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Патент USA US2137388

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'Nov. 22, 1938.
Filed Sept. 28, 1936
; M
2 Sheets-Sheet 1
Nov. 22, 1938.
2,137,388 ‘
Filed Sept. 28, 1936
2 Sheets-Sheet 2
Patented Nov. 22, ‘1938
2,137,388‘ '
2,137,383 f
PULPING AND comma sYsrnM
Frank D. Chapman, Berlin, we.
vApplication September 28, 1936, Serial No. 102,843 ‘
s‘caima- (Cl. 146-106)
The present invention relates in general to im
provements in the art of treating semi-?uent
commodities, and relates more speci?cally to ‘im
Still another speci?c object of my invention
is the provision of an improved combined crusher v
provements in the construction and operation of ..
apparatus for reducing substances such as fruits
and vegetables to pulp and for subsequently
- transporting the pulp through a conduit.
Generally de?ned, one object of the present
invention is to provide simple and e?iclent pulp
10 ing or crushing apparatus, and another object is
and'pump, the elements‘ of which are operable
in unison so that the product from the crusher
is constantly and quickly delivered from the unit 5
as it is produced.
An additional speci?c object of this invention
is to provide various improvements in the con; "
struction and operation of pulpingmechanisms,
the provision of durable and effective means for ' whereby such mechanisms may be readily as- 10
transporting semi-?uent substances such as the
pulp produced in the crushing apparatus;
It is frequently desirable in canning factories,
be able to reduce commodities such as
is totomatoes,
corn and other food products, to, a
sembled or‘dismantled, and manufactured at
moderate cost.
These and other: objects_ and advantages will
be apparent from the following detailed descrip
A clear conception of the several features con- ,
pulp which is comparatively?uent; and to also Kstituting the present improvement, and of the
\and e?ectively transporting the relatively thick mode of operating combined crusher and pump
units built in accordance with the invention, may
_26\pulp to a remote portion of the factory for fur
be had by referring to the drawings accompanye 20
“the'r treatment or for packing 'into containers. ing
and forming a part of the speci?cation
‘The'pulping apparatus must be durable and ef 'whereinjike
reference characters designate, the
fective in operation, and the pumping mecha
nism for‘ removing the pulp as produced in, the same or similar parts in the various views.
Fig. 1 is a longitudinal central vertical section
25 crusher must function automatically to insure
through one of the improved pulping and trans
provide means such as a pump for constantly
complete withdrawal of ' the crushed material porting units;
as produced. The entire apparatus should also .
2 is a transverse vertical section through
be relatively compact and operable‘ as a’ single theFig.
unit,- and allporticns thereof must also be readily of Fig. 1;, crusher, taken along the line 2-2
accessible for inspection, cleaningv and removal
Fig. 3 is a. longitudinal central vertical sec- 30
of parts so that the equipment may be main-‘
tion through a modi?ed form of pulp conveying
tained in highly sanitary condition at all times. Pump;
None of the prior pulping and transporting sys
horizontal section
tems have combined all of these desirable fea
through the crusher taken along the line 4-4
tures with safety of operation, and the prior of
Fig. 1, and a top view of the pulp transport 35
equipment has therefore been more or less objec
1118 pump;
tionable and relatively inetlicient.
5 is a transverse vertical section through
The present invention contemplates provision theFig.
portion of the improved pump,
of an improved crushing and transporting unit taken‘discharge
along the line 5—5 of Fig.‘ 1; and
which besides being compact and safely opera
Fig. 6 is another transverse vertical section 40
ble, will perform its intended'duty most eil'ec
through the inlet portion of‘ the pump, taken
tlvely and automatically, and wherein all parts along
the line 6-8 of Fig. 1.
are readily accessible for inspection and clean
_ While the invention has been shown and de
scribed herein as being especially applicable to a
I Another speci?c object of my present invention crusher and pump unit for pulping and trans
is toi'provide improvements in the details of con
porting tomatoes, it is not the intent to thereby
struction of pulping crushers or cutters, where
by the efficiency of such machines is enhanced since the improved pulping and conveying ma
to a maximum, and the parts thereof may be chines may obviously be used either singly or
60 conveniently assembled or dismantled.
