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Патент USA US2412951

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De@ 24» 1946-
J. J. cARMo
`
"
2,412,951
POULTRY FEEDER
Filed Aug. 6, 1943.
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Jahn J C'armo
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Dec. 24, 1946.
,
J. J. CARM@
2,412,951
POULTRY FEEDER
Filed Aug. 6, 1945
~
5 Sheets-Shea?I 2
46
Snventor
Dec. 24, 1946.
J. J. cARMo
2,412,951
POULTRY FEEDER
Filed Aug. 6, `1943
3 Sheets-Sheet 3.
Jbhn J Carrillo
‘
`
'attorney
Patented Dec. 24, 1946
` 2,412,951
UNITED STATES PATENT. GFFICE
2,412,951
POULTRY FEEDER
John J. Carmo, Billerica, Mass.
Application August 6, 1943, serial No. 497,607
14 Claims.
l
(C1. 11e-_55)
Fig. 1l is a perspective of still another type of
This invention relates to poultry feeders and
is concerned particularly with the provision of
agitator of greater depth.
means that may be operated by the birds them
selves to induce suitable flow of chicken feed from
Fig. 11.
the hopper to the trough.
'
.
Fig. 12 is a, plan view of the agitator shown in
.
.
Fig. 13 is a cross section of a modified form of
hopper.
.
It is well known that poultry prefer to eat fresh
Fig. 14 is a perspective View broken away _in
feed rather than stale. Therefore, it is desirable
part of the lower portion of a feeder of the gen
that the operation of the feeder be such that Athe
eral type shown in Fig, 13, with the hopper sup
feed presented to the birds be a, continuously
by its ends.
’
replenished'thin layer of fresh feed rather than 10 ported
Fig. 15 is a vertical section on the line I5-l5
a thick layer, of which the under part soon be
of Fig. 13, enlarged and broken away in part,
comes stale, to affect adversely the entireV feed
showing the general formation of the construc
supply.
’
tion of Fig. 13, but with the hopper supported by
One of _the objects of this invention is the pro
the ends thereof rather than by the legs as shown
vision of a. construction in which ,the relationship
in Fig. 13.
.
between the hopper and the bottom of the trough
Referring yto Figs 1 and 2, there is shown a
is such that feed in the hopper will not flow of
its own accord to the trough sides, but on the
other hand, can be induced to ñow in the desired
trough 2, rectangular in shape, having side walls
4, end walls 6, and bottom 8. Positionedover
the trough is a hopper Hl having atthe top a
amount through movement of a special agitator 20 hinged cover l2 and an open bottom >I4. The
blade which will be more particularly disclosed
ends of the hopper are denoted at it andthe
sides at I8.
'
`
Another object of the invention is the provi
As can be seen in Figs. 3,4, and 5, the sides i8
sion of appropriate means operable by the birds
turn inwardly at 2i] to form a reduced opening
themselves for causing movement of the agitator 25 at I4 a suitable distance above the trough bot
hereafter.
.
,
blade to an extent suñicient to insure the desired
flow of the feed.
These and other objects of the invention will
tom 8.
.
vAny suitable means for supporting the hopper
I0 with respect to the trough may be used. lOne
become more apparent as the description pro
convenient type is shown in the form of legsr22
ceeds with the aid of the accompanying drawings, 30 (see Fig. 5) located at the four corners of the
in which
hopper.
Fig. 1 is a horizontal section on the line l-l, of
The spacing of the hopper from the trough bot
Fig. 2.
tom is determined by the characteristics of the
Fig. 2 is a vertical section on the line 2-2 of
feed that is to be used therewith. If the hopper
35 opening is too close to the trough bottom, the
Figs. 1 and 3.
l
Fig. 3 is an end view of Figs. l and 2.
feed will not flow a suitable distance toward the
Fig. 4 is a cross-section on the line 4-4 of
sides of the trough, even though disturbed by
Fig, 2.
the agitator means herein provided. On the other
Fig. 5 is a cross-section on the line 5_5 of
hand, if the hopper isl too far above the trough
40
Fig. 6.
bottom, then the feed, when agitated> (and in
Fig. 6 is a cross-section on the'line 6--6 of
some cases, without agitation) will flow in exces
Fig. 5.
'
sive amounts toward the trough sides, which will
Fig. '7 is an end View similar to l'f‘ig. 3 and dis
result
in the accumulation of stale feed at the
closing a modified device against which the bird
45 trough bottom.
may push.
