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Патент USA US2136421

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Nov, 15, 193
2,136,421‘
A. c. EVERETT
CONTAINER FILLING MACHINE
Filed Nov. 15, 1933
4 Sheets-Sheet l
INVENTOR
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ATTORNEY
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Nav. 315, 1938.
2,136,421
A. c. EVERETT
CONTAINER FILLING MACHINE
Filed NOV. 15, 71935,
4 Sheets-Sheet '2
INVENTOR _
BY dp7£q4 (‘fawwm
M @tmlu'u
ATTORNEY
Nov. 15, 193.
A, c, EVERETT
‘
2.136,4Z1
CONTAINER FILLING MACHINE
Filed‘Nov. 15, 1935
4 Sheets-Sheet 3
15¢
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ATTORNEY
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New, 15, 1%.,
‘ A. c. EVERETT‘
2,135,421
'GONTAINER FILLING MAGHINE
Filed Nov. 15,1955-
,
4 Sheets-Sheet 4
£135
ids-Iii‘
L.
$7
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INVENTOR
BYULM QAMM
'
ATTORNEY
2,136,421
Patented Nov. 15, 1938
UNITED STATES ‘PATENT, OFFICE
_
2,130,421
comma FILLING mom
Arthur Clarence Everett, Boston, Mass., assignor
to Pneumatic .Scale Corporation, Limited,
Quincy, Mass., a corporation oi’ Massachu
setts
'
-
. Application November '15, 1933, Serial No. 898,090
6 Claims. (01. 226-116)
‘This invention relates to a container ?lling' continuously rotating spider 88 which is mounted
machine, and particularly to a rotary container - on a shaft 46. The lower end of this shaft is
rotatably mounted in bearings 4|, 42 formed in
?lling machine.
'
‘
the machine frame and is driven by a gear 44
I’
One object of the invention is to provide a
5 novel and improved container ?lling machine by which is fast thereon. The transfer-spider 38
whichjthe containers may be. ?lled in a rapid, is provided with a seriesvof teeth 48, the inside
portions 48 being formed to ?tythe shape of the
economical, and highly e?icient manner.
further and more speci?c object of the in-‘ bottle, while the back portions 49 are made of
vention, is to provide a novel container ?lling such curved shape that the successive bottles
10' me," hinezin__'which provision is made for prevent
iw' ripping of‘ the liquid from the ?lling nozzles.
Y
v f'still further object'of the invention is to pro
vid afnovel and improved container ?lling ma
“ c} neg'l'operating upon the vacuum principle and
115‘ in "hich provision‘ is made for preventing drip
n of ‘theli‘quidj from the ?lling-nozzles.
nthe‘sefjobiects in view and such others as
__ einafterv appear, the invention consists
‘, ‘machine and in the various struc
pg
‘_
“pgements and combinations of parts
here nafter described and particularly de?ned in
the?clairnsqat‘the vend of this speci?cation.
iiln?tlie drawings-illustrating the preferred em
'
'
of theinvention, Fig. 1 is a front ele
7 ‘ct ry‘?liing machine embodying the
'
_s a plan of the machine shown
f; is a cross-section taken on the
8-
4
;
ken; rithe line 4-4 of Fig. 2; Fig. 5 is a
ti
80
a'l detail ‘of one of the ?lling nozzles and
"
partsrFig. 6 is an elevation partly in
ustratingthe control valve- in a dif
are caused to move with an accelerating motion 10
in the direction of travel of the spider teeth.
Guide members 58, 52 serve to guide the bottles
on the conveyor I! so that as they are delivered
to the spider teeth 46 the movement of the bottle
is not stopped entirely and, consequently, the
bottle doesn'ot have to be picked up by the front
of ‘the teeth 48 from a dead stop. The teeth of
the spider are so formed that the diameter of
the center line of travel of the bottles around
the spider is less than the pitch diameter of the 20
spider driving gear 44. This gives less lineal
speed to the bottle than the lineal speed which it
would have if the diameter was the same as the
pitch diameter of the gear 44.