A further speci?c object of the present in
vention is to provide an improved pump struc- "
ture especially adapted to most effectively‘ handle
semi-fluent substances such as vpulped .fruit and
vegetables, or refuse.
' combined, and may also ‘be utilized for the treat- 50
.ment and transportation of other commodities.
Referglng to the drawings, the improved pulp
ing an
transporting unit illustrated therein;
comprises in general a main casing consisting'of
detachable. upper, intermediate and-lower sec-' 55
tions II), II, l2 respectively; a crushing or pulp
A-ing rotor mounted within the chamber formed
by the upper and intermediate sections In, H
and consisting of a shaft l3 and disintegrating
blades I4 mounted therein; a grate member l5
removably supported within the intermediate
casing section H and having transverse bars l6
forming slots cooperable with the rotor blades
l4; a tubular casing portion l1 formed integral
10 with and extending away from an end of the
trough portion l8 of the lowercasing section l2
and having therein four ?xed vanes IS; a lower
place either by welding, pinning or otherwise at
taching these collars to the shaft l3.
The grate member l5 may also be formed of
standard bar stock cut‘into proper lengths and
welded together, and the bars l6 are spaced apart
so as to permit free passage of the, blades l4
therebetween as clearly shown in Figs. 1 and 4.
The‘ grate assembly rests along one end upon
blocks ‘35 secured to the interior of the inter
shaft 20 extending longitudinally through the
lower casing portions l1, l8 and having secured
15 thereto a conveyor screw 2| and rotor blades 22
mediate casing section H, and is removably at 10
tached to the casing section Ii by cap screws
36 which are accessible for manipulation from
the exterior of the main casing. The trough
portion I8 of the lower casing section I2 is rela
tively unobstructed and is located directly be 15
located within the casing portion 11; a chain
drive 23 connecting the upper and lower shafts
i3, 20; a pulley 24 for drivingthe unit; a supply
hopper 25 for delivering the untreated or raw
20 material into the disintegrating chamber of the
unit from above; a conducting pipe or conduit
26 for delivering the pulped or semi-fluent prod
uct tangentially from the end of the tubular cas
ing portion I1; and a base 21 for supporting
The main casing sections III, I I, I2 may all be
formed of sheet metal welded at the joints, and
are detachably connected to each other by means
neath the grate member l5, and the crushing
chamber is obviously disposed directly above this
grate member. The stationary vanes [9 are dis
posed radially, and are located near the junction
of the tubular casing portion l1 with the trough 20
portion l8 and at the delivery end of the latter.
The lower shaft 20 is disposed substantially
parallel to the upper shaft l3, and extends
throughout the entire length of the lower casing
portions I1, l8 and beyond the outer ends there 25
of. One end of the shaft 20 penetrates the ad
jacent end of the trough portion l8 through a
packing gland 31, and this end of the shaft is
detachably connected to an auxiliary shaft sec
of bolts 28 coacting with ?anges rigidly) attached ‘ tion
38)by means of a positive jaw coupling'39 30
30 to the casing sections. The upper section III
‘Fig. 1. The shaft section 38 is
which supports the supply hopper 25 and which mounted ininbearings
40, 4| which are detachably
cooperates with the intermediate section it to
house the disintegrating roto , is also provided attached to the base 21’, and the chain ‘drive 23
with an internal downwardly \inclined'bafile and provides a direct driving connection between the 35
shaft section 33 and the upper drive shaft l3.
35 guide plate 29 which extends partially over the The opposite end of theshaft 20 penetrates a
rotor and substantially tangent to the rotor pe
removable end closure 42 through another pack
riphery. The casing‘ section It! is also provided ing
gland 43, and is supported directly by an end
with integral bearing supports or retainers 30
* bearing 44 which is slidably associated with the
which coact with like retainers secured to the base 21. The bearing 44 is normally ?xed in 40
40 intermediate section I I to con?ne bearing sleeves
3| in alignment with each other when the casing
sections In, H are clamped together, and the .
rotor shaft I3 is normally journalled in these
bearing sleeves 3|. The extreme ends of the re
tainers 30 may be enlarged for the proper appli
cation of auxiliary clamps as shown in Fig. 4.
