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Патент USA US2115799

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May 3, 1938.
2,115,799 .
Filed June '24, 1957
3'» Sheets-Sheet l\
May 3, 1938.
Filed June' 24, 1937
J03 7
JO 2
5 Sheets-Sheet 2
May 3, 1938.
Filed June 24, 1937
3 Sheets-Sheet 3
Patented May 3, 1938
John Brandt, Chicago, Ill., assignor to Salerno
Machinery Company, Chicago, Ill., a corpora
tion of Illinois
Application June 24, 1937, Serial No. 150,099
4 Claims. (Cl. 107—28)
My invention relates to machines for deposit
valve-governed, leading to the smaller hopper,
ing coatings of soft plastic confections, such as which may be termed the jelly hopper. As
icings, jellies, and the like upon baked wafers or
cookies to produce coated or deposit goods. The
5 present invention relates to improvements in the
depositing mechanism of such a machine as that
shown in Salerno Patent No. 1,801,573, dated
April 21, 1931, and has to do with changes brought
about by the provision of additional parts where
10 by the functioning of the depositing mechanisms
is made more uniform and regular.
In the fol
the jelly hopper, and a stationary rear forcing
other parts of the machine improved upon as will
be necessary for a clear understanding of the
chamber wall 25, both parallel with the partition
wall 23, and with the intersecting hopper walls 15
same, and in the appended claims I have set
at the ends ‘of the hopper providing two forcing
vertical section in a plane extending transversely
20 of the hopper and longitudinally of the machine,
the plane of the section being indicated by the
dotted line |—| on Fig. 3;
Fig. 2 is a left side elevation of the same por
tion of the machine shown in Fig. 1;
Fig. 3 is a rear elevation of the upper portion
of the machine viewed from a plane just to the
rear of the hopper structure, parts of the hopper
casing being broken away to show parts behind
them; and
Fig. 4 is a detail vertical section showing my in
vention applied to the icing mechanism only, and
showing a position of the forcing plunger and
valve opposite to that shown in Fig. 1.
Like reference characters identify like parts in
35 all the ?gures of the drawings.
partition 23, separating the icing hopper from
lowing speci?cation I have described my present
invention and improvement together with such
forth the essential elements of my invention.
In the accompanying drawings Figure 1 is a
sociated with each hopper is a reciprocating
plunger or pumping member cooperating with the
valve member of the particular hopper to pump 01
charges of confection from such hopper through
the nozzles to coat the cakes.
As in the case of the machine described in said
Salerno Patent No. 1,801,573, the hopper struc
ture is formed with an approximately central
chamber wall 24 and a stationary front forcing
chambers within which severally work the ver
tically reciprocating ?at piston or plunger 26 of
the jelly depositing mechanism, and the simi
lar plunger or piston 2'! of the icing depositing 20
mechanism. Below the plunger 26 and rotatably
mounted in the stationary members of the forcing
mechanism is arranged the rotary ?at-sided valve
member 28 of the jelly depositing mechanism and
the similar rotary valve 29 of the icing depositing 5
mechanism, each provided with teeth forming a
gear at one end of the valve member and the
toothed portions of the two members being dis
posed at opposite sides of the machine.
The icing plunger or piston member 21 is re
ciprocated by means of a pair of eccentrics 40
on a driven shaft 32, vertical connecting bars 4|,
rocking adjusting frames 42, and a pair of con
necting rods 44 pivoted to opposite ends of a
cross-head 45 slidingly mounted in a guide frame 35
For the purpose of facilitating an understand
41 above the double hopper structure, and con
ing of the present invention a brief preliminary nected by bolts 46 to the upper ‘side of the piston.
description of the organization of the machine
The icing valve 29 is rotated in synchronism
will ?rst be given.
‘with the piston movements through a cam 52 se
The wafers to be deposited are carried forward
cured to the shaft 32, a rocking lever 54, a con 40
ly through the machine on an endless intermit
necting rod 55, and a bell-crank 5'! having a
tently movable feed belt I passing over the top vertical member 51a connected to a sliding hori
of a rocking table 2, which is given an inter—‘ zontal rack-bar 58 cooperating with the toothed
mittent lifting movement of determinable ex
end of said valve 29. The timing of the plunger
tent to bring the rows of wafers, one row at a
and valve movement is such that the plunger will
time, into proximity with a cross-row of deposit
begin to ascend an instant before the valve closes
ing nozzles, the depositing operations occurring communication through the nozzles, with the re
at the periods of rest of the belt in its forward sult that formation of a nipple of confection upon
the top of the deposit is prevented.
