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Патент USA US3028903

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April 10, 1962
J. E. CANNELL
3,028,893
PRICKING MACHINES
Filed Feb. 12, 1958
3 Sheets-Sheet 1
/
M/V/S/VTOE’
JOHN EDWIN CANNELL
@M wawiq
A T TOR/VE Y8.
April 10, 1962
J. E. CANNELL
3,028,893
PRICKING MACHINES
Filed Feb, 12, 1958
3 Sheets-Sheet 2
0
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//VV£/V7'OR
JOHN EDWIN OANNELL
6%.‘??? 35;”, 14M wmzq
A T TOR/VEYS.
April 10, 1962
J. E. CANNELL
I 3,028,893
PRICKING MACHINES
Filed Feb. 12, 1958
3 Sheets-Sheet 3
46
I/VVE/VTOR
JOHN EDWIN CANNELL
BY
'
A T TORNEYS.
ire
3,028,893
ttes
Patented Apr. 10, 1962
2
prior'toibeingrpricked. Alternatively, the curved surface
‘3,028,893
ZJOhIIfEdWiH Cannell,‘~She?ield, Englaud,rassignor to
rUnilever; Limited, Portsunlight, England
:FiIedFehJIZ, 195,8,‘Ser.-No. 714,834
~PRICKING 'MACHINES
. Claimspriority, application. Great.- Britain. Feb; 18, .1957
:17 Claims. , (Cl. ,146-756)
of the‘pocket drum may move’past and in contact with a
curved stationary retaining plate, which retains thepulses
in their pockets until after they have passed the pin drum.
'Therpin drum axis may in this case be situated below that
of the pocket drum. The stationaryyplate must‘ be pro
vided with slots or apertures'through which the pins can
I pass.
This invention relates to pricking machines. and. in par
The means‘ for‘ feeding the pulses‘ to the pockets prefer
‘ticular ‘to machines 'for _ pricking small regularly sized 10 ably include a'feedhopper, the sidesof which terminate
articles such‘as pulses.
close to ormake contact with vthe curved surface of the
It‘ has been'foun'd advantageousvto rupture the, skins of
pulses such‘as peas or‘broa'd beansjbefore drying ,them.
pocket drum. ‘Assuming :that‘ the pocket vdrum is in
tended‘to be rotated‘in ‘an anti-clockwise direction, the
“feed hopper should be:situated in the '12 to.3 o’clock
{Pulses Lwhich havebeen so treatedrequire' less timeto pre
pare "for consumption.
15 :quarter.
“"Itis‘an object of the (present‘invention to provide a
"The pin 'drum’is'preferably 'situated‘in‘the 9 to '12
machine for pricking regularly sized articles such as pulses,
o’clockiquarter, the plane joining the centres of .the axes
and in particular a machine'for pricking peas ‘for the
'of the two drums making an angle between '30-'60" to'the
above purpose. It is a further object of the; present inven
.base of the machine and henceto the horizontal. Means
20 may be provided at the leading‘face of‘ the hopper'to pre
‘tion' to ‘provide ‘a: process ‘ for pricking, peas.
"The’present' inventionprovides a pricking machine com
vent peas being carried over byithe pocket drum unless
prising a' pin .‘drum andapocket drum mounted for rota
they are situated in apocket. These means may be con
stituted'by the‘leading‘faceextending to the curved sur
‘tion'about their~ respective axes, the curved surface of the
‘pin drum‘being’provided with aplurality of; pins .and that
‘face. of thejpocket .drum; in that case the'leading face
Of the‘ pocket drum‘ with ajplurality ofvpockets, and’ syn 25 should be made of resilient material. Preferably the
chronising means ‘for synchronising the rotation of the
lower portion of the leading face stops short of the curved 7
'drums,‘said“pins;andr pockets being so positioned on the
surface of the pocketfdrum or.is omitted ‘and a rotatable
drums and the synchronsing means being so arranged that
‘brush is providedjfor sweeping the, peas situated on top
eachpin‘isi'in virtual meshiwith a pocket astheypass
of the curved surface'ba'ckwardstowards the'hopper.