'The disintegrating rotor shaft I3 is formed
from_bar stock having a polygonal cross-section,
and in the present disclosure this shaft has been
" produced from hexagonal stock as clearly shown
in Fig, 2. The medial portion 32 of the shaft l3
position by means of a bolt 45, and when this bolt
is released, the bearing 44 may be slipped longi
tudinally from the end of the shaft 20. The
closure cap or end closure 42 has a sealing gasket
46 which is normally pressed against the adjacent
end of the tubular casing portion I‘! by means
of swing bolts and wing nuts 41, and when the
nuts." are released and the end bearing 44 has
been withdrawn, the closure 42 may be removed,
to gain access to the interior of the pump casing. 50
The conveyor screw 2| which is of the helical
is rotatable within'and rather snugly fits
which is located within the crushing chamber, is type,tubular
casing portion 11, and this screw
of the original hexagonal shape, and the opposite _ the
ends thereof have been turned down to properly may be secured to the shaft 20 in any suitable
manner in order to insure‘ rotation thereof with
coact with the bearing sleeves“ and to permit the
a. GI
shaft. As shown in Fig. 1', the pump blades
these sleeves to be applied or removed longi
tudinally over the shaft ends. The disintegrating _22 which arerigi'dly attached to the'shaft 20
blades l4 are S-shaped as shown in Fig. 2, and
these blades are formed of wear resistant sheet
metal and have central hexagonal openings
adapted to'snugly fit the medial shaft portion 32.
The bladesv l4 are arranged spirally with respect
to the shaft axis by merely applying the suc->
cessive blades to the hexagonal portion‘32 of
the shaft 13 sixty degrees in advance of each
other, and these blades are de?nitely spaced apart
by means of collars 33 and are retained in as
sembled condition by end collars 34 as clearly
‘shown in Fig. 1. The'collars 33 are formed by.
merely cutting pieces of suitable length from a
tube or pipe having an internal diameter slightly
greater than the‘diagonal or greatest diameter
of the hexagonal shaft portion 32, thereby mak
ing it simple to construct and to apply these col
lars; and the end collars 34 may be locked in
directly adjacent the end of the‘conveyor screw
2 I, have the same external diameter as the screw,
and these blades are disposed at a slight angle 60
and radiate from the shaft in the plane of the
tangential outlet conduit 26. The pump blades
22' may however be slightly longer so that the
'external diameter of the final pump rotor is
somewhat greater than that of the conveyor 65
screw 2|, as shown in Fig. 3. In this modi?ca
‘.tion; the tubular casing portion I'I' may be pro
vided with a somewhat enlarged end section 41'
to accommodate the pump rotor enlargement,
and the end. closure 42 may be constructed pre 70
cisely the same as previously described.
. The pulley 24 which normally drives the unit
through the shaft I3 and chain gearing, is pref
erably weighted for ?y wheel effect, and is driv
ingly attached to the upper shaft IS in any suit; 75
2, 187,388
able manner. This pulley 24 may be driven from
the wing nuts 41 ‘are released'and the clamping
bolts are swung away from the end closure 42,
‘l3 may ‘if desired, be provided with an idler this closure
is released for removal. Such re
pulley for belt shifting purposes. The support-‘ moval‘may be effected upon release of the bolt 45
which normally holds the bearing 44 in place, and
ing base 21 for the unit may be formed of stand
ard angle irons welded together, and welded con
the entire- rotor may thereafter ,be withdrawn
any convenient source of power, and the shaft
struction is preferably resorted ' to wherever
from within the tubular casing portion 11 in an
obvious manner, the jaw coupling 39 permitting
When the improved combined crushing and ' such removal of the pump rotor.
pumping unit has been properly constructed, as
sembled and adjusted, it may be placed in opera-.
tion. It may be placed in operation by merely
applying power to the pulley 24, whereupon the
upper and lower shafts l3,'20 will be simultane
ously operated to rotate the disintegrating rotor
andthe pumping elements. The material to be
reduced to pulp and subsequently conveyed may
be delivered to the machine through the hopper
25,,and as this material strikes the de?ecting
plate 29 it is thrown into the path of the rapidly
revolving cutter blades l4 and is carried toward
the grate'member IS. The cutter blades l4 co_
operating with the grate bars It quickly reduces
the admitted material to a pulp, and this pulp is
25 delivered through the slots of the screen mem
ber l5 by gravity into the trough portion l8 of
r the lower casing section 12.