The deposits of one confection are made
The jelly plunger or piston 26 is operated 50
through a central nozzle a, having valve~governed through a cam 59 adjus'tably secured (through
communication with one supply hopper,—in the means not illustrated) to the shaft 32, a rocking
present instance the larger one, usually used for adjusting frame 60, a connecting rod 5!, a rock
the deposit of icing,--andlthe other a concentric arm 62 and rock shaft 63 carrying a pair of rock
outer nozzle providing an annular passage, also arms 64-454 connected by links 65-65 to a cross
I‘ head 86 slidingly mounted in the guide frame 41
and connected by vertical bars 81 with the piston.
The jelly valve 28 is operated by a cam 68, also
adjustably secured to the shaft 32 through means
for simultaneous adjustment with the cam 59
through means not illustrated, a rocking lever
69, a connecting rod ‘I8, and a bell crank 1| hav
ing a vertical arm connected to a sliding horizon
tal rack-bar 72 arranged to mesh with the toothed
10 end of said jelly valve.
The table 2, it may be stated, is supported and
intermittently lifted to a determinable extent
through a triple-faced cam adjustably secured
to a shaft 93 having geared connection with the
15 shaft 32, and arranged through a cooperating
cam roller carried by arms 88 upon a yoke 85
loosely mounted on a rock shaft 55 and through
a lug 86 on said yoke and a block 83 secured to:
such rock shaft to rock such shaft and a pair of
20 arms 82 also secured thereto, and through a pair
.of links 8| pivoted to the ends of such arms to
raise and lower the table to an extent determined
by the particular face of the cam.
Coming now to the modi?ed construction of
25 the depositing mechanism which forms the sub
ject matter of the present invention, it will be
understood that my invention may be applied
either to the icing depositing mechanism, or the
jelly depositing mechanism, or both. In deposit
30 ing machines of the prior art, constructed in
accordance with the disclosure and teaching of
the Salerno patent above mentioned, it has been
found in practice that certain defects exist,
found usually to a greater extent in the icing de
positing mechanism than the jelly depositing
mechanism, though in some measure inherent in
both. The icing (or other confection) in some
instances tends to thicken, and clog around the
entrance passage to the rotary Valve, particularly
40 when a somewhat stiff and heavy confection is
being operated upon, and it is frequently neces~
sary to manually scrape down the partially caked
matter from the sides of the hopper and stir it
up in this region. Another defect arises from
.45 the fact that when operating the machine at full
speed the suction induced by the upward move
ment of the piston in the forcing chamber im
mediately after the momentary initial suction
which draws back the ?nal nipple of confection
50 from the top of the deposit and at the time the
valve is beginning to open communication be
tween the supply hopper and the forcing cham
ber, is under some circumstances insuflicient
to induce a free and rapid flow of the somewhat
55 thick and viscid confection into such chamber
sufficient to entirely ?ll it during the upward
movement of the piston, with the result that a
rare?ed void remains which upon the next down
ward movement of the piston acts to produce an
60 imperfect and wrinkled deposit of confection
upon the wafers.
Should the confection be un
usually stiff, and become clotted, the tendency
to imperfect functioning of the machine is fur
ther intensi?ed. It is the object of my inven
65 tion to maintain a smooth uniform consistence of
the confection adjacent the lowermost portion
of the hopper, and bring about a free and ade
quate ?ow of the confection from the hopper into
the forcing chamber to ?ll it properly under all
70 conditions, so that when the charge from the
chamber is forced through the valve and nozzles
of the machine perfectly formed deposits of con
fection will be made.
To this end, and describing ?rst the mechanism
75 for depositing the icing, I provide a supplemen
tary pumping member consisting of a vertically j
reciprocating plunger I88 arranged immediately
above the valve opening covered and uncovered
by the icing valve 29, this plunger being housed
in a chamber formed by the forward face of the
front forcing chamber wall 25, and a second par
allel forward wall I 8| secured to the hopper
walls at the sides of the machine, and the portions
of such side hopper walls lying between the walls
25 and IN.