The gear .44
meshes with and is driven by a gear. 60 which 25
forms the driving gear for the rotary bottle ?lling
device.
1
During the rotary movement of the bottle sup
porting spider or platform 36, the bottles are
engaged by carriers 82 mounted on the platform 80
36 and positioned in alignment with ?lling heads
64. The diameter of a circle passing through
the center of the bottles carried on the ?lling
machineis greater than the pitch diameter of
- the gear 60 and, consequently, imparts a slightly 35
higher. lineal speed to the bottle than it would
have if positioned so thatthe diameter of a circle
through the bottles was the same as the pitch
diameter of the gear 60.
n a source
bottles are
7
y tank I0,
4!? and proyisionis made 0‘
?tiih?t’ 0:. was‘?
ottles by a
is
_.
‘ vr; during
0‘ tin usmovementn'ffth tort] ?llin‘?ghmech
"
‘
"
“
"
"
‘s’up‘ported
It will be observed that while the teeth 46 of 40
the transfer spider 38 operate in timed relation
with the carriers 62, the lineal speed of the in
dividual bottles is slightly less than that of the
carriers 62 when they are delivered thereto and,
consequently, the carriers move slightly faster 45
than the teeth 46 and carry the bottles out of
contact with the inside portions‘ of the teeth 48
and allow the points of the teeth 46 to continue
their rotation without interfering with an indi
vidual bottle which has just been delivered to .
V
'
vacuum? iprihbipl'
"was 'eriei'n‘ishowmith'eéeinptw "ttl
~
are trans
fefti'edaifromi thes'incomingi éonveyoratlil to the
6'6? ?latforms: u;.;:~;oe_tnei rotaliysiiiilingpiidevice by a
one of the carriers 62 and, hence, the proper
alignment of the bottle is not disturbed and no
jamming or breakage occurs.
' Provision is made for rotating the rotary car
rier upon which the bottles are supported from a
2
2,186,421
motor belted to a shaft 8I and the latter is pro
said filling heads being in alignment with its
vided with a worm 83 cooperating with a worm cooperating elevating platform 38 by which an
gear 88 on a shaft 81 mounted in bearings in the - individual bottle is raised into operative engage
base of the machine. The bevel gear 88 formed ment with the ?lling nozzle I48 depending from
as a part of a clutch housing 8i is normally and carried by the ?lling head 84. As illustrated
arranged free on the shaft 81 until the clutch in Fig. 4, the ?lling heads 84 are detachably
housing 8| is engaged by the second member 83 mounted upon a central rotatable hollow mem
of the clutch _when a manually operated clutch
lever 88 is thrown. In this manner, the bevel
10 gear 88 is driven from the shaft 8'! through the
clutch and operates to drive a bevel gear 81. The
bevel gear 81 is provided with a gear 89 attached
thereto which is free to turn on a vertical stud ‘II
and meshes with an idler gear ‘I3 cooperating
15 with the gear 80 attached to and arranged to
drive the rotatable bottle supporting. spider in
which the carrier members are mounted.
The
gear 44 for rotating the spider 38 is arranged to
mesh with and is driven by the gear 80.