Accordingly, the distance of the hopper from
Fig. 8 is a side view, disclosing the agitator
- moving mechanism shown in Fig. 7 .
Fig. 9 is a perspective of one type of feed agi
tator.
_ Fig. 10 is a. perspective of a modified type hav
ing a considerably thickerblade.
.
the trough bottom must be experimentally deter
mined through the operation of the particular
agitator and the feed that is to be used.
,
The agitator is of peculiar and novel construc
50 tion and is designed to rest on or be positioned
2,412,951
3
4
very close to the lbottom of the trough. The move
ment of the agitator, one form of which is shown
at 24 in Figs. 1 to 6, is longitudinal, as distin
guished from transverse. The special construc
tion of the agitator blade results in a suñicient
lateral force being exerted on those particles of
the feed close to the bottom to result in a steady
although slow movement of the feed particles
downward and laterally toward the trough sides
that is engaged by the advancing edge laterally, .
and at the same time immediately behind the fol
lowing edge there develops a partial void into
which feed from above immediately falls.
When the movement of the blade is reversed,
the feed that has just descended into the voids
is then wedged out sideways and additional feed
falls into the newly created voids behind the
following edges which were previously the ad
vancing edges. This action is repeated again and
until a, sufficient accumulation of feed in the
trough has developed that will present such re
again, gradually forcing feed laterally into the
trough. Finally, however, there comes a time
when the resistance of the feed that has accumu
sistance to lateral flow that further continued
movement of the agitator bar will be unable to
cause further outward flow of feed.
¿lated in the trough is sufficiently great so that
This condition will prevail until the birds have 15 further movement of the agitatorïblade is ineffec
consumed a suñîcient quantity of the feed to re
tual.
duce the lateral resistance, whereupon the con
tinuing movement of the agitator will 1re-estab,
»pleQe
lish lateral flow to build the feed level again up
to the predetermined degree.
Only after some of the feed has been con
sumed by the birds, does further lateral flow take
vIt will be apparent that once the principle of
the present agitator is disclosed, further modifi
`
One form of agitator bar Awhich I `have _found
particularly effective is shown in plan in Figs. 1
and 6, in side elevation in Fig. 2, in sectional
end elevation in Figs. 4 and 5, and in perspective
in Fig. 9.
This construction plainlyshown in Fig. .9 con.
sists of a thin sheet of material l26 Acut along jits
cations at o_nce 4suggest themselves. Two such
modified forms are shown in Figs. 10 and 11.
gFig. 1,0_is similar in plan view to Fig. 9, the dif
ference residing, however, in the thickness of the
25
blade, ~as kshown at `39. This `construction results
Yin an increased lateral movement of feed and
_maybe employednndersuch circumstances as re
edges in saw-tooth fashion, as at 28. If the blade
quire the movement of a V,different type of feed
-26 is sufliciently stiff to stand longitudinal pres
or the movement of the feed .through a ygreater
sure without buckling, then no additional support 30 distance or in greaterouantity.
A
is needed. However, in ,order to insure rigidity
Figs.
11
and
12
_disclose
another
form of agi
of the thin metal, I prefer to have a supporting
tator which utilizes the same principle as those
rod 3,0 to which the blade 25 is affixed _.on the
shown in Figs. 9 .and V10. It >differs in this re
under side.
`
'
spect, however, that -the depth is considerably
Blade 26 preferably rests `directly on the bot
tom 8 of vthe trough’ although it might'be ksup,
ported a very short distance thereabove and still
produce the'same results.
s
35
greater but the angularìly of the teeth is reduced.
By this arrangement, the feed is moved a less
distance sideways, but in greater volume. The
'
_resulting effect is the same, however.
One .means Ífor inducing longitudinal move
ment of the agitator is provided through the use 40 In Figs. 5 and 6, and 7 _and 8, are shown two
other constructions that are capable of operation
of the mechanism shownin Figs. 1 to 4. This ar
.by the birds to cause oscillating longitudinal
rangement is capable of 4being :operated `by `-Vbirds
themselves. The construction consists of Ia pair
of stiffinverted V-shape wires 32, the lower inner
movement of the agitator.
In Figs. 5 and 6 a bar 40 >extends crosswise of
the trough, resting at the Abottom of slots 42. The
outer .ends of bar .40 turn downwardly at 44 and
endsof which are hingedly connected with bar
30 at `34 by cross ‘bar 35. ` Part .way >up the'inner
legs of members 32 ‘engagement- isA made with
have connected at the ends thereof platforms 46.
the “meer edge ef end Well .6 et Se, “thier-peinte
o_f _contact act Aas fulcrums. The outer legs of
member 32 have ,connected at their lowerÍends'a
platform
38.