30 .Means are preferably provided for_removing pulses
through the‘plane joining the two axes.
“The‘present; invention also provides a method of, prick
ing peas'which comprises rotating. arpin. drum the curved
which have become impaled ‘during theirzpassage through
the plane. ‘These removinglmeans may be in the'form
of a.slotted plate. ‘Where'a curved retaining plate is used,
surface of whichv has a plurality of pins and a pocket drum
the curved surface of which has aplurality of pockets so
‘that'eachpin is. in virtual mesh with a pocket as they pass
tively, means maybe provided for retracting the pins into
‘through‘the plane joining the axes oflthe two drums,
‘placing peas in the pockets prior to. their passage, through
the, pin drum so that‘v the peas are forced oifthe pins‘by
the curvedsurface of that drum.
this may .also constitute‘the removing means. Alterna
‘Preferred examples of a pricking machine according
the, plane, pricking. theypeas withand‘irnpaling them on
to theyrpresent'invention designed 'for pricking peas will
’the pins ‘during'theirpassage throughpthe, plane, remov
ing ,thepeas impaled on therpinsi from the pockets by the 40 now be described withreference to the ‘accompanying
‘drawings in which:
‘movement of the pins. relative to'thepockets and then
removingthe peas from the pins.
‘FIG. ' 1- shows‘ a side elevation of‘ the machine,
vFIG. ‘2. shows a plan view of the machine ‘shown‘in
‘It will ,be understood that though the cross-sectional
FIG. 1,
area of the operative portion of the. pin, that, is they por
ftion which enters the,pulse to‘ pierce it, can be jvaried 45 "FIG. ‘3 shows diagrammatically an elevation of an al
vover a range while still enabling thevpulse to be pierced
ternative embodiment,
‘FIG. 14 shows diagrammatically aplan .viewrof a de
satisfactorily, *that area must .always .be considerably
tail of the embodimentshownin‘FIG. 3.
smaller :than vthe cross-sectional .area of the pulse and
‘hence .of ' the _ pocket.
‘Referring to‘FIGS. ‘.1 and 2, theiframe of'thetmachine
iPreferably‘theipins are pointed. ‘Preferably thepins 50 comprises a phase '1, vertical frame members ‘*2, ~3 and 4,
are radial.
At" least one ofpthe drums may‘ be conical or frusto
conical but it is preferred. that they are'bothcylindrical.
horizontal ‘frame members‘S and‘6, two pairs of cross
members‘7 and '8. Cross member ‘7 -makes an angle of
45 °" to‘ the base.
The‘ pocket drum"9 is 'secured‘to ‘a shaft ‘10 which ‘is
'that‘when the drums rotate, corresponding sectionsro 55 rotatably mounted in bearings ll’?xed to-cross ‘member
.The synchronising means ,arepreferably ,so arranged
‘tater ;at substantially . the‘ same: peripheral speed.
‘7.
A;pulley‘12 'is‘secured‘to shaft‘l'tl and 'a spur gear
wheel ‘13*to'aboss ‘of drum‘9. The curved surface of
TheLterm “meshing”'has been used to indicate that the
*pincooperates with a pocket, but without'thepin engag
'drum 9‘is provided ‘with-‘a plurality of, pockets 1'4 dis
ing the side of the pocket. The pulsesituatedin .a pocket
posed in straight rows which are'equispaced circumferen
may protrude above the curved. surface of the ‘pocket 60 tially around the pocket drum. v‘Thepockets'in‘each'row
drum. ‘Then, provided that the .pin entersthepea, there
is. no need for. it- to, penetrate so far that it also enters the
pocket. The term '“virtual meshing” has been used to
indicate thatthe pin need not enter thepocket.
'are'equispaced ‘from one another, any pocket of any one
row‘ lying onthe same circle as one pocket of each of‘the
other rows.
