invention 'is concerned with ma
chines in which a length of tubing is gripped at
10 each end, the middle portion being heated until
soft-and then being drawn out and blown to the
required shape. When this processv in its simple
iliary devices are involved and the requisite ma
nipulations for the shaping are performed by
the operator. Further, these arrangements have
for their subject no method, nor have they as
basis the carrying out of shapings with diame- 5
terssrnaller than the original tube.
The machine shown and herein described con
stitutes only an embodiment by way of example,
and may equally wellpbe horizontally arranged. '
It is also in no way limited to operation on long 10
‘glass tubes only but measured tube sections can
also be operated upon.
>
One form of machine according to the inven
form is employed, great di?iculty is experienced ' tion is illustrated in the accompanying drawings,
_ in producing a uniform product as the thickness
15 and diameter of the tubing always vary however
carefully thetubing is selected, and any'faults
of thisklnd are greatly exaggerated in the ?n
- ished product.
9
,
It is an object, therefore, of the present inven
tion to provide an improved-form of machine in
which this di?iculty is overcome. In a machine
for producing glass vessels from glass tubes in
‘which tubes to be workedlare held and rotated
by oppositely disposed holding devices, and in
in which:
Figure l is a side elevation;
Figure 2 is a plan corresponding to Figure 1;
‘Figure 3 is a side ‘elevation of the blowing de- '
vice;
_
"
,
Figure 4 is a front elevation corresponding to 20
Figure 3; ,
‘
Figure 5 is aside elevation showing the use of
the mold in blowing the round base;
'
Figure 6 shows diagrammatically the sequence
of operations for preparing ampoules with round 25
25 whichthe shaping is eifected at a point between
the holding devices,‘ according to the present in
vention a mold is provided at said point, the con
stricted part of the glass being blown out until
it contacts with the mold, which latter is dis-v
30 posed between the holding devices. The machine
according to the invention may be readily adapt
.ed for shaping, various kinds of glass vessels, in
bases,
-
,
-
Figure '7 illustrates diagrammatically the proc
esses employed in producing a screw-neck ves
' Se], and
Figure 8 is an enlarged partial view of the con- 3‘
stricting device.
,
The machine shown is one having eight pairs
of holding devices arranged in circular forma
eluding ampoules for containing chemical and tionabout a vertical central axis, said holding
, other preparations, such ampoules being pro
devices being advanced step by step and pre- 35
35‘ vided with a constricted neck portion which is , sented to the individual working stages. Ob
arranged to be readily and cleanly broken off for viously the same working arrangement could be
obtaining access 15017118 contents of the ampoule. stationary withoutthe holding devices rotating
In order to more easily provide the constricted » about the central axis, the lower holding device
sections .in the mold, devices .are provided which in this case being merely raised and lowered by 40
positively press in or remove the shoulders be
the cam ring.
'
D
4 O cause these mostly extend conically duringthe
In the drawings, ‘the vertical central shaft 3
drawing. It is immaterial whether this removal is secured in the bearing flange 2 on the base
or the shoulder is e?ected before or after the :plate I._ The spaced discs 4, 4’ are‘ rigidly con’
stem is drawn.
by cross-members 5, 5' so that they can
,45 Further a device- is provided for introducing nected
be
rotated
about the shaft 3. The main shaft
_ compressed air for blowing out the constriction
in the mold or for providing the closed end with 6 derives its drive from the driving shaft, so that
a. spherical base. In order .to be able to prepare the feed disc ‘I and locking disc 8 are rotated
this hemispherical base also as uniformly as by the bevel gears 9, 9'. On each rotation of 50
possible, a hemispherical mold is used in which the shaft 6 and the discs ‘I and 8, the disc l0
and the discs 5, 4’ are moved through an angle
01 O the soft closed end is blown out. ' _
Arrangements have already been disclosed in of 45°. The bearings It for the clamping chucks
which'glass tubes are clamped at both ends in I! are secured to the disc t’. The lower clamp
holding devices and in’ which the molding section ing chucks it are mounted in sliding bearings 55
55 lies between the holding devices, but only aux
' a
7
2,101,213
M’ which can beraised and lowered on‘ two par;
working period ' the glass tube is fed a de?nite
allel guide bars 94 secured to the discs ll, 4'.
