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Jan. 7, 1947."
2,413,711
G. F. JEROME
POULTRY PICKING MACHINE
Filed Jan. 13, 1941
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Jan- 7, 1947-
e. F. JEROME
-
POULTRY PIGKING lmcnms
Filed Jan. 13, 1941
1
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2,413,711 '
'
2 Sheets-Sheet 2
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; 2,413,711
Patented Jan; 7, 1947
umrao STATES, PATENT orrics
.
'
Application January 13, 1941, Serial No. 374,271
(Cl. 17-111)
11 Claims.
l
The present invention relates to poultry pick
ing machines and particularly is directed toward
3 is a sectional view on the line 3-3 of
v
Fig.4 is an enlarged view, partly in section, of
a machine of this character wherein a plurality
' of resilient picking ?ngers is directed through the
feathers of poultry, such as chickens or the like,
to remove said feathers by means of friction be
the brackets and resihent picking ?ngers mount
ed thereon;
bled in order to permit'thorough' cleaning of the 10
.
.
I
Figs. 6 and '7 are views of‘ a modi?ed picking
provide a machine which easily may be disassem
7
-
ing a modi?ed manner of mounting the brackets;
and
tween the feathers and_the resilient ?ngers. A.
1 particular object of the present ‘invention is to
machine.
'
‘Fig. 5 is a fragmentary view of the disk show
ilnger.
‘
Referring now to the drawings, and particularly
to Figs. 1 and‘ 2 thereof, the present invention
contemplates a poultry picking machine compris
ing an exterior structural framework, a tank or
A chief objection to prior devices of this char
acter resides in the inability to disassemble the
various parts for ‘purposes of cleaning. As will
disposed within'the structural framework
be understood, the work performed by machines 15 hopper
and a removable hood 58 covering a portion of the _
‘ of this character results in the creation of a great
open top of the tank or hopper. The structural
deal of muss and ?lth which periodically must be
framework is rectangular in shape and includes
removed from the machine in order to maintain
corner uprights i0, which may be ordinary angle
a necessary standard of sanitation. The present
End cross-bars ii and I2, and side cross
invention contemplates a device having its struc 20 irons.
bars
13
and II extend between the corner uprights
tural framework disposed extemally' of the tank
l0 and together constitute part of the supporting
or hopper in which the picking process is carried
framework. A cross-member l 5 connects the side
out. The tank or hopper readily may be removed
members l3 at a spaced distance from the front
from the structural framework for purposes of
end
of the framework. Longitudinal cross-mem
cleaning or disinfecting. A removable hood also 25
bers l8, each spaced inwardly from a member l3,
is provided to con?ne the by-products of the
process as well as to provide for easy cleaning.
connect-the member l5 and the rear cross-meme '
I
Another object of the present invention is to
provide an improved means for mounting the
her, ll. Members ll, [5 and the two members
' i6 de?ne a rectangular opening in the top of the
resilient picking ?ngers. In carrying out this ob-'
structural framework.
ject, I provide a rotatable disk which carries a
framework are shown’ as angle-irons, although
All members of the above described structural
series of spaced peripheral brackets. Each brack
members of anyother equivalent cross-section
et has spaced projecting pegs which detachably
may be used if desired.
I
‘ . receive the resilient picking ?ngers. This open
The main tank or hopper i8 is substantially
construction of the picking ?nger unit permits 35 a rectangular box open on the top and on a portion
facility ‘of cleaning. With the general structure
of the bottom, the rearportion. The front por
as outlined above, it is a simple matter to direct
tion of the bottom of the hopper i8 is curved up- ' _
a stream of water into the interior of the machine
wardly as shown at I9 to‘ cooperate with the are
and with the help of a brush'to effectively wash _
the machine free of feathers and other by-prod-' 40 described by the picking ?ngers, as hereinafter
described.
ucts.
The-‘sides and ends of the tank or
hopper l8 have their upper portions bent out
A' further object of the present invention con
. wardly to form ?anges 20. The tank or hopper
templates an improvement in the contour and
i8 is of such a size that it may be inserted within
cross-section of the resilient picking ?ngers
the rectangular opening de?ned by member ‘IS,
45
whereby the effective life of the ?ngers is mate
the rear member LI and the members I6. The
rially increased.
.