‘The pindrum “15 is rotatably mounted on. a fsha‘ft‘16
:The axis of the pin drum maypbe situated at the same 65 which issecured in supports 17 ?xed to cross members
level as or above theaxis of the, pocket drum. ‘In that
*7. A spurgear Wheel ,18, which is in mesh with gear
case, the pulses are retained .inatheirpo'ckets' bygravity
wheel .13 issecured to. a'jlboss of the drum 15. 'The
3,028,893
3
curved surface of drum 15 is provided with a plurality of
pins 19 disposed in straight rows which are equispaced
circumferentially around the pin drum.
The pins in
A,
wards the hopper by the brush 26 which is also rotated
in an anti-clockwise direction.
As a row of pockets approaches the plane joining the
two shafts, a row of pins which has previously been
each row are equispaced circumferentially around the
pin drum. The pins in each row are equispaced from one
pushed outwards, enters the correspondingly approaching
another, any pin of any one row lying on the same circle
as one pin of each of the other rows. The peripheral
distance between the centre lines of rows of pockets sub
row of pockets and punctures the peas therein. The
peas will remain impaled on the pins when the pins move
out of engagement with the pockets. A chute 41 is situ
ated below drum 15 to guide the peas to a container as
stantially equals that between rows of pins, and the dis
tance between pockets in any row equals that between 10 they are forced off the pins when the latter are retracted.
It will be noted that any pea which has not become im
pins in any row. The pitch circle diameters of the gear
paled on a pin (for example because the pea is of an
wheels are such that the pins of any row mesh with the
cessively soft texture or because it is undersized) will not
pockets of any row as those rows pass through the plane
be deposited into chute 41 but will fall out of the pocket
joining the axes of the drums.
The pins 19 project through holes in the curved sur~ 15 as the pocket drum continues to rotate, into a tray (not
face of drum 15. Each row of pins is secured to a bar
shown) placed below the drum.
In the alternative embodiment shown in FIGS. 3 and
(not shown) which rotates with the curved surface. Each
4, the pocket drum 42 is identical to pocket drum 9
bar is provided with a follower which co-operates with
shown in FIGS. 1 and 2. The pins 43 of pin drum 44 are,
a cam (not shown) secured to the stationary shaft to
cause the bar to move radially towards and away from 20 however, ?xed relative to the curved surface of the pin
drum instead of being movable radially. The pins 43
the curved surface. The arrangement is such that the
pass through a stationary slightly curved plate 45 having
cam pushes the follower and hence the bar outwards,
slots 46 before entering the pockets, and the peas subse
thereby causing the pins to project through the curved
quently impaled on the pins are removed therefrom when
surface of the pin drum. This is similar to an arrange
ment illustrated in U.S. Patents Nos. 457,744 and 25 the pin passes out of the plate.
I claim:
494,105.
1. A pricking machine comprising a pin drum and a
The machine is provided with a supply hopper 20
pocket drum mounted for rotation about parallel axes,
which is situated above a vibratory feeder 21. For the
with their peripheries moving in close proximity to one
sake of clarity, supply hopper 20 has been omitted from
FIG. 2. Vibratory feeder 21 feeds a feed hopper 22 30 another, a plurality of pins carried on said pin drum in
a predetermined pattern along its periphery, a plurality
having sides 23, 24 and 25, the lower edges of which
of pockets in the periphery of said pocket drum ar
almost make contact with the curved surface of the lower
ranged in a predetermined pattern, the pattern of said
drum 9.
pins corresponding to the pattern of said pockets, with
A cylindrical brush 26 is secured to a shaft 27 ro
tatably mounted in bearings 28 ?xed to the horizontal 35 each pin entering a pocket in the portion of the periph~
cries in close proximity to one another and then with
frame members. A pulley 29 is also secured to the
drawing therefrom, means for depositing pulses individu
shaft 27.
ally in said pockets prior to the entry of said pins into
The machine is powered by an electric motor 30 which
said pocket, and drive means connected between said
drives a reduction gear box 31. The output shaft 32 of
the reduction gear has pulleys 33 and 34 secured to it. 40 drums for synchronising the rotation of corresponding
peripheral sections of the drum.