Referring now to Fig. 4, the bottles are ?lled
20
with the liquid contained in a supply tank I0 by
the illustrated mechanism operating upon the
vacuum principle and in which provision is made
for evacuating the bottles and causing the liquid
25 to be drawn up from the supply tank by {the
vacuum in the bottle. As illlustrated in Fig. 4,
a circular bearing member ‘I2 is fastened to the
top of the base ‘I4 and comprises an outer cam
ring ‘I8 having a cam surface 78 formed on the
30 top edge thereof, and an inner supporting sleeve
80 which'acts as a bearing for a rotating sleeve
85
40
45
50
82 rotatably mounted therein. The gear 80 is
fast to the bottom of the sleeve 82 and causes it
to rotate. An end disc 88 which is supported by
the column 88 formed in the base ‘I4 is also fas~
tened to the bottom of the sleeve 82 ‘and forms a
vertical supporting member for the sleeve. An
anti-friction bearing 90 located between the disc
88 and the column 88 facilitates the rotation of
the sleeve 82. A cylindrical casing 92 is attached
to a circular ?ange 84 formed on the sleeve 82
and supports a plurality of bottle elevating de
vices, each comprising a platform 38 mounted on
the end of a vertical rod 98 extending through a
bearing in the bracket I00 which is attached to
the top of the cylindrical casing 92. A roll sup
porting sleeve I02 free to slide on the rod 08 is
provided with a roller I03 rotatably attached
thereto which cooperates with the cam surface
18 above described. The sleeve I02 yieldingly
raises the platform 38 through the spring I04
which freely encircles the rod 88 and cooperates
with the underside of a collar I08 fast on the rod
88. A guide pin I08 fastened to the platform 38
and guided in a hole I I0 in the bracket I00 serves
to keep the platform 38 in proper alignment.
ber I48 which is subdivided to form two hori
zontally disposed cylindrical chambers I80, I82,
and one chamber I82 is connected through the 10
piping I 84 to the supply tank I0 and through
which the liquid is drawn by the vacuum created ~
within the bottle and caused to how down
through the nozzle I48 to fill the same. Pro
vision is made for creating a vacuum or exhaust
a valve 200 is connected by a pipe 202 to a vacuum
pump, not shown, which may comprise any of the
well known types. The valve 200 is adapted to
be operated by the worm 204 on the end of a shaft
51 through the worm wheel 208- fast on the valve
shaft 208. The valve 200 is connected to vacuum
chambers 2I0, 2“ by pipes 2I2, 2I3 and the
bottoms of said vacuum chambers 2I0, 2“ are
50'
provided with drain pipes‘2l4, 2I8. The drain
pipes 2 I4, 2 I5 extend into the supply tank I0 and
are provided with check valves 2l8, 2 I ‘I which will
allow the surplus liquid drawn from the top of
the bottles, as will be described, to be discharged
A sleeve II2 mounted in the sleeve 82 is ar
into the supply tank when there is no vaccum in
ranged to be adjusted for varying heights of
the chambers 2I0, 2| I. The valve 200 is adapted.
to be operated to alternately connect the_cham
bottles by means of an adjusting screw II4, the
lower end of which is provided with screw threads
cooperating with a threaded nut II8 fast in the
end disc 88. The upper end of the adjusting
screw H4 is mounted in a bearing formed in a
bracket I20 and is provided with a bevel gear I22
65 fast thereon which cooperates with the bevel gear
I24 fast on the end of a shaft I28 mounted in a
bearing I28 held in the sleeve I I2. The shaft I28
is provided with a pin I30 to which a wrench may
be applied to turn the shafts I28 and H4 and
70 vertically adjust the sleeve II2. A clamping
screw I32 is provided in the top of the sleeve 82
to normally hold the sleeve H2 in position after
an adjustment has been made.
15
ing the air from within the bottles and for in
suring the ?lling of the bottles to uniform level,
and, as herein shown, each ?lling nozzle indi
cated generally at I48 has mounted thereon an
inner tube I80. connected to a liquid chamber I82
in ‘the filling head 84 and comprises the ?lling
nozzle through which liquid is introduced into
bottle. The annular passage I84 between the
?lling nozzle I48 and the inner tube I80 is con
nected to a suction chamber I88 in the ?lling
head 84 and this suction chamber is directly con
nected to the second chamber I80 of the central
rotatable hollow member above referred to. As
illustrated in Fig. 5, the filling heads 84 are
arranged to be detachably mounted upon the 30
member I48 and as herein shown, each ?lling
head 64 is provided with a.- tubular extension
which is adapted to closely ?t into bored holes in
the periphery of the member I48 to form an air
and liquid tight connection between the heads 35
84 and the member I48. In addition, each ?lling
head is provided with a ?anged portion which
may be secured to the member I48 by screws, not
shown, in order to provide a detachable mount
ing between the ?lling head and the member I48. 40
Suitable gaskets, not shown, may also be provided
between the ?ange and the member I48.