This supplementary pumping member I88 is
arranged to move downwardly as the plunger 21
moves upwardly and while the valve 29 opens
communication between the hopper and the forc
ing chamber, and to move upwardly while com 15
munication is closed between the hopper and
forcing chamber and while the confection is being
extruded through the valve passage and deposit
ing nozzles. The result is a vigorous pumping
action of the confection as it is pumped into and 20
out of the pumping chamber below the plunger
I88, which upon the downward stroke of the
plunger drives the confection beneath it in one
stream toward and through the valve opening
and at the same time drives excess confection in 25
another stream underneath the partition HM,
and upon the upward stroke‘ of the plunger draws‘
the confection into space below, and then exerts
a stirring effect on the confection adjacent the
valve opening which aids materially in keeping 30
the confection of uniform consistency and free
from clots tending to cause irregularity in the
functioning of the forcing and valve mechanism.
To effect the described movement of the sup
plemental pumping member I08, I have provided 35
a pair of oscillating levers I82—I82, which are
intermediately pivoted upon a cross-bar I83 ex
tending between and secured to the side walls of
the hopper structure, the levers being pivotally
connected at their inner ends to links IDA-I84 to
which are pivoted also to the cross-head 45 of
the icing depositing mechanism and at their
outer ends are pivoted to links I88a pivotally
connected with lugs formed on the top of the
member I88.
The mechanism for depositing the jelly or '
other confection is substantially the same in con
struction and arrangement, and includes the sup
plementary pumping member I85, reciprocating
in a chamber enclosed by the forcing chamber 50
wall 24 and a parallel rear wall I86 and por
tions of the side walls of the jelly hopper, the
pumping member being reciprocated by means
of a pair of oscillating levers I8'I-I8'l inter
mediately pivoted to a stationary cross-bar I88, 55
and connected by links I 89—-I89 pivoted to the
cross-head B8 of the jelly plunger mechanism and
by links II8—I I8 pivoted to lugs upon the top
of such plunger member.
It will be noted that whatever be the timing 60
of the icing depositing mechanism with respect
to the jelly depositing mechanism, the cori
' nections described will at all times cause the sup
plemental plungers I88 and I85 to operate in
synchronism with the movements of the respec~1 65
tive associated forcing plungers 21 and 26.
I claim:
1. In a confection-depositing machine, a con
fection hopper having an outlet opening adjacent
its bottom, a row of depositing nozzles adjacent 70
said outlet opening, a forcing chamber having an
opening adjacent said outlet opening of the hop
per, a reciprocating piston closing said chamber
above its opening, a valve seated in the hopper
structure and arranged to control communica 75
tion alternatively between said piston chamber
‘and said hopper and between said piston cham
ber and said nozzles, means for operating said
piston and said valve synchronously, a pumping
chamber having an opening in said hopper ad
jacent said outlet opening of the hopper, a plunger
in said pumping chamber, and means for recipro
cating said plunger to expel confection from said
pumping chamber when said valve is open be
10 tween said hopper and said forcing chamber and
to draw confection into said pumping chamber
when said valve is closed between said hopper
and said forcing chamber.
2. In a confection-depositing machine, a con
chamber and said valve synchronously, a pump
ing chamber having an opening in said hopper
adjacent said outlet opening of the hopper, a
plunger in said pumping chamber, and means.
for reciprocating said plunger to expel confec
tion from said pumping chamber when said valve
is open between said hopper and said forcing
chamber and to draw confection into said pump
ing chamber when said valve is closed between
said hopper and said forcing chamber.
3. Confection-depositing mechanism according
to claim 1 in which the means for reciprocating
the plunger in the pumping chamber comprises
linkage intermediate the recited piston and said
15 fection hopper having an outlet opening adjacent
its bottom, a row of depositing nozzles adjacent
4. Confection-depositing mechanism according
said outlet opening, a flat vertical rectangular
forcing chamber having a bottom opening ad
jacent said outlet opening of the hopper, a re
20 ciprocating flat piston closing said chamber above
its opening, a valve seated in the hopper structure
and arranged to control communication alter
natively between said piston chamber and said
hopper and between said piston chamber and
25 said nozzles, means for operating said piston
to claim 1 in which the means for reciprocating
the plunger in the pumping chamber comprises
a pair of oscillating levers intermediately pivot
ed upon a stationary part of the hopper struc 20
ture and a pair of links pivoted to the ends of
said levers. and also pivoted to the recited piston,
and a pair of links pivoted to the other ends of
said levers and also pivoted to said plunger.
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