Since the rapidly re
volving blades l4 may have imparted considerable
turbulence and whirling motion to the pulp, it is.
desirable to dispel this‘ motion before admitting
- the pulp to the conveyor screw2l, and the radial
?xed vanes l9 perform this function. The con
veyor screw 2| constantly withdraws the pulp as
produced, from within the trough formed by the
The packing
glands 31, 43, howeve'r, prevent leakage of liquid 10
from within the main casing during normal op
eration of the unit, and the auxiliary shaft sec
tion 38 may also be conveniently removed from '
the supporting base 21. It will thus be noted
that all portions of the unit are conveniently ac
cessible for inspection and removal, and the upper
‘ inclined plate 29 besides properly directing the in
coming material, serves as a safety plate'for pre
venting the operator from becoming injured.
From'the foregoing description it will be ap 20
parent ‘that the present invention provides a com
bined crusher and pump assembly which is ex
tremely simple and compact in construction and
which is ‘also highly e?icient in operation. The
combined mechanism may be transported and op
erated as a single unit, and may be maintained
in highly satisfactory. condition at all times. The
. mechanism can be manufactured and assembled '
at moderate cost since very few special castings
are required in its construction, and the improved 30
disintegrating rotor can" obviously be produced
entirely from standard sheet metal, bar and tubu
lar stock. This disintegrating rotor may also be
conveniently dismantled for removal of the blades,
lower casing portion I8, and urges the pulp and the grate assembly I5 is likewise formed of 35
toward the pump rotor or blades 22. ‘The blades standard bar stock. The pump structure is not
22 which are revolving in unison with the con
only eilicient in'operation, but can also be readily
veyor screw 2|, quickly remove the pulp from the manufactured and conveniently assembled or dis-“
path of the screw and deliver the same tangen _mantled.' The end closure 42 serves to permit
40 tially through the outlet pipe 26. The pulp is thus convenient access to the pump for removal of the 40
removed from the trough constantly as it is pro
rotor, and the‘ improved crusher and pump unit
duced by the crusher, and by virtue of the fact has been found extremely effectite in commercial
that the screw 2i and rotor blades 22‘have the operation, especially for use'in canning factories.
It should be understood that it is not desired to
same external diameter, the constantremoval of
45 the pulp is produced both quickly and effectively. limit the present invention to the exact details 45
In order to insure quicker and more complete of construction and to the precise mode of use‘
removal of the pulp from the path of operation herein shown and described, for various improve
of the conveyor. screw 2i, the pump rotor blades
22' may be made of slightly larger external diam
50 eter than'that of the screw 2 l, as shown'in Fig. 3,
and in that case gravity will aid in causing liquid
to ?ow from within the tubular casing section ll’
into the pump casing 41'.
It is to be observed that the entire machine
55 may be readily assembled and dismantled, and
ments within the scope of the claims may occur
to persons skilled in the art. While the improve
ment has been described especially in connection 50
with the treatment of tomatoes, its use is not
limited to such service, and the machine may
‘obviously be used for many other purposes.