Y
'
`
.
s'
50
s
When the agitator Per ¿24 _is et the right ee in
Figs. 1 and ¿2, :he right-handÍplatform 38 will be
raised and away from the‘ri‘ght-ha‘?d end 6, while ,
the ieftlhandîplatfo?mss ivi-11 ~15e 'down and 'close
tothe leftlhand end 6. Obviouslyfif a bird lhops
on right-hand platform 38, the platform will‘be
4depressed and agitator bar 24 will be moveditothe
left. Thereafter, if a bird steps on the left-hand
platform 38, the agitator bar will be inovedto
the fight „Since it is Weil ,known that VChickens
gathered about e ,feeel treu-,eh «Wi-11 -eentinuellystep
en and .0g any Platforms associated therewith.
the result ef this veeriei1‘1.1ei>i<_>11 is. thetthe agitator
leer _ie repeatedly meved beek end-formel1 the
meneer jest .deseribeel-
'
Ir-f the hopper has feed therein, the repeated
longitudinal movement ,of agitator bar 24 will
cause gradual lateral movement of the feed as
heretofore mentioned. The reason for this
movement is believed to be as follows: With the
bar stationary, >feed particles will fill Athe saw,
tooth spaces 28. When the bar is moved in one
direction, the forward _edges of the saw teeth act
as wedges and drive a certain amount of the feed
_At vthe center of bar 4I! depends a ñnger 48 which
?ts Within _an lopening 50 .o_f a lmember 52 which
is connected to the agitator bar 24. It will be
understood, of course, that the agitator bar may
be any one of the several forms disclosed or any
yeeeivaleni .thereof`
When birds nop on the parfums .46, the latter
will lbe caused to tilt back Vand forth, thus moving
55 finger 48 correspondingly to cause repeated longi
tudinal v,oscillations of agitator bar 24. The
movement of platforms 46 may be limited by Vthe
use o_f suitable stops (not shown) or by _engage
ment of the end of the agitator bar with the end
60 Wall 6 of the trough.
Another construction which may be operated
by birds is shown in Figs. '7 and 8. It has been
experimentally determined overa long period of
time that chickens, in their desire to reach food,
will voluntarily insert _their heads through yoke
like structures such as shown in Figs. 7 and 8
and >can press thereagainst with considerable
¿f_orce’.
By arranging the leverage, it is possible for a
chicken to exert enough force against the yoke to
move an agitator bar of the type described a suf- '
ficient distance to bring about .the necessary iiow
of feed.
'The details of this construction shown in Figs.
7 and 3 are as follows, Angles 5.6 support a shaft
2,412,951
58 which has extending upwardly therefrom an
inverted U-shaped yoke 60. Across the yoke a
short distance up from shaft 58 is a cross bar 62.
Connected to this cross bar and shaft 58 is a lever
-arm 64 which extends below shaft 58. The lower
end of lever arm B4 is pivotally connected at 58
to the end of agitator bar 68, which extends
through both ends 6 of the trough. It will be
understood that agitator bar 68 is likewise of a
type heretofore described and is designed to agi
tate the feed upon being suitably oscillated in a
longitudinal direction.
_
On referring to Fig. 8, it will be observed that
when the left-hand yoke 68 leans to the right
6
88. The hopper is supported in any suitable man
ner over trough 88. One convenient method may
be to mount it on legs 90 and 92 or the ends of
the hopper may extend downwardly to form sup
ports as at 93 in Fig. 14.
> In the constructions previously described, the
longitudinal space beneath the hopper was en
tirely open so that the feed could flow in the de
sired amounts laterally toward the edge of the
trough. In some cases, however, it is desirable
that the trough be much narrower or formed in
a shape such as shown in Fig. 13. If a trough
of this character is used, the feed when agitated
in the manner heretofore described will flow out
wardly in the usual manner, but because of the
«against left-hand end 6 as shown, agitator bar 15
limited width of trough it may pile up to a pre
68 will be drawn to the left, while the right-hand
determined but somewhat greater depth. If the
yoke 60 will be swung correspondingly to the right
depth is excessive, the birds may eat from the top
'away from the right-hand end 6. With the mech
layer only.
