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Патент USA US2116105

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May 3, 1938.
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'
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5. EATON
2,116,105
APPARATUS FOR AUTOMATICALLY DELIVERING‘ PREDETERMI'NED QUANTITIES
OF PULVEIRULENT OR GRANULAR SUBSTANCE OR MATERIAL
Filed Sept; 9, 1957
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INVENTOR
STANLEY_ EATON
By M jaw“
ATTORNEY‘
May 3, 1938.
S. EATON
APPARATUSWFOR AUTOMATICALLY DEL IVERING PREDETERMINED QUANT
‘
OF"‘PULVERULENT 0R GRANULAR SUBSTANCE 0R MATERIAL
Filed Sept. 9, 1937
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INVEN TOR
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May 3, 1938.
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$_ EATON
2,116,105
APPARATUS FOR AUTOMATICALLY DELIVERING PREDETERMINED QUANTITIES
OF FULVERULENT 0R GRANULAR SUBSTANCE OR MATERIAL
Filed Sept. 9, 1937
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INVENTOR
STANLEY EATON
BY
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‘ May 3, 1938.‘
s. EATON
2,116,105
APPARATUS FOR AUTOMATICALLY DELIVERING PREDETERMINED QUANTITIES
0F PULVERULENT OR GRANULAR SUBSTANCE OR MATERIAL
‘ Filed Sept. 9, 1957-
'
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- 5 Sheets-Sheet 4
INVENTOR
STANLEY EATON
Mam
ATTORNEY
May 3, 1938.
s. EATON
7
2,116,105
APPARATUS FOR AUTOMATICALLY DELIVERING PREDETERMINED QUANTITIES
'
OF PULVERULENT OR GRANULAR SUBSTANCE OR MATERIAL
Filed Sept. .9, 1937
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I NVENTOR
STANLEY EATON
By
,
ATTORNEY
Patented ~May 3, 1938
2,115,105,
'
l
‘ UNITED ‘STATES PATENT I OFFICE
2,116,105
APPARATUS FOR AUTOMATICALLY DELIV
- ,ERING PBEDETERMINED QUANTITIES 0F
, PULVERULENT
on
GRANULAR
sTANcE'oIt MATERIAL
SUB
-
Stanley Eaton, Liverpool, England
Application September 9, 1937, Serial No. 163,140 A
_ In Greathrltain September 10, 1936 '
‘
10'; Claims.
(Cl. 221-105)
This invention relates toapparatusv for auto? the substance-transferrer and the plunger are ef
matically delivering predetermined quantities of » fected by a series of cams arranged to revolve
pulverulent or granular substance-or material, with a rotary operating ‘shaft. and intermittently
actuate respective rocker arms, one of which be
being particularly applicable for use in the de
5 livery in regular charges or quantities of ?our, ing connected to the substance-transferrer whilst ' 5
pulverized salt, and other powdered substance or the other is connected to the plunger.
material not suitable to be fed by gravity; and ' Adjusting means may be provided whereby said
downward stroke of the plunger can be length
my invention has for its primary object to pro
ened' or ‘shortened so as to vary the charging
'vide simple and reliable apparatus for, accom
capacity
of the measuring chamber.
10
plishing
the
purpose
indicated
quickly
and
em
10
ciently.
-
i‘
'
In one convenient ‘construction said substance
With the above object in view, an apparatus‘ transferrer consists of a rectangular box-like
structure divided into two compartments by
for automatically delivering predetermined quan
tities of pulverulent or granular substance or
15 material according to the present invention com
‘prises, in. combination, a hopper for containing
material in bulk; a measuring ‘chamber having
an open top spaced below the hopper; a plunger
20
'
25
30
35
40
partments being open’ at its top and bottom to 15
provide a vertical through-passage, whilst the
other compartment is open at the bottom to pro
‘vide a bottomless chamber, and said compart
ments being adapted to alternately register with
reciprocably ?tted within said measuring cham
the open top of the measuring chamber.