1. In combination, a casing forming a disin 55
may also be conveniently manufactured. The ' tegrating chamber and a horizontal trough be
upper casing section H! may be readily removed neath said chamber, said trough being devoid of
agitating mechanism, means for reducing mate
from the intermediate casing section I l, by mere
ly releasing the upper clamping bolts 28, and the rial to a ?uent state within said chamber and for
upper bearing retainers 30 will then be likewise delivering the ?uent disintegrated material di 60
removed with the ‘casing Ill. The entire disinte
rectly into said trough, a tubular casing portion
grating rotor will then be freely accessible for communicating with an end of said trough later
inspection and removal, and when the crushing ally beyond said chamber, ?xed vanes extending
rotor is removed with its shaft I3, the pulley 24, inwardly of said tubular casing portion near said
trough, and means within said tubular casing be 65
65, fan gearing 23 and the bearings 3| may be read
ily removedlin an obvious, manner. ,Upon removal yond said vanes for withdrawing ?uent material
of the end collars 34, the cutter blades l4 and from said trough past said vanes». '
2. In combination, a casing forming a disin
the collars 33 may be slipped longitudinally from
tegrating chamber. and a horizontal trough be
an end of the shaft l3, thereby permitting con
70 venientreplacement of the cutters. After the neath said chamber, said trough being free from
disintegrating rotor has been removed, the'grate agitating structure, means for reducing mate
assembly l5 may also be readily removed by mere-i rial to a ?uent state within ‘said chamber and for
delivering the ?uentdisintegrated ‘material di
1y withdrawing the cap screws 36.
The pump assemblage may also be convenient
rectly into said trough, a tubular casing portion‘
75 ly removed for inspection and cleaning. When communicating ‘with said trough laterally beyond 75
said chamber, ?xed vanes extending radially into
said tubular casing at the junction thereof with
said trough, and a rotor within said tubular cas
ing beyond said vanes.
3. In combination, a casing forming a disin
tegrating chamber and an elongated longitudi
nally unobstructed trough beneath said chamber,
means for reducing material to a ?uent state
within said chamber and for delivering the ?uent
10 material by gravity directly into said trough, a
said shaft and rotor being longitudinally remov
able from within said trough and easing portion
though the end of the casing portion remote from
said trough.
6. In combination, a casing having a dlsin'te-i
grating device in an upper portion thereof'and an
elongated horizontal longitudinally unobstructed
trough beneath said device, a tubular casing por
tion extending away from an end of said trough
laterally beyond said device, ?at stationary v10
tubular casing portion extending away from an
end of said trough, a plurality of stationary vanes
vanes projecting into said casing portion near
. radiating into said tubular casing near said
tubular casing portion, and a rotor within said
trough, and a rotary conveyor screw operable in.
15 said tubular casing beyond said vanes.
4. In' combination, a casing forming a disin
tegrating chamber and an elongated longitudi
nally smooth trough, beneath said chamber,
means for reducing material to a ?uent state
20. within said chamber and for delivering the ?uent
material directly into said trough, a tubular cas
ing portion extending away from an end of said
trough, a plurality of stationary vanes radiating
into said tubular casing near said trough, a ro-7
25 tary conveyor screw operable in said tubularcas
ing beyond said vanes, and a pump rotor for
delivering ?uent material away from the dis
charge end of said conveyor.
_ 5. In combination, a casing forming a disin
30 tegrating chamber having a longitudinally un
obstructed ?uidcollecting trough at the bottom
thereof, disintegrating means within said cham
ber above said trough, a tubular casing portion
extending away from said trough and having
?xed vanes near the junction thereof‘ with thev
trough extending longitudinally of said tubular
casing portion, a rotor shaft extending through
said trough and through said casing portion, and
a_ ?uid impelling rotor carried by said shaft
40 within said casing portion beyond said vanes,
said trough and vextending longitudinally of said
tubular casing portion.
7. In combination, a casing having disinte
grating means ln an upper portion thereof and
an elongated horizontal longitudinallyv unob
structed trough beneath said means, ,a tubular
casing portion extending away from an end of
said trough laterally beyond said means, a shaft 20
extending longitudinally through said tubular
casing portion, stationary vanes projecting’ into
said casing portion and having their inner ends
spaced from said shaft, and a rotor carried by
said shaft within said tubular casing portion be 25
yond said vanes.
8. In combination, a casing having disintegrat
ing means therein and an elongated horizontal
longitudinally unobstructed trough beneathrsaid
means, a tubular casing portion extending'away 30
from an end of said trough laterally beyond said
means, a shaft disposed centrally within said~
tubular casing portion, stationary vanes sus
pended only irom said tubular casing portion and
having inner free ends extending toward and
spaced from said shaft, and means carried by
said shaft ,within said casing portion beyond said
vanes for withdrawing ?uent material from said
trough past said vanes.
' 7
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