‘
outwardly bent ?anges 20 are received on the said
Other features and advantages of _the present
members and support the tank or hopper in- posi
invention will appear more fully as the descrip
tion in the framework:
tion proceeds, reference being had to the accom
A removable box 22 is disposed immediately be
panying drawings wherein a preferred form of the 60 low the bottom opening in the tank or .hopper l8.
invention is shown.‘ It is to be understood that
The great bulk of the feathers removed from the
the drawings and description are. illustrative only
poultry accumulate in the box‘ 22 and may be
and are not to be taken as limiting the inven
I disposed of easily from time to time as necessary.
_ tion except in so far as it is limited by the claims.
In the drawings,
/
I
g
Fig. l is a side sectional view of a poultry pick
ing machine embodying the present invention
taken on the line l-I of Fig. 2;
Fig. 2 is a sectional view on the line ’ 2-2 of
Fig. 1;
55
Bearing. members 25 are oppositely secured to
- the cross-members ll just forward of the mid
points of the said members. A rotatable shaft 26
is journalled in the bearings 25 and extends
through the interior of the hopper l8. Suitable
holes are provided in the sides‘of the hopper to
2,413,711
receive the shaft. A pulley 21 is secured to the
shaft 26 between one of the bearings 25 and the
adjacent side of the hopper I8. The pulley is
shown on the right-hand end of the shaft in Fig.
2.
A suitable prime mover, such as an electric
motor 28, has its driving pulley 29 disposed di
rectly below the pulley 21.. An ordinary endless
belt 30 connects the two pulleys 21 and 29. As
a safety measure, a guard 3| encloses the pulleys and the belt.
»
At the midpoint of the shaft 26 within the
hopper I8 is located a disk 35 adapted to rotate
with the shaft 26. Sleeve members 35 on the
shaft 26 are connected with rivets 31 which ex
tend through suitable holes in the disk 35. The
sleeve members are secured to the shaft 26 by
means of set screws 38.
Oppositely disposed brackets 40 are secured to
‘ the disk at spaced pointsion' its periphery.
As
~tions 52 which are integral with the hood. These
shelf portions 52 comprise box-like structures
which extendforwardly from the front end of I
the hood for a portion of the distance to the
front end of the tank. From this point‘ to the
front end of the tank, the shelf structures incline
forwardly as shown at 53 and meet the cross
members l3.
Within the hood, the shelf mem
bers 52 merge» into inclined side portions 52a
10 which extend to the rear end of the hood. The‘
rear end and the side portions 52a of the‘ hood
have downward extensions 54 which are received
within thelupper edges of the tank I8. This
overlapping feature permits proper drainage of
water from the hood into the tank, as is neces
sary for’ purposes of effective cleaning.
A work-shelf 51 extends across the frame-work
on the cross-members _l l and I5. The poultry to
be plucked are placed on this table and from'
there moved into the path of the revolving pick
ing ?ngers. Side tables 58 may be hinged to
best shown in Fig. 4, the brackets 40 may be v20
secured to the disk by means of bolts or rivets 4!.
At spaced intervals along the horizontal arm of
the cross-members ’ l3 and supported in opera
the bracket 40 are ?nger receiving pegs 42. The
tive position by means of braces 59 which engage
‘pegs 42 are round in cross-section and are di
‘the lower cross-members I4.
vided into segments having sloping sides as shown 25
In
‘operation,
the
disk
rotates
in
the
direction
at 43. As best shown in Fig. 3, the pegs 42 on
indicated by the arrow in ‘Fig. _1. The operator
one set of brackets are staggered with respect
slides a fowl from the work-table 51 into the zone
to the pegs on adjacent brackets. Therefore, as
of the rotating picking ?ngers.‘ Su?icient fric
the disk and attached brackets are rotated, the
tion is developed between the picking ?ngers and
?ngers extending from the pegs 42 will succes 30 the feathers to effectively remove the feathers
sively contact all portions of the fowl being
from the fowl. The feathers as well as any blood
processed.
or other waste are carried by the rotating ?ngers
Resilient picking ?ngers 45 comprising cylin- ,
into the tank where most of such material is
drical pieces of rubber or the like are adapted
thrown oil’ into the opening to the removable box
to be received on the pegs 42. The interior of 35 22. The box, of course, may be emptied from
the ?nger at one end is divided into sloping sided
time to time as necessary with very little delay in
segments for cooperation with the sloping sided
the job. At the end of ‘a job the machine readily
segments 43 on the pegs. These cooperating cor
may be cleaned by directing a stream of water,
rugations securely retain the ?ngers in position
into the hood, tank and through the picking ?n
regardless of the stresses set up in the ?ngers by 40 ger assembly. In view of the fact that there is
operation of the machine.