anism in this position, a bird will shortly place
Accordingly, with a narrow trough or one
its head through right-hand yoke 60 and on 20 shaped as in Fig. 13, I have found it desirable to
p-ressing thereagainst will cause movement of
incorporate baiiies 94 and 88 which provide the
agitator bar 6B to the right and left-hand yoke
dual result of additionally restraining the outward
60 will swing to the left.
flow of feed and limiting .the exposed surface
As long Ias there are birds in the vicinity of the
area.
trough, continued oscillation of'agitator bar 68
It Will be noted in Figs. 14 .and 15 that the baf
is assured. Since it is only necessary that the
ñes 94 and 95 are in the form of hinged lplates or
agitator bar move a limited distance in each di
sheets which extend downwardly and outwardly
rection, the distance between shaft 58 and piv
from the lower longitudinal edges of the hopper
otal connection 66 may be small so that the nec
80. The hinge for baffle 94 is indicated at 98
essary leverage to move the agitator may be 30 and the hinge for baille 86 is indicated at |88.
easily obtained.
'Il'he lower portion of each baille is cut away in
A further feature of my invention is disclosed
part as at |82 in baille 94 and 4at |84 in baille 86.
in Figs. 4 and 5. Therein is shown a form of
It is through these cut away areas that the feed
grillwork which accomplishes the dual result of
is exposed. The location of the cut -away `area
permitting easy feeding, while at the same time
with respect .to the edges of the trough is such
rendering it impossible for the birds to bill feed
that the birds can easily reach the feed.
from the trough.
At the same time, however, the baille Provides
This construction contemplates an open-mesh
means for limiting the amount of feed exposed so
grill -consisting of crosswise wires 10 and longi
that the exposed surface layers will be eaten be
tudinal wires 12. The innermost longitudinal 40 fore they have a chance to become stale. The
wire on each side is supported by hooks 'i4 which
shape of the cut away areas may be varied in ac
may be conveniently spaced along the bottom
cordance with the width of .the trough, the slope
edge of the hopper. Crosswise wires 18, however,
of the bailles yand the number of birds that will
are not straight, but rather are concave up
feed at the trough in question.
wardly. By this arrangement, the portions of the
While the baffles have been shown as hingedly
grill close to the sides cf the trough are at such
connected to the lower longitudinal edges of the
`a fiat angle that the feed will be very close to
hopper, they may, if preferred, be rigidly ccn
the level thereof or even in some cases may slight
ly cover the bars. At the inner part, however,
where the birds are not so likely to feed, the dis
tance between the grill and the feed will be in
creasingly greater. This .construction not only
nected thereto.
I
l
Extending longitudinal under` the hopper open
50 ing is the agitator which has already been de
scribed. The agitator in Figs. 13, 14 .and l5 is
indicated >at |86 and |08. |88 is the supporting
facilitates feeding but is also an improvement
bar and |88 is the saw tooth blade. The agitator
over thestraight grillwork as the resistance to
passes under .the hopper and-.through the shallow
the ñow of feed from the hopper is changed to 55 entrance way ||8 which is small enough to pre
such an extent that the feed moves more freely
vent any substantial loss cf feed.
and evenly. The grillwork may likewise extend
In Fig. l5 it will be noted that the agitator
across the ends of the trough, as shown in Figs.
bar Hi8k is connected in the manner already de
1, 2 and 6.
'
scribed with respect to Figs. 1 and 2, to platform
A further modification of my feeder is shown
il() on which the birds-step to induce periodic
in Figs. 13, 14 and 15. In this construction addi
oscillation of the agitator. ‘
.
tional means is provided for limiting the amount
The operation of the construction of Figs. 13,
of feed that may be exposed to the lair so that
14 and vl5 is as follows: A quantity of feed is
the feed which is presented to the birds will be
placed in hopper 88. The feed falls through
continuously fresh.
.
opening 85 to the bottom of the trough and tends
Since feed becomes stale upon exposure to air,
to spread laterally. The consistency of the feed
it is apparent that if means is provided for Vlim
is such that lateral movement is limited and- will
iting the amount that is exposed and also, at
not proceed unless it is agitated in the manner
the same time, presenting an adequate amount
heretofore set forth.
i
for the number of birds that are to feed at the 70
Upon movement of agitator |88, the feed
trough, staleness may be minimized.
travels laterallyuntil it comes into engagement
This result .is accomplished in the following
with the undersides of baffles 85 and 88 and the
.portion of the feed which travels through out
The hopper 80 has inwardly converging lower
away areas |82 and |84 ceases‘its outward move
.sides 82 and 84 which form the bottom opening i
manner:
‘
'
7
8
.ment .whenit comes .substantial-1y into the planes
ofthe baffles. The position assumed bythe feed
which consists of the ,following per ton of mate
at .this state is ‘indicated in Fig. I13 by .the »granu
lar indicators 'adjacent the baille S4. The feed
might extend a slight distance »beyond the base Ul
of the baffle, sloping `upwardly `¢to the underside
of the .top portion `of the baille where it is .defi
nitely -engaged.