ber; a carriage‘having a bottomless front com
20
The substance-transferrer is preferably pro
partment" and a rear through-passage adapted
to alternately register with said open top of the vided with slotted lateral projections which en
gage above and below respective guide bars float
measuring chamber to form a substance-trans
ingly mounted one on each side of the substance
ferrer which is slidably v‘mounted upon a table
like surface. provided between said hopper and transferrer on vertical guide rods secured to the 25
said measuring chamber; openings in ‘said table
table-like surface, the guide rods being~ ?tted
like surface to coincide ‘with said open top of the with coiled springs .the action‘ of which being
measuring chamber and a discharge ‘funnel; to impart downward pressure to said guide ba'rs
a-displaceable chute connected‘v between an‘ outlet so as to maintain the substance-transferrer in
opening of the hopper and said rear through
sealing contact with the upper surface of the 30
passage of the substance-transferrer; operating table-like surface, and in order to ensure this
mechanism for reciprocating 'the substance
end resilient material may be secured to the
transferrer over the table-like surface when the underside‘ of the substance-transferrer.
.
plunger is stationary and for reciprocating the
The displaceable chute embodied in the appa
plunger within the measuring chamber when the‘ ratus may be constituted'by a single or double
substanceetransferre'r is stationary; the arrange
walled canvas chute suitably connected between
ment of said operating mechanism and disposi
said outlet opening of the hopper and the open
tion of the parts being such that when the ap-' top of said through-passage of’ the ‘substance
paratus is in operation‘ the downward stroke oi
v40
the plunger induces a-charge of material from transferrer.
A rotary agitator device'may be mounted withthe hopper through said displaceable chute and in the hopper and adapted to be driven step
rear passage oi the substance-transierrer into the .
. measuring 'chamber, the subs'tance-transferrer
being then slid rearwardly so that its front com
partment is brought into register with the meas
uring chamber, so that upon-the plunger being
projected upwardly, , flush, with the table-like
surface, the measured material is raised from the
measuring chamberinto the front compartment
50
means of a transverse partition, one of said com- ,
of the substance-transferrer'which is then slid
forwardly so that the charge of material is per
mitted to fall through said opening in the table
by-step by pawl and ratchet mechanism opera
tively connected to a moving member of the ap
paratus.
‘
.
'
‘
~
=
'
_ Further,_a striker'devicemay be arranged to
_co-act with a projection on said dischargefunnel
during 'each discharging ‘operation so as to avoid
the likelihood of some of the materialfrom cling- _
ing to the interior of the funnel, thus aiding the
‘delivery of regular charges.v
v
‘
>
r
_I will further describe my invention with the
top and through said discharge funnel for pack- _ aid of the-accompanying sheets of explanatory
drawings which illustrate, by way of example
55 In one embodiment,‘ the timed movements ‘of only, one mode of carrying the‘ same‘ into eifec't.’
2
2,116,106
compartments 9', 9'’, respectively, by means of a
In said drawings:
Figs. 1 and 2 are side and front elevations.
respectively, of an apparatus for the purpose
indicated and constructed in accordance with the
invention.
,Figs. 3, 4, 5, 6, and 7 are side-sectional eleva
tions, but with the major portion of the supply
hopper 'and part of the motor and supporting
frame structure broken away, illustrating the
10 apparatus in its successive mainv positions as
during one complete cycle of operation, in
which:—
.
Fig. 3 shows the apparatus in its normal posi
tion with the top of the plunger or piston within
15 the measuring chamber ?ush with the table sur
face upon which the reciprocable carriage form
ing a substance-transferrer is slidably mounted.
Fig. 4 shows the fall or downstroke of the
plunger which induces a charge of the material
20 through the rear passage of the substance-trans
ferrer into the measuring chamber; during this
plunger movement the substance-transferrer is
held stationary.
Fig. 5 shows‘ the substance-transferrer slid
25 rearwardly' so as to cut-off the measured quan
transverse partition or wall 8° so as to form a
substance-transferrer. Said rear compartment
9” is open at the top and bottom to provide a
vertical through-passage, whilst the front com
partment 9' is also open at the bottom but which
may, if desired, be closed at its top by means of
a removable lid or cover, as indicated at 9‘‘, which
may be of meshwork to provide, in effect, a bot
10
tomless chamber.