no structure or other obstructions within the
The cross-section and contour of the picking
hood or tank, a thorough job of cleaning may be
end of the ?nger are features of great importance
effected in this manner. Periodicallyit may be
in the present invention. This end of the ?nger
desirable to disassemble the various parts of the
is provided with a series of spaced circumferen 45 machine and thoroughly sterilize them. Due to
' tial notches as shown at 46, 41, and 48 which pro
the simple construction set forth herein, it is a
vide in effect a plurality of substantially trun
simple matter to carry out such a step.
cated cone-like portions shown inv Fig. 4. The
In the modi?cation shown in Fig. 5, the ?nger
notch at 46 is of relatively short depth, the notch
mounting brackets 40a are inclined at an angle
at'4‘l is of relatively greater depth, while the notch 50 with the radii of the rotatable disk 35. The ?n
_ at 48 is of still greater depth. Therefore, the criti
ger mounting pegs carried by the brackets 40a
cal cross-section of the ?nger increases away
are thus inclined with respect to the radii of the
from the end. This construction prevents buck
arc of rotation of said brackets in a direction
ling or collapsing of the resilient ?nger when the
rearwardly to the direction of rotation of said
‘ end thereof is brought in contact with the resist
55 brackets. I have found that an angle of 30°-45°
ance afforded by the feathers. Notches of the
gives the best results. This construction, with
depth shown at 48 are necessary in order to most
the corresponding inclination of the picking ?n
effectively pluck the feathers from the poultry.
gers, results in more effective operation of the
However, if all the notches were made of that
picking ?ngers, particularly in’ the case of a fowl
depth the ?ngers would bend as they came in 80 being picked for cold storage purposes. As is
contact with the feathers and after repeated
well known in the art, fowl are subjected to a, hot
bending and recovery would soon structurally
water treatment before they are picked. The
fail. To avoid this difficulty I have successive
higher the temperature used, the softer the'skin
ly increased the cross-section of the ?nger at the
becomes and the easier the feathers may be re
notches, which cross-sections substantially in 65, moved. Too much softening of the skin, how
crease as the increase of bending moment set
up in the ?nger. This feature results in a great
ever, results inskin bruises during the picking
process, which bruises spoil the fowl for cold stor
ly increased life of the resilient picking ?ngers.
age purposes. Such bruises generally are not ob
A removable hood 50 is disposed over the tank
jectionable as far as immediate sale of the fowl
l8 throughout abortion of its length. The hood 70 is concerned. Temperatures of 140°-l45° often
50 is somewhat wider than the said tank and is
are used for commercial poultry (non-cold stor
adapted to be supported by the cross-members
age), while temperatures not in excess of 130"
l3 to which it is removably secured by bolts 5|.
generally are used in case of poultry picked for
The space between the sides of the tank i8 and
cold storage purposes.
the sides of the hood 50 is bridged by shelf por 75
In cases where the lower temperatures are used,
21,413,711
6. In a poultry picking machine, a rotatable
member to which is attached a plurality of resil
more "pul1” must be exerted on the ‘feathers
than in cases where the skin is made softer. BY
inclining the picking ?ngers in accordance with
this modi?cation, each of the gripping ?anges
ient picking ?ngers, said ?ngers each comprising
a cylinder of resilient material having spaced cir
cumferential notches at the portion thereof re- -
on a ?nger contacts the feathers with substan
mote from said member, the depth'of the most
' tially equal frictional engagement, thereby effect
remote
notch being the greatest and the depth
ing increased “pull” with a minimum impact.
of
the
other
notches decreasing as their distance
A modi?ed form of picking ?nger is shown in
from the free end of the cylinder increases.
Figs. 6 and 7. In this case the gripping ?anges
'7. In a poultry picking machine, a rotatable
increase in diameter away from the end of the 10 member to which is attached a plurality of resil
?nger. That is, ?ange 60 is of- least diameter,
ient picking ?ngers, said ?ngers each comprising
?ange BI is of somewhat greater diameter and
a cylinder of resilient material having a portion
?ange 62 is larger than ?ange 6|. This construc
including a plurality of spaced circumferential
tion is advantageous in that less pressure on the
?anges connected by inclined surfaces, said‘sur
picking ?nger is. required to bend the ?nger into
faces being inclined in a greater degree as the dis
an operating position whereby all the ?anges en
tance from the end of the cylinder decreases,
gage the feather. This ?nger advantageously
whereby the critical cross-section of the resilient
may be used with the inplined brackets shown in
material decreases toward the free end of the ‘
Fig. 5 in the case low temperature is used to con
dition the fowl for picking. In this way, contact
harshness between the ?nger and the feathers is
minimized with the result that the skin of the
2,0
cylinder.