The clamping chucks i2, i3 derive their drive
length.
The air pipe 5! is co nected with an upper
from the main shaft '6 by way of the gear wheels
valve plate SBdistributin
blast heads the
air which passes through totheall supply
pipe 59,
l5, l6, l7, l8, IS. The gear wheel i6 is displace
ably arranged on the shaft 2d’ provided with a
equipped with a control valve, and over the
lower valve plate 60. In addition, the instant
of blowing in air is determined by this arrange
ment.
.
The mode of operation of the machine for
This interruption is eifected in that
the lever 22 releases the connection of the claw ‘
10
manufacturing ampoules with
coupling 2! by way of the lever 23 which is con
nected with a cam by means of a linkage, so that
the shaft 20 stands still.
‘
.
The lower chucks i3 slide: on the cam track
' 25 by means of bolts 28 provided with rollers at
their ends, and the cam track is shaped in ac
// 20 cordance with the drawing motion in that de?
nite parts thereof fall ‘or rise, or else are raised
and‘ lowered.
-
1
20
In Figure 1, position I, two constricting levers
26, 26' are between the chucks and execute a
motion about the shaft 2'? towards the already
25 softened glass tube 28 and remove this‘ appro
priately at the shoulders. This motion ‘is effected by the cam 28 and levers 3d, 30'. The
'
25
depth of constriction is controlled by the stop
screws 3! and Bi’;
‘2.0
.
.
K Obviously this arrangement may be of such
con?guration that the heated section is con
30
stricted over its entire breadth or else that, in
addition to'the two shoulders, further constric
'35
tions contained in the mold are preformed‘.
This preforming operation may also occur
after drawing the stem.
-
In position II, Figure 1, is arranged the mold
82.consisting of two mold jaws embracing the
40
section to be shaped. This mold is arranged on
' point is desirable.
After the mold has been closed, the air valve
of the blast device is opened and the stem blown
out until it is. applied against the wall of the
> mold.
In accordance with the con?guration of
ing and closing of the mold jaws is eifected by , the mold, the glass tube may be kept rotating 40
way of the cams 34, the linkage 35, the bevel during blowing or else rotation may be inter
gear-s38, 36', the gear wheel 31 which moves rupted by meansmf the clutch provided for this
the two toothed rods 88, 38', to which the mold purpose. A mark for the point at which they
45 jaws are secured, in opposite directions. The
ampoule is subsequently to be opened is included
mold carrier as is displaceable in the slide 46. in the ‘mold, and is ‘molded simultaneously for
the shaft 33 for vertical adjustment. The open
horizontally with respect to the glass tube by
instance in the form of a widened or constricted
means or the rack bar “, the ‘gear wheel 42,'the _ portion.
bevel gears 43, 43', the linkage 44 and cam, 45.1
A point of separation intended for the opening
As shown in Figures 3 and ‘4 a lower carrying » may however be eifected after the blowing e. g.
by pressing in a. small depression by means of
ring 66 to whichpeight part bearings 41 are se
cured, is provided on the upper disc. In these ‘ a device such as shown in Figure 1.‘ It is advan
bearings are supported guide'bars ,48, 48' which
at the upper end are connected with the ring 49.