The lower outlet aperture Iat of hopper l and
the open-top of said through-passage 9b of sub
stance-transferrer 9 is connected by a canvas
or other ?exible or pliable chute which, in the
apparatus illustrated, comprises an outer casing
of canvas lll_ secured at its upper end above out
let opening i' of hopper I bybinding strips H
as shown in Figs. v1 and 2, and suitably fastened
at its lower end below an upper rim portion of
rear compartment 9'’ of substance-transferrer 9,
and an inner canvas chute IllI is also secured at
its top by strips II to hopper l and carries at its
bottom end a metal reinforcement member I 0"
which loosely hangs within the open top of the
through-passage 9b of ,substance—transferrer 9.
tity in the measuring, chamber from the supply;
A piston or plunger construction comprising
in this movement of the substance-transferrer
upper and lower plates l2, l2‘, respectively, with
intermediate block I2” is fitted within measuring
the plunger remains stationary.
Fig. 6 shows the plunger projected upwardly
30 vto raise the measured quantity out of the meas
uring chamber above the level of the table sur
face, and so that the said quantity is transferred
into the forward compartment of the substance
transferrer; during the upward stroke of the
35 plunger the substance-transferrer remains sta
chamber 2 so that when plunger I2, I 2“, I2b is
in its uppermost position, as in Fig. 3, the upper 30
most plate member I2 lies within the correspond
ing opening 8' in the tabletop 8 so as‘ to be flush
with the upper surface thereof. To the underside
of the table top 8 there is fitted a discharge funnel
l3 which is secured directly below a discharge 35
tionary.
opening I" provided at the forward end of table
Fig. -"I shows the substance-transferrer slid to
its forward position-as in Fig. 1—-so that the
top 8.
measured quantity, now in the forward compart
the front and rear of substance-transferrer 9
there are secured rigid strips [4 which have their 40
40 ment of the substance-transferrer, falls through
a discharge funnel into the required container
'
Transversely disposed at the bottom edges of
ends extending beyond the vertical edges of the
substance-transferrer and are slotted at H‘ so as
or package.‘ -
Fig. 8 is a transverse section taken on line
8-8 Fig. 7, and viewed in the direction ‘of the
to engage above and below respective guide bars
I5 ?oatingly mounted one on each side of trans
powdered substance or granular material not
ferrer 9, on vertical guide rods l6 secured to the 45
upper side of the table top. The guide rods it
are ?tted with coiled springs I’! the action of
which being to impart downward pressure to
said guide bars II and so slotted strips l4, l4‘
in order to maintain the bottom of substance 50
transferrer 5 in sealing contact with the upper
surface of table top I, and in order to ensure
this object, strips of felt, leather, or other resil
ient material, are positioned at It at the bottom
55 suitable to be fed by gravity-to be fed out into
of the substance-transferrer so as to prevent the 55
45 arrows.
In the several views like characters of ref
erence denote like or equivalent parts wherever
they occur.
In the apparatus shown in the drawings the
reference numeral l indicates the hopper proper
constructed of- wood, or other suitable material,
and which is adapted to contain in bulk the ma
. terial-ssuch as ?our, pulverized salt, or other
small regular or predetermined quantities into Y powdered substance from passing thereunder.
when the apparatus is being operated. The front
a measuring chamber 2. The hopper i is adapt
ed to communicate at intervals with measuring end of substance-transferrer 9 is also provided
5 situated at the front end of a rectangular frame
with a forward extension 9° which has on its
underside a ?at piece of felt or other resilient 60
material I81. Said forward extension 9° serves
as a cover for the table opening 8*’ which coin
structure which includes a casing 6 and rear up
cides with discharge funnel II.
chamber 2.