1
8. In a. poultry picking machine of the char
acter described, a means for mounting periph
erally spaced rows of spaced ?ngers, said means
fowl suffers little or no injury.
'
Particular attention is directed to my disk, - including a rotatable disk- having oppositely dis
bracket and picking ?nger assembly. From the. posed peripherally spaced arms thereon extend
ing substantially at right angles to the plane of
standpoint of sanitation, this assembly _ readily
said disk, spaced pegs on said arms, said pegs
may be cleaned or sterilized. Secondly, the pick
being inclined with respect to the radius of the
ing ?ngers may be readily removed and replaced ,
on the brackets.
arc of rotation of said arms in a direction rear
This is important because cer
wardly to the-direction of rotation of said arms,
and resilient picking ?ngers mounted on said‘
tain replacements will become necessary regard
less of the effort I have made to produce long
wearing ?ngers. Thirdly, the progressive cross
sections I have provided in the ?ngers effectively
eliminate all collapsing of the ?ngers due to fric
pess-
cal body portion having at one end thereof a pick
ing portion and at the other end thereof a base
portion, the picking portion comprising a plural
ity of superimposed, substantially truncated cone
From the above ‘description, the advantages
and operationof my improved poultry picking
machine will ‘be readily apparent to those skilled
‘
' like portions mounted on the base portion, means
_
adjacent to the base of each truncated cone-like
Having thus‘described my invention, what I
portion serving as a feather engaging portion,
and the side walls of each cone-like portion being
claim as new and desire-to secure by Letters Pat
ent is:
disposed between adjacent feather engaging por
l. A poultry picking machine comprising a ro
tatable disk, a plurality of oppositely disposed
peripherally spaced arms on said disk and extend
ing substantially at right angles to the plane
thereof and spaced resilient picking ?ngers pro
" jecting from said arms.
2. A poultry picking machine comprising a ro
tatable ‘disk, a plurality of peripherally spaced
arms on said disk and spaced resilient picking
?ngers'projecting from said arms, said ?ngers
on one arm being staggered'with respect to the
?ngers on an adj acent arm.
v
3. In a poultry picking machine, a rotatable
disk, peripherally spaced arms oppositely extend
.
ing machine comprising a-substantially cylindria
tion set up during the picking process.
in this art. '
~
9. .A resilient picking ?nger for a poultry pick
tions.
'
10. A resilient picking ?nger for a poultry pick
ing machine comprising‘ a cylindrical body por
tion having at one end'thereof a picking portion
and at the other end thereof a base portion, the
picking portion comprising a plurality of super
imposed, substantially truncated cone-like por
tions mounted on the) base portion, the base of
each truncated cone-like portion projecting be
yond the walls of that part of the base portion
‘
that is adjacent to the picking portion and serv
55 ing as a ‘feather engaging portion, and the side
walls of the cone-like portion being disposed be
tween adjacent feather engaging portions.
ing from said disk substantially at right angles
to the plane thereof, spaced ?nger holding means
_
II. A resilient picking ?nger for a poultry pick
ing machine comprising a cylindrical body por
on said arms and resilient picking ?ngers remov
tion having at one end. thereof a. picking portion
60 and at the other end thereof a base portion, the
ably attached to said means.
4. In a poultry picking machine,'a rotatable
picking ?nger comprising a plurality of superim- _
disk, peripherally spaced arms oppositely extend
ing from said disk substantially at right angles
posed, substantially truncated cone-like portions
mounted on the base portion, means adjacent to
the base of each truncated cone-like portion serv- l
ing as a feather engaging portion and the side
to the plane thereof, spaced pegs on said arms,
said pegs on one arm being staggered with respect
to the pegs on an adjacent arm, and resilient‘
walls of the cone-like portion ‘being dispesed be
tween adjacent feather engaging portions, each
of said bases projecting beyond the walls of the
cone-like portion and beyond the walls of that
part of the base portion that is adjacent to the
picking ?ngers removably attached to said pegs.
5. In a poultry picking machine, a rotatable
disk, peripherally spaced arms oppositely extend
ing from said disk, spaced pegs on said arms, said
pegs having corrugated surfaces, and resilient
picking ?ngers removably attached to said pegs,
picking portion.
said picking ?ngers having interior corrugations
for cooperation with the corrugated surfaces of
‘ said Pegs.
_GEORGE F. ‘JEROME.
76
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