Referring now to Fig. 8, it will be observed that
i
A plurality of ?lling heads 84 are mounted on
top of the sleeve II2 to rotate therewith, each of
bers 2 I0, 2I I with the vacuum pump and to alter
nately open them to atmospheric pressure. It
will be seen, therefore, that the chambers 2I0, 2I I
open to atmospheric pressure will immediately
discharge any liquid which has accumulated
therein into the supply tank I0.
Referring now to Figs. 9, 10, and 11, the valve
200 is provided with three chambers 20I, 203,
205. The chamber 20I is cylindrical in shape
and is connected by a port to the pipe 202. The
pipe 202 is connected to the usual suction pump
(not shown).
The chambers 203 and 208 are
:0
connected to the pipes 2I2, 2I3, respectively. The
chambers 20I, 203, and 205 are closed by a ro
tatable closure and by-pass valve member 281
yieldingly held against the face_of the valve 208 I8
.37
by a spring .206 and nut 2I6 on the valve shaft bottle is in ?lling position, the valve 220 is raised
206, as shown. The closure member 201 is keyed _by the pressure of‘ the liquid against the under
‘ to the shaft 206 to rotate therewith and to be surface thereof and is caused to move into the
capable of movement longitudinally thereof. In
the operation of the valve the central chamber
20I is successively connected ?rst with the cham
ber 206 during‘the rotation'of the valve member
_ 201 through substantially one-half of a cycle and
then. with the chamber 206 during substantially
10 the remaining half of the cycle, as will be ap
parent from an inspection of Figs. 9, 10; and 11,
and during these operations when suction is be
ing ‘established in the chamber 203 by the con
nection of the chamber with the central cham
ber 20I through theby-pass valve member 201,
provision is made for connecting the other cham
ber 205 with the atmosphere, as shown in Fig.
10, and for this purpose a second by-pass passage
22I is provided in the rotatable valve member
20 201.
Similarly when the chamber 206 is con
nected by the by-pass 201 to the central cham
ber 20I, then the chamber 203 is connected
by the by-pass22l to the atmosphere. In or
‘tier to soften the action of the opening of the
'25 chambers 20I, 203, and 205, air is admitted
through the bleeder ports 226, 221, as shown in
Fig. 9, to prematurely and gradually lower the
vacuum within the chamber Just prior to the sud
.
den opening of the chambers by the valve 201.
30
position slidwn in Fig. 5, permitting the liquid to
new freely from the valve passage through the _
valve to theliquid chamber I62 in the ?lling head
and thence through the inner nozzle or tube I60
comprising ,a part of the ?lling nozzle, as above
described.
When the bottle is removed from .
?lling positionand the suction broken, the valve 10'
falls into the position shown in Fig. 6 closing the
liquid passage, and in order to prevent the body.v
of liquid remaining within the chamber I62 ‘and
in the inner tube I60 from eventually dripping
from therend of the?lling nozzle, provision is
made for establishing communication between
the chamber I62 and the over?ow or suction pas
sage I66, and, as herein shown, the wall 240 sub
dividing the chamber I62 and the passage I66 is
provided with an opening 242 which is arranged
to "be opened and closed by a conical auxiliary
valve member 244 formed on the valve 220, as
shown. By reference to Figs. 5 and 6, it will be
apparent that-during. the operation of the ma
chine, when the valve is in the raised position 25
shown in Fig. 5 during the ?lling of the bottle,
the opening 242 is closed by the/auxiliary valve
member 244, and when the. valve falls into the
position shown in Fig. 6 upon removal of the
In order to remove any excess liquid that is ' bottle from bottle ?lling position, then the open
discharged into the bottles, the nozzles I46 are ing 242 is opened, permitting the suction within
connected to either of the vacuum chambers 2J0, the suction vpassage I66 to exhaust the body of
’ 2H and, as above stated, comprise an outer tube
I46 fast-in the ?lling head 64 and a. smaller in
ner tube I60 concentrically positioned in the
outer tube I46 and attached to the filling head 64,
as shown in Fig. 5. The tube I60 communicates
with the liquid supply pipe I64 through the cham
ber I62, check valve 220 and passageway I 62.