'
Said hopper I is supported by cross straps 3
and tie-rods 4 at thetop of supporting uprights
right supports ‘I; the measuring chamber 2 be
65 ing enclosed within casing 6 adjacent the front
of the frame structure; a middle side portion 6‘
plunger I2, i2", i2", as at the commencement of
of easing 6 may be removed to obtain access to
the interior as and when required. To the top
of easing 6 there is secured a'table, or like ?at
70 surface 8 having an opening lla coinciding with
from hopper I is induced through the substance
transferrer 9 by way of the canvas or other ?ex
ible chute III, III‘ into measuring chamber 2, said
through-passage 9b of the substance-transferrer 70
now being in register therewith, whilst the
In use, upon the fall or downstroke of the
a charging operation, the powdered . material
the open top of measuring chamber 2, and upon
which surface 8 there is reciprocally mounted transferrer 9 is then slid in a rearward direc
and guided a carriage or discharging "element -tion so that its bottomless compartment 9“ is
which, in this example, consists of a rectangular moved directly over the open top of measuring
75 box-like structure 9 divided into front and rear chamber 2 (during this movement the bottom 76
_
.
Y
3
2,118,105
leading edge of partition 9° levels the material '
pletely delivered through the discharge ?mnel
contained in measuring chamber 2 ?ush with
the table surface 8) whereupon said plunger I2,
I28, 12” in chamber 2 is projected upwardly to
and so as to avoid the likelihood of some of the
powdered material clinging to the interior there- ,
carry or raise the charge of material contained
in chamber 2 into the now registering bottom
of, I secure to funnel I3 a lateral arm extension
43 which has its outer end adapted to co-act with
a striker member 44 fulcrumed at the top of a
less compartment 9“; the transferrer 9 is then
bar 45 secured to casing 6 and having a coiled
slid in the forward direction so that theropen
spring 46 anchored‘ to its forward end so as to
bottom of said latter compartment 9“ registers
10 with table opening 8b and the charge of material
falls through discharge funnel l3 into a required
package or container placed thereunder.
It will be appreciated that ‘upon each down
ward stroke of the plunger I2, I2“, 12“ a suction
15 effect is created which effectively induces into
the measuring chamber 2 successive charges of.
normally maintain the hammer part 44'1 of striker
~rnember 44 in contact with the funnel arm 43. 10
The arrangement of the striker device 44, 44“
is such that when spaced teeth 41a carried by a
rotary disc 41 driven by operating shaft I9 press
the rear end of the pivotal striker member 44
downward its forward end is raised and when
each tooth 41“. leaves the- rear end of striker
‘ material from hopper I, such feeding operation‘ member 44 the 'coiled spring 45 brings the ham
being assisted to a certain extent by gravity.
mer part‘44“ rapidly downward so that the lat
" During reciprocation of the transferrer 9 and‘ ter imparts a sharp blow upon the arm 43 of
20
due to the resultant shaking effect‘ imparted‘ funnel I3, thus having the effect of shaking any 20
powdered substance that may be adhering within
ciated- therewith, as later described, powdered the funnel; the positioning of the teeth 418 is
thereto by suitable operating mechanism assoé
‘ material such as ?our, is effectively discharged
in uniform quantities.
25
such that _the latter act upon the striker member
at and during each discharging stroke.
In the example illustrated, the requisite recip- '
rocation of the substance-transferrer .9 and
plunger I2, I2‘, I2h relative to each other is
effected by an operating cam shaft "revolubly
mounted in transverse position between opposite
It will be obvious that any other suitable'oper 25
ative interconnection may be e?fected between
the substance-transferrer 9 and plunger I2, I2“,
I 2h to effect, the requisite relative movements of
these parts ‘as hereinbefore described; moreover,
30 sides of casing Ii, and to which shaft I9 is secured
the apparatus may be operated fromany suitable 30.
a sprocket wheel 20 driven by a chain 2| con
nected ‘to an electric motor 22 mounted upon
table. 8 and adapted to be set in motion by a
switch 23 located on casing i at the front of the
35 apparatus; sprocket wheel 20 and chain II are
power transmission, or it may be adapted for
manual operation, as by a foot pedal or hand
lever.