55 The blast head carrier 50, the upper end of which
tageous, after the heating which preferably pre
cedes the pressing operation, to blow air from
the outside against the depressed portion simul
is connected by a rubber hose to the airsupplypipe . taneously with the molding of the depression or
5| and the lower end of which is equipped with directly thereafter, because in this way the sur
a blast pipe52 which turns in _'the blast head \ face of the glass is hardened at this point which
carrier 50, slides on the guide bars 48, 48'. A favours the ready breaking-off of the stem with
'
short length of rubber hose 53' connects the blast out splintering.In the working position f the upper end of the
pipe 52 with the glass tube at the lower end of
stem is separated from the glass tube and the
_
the glass tube
during the heating is effected by the clamping glass tube is simultaneously closed in that a
chuck a!‘ d the blast pipe is carriedalong by the burner heats the glass at the point of separation
65 glass tube duringrotation. _ '
and the lower chucks move downwardly.‘ While
The blast head carrier 50 is connected to a the complete ampoule in‘the' lower chuck slides 65
cord 56 which passes over aiower pulley 55 and into a collecting container, 3. hemi-spherical mold
an upper “pulley 55'. At the lower end, the-lower is brought to bear against the closed end of the
tube in the working , position g and the base is
pulley 55 has a stub shaft 56 covered with rub
blown out by blowing in‘ air which is supplied in
the’sam'e' manner as in position e.‘
If glass vessels with ?at bottoms are to be 70
produced then the blowing in of air is omitted
e
and the base is merely refused.
'
Obviously the round bottom may be produced
without the use of a mold.
' '
3,
archers
means for heating the glass tube intermediate
After blowing" thebottom in'the, mold the
its ends, means for forming a pair of constric
tions in the heated portion of the glass tube,
-. glass tube is advanced by a corresponding length
and the working process recommences.
,
said constrictions being spaced apart longi
'
On the advance of the glasstube :the base
tudinally of the glass tube, and means for re
mold, which in the case of ' a ?at bottom may
‘consist merely of a flat plate, descends by .the
length of the feed stroke whereby a smooth slid- j
ing forward of the glass tube -is attained, on
which bears the weight of .the blast device con-‘
nect'ed with the upper end of the tube.
’
ducing the cross sectional area of the glass tube
between the said constrictions.
'5.‘In a machine for producing glass vessels
from glass tubes, a pair‘ of axially aligned hold 10
ing devices .for a, glass tube, means for heating
thetube between the holding devices, means for
Obviously two points of a tube may be heated -formingfa pair of constrictions in the tube be
and molded simultaneously and‘ the‘ stem pro
tween the holding devices, said constrictions be- '_
duced may be fused o? in the middle instead ing spaced apart longitudinally of the tube, and
means for‘ moving said holding devices relative
of at the end.
'
'
,
The glass ‘body may bevcut off in the molding to each other to reduce the cross sectional area
15
position and the ‘cut end sealed during the blow
of the tube between the constrictions. '
ing-in or air,
-
'
Y
6. In a machine vfor producing glass vessels '
from glass tubes, means. for heating a glass tube 20
ends, a pair of tools adapted
-
The tube may also be closed at the upper end
' and air blown in from the lower open end.
intermediate its
for engagement with the heated portion of the
While‘ the mode of operation of the present
20
machine has been shown primarily .inits appli
tube to form a pair of constrictions. in the tube,
cation to glass vessels in which a portion of the
said constrictions being spaced apart longitudir
tube'isconstricted, it may'of ,course, also be
nally of the tube, and means for reducing the
used for shaping glass vessels of larger diameter '
the tube‘ between the said
. cross'se'ctional area of
than the original tube.
25
Equally one, end of the tube onlymay be. pre
constrictions.
‘
~ I
v
.,
I
_ 7. In a machine for producing glass vessels
viously constricted for introduction ‘into ,the ' from glass tubes, a pair. of- axially aligned hold
mold and solely this constricted section blown ing devices for a glass‘ tube, means for heating
out in a mo1d,_,e. g. if the separation of the am-'
the glass tube between the holding devices‘, a
pair of constricting levers, means for moving said
constricting levers into engagement with the
chuck as shownlin Figure 6 f. ~
.
heated portion 'of the glass tube to form a pair
Iwish it to be understood that I do ‘not desire" of constrictions in the tube, said constrictions be-_
poule body occurs beneath the lower clamping
chuck-instead of beneath the upper clamping
so
to be limited to the exact details of construction ,
and described ‘for obvious modifications
as shown
will occur to a person skilled in the-art.