liquid contained within the chamber I62 and
nozzle I60, and to carry the same back to the
over?ow chamber. In this manner, after each
bottle ?lling operation the chamber I62 and the1
liquid nozzle I60 are completely emptied of their
liquid contents, thus preventing the subsequent
dripping of liquid from the ?lling nozzle. This
drip preventing feature of the present invention
4.0
tube I46 and the inner tube I60 communicates eliminates a disadvantage which experience has
with the vacuum chambers 2I0, 2“ through the‘ shown to be inherent in all prior ?lling machines
, passageways I66, I50, 222, pipeconnections 224, of which I am aware and contributes to the main
226 and check valves 226, 229. It will be ob _ tenance of the machine in a clean and sanitary '
'
served that when the vacuum chamber 2I£9 is condition.
46
During the operation of they machine continu
connected to the vacuum pump through the valve
40 The annular space I64 formed between the outer
200, the check valves 2I6, 226 will be closed and
the check valve 226 will be open, thus crawing
the surplus liquid from the bottle into the cham
ber 2I0 when the liquid reaches a level above the
ous suction is created at the ?lling heads, and
inasmuch as a portion of the entire number of
?lling heads function to ?ll the bottles at one
time, the remaining heads are open to the atmos
50
end 260 of the nozzle I46‘ and, conversely, when phere and, consequently, a vacuum pump of sum
the chamber 2“ is connected to the vacuum 'cient capacity is utilized to provide the necessary
pump through the valve 200, the check valves amount of suction to perform the ?lling opera
2", 226 will be closed and the check valve 226 ‘ tion.
- The individual ?lling heads having the ?lling
open and the air and surplus liquid will be with
drawn from- the bottle into the chamber 2“. nozzles mounted therein are, as above stated, re
-When the chamber 2"] is opened to atmospheric movabiy secured to the central rotatable hollow
member and this arrangement enables the pas
pressure through the valve 260', as has been de
sages therein and the nozzle to be cleaned in a
scribed, any surplus liquid which may have_ac
most economical and simple manner, and con
00 cumulated in the chamber 2" will be discharged
‘through the‘pipe 2“ and‘ check valve2i6 into tributes to the commercial value of the machine.
While the illustrated machine is particularly
the supply tank I0. The'chamber 2“ will like
wise be emptied when it' is opened to atmospheric I adapted for use in ?lling bottles, it will be under
pressure.
stood that the essential features 01' the invention
In order to prevent dripping of the liquid from may be embodied in machines for ?lling any other
containers, and while the preferred embodiments
the ?lling nozzles after the bottle has been re
moved from bottle ?lling position, the liquid pas
of the present invention have been herein illus
sage through which liquid ?ows to each ?lling trated and described, it will be understood that the
nozzle is'provided with a valve 220 herein shown ' invention may be embodied in other forms with
as comprising a conical valve face 232 and a de
in the scope of the following claims.