Pulley 33 drives the pulley 12 by means of a belt 35.
2. A pricking machine as claimed in claim 1, in
Pulley 34 drives a pulley 36 secured to a shaft 37 rotat
which the drive means includes means for rotating cor
ably mounted in bearings 38 secured to the horizontal
responding sections of each drum at substantially the
members. Also secured to shaft 37 is a further pulley
same peripheral speed.
39 which drives pulley 29 by means of belt 40. For the
3. A pricking machine as claimed in claim 1, in which
sake of clarity, the belts have been omitted from FIG. 2.
the pins extend radially from the pin drum.
In the particular embodiment described, the diameter
4. A pricking machine comprising a cylindrical pin
of the pocket drum 9 was 21%"; the diameter of the
drum and a cylindrical pocket drum mounted for rota
pockets was 1/2” and their full diameter depth .225”.
There were 72 rows of pockets at 5° intervals, each row 50 tion about parallel axes with their peripheries moving in
close proximity to each other, a plurality of pins carried
having 16 pockets at 916" pitch. The pitch circle diam
on said pin drum in a predetermined pattern along its
eter of gear wheel 13 was also 21%”. The curved sur
periphery, a plurality of pockets in the periphery of said
face of the pin drum 15 was constituted by a series of
pocket drum arranged in a pattern corresponding to that
?at slats. The diameter of the pin drum was 14" across
?ats. The pitch circle diameter of gear wheel 18 was 55 of said pins, with the pins of the one drum successively
entering and then leaving the pockets of the pocket drum
141/2". The maximum projection of the pins was 1/2”.
where the drum peripheries are closest, means for de
Their diameter was 1%.!’ and their exposed end was ta
positing a pulse in each of said pockets where they be
pered to a point having an inclusive angle of 20°.
come impaled on said pins that enter said pockets, and
Thus the peripheral speed of the pocket drum equalled
the peripheral speed of the pins measured at a point flush 60 drive means connected between said drums for operat
ing them at the same peripheral speeds.
with the curved surface of the pocket drum. Thus the
5. A pricking machine for pricking pulses comprising
peripheral speed of the pin drum was very slightly less
a pin drum and a pocket drum mounted for rotation about
than that of the pocket drum but as the distance between
parallel axes with their peripheries in close proximity to
the curved surfaces of the two drums was small com
pared with their radii, the peripheral speeds of the drums 65 one another, a plurality of pins extending radially from
the periphery of said pin drum, a plurality of pockets
were substantially equal.
in the periphery of said pocket drum, drive means con
In operation, the supply hopper 20 supplies peas to
nected between said drums for synchronising the rota
the vibratory feeder 21 which feeds them to feed hopper
tion of the drums, said pins and said pockets arranged
22. The vibratory feeder is adjusted to maintain the
level of peas in feed hopper 22 constant. Drum 9 is ro 70 in corresponding patterns on their respective drums with
each pin entering and leaving a pocket as it passes through
tated anti-clockwise and the pockets in its curved sur
the plane containing the two axes, means for depositing
face, which surface constitutes the ?oor of feed hopper
a pulse in each of said pockets for piercing by a pin en
22, become ?lled with peas, one in each pocket. Any
tering and then leaving that pocket, and means for re
peas which—though not situated in a pocket-are car
ried upwards by the curved surface, are brushed back to 75 moving pulses pierced by said pins.
753,028,893
e
16. A pricking machine as set-forth in claim .5, in
which theremoving means comprisesrazslotted-plate dis
:posedfbetween said drums with itsaslots‘.alignedewith the
ggpa-ths‘of movement of the, pins, andthrough the. slots'of
"which the pins enter and then leave during rotationrof
'z'said drums, the plate diverging fromrsaid pin :drum “as
the pins leave said pockets and pushing pulses impaled
on the pins from the pins after the pins leave the pockets.
the _.pin drurruso that pulses impaledon ,\the,pinsrare
forced o?i'by contact lwiththe curved surface. of .thepin
drum.