'
,
\
An automatic or power operated agitator de
vice may be rotatably disposed in the hopper I
housed within a guard casing 24: the operating ' adjacent the outlet aperture Ia thereof or any
shaft I9 is ?tted with a series of cams 25, 25'-_ other convenient situation, in order to ensure the
and 26, 26“.
-
The cams 25, 25a are pre-set to co-act with re
40 spective lateral pin projections 21, 21* secured
at the lower end of a rocker arm 28 pivoted on
a shaft 29 and having its upper end passing
through va slot 8c in table 8 and pivotally con
nected at 30 to a link 31; the other-end of link
3| is connected at 32 to the rear of substance
free flow of material to the measuring chamber.
The agitator device shown in the drawings com
prises a shaft 48 rotatably mounted between op
posite sides of hopper I and carrying two two
bladed propellors each designated 49 spaced apart
40
but set at right-angles to each other. An end
of said shaft 48 projects through a side of hopper
I and is ?tted with a toothed ratchet wheel 59 45
whereto is secured a link 5| carrying a suitable
transferrer 9. The reciprocation of the plunger
spring-returned pawl 52 engaging with ratchet
I2, I23, I2‘I within measuring chamber 2 is ef
fected by a vertical link 33-having its upper end wheel 50. The bottom end of arm 5| is pivotally
pivotally secured to the plunger block I2h and connected to the upper end of a connecting rod
its lower end pivotally connected at 33* to one 53 the lower end of which is revolubly anchored
arm 34 ofa bell-crank lever 34, 35 pivoted on a at 53‘ to the rotary disc 41 driven by the operat
'
~
transverse shaft 36 and having its other arm 35 ing shaft l9.
In use, the connecting rod 53 oscillates the link
adjustably secured to a connecting link 31 piv
otally anchored at its opposite end to the lower 51 so that its pawl 52 imparts step-by-step one
end of a rocker arm 38 pivoted on a transverse
way rotary movement to wheel 50 and so the
shaft 39 and having its upper end ?tted with pin
propellors 49 within hopper t. I
projections 40, 49' adapted to respectively co-act
with the cams 26, 26“, whereby plunger I2, I2‘,
In lieu of the canvas or other ?exible chute
before described, a sheet metal chute or tube may
I2b is reciprocated so as to correspond with the
have its upper end enclosing and pivotally con
y
60 movements of substance-transferrer 9 as before - nected to the outlet aperture In of hopper I whilst
described.
The capacity of measuring chamber 2 may be
varied or adjustedto suit different requirements
or materials by pre-setting the downward stroke
of the plunger so that the same may be length- ‘
ened-or shortened. In the apparatus ?lustrated
this is eifected by turning a hand knob 4|‘ of a
screw-threaded rod 4I—situated in a slotted por
tion 35'1 of arm 34-in one direction or the other
70 so (as to impart upward or downward motion -to
a block “having a correspondingly screw-tapped
passage, and to which block 42' the adjacent end
of connecting link 31>is pivotally anchored.
In order to ensure that each charge or meas
75 ured quantity of the powdered substance is com
its lower end may register with, and be located
within, the open end of the through-passage 9°
of substance-transferrer 9 in such manner as to. ’
follow the movements thereof'during reciproca-'
tion.
'
What I claim as my invention and desire to
secure by Letters Patent is:—
I
1. Apparatus for automatically delivering pre
determined quantities of pulverulent or granu
lar substance or‘ material comprising,‘ in combi 70
nation, a hopper for containing material in bulk;
a measuring chamber having an open top spaced
below the-hopper; a.v plunger reciprocably‘?tted
‘withinrsaid measuring chamber; a carriage hav
ing a bottomless front compartment and a rear
4
‘ 2,118,105
through-passage adapted to alternately register
open at the bottom to provide a bottomless
with said open top of the measuring chamber to
form a. substance-transferrer which is slidably
chamber, and said compartments being adapted
to alternately register with the open top of the
mounted upon a table-like surface provided be
measuring chamber.