What I claim is:
, 1. A machine for producing glass vessels from
'
glass'tubes
ing spaced apart longitudinally of the glass tube,
and means for relatively moving said holding
devices away from eac, other to reduce the cross
sectional area of the glass tube between the said
40
comprising in combination, pairs of ,constrictions.
8. In a machine ‘for producing glass vessels
axially superposed tube holders arranged in a_'
.40~circle, means ‘for rotating said holders about from a length of glass tubing, a pair of holders
adapted to hold the length of glass tubing, means
their axes‘, means for moving'said pairs of hold
providing for movement of ‘the glass tubing
'ers about their common centre, concentrically
through one of said holders, a ‘blow head adapt
distributed means for, heating the glass vtubes
between‘ the holders of '. each pair, means for
forming spaced constrictions in'v each tube be
ed for engagement with the‘ free open end‘ of
the length of glass tubing, means providing for
movement of, the blow head with the length of
glass tubing upon movement of the latter through
- tween ‘the holders'and means for blowing out and
-
_ for molding each tube between the constrictions - one of the holders, and means for braking the
.
movement of the blow 'head.
' 2, A machine for producing glass vessels from
comprising in combination, pairs of
thereof.
.
'
‘
'
'
~
9. In a machine for'producing glass vessels
from a length of glass tubing, a‘ pair ‘of axially
50 aglass'tubes
_ axially superposed tube holders arranged’ in a aligned superposedtube holders adapted to hold
‘ circle, means for rotating said holders about their _ a length of glass tubing, means for heating the
-axes, means for moving said pairs of holders
about their common centre, concentrically dis
glass tubing between the said holders, means for.
blowing out and for shaping the heated part of
tween the holders of each pair and .means for
the tube between the holders, a blowing head in v
line with the holders, means for varying the ver
55 tributed means vfor heating the glass. tubes be
constricting, for blowing out and for» molding‘ tical position of, the blowing head, and means
60
3.v A machinefor producing glass vessels from. for braking the vertical movement of the blow
glass tubes comprising in combination, pairs of
10. In a machine ior producing glass vessels
"the heated part. of a tube vbet'vveei'i the holders.‘
"60
ing
head.~
.
'
‘
-
-
‘
axially superposed tube holders arranged in a from a length of glass tubing, a pair-of super
circle, means ‘for rotating‘ said .holders about
axially aligned tube holders adapted to 65
their axes, means for moving said pairs or hold > i posed
hold the length» of glass tubing, means for heat
ers about their~ common centre, concentrically‘
65 distributed means for heating the glass‘ tubes ing the length, of glass tubing between the hold
‘ers, a blower head engageable with one end off
between the holders of each pair, means for blow
ing out and for molding the heated part of a the length of glass tubing for supplying an un
tube between the holders,v a blowing head; in der pressure to the interior of the glass tubing to 70
line with a pair’ of holders, means" for varying - shape the heated portion thereof, means pro-v
viding for movement of the length Oi glass tub
the vertical position of- said blower head and au
ing through the ‘upperot the‘tube holders, means‘
tomatically active means for braking the ver
-
tical movement of said head.
~,
~
_
providing for vertical movement of the blower
4.'In a machine for producing glass vessels head upon movement of the length ‘of glass tub
from glass tubes, means for holding a glass tube, I
76
4
I
2,101,213
ing, and friction means! for braking the down
Ward movement of the blower head.