‘ 70
pending guide 234. The guide 264 is herein shown
Having thus described the invention, what is
as made cruciform in section to provide passages claimed is:
_
~
1. In a vacuum operated ?lling machine, in
through which the liquid may ?ow, and four in
let ports 266 are provided in the valve seat sleeve combination, a ?lling nozzle adapted to be sealed
266. As illustrated in Figs. 5 and 6, when the by a bottle, a liquid conduit connected with the
9,188,421
?lling noule, a valve in the liquid conduit located
above the discharge/end oi the ?lling nozzle for
controlling the ?ow of liquid therethrough, said
tween the suction conduit and the liquid conduit
whereby to prevent dripping of the liquid from
nozzle having a liquid tube and a suction tube, a
the end of the ?lling nomle.
suction conduit connected to the suction tube and
?lling nozzle, and means rendered operative when
the bottle is removed from the ?lling nozzle for
5. In a vacuum operated ?lling machine, in
combination, a ?lling nozzle provided with a liq
automatically establishing communication be
‘in
tween the suction conduit and a portion of the
liquid conduit between said valve and the end of
the nozzle when the valve is closed for removing
liquid therefrom to prevent dripping from the
end or the nozzle.
'
2. In a ?lling machine, in combination, a ?ll
ing nozzle, a liquid conduit connected with-the
?lling nozzle, a suction conduit, and a single valve
member for controlling the ?ow of liquid through
the liquid conduit and for establishing communi
cation between the suction conduit and akportion
oi the liquid conduit between the valve and the
end oi’ the ?lling nozzle when the valve is. closed
to thereby remove liquid therefrom to prevent
dripping from the nozzle.
_
3. In a vacuum operated ?lling machine, in
combination, a ?lling nozzle provided with a liq
uid passage and a suction passage, 9, ?lling head
automatically establishing communication be
'
uid passage and a suction passage, means for
evacuating the container when in operative ?lling
condition, a liquid supply tank operatively con
nected with the liquid passage of the ?lling nozzle 10
and from which the liquid may be drawn by the
vacuum within the container to ?ll the bottle,
over?ow means including two over?ow tanks, a
suction line connected with'the suction passage
of the ?lling nozzle, a valve member provided
with two outer chambers and an inner chamber,
the outer chambers being respectively connected
to the over?ow tanks and the inner chamber be
ing connected to a source of suction, and a posi
tively driven rotary member for establishing
communication between the inner chamber and
?rst one and then the other of the outer cham
bers, said rotary means having provision for con
necting the outer chambers successively to permit
the entrance of air therein, said means operating
to admit air to one outer chamber when the sec
ond outer chamber is being connected with the
block in which the nozzleis mounted, said block
being provided with a liquid passage connected
with the liquid passage of the ?lling nozzle and a
inner .chamber, said valve. having provision
whereby the admission of air to said chambers
suction passage connected with the suction pas
takes place gradually.
sage of the ?lling nozzle, and being provided with
6. In a ?lling machine, in combination, a ?ll
an opening establishing communication between - ing nozzle adapted to be sealed by a bottle, a liq
the suction passage and the portion of the liq
uid passage immediately above the ?lling nozzle,
and -a single movablevalve member having pro
uid ‘conduit connected with the ?lling nozzle, a
valve in the liquid conduit located above the dis
vision for controlling the ?ow of liquid through
the liquid passage insaid‘ block and for closing
and opening the said’ opening for the purpose
speci?ed when the valve is in its opened and
?ow of the liquid therethrough, a suction con
40 closed positions respectively.-
~
"- i
4. In a ?lling machine, in combination, a ?lling
nozzle adapted to be sealed by a bottle, a liquid
conduit connected with the ?lling nozzle, a suc
tion conduit, and means rendered operative by
45 removal of the bottle from the ?lling nozzle for
charge end of the ?lling nozzle for controlling the
duit, and means rendered operative by removal
of the bottle, from the ?lling nozzle for auto
matically establishing communication between
the suction conduit and the portion of the liquid
conduit between said valve and the end of the
?lling nozzle when the valve is closed for remov
ing the liquid therefrom to prevent dripping from
the end of the ?lling nozzle.
'
ARTHUR CLARENCE EVERETT.
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