tween said hopper and said measuring chamber;
‘openings in said table-like surface to coincide
with the open top of the measuring chamber and
5. Apparatus for automatically delivering pre
determined quantities of pulverulent or granular
_
substance or material as claimed in the preceding
a discharge funnel; a displaceable ~chute con
nected between an outlet opening of the hopper
10 and said rear through-passage of the substance
claim 1, wherein the substance-transferrer is pro
. transferrer; operating mechanism for reciprocat
ingly mounted one on each side of the substance
transferrer on vertical guide rods secured to the
ing the substance-transferrer over the table-like
.surface when the plunger is stationary and for
reciprocating the plunger within the measuring
15 chamber when the substance transferrer is sta
tionary: the arrangement of said operating mech
anism and disposition of the parts being' such
that when the apparatus is in operation the
downward stroke of the plunger induces a charge
20 of material from the hopper through said dis
placeable chute and rear passage of the sub
stance-transferrer into the measuring chamber,
the substance-transferrer being then slid rear
wardly so that its front compartment is brought
into register with the measuring chamber, so that
vided with slotted lateral projections which en
gage above and below respective guide bars ?oat
10
table-like surface, the guide rods being fitted with
coiled springs the action of which being to impart
downward pressure to said guide bars so as to
maintain the substance-transferrer in sealing
contact with the upper surface of the table-like
surface.
'
6. Apparatus for automatically delivering pre
determined quantities of pulverulent or granular
20
substance or material as claimed in the preceding
claim 1, wherein the underside of the substance
transferrer which contacts with the table-like sur
face is fitted with resilient material, for the pur
upon the plunger being projected upwardly, ?ush
with the table-like surface,'the measured mate
pose specified.
7. Appriratusior automatically delivering pre
determined quantities of pulverulent or granular
rial is raised from the measuring chamber into
substance or material as claimed in the preceding
the front compartment of the substance-trans
claim 1, wherein said displaceable chute is con
stituted by a canvas chute connected between the 30
outlet opening of the hopper and the open top of
said through-passage of the substance-trans
30 ferrer which is then slid forwardly so that the
charge of material is permitted to fall through
said opening in the table top and through said
discharge funnel for packing.
2. Apparatus for ‘automatically delivering pre
determined quantities of pulverulent or granular
i'errer. .
substance or material as claimed in the preceding
substance or material as claimed in the preceding
claim, wherein the timed movements of the sub
stance-transferrer and the plunger are effected
claim‘l, wherein said displaceable chute is con
stituted by adouble walled canvas chute con
IS in
I
8. Apparatus. for automatically delivering pre
determined quantities of pulverulent or granular
by a series of cams arranged to revolve with a ' nected between the outlet opening of the hopper
and the open top of said through-passage of the
substance-transferr'er.
9. Apparatus for automatically delivering pre
determined quantities of .pulverulent or granular
other is connected to the plunger. '
3. Apparatus for automatically delivering pre
substance or material as claimed in the preceding
45 determined quantities of pulverulent or granular claim 1, wherein a rotary agitator device is
substanceor material as claimed in the preceding mounted within the hopper and adapted to be
driven step-by-step by pawl and ratchet mecha
claim 1, and adjusting means whereby said down
ward stroke of the plunger can be lengthened or nism operatlvely connected to a moving member
shortened so as to vary the charging capacity of of the apparatus.
10. 'Apparatus for automatically delivering pre 50
50 the measuring chamber.
determined quantities of pulverulent or granular
4. Apparatus for automatically delivering pre
determinedquantities of pulverulent or granular substance or material as claimed _in the preceding
substance or material as claimed in the preceding claim 1, wherein a striker device is arranged to
co-act with a projection on said discharge funnel
claim 1, wherein said substance-transferrer con
55 sists of a rectangular box-like structure divided during each discharging operation so as to avoid 55
40
rotary operating shaft and intermittently actuate
respective rocker arms, one of which being con
nected to the substance transferrer whilst the
into two compartments by means of a trans
the likelihood of some of the material from‘ cling-.
verse partition, one of said compartments being ' ing to the interior of the funnel, thus aiding the
open at its top and bottom to’ provide a vertical
through-passage whilst the other compartment is
delivery of regular charges.
STANLEY EATON.
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