12. A,,pr-icking machine
claimed-inwlaim l1 fur
ther comprising ..a feed hopper having .sides that ter
minate close to ‘the surface of‘the‘p'o'c'ket drum, a dis
~' charge ?portion of said . feed hopper izpositioned = adjacent
the surface of the pocket drum, and a rotatable brush
mounted at the top of the pocket drum to sweep pulses
7. A pricking machine as set forth in claim 5, in
which the removing means comprises means for retract 10 toward the hopper.
13. A method of pricking peas which comprises the
ing ‘the pins into the pin drum so that pulses impaled on
steps of conveying a plurality of peas along a predeter
the pins are forced oif by contact with the curved sur
mined path, progressively impaling the peas on pins dur
face of the pin drum.
ing their travel in said path, and then progressively re
8. A pricking machine comprising a cylindrical pin
drum and a cylindrical pocket drum mounted for rota 15 moving the impaled peas from said pins during their fur
ther travel along said path.
tion about parallel axes, a plurality of pins disposed in
14. A method of pricking pulses comprising the steps
a plurality of straight rows with the rows equally spaced
of moving a plurality of pockets progressively along a
in a pattern around the circumference of the pin drum,
selected path, placing pulses individually in said pockets
each pin of each row lying in the same plane transverse
to the axis of the drum as the corresponding pins in the 20 at one location in said path, progressively pricking said
pulses with pins at a later location in said path, and then
other rows, a plurality of pockets arranged about the
removing the pulses from said pins at a still later loca
surface of the pocket drum in a pattern corresponding
tion in said path.
'
to that of said pins with each pin entering and then leav
15. A pricking machine for pricking pulses comprising
ing the pockets during rotation of said drums, means 25 a pin drum mounted for rotation about a ?rst axis, a plu
for depositing a pulse in each of said pockets for pierc
rality of pins extending radially from the periphery of said
ing by a pin that enters said pocket, and drive means in
pin drum in a predetermined pattern, a pocket drum
terconnecting said drums for causing rotation of the
mounted for rotation about a second axis, a plurality of
drums at the same peripheral speeds.
pockets in the periphery of said Pocket drum arranged
9. A pricking machine as set forth in claim 8, in which 30 in a predetermined pattern, the pattern of said pins and
the drive means includes means which rotate correspond
ing sections of the drums at substantially the same periph
the pattern of said pockets being arranged in correspond
ing patterns on their respective drums with each pin enter
eral speed.
ing and leaving a pocket as it passes through said ?rst
10. A pricking machine comprising a cylindrical pin
and second axes, each of said pins having a substantially
drum and a cylindrical pocket drum mounted for rota 35 smaller cross-section than that of said pocket, means for
tion about parallel axes, a plurality of pins disposed radi
depositing a pulse in each of said pockets for piercing by
ally on the peripheral surface of said pin drum in a plu
rality of straight rows with the rows equally spaced cir
cumferentially around the pin drum, each pin of each
a pin entering and then leaving that pocket, and drive
row lying in the same plane transverse to the axes of the 40
means connected between said drums for operating them
at the peripheral speeds.
16. A pricking machine for pricking pulses comprising
pin drum, a plurality of pockets in the periphery of said
a pin drum and a pocket drum mounted for rotation about
pocket drum disposed in a pattern corresponding to that
of the pins, drive means interconnecting said drums for
synchronizing the rotation of the drums at the same
parallel axes with their peripheries moving in close proxi
mity to each other, the axis of said pin drum being above
a horizontal plane through the axis of said pocket drum,
peripheral speed of the drums, with said pins entering 45 a plurality of pins carried on said pin drum in a pre
drums rotate as the pins approach, pass through, and
determined pattern along its periphery, a plurality of
pockets in the periphery of said pocket drum arranged
then leave a plane joining the axes of the drums, means
in a predetermined pattern, the pattern of said pins and
said drums and having a plurality of slots, the slots be
ing aligned with and in the paths of movement of the
pulse in each of said pockets for piercing by a pin, drive
paled on the pins are removed by the plate during the
passage of the pins through it.