11, In a machine for producing glass vessels
from glass tubes, a pair of holders adapted to
hold a glass tube, means for heating the glass
tube between the holders, a mold adapted to en
close the heated portion of the glass tube and
meansior supplying a gas under pressure to the
interior of the glass tube while the heated por
tion thereof'is enclosed by the mold to cause the
from a length of glass tubing, a pair of holders
adapted to hold the length of glass tubing, means
for heating the length of glass tubing between
the holders, means for blowing out and shaping
the heated portion of the length of glass tubing
between the holders, means for heating the length 5
of glass tubing between the shaped portion there
of and the remainder of the length of glass tubing
to sever the shaped portion of the glass tubing
. from the remainder
thereof and to seal the end 10
a mold engageable ‘
12. In a machine for producing glass vessels‘, with the sealed end of the length of glass tubing,
heated portion of the glass tube to conform to the
shape of the mold.
~
-
L
of the length of glass tubing,
from glass tubes, a pair of holders adapted to ' and means for admitting air under pressure to
15 hold a glass tube, means for heating the glass
the interior of the length of glass tubing to blow
tube between the holders, means provgilng for
movement of the holders away from eac other
to reduce the cross sectional area of the heated
portion of the tube, a mold adapted to enclose
2.0 the heated constricted portion oi the glass tube,
and means for supplying a gas under pressure to
the interior of the glass tube to blow the heated
constricted portion thereof into engagement with
the mold.
25.
4
'
13. In a machine for producing glass vessels
from glass tubes, a pair of holders adapted to
hold a glass tube, means for heating the glass
tube between the holders, a pair of tools adapted
to be moved into engagement with the heated por
30 tion ofv the glass tube to form a pair of constric
tions therein, the constrictions being spaced apart
longitudinally of the glass tube, means for reduc
the sealed end thereof into engagement with the 15
'
>
said mold.
16. ‘In a machine for producing glass vessels
from glass tubes, means for holding a glass tube,
means for heatingthe glass tube intermediate its
ends, and means for constricting, for blowing out 20
and for molding the heated part of the tube.
17. In a machine for producing glass vessels Y
from glass tubes, ‘means for holding a glass tube,
means for heating the glass tube intermediate its
ends, means for forming a pair of constrictions
in the heated portion of the glass tube, said con 25
strictions being spaced apart longitudinally of
the glass tube, andrmeans for shaping the glass
tube between the said constrictions’.
18. .In a machine for producing glass vessels 30
from glass tubes, means for holding a glass tube,
means for moving’ said holding means along a
ing the cross sectional area of the glass tube be
tween the constrictions, a mold adapted to en " de?nite path, means for heating the glass tube
intermediate its ends, a pair of tools mounted for
close the portion of the glass tube which is re
movement toward and away from the glass tube
'duced in cross sectional area, and means for ad
mitting a gas under pressure to the interior of at one point in its path of movement, said tools as
the glass tube to blow the reduced portion thereof being adapted to form spaced apart constrictions
in the glass tube, and means for moving said tools
into engagement with the mold.
40
14. In a machine for producing glass vessels‘ into operative engagement with the glass tube
from a length of glass tubing, a pair of holders when the glass tube reaches a. position adjacent
‘
adapted to hold the length of glass tubing, means the said tools.
for heating the length of glass tubing between , 19. In a machine for producing glass vessels
the holders, means for shaping the heated portion from‘ glass tubes, means for holding a glass tube,
45 of the length of glass tubing, means'for severing means for moving said holding means along a
the shaped portion of the length of glass tubing de?nite path, a blow head adapted ‘for engage
from the remainder of the length of glass tubing ment with the free open end of the glass tube at 45
and for sealing the end of the length of glass tub
one point in the path of movement of the glass
ing, a mold movable into engagement with the tube, and means controlled by the movement of
50 sealed end of the length of ‘glass tubing, and
the holding means for controlling the engage
means for shaping the sealed end of the length of ‘ment-of the blow head with .the length of glass
50
glass tubing in the said mold.
tubing.
'
,
15. In a machine for producing glass vessels
JAKOB DICI-I'IER.
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