11. A pricking machine comprising a cylindrical pin
the direction of rotation of contiguous sections of the
drums being downwardly, and means for removing pulses
that remain on said pins after piercing, the pulses remain
spaced circumferentially around the pin drum, the pins
17. A pricking machine for pricking pulses comprising
and then leaving correspondingly disposed pockets as the
the pattern of said pockets being arranged in corre
for depositing a pulse in each of said pockets approaching
said plane for piercing by a pin, and pulse removing means 60 sponding patterns on their respective drums with each
pin protruding into a pocket when in a plane passing
comprising a plate disposed between the peripheries of
through the axis of said drums, means for depositing a
means connected between said drums for synchonizing the
pins with the plate diverging from the pin drum after
the pins pass through said plane, whereby pulses im 55 rotation of corresponding peripheral sections of the drums,
ing in pockets after piercing being removed by gravity at
drum and a cylindrical pocket drum mounted for rota
approximately the lowermost point of travel of the sur
60
tion about their respective axes, a plurality of pins mount
face of said pocket drum.
ed on said pin drum in a plurality of straight rows equally
a pin drum and a pocket drum mounted for rotation
about parallel axes, a plurality of pins carried on said
pin of any row lying on the same circle as one pin of
each of the other rows, a plurality of pockets disposed on 65 pin drum in a predetermined pattern, a plurality of
pockets in the periphery of said pockets drum arranged
said pocket drum in a pattern similar to said pins, drive
in a predetermined pattern, said plurality of pins being
means connected to said drums so that the peripheral
arranged in a pattern whereby a single pin is in alignment
in each row being spaced equally from one another, any
speeds of the drums are substantially equal, said pins
with a corresponding pocket at at least one portion of the
and pockets being arranged in a corresponding pattern on 70 rotational travel of said drums, drive means connected
their respective drums with each pin entering and leav
between said drums for synchronizing the peripheral
ing va pocket as it passes through the plane containing
speeds of said drums, means for depositing a pluse in each
the two axes, means for depositing a pulse in each of
of said pockets for piercing by a pin entering and then
said pockets for piercing by a pin entering and then leav
leaving that pocket, and means for removing pulses that
ing that pocket, and means for retracting the pins into 76 remain on said pins after being pierced by said pins, the
3,028,893
'7
8
pulses remaining in said pockets after piercing being removed from said pockets by gravity.
References Cited in the ?le of this patent
UNITED STATES PATENTS
457,744
Lispenard ___________ _. Aug. 11, 1891
949,105
804,799
5
Lispenard ____________ .._ Mar. 21, 1893
Edison ______________ -_ Nov. 14, 1905
2,083,370
Greulich _____________ __ June 8, 1937
2,742,068
2,754,581
Metcalf _____________ _.. Apr. 17, 1956
Thomas ------------- -_ July 17, 1956
2,783,803
Weckel et al. _________ __ Mar. 5, 1957
UNITED STATES PATENT OFFICE
CERTIFICATE OF CORRECTION
Patent Noo 3,028,893
April 10, 1962
John Edwin Cannell
It is hereby certified that error appears in the above numbered put
out requiring correction and that the said Letters Patent should read as
corrected below.
"Column 6'», _ line 52, for "axis" read -— ax'es ——; line 54,
'f'or
synchonlzlng" read ~— synchronizing ——; line 66, for
pockets ', second occurrence, read —— pocket v~--; column 8,
line 1,
for "949, 105" read —— 494 , 105 ~-.
Signed and sealed this 14th day of August 1962.
(SEAL)
Atteet:
ERNEST W. SWIDER
Attesting Officer
DAVID L. LADD
Commissioner of Patents
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