_InÍgeneraL however, `the «design is such that the
exposed stu‘face -will >be about in the _plane ofthe 10
baille.
These `exposed areas present fresh food
to .the birds who ~forthwith proceed t0 veat it.
_In .a manner well known, the birds step .on and
off the platforms .Il 0 located `at .opposite >ends of
the Vtrough and move agitator _bar .|08 back :and
forth. The feed is .thus driven .outwardly little
`,by little Vas the agitation vproceeds until the ¿por
tions of the Afeed that have been eaten away _in
the open areas are replaced.
When the feed again arrives at about the
.plane .of the baille, outward .movement _ceases as
the resistance that-is built up by _the feed in ,such
position is more than the periodic movement of
the agitator bar can overcome, Thus, it will be
rial-z
Pounds
Wheat bran _________________________ __
Yellow corn -meal ____________________ __
A,Grround `oats ________________________ __
Wheat ñour middlings _______________ __
300
280
249.5
240
50 y»per cent .protein .meat scraps _______ __
20,0
.Ground .barley _______________________ __
V160
Cane molasses _______________________ _-
120
41 per cent protein soybean 4oil meal_____
100
58 per cent protein fish meal __________ -„
Alfalfa leaf meal ______________________ __
Oyster shell meal ____________________ __
15 Corn gluten meal.v___________________ __
100
30
80
.60
salt _________________________ -_
20
Fortified sardine loil __________________ __
Manganese sulphate _________________ __
Iodized
10
.5
2,000
The foregoing detailed description of the mash
is given as the flow characteristics of the mash
bears a relationship to the thickness of the agi
seen that in both the constructions disclosed in 25 tator bar and the angularity of the teeth. It is
not to be understood, however, that applicant’s
Figs. 1 to 8 and in Figs. _13 =to 15, the outward
invention is @to be limited to use with this par
movement of the feed Iis limited. In Figs. 1 to 8,
ticular type ,of mash, but rather that applicant
`it is limited solely by the resistance of the `feed
has found that this type of mash operates satis
itself, while in Figs. 13 to 15 it is limited partly
by the consistency of the feed and -partly by the 30 factorily with Ythe agitator mechanism disclosed.
I claim:
added resistance imparted by the baffle.
1. A poultry feeder comprising a trough, a hop
It will be understood, of course, that the »shape
per for .containing chicken mash, said hopper po
of the cut away areas of the baille may be Varied
sitioned over said trough and spaced therefrom,
both as to their height and width and likewise
an agitator bar extending lengthwise of said
the slope of `the baille may be changed, all for
trough and under the bottom opening of said
the purpose .of meeting the conditions presented
hopper, means exterior of said trough against
by the particular feed that is used.
which birds may exert a force, and means con
In all constructions, it is .contemplated that
necting said exterior means to said agitator bar
staleness be minimized Aby presenting 4to the birds
as small a usable volume as possible, thus insur 40 so that alternating movement of said exterior
means under the influence of force applied there
ing a consumption of the exposed feed while it
to by a bird will cause longitudinal oscillating
is still fresh and the replacement »thereof by
movement of said agitator bar, said agitator bar
additional fresh feed.
having a plurality of indentations along the sides
It is to be understood vthat the present inven
thereof, which indentations are effective to cause
tion performs in the intended manner only when
.certain kinds of feed are used therewith. The
general description-of the kind of feed that I have
found is moved in the intended _manner by the
agitator is called mash and may be of any of
lateral movement of said mash until a determina
ble quantity has flowed into said trough, after
which continued longitudinal oscillating move
ment of said agitator bar through said mash will
the principal types of mash: namely, laying mash
cause no further flow of said mash into said
or egg mash, `chick mash or starting mash, and 50 \ trough.
2. A poultry feeder comprising a trough, a hop
growing mash. Chicken mashes are of compli
per for containing chicken mash, said hopper po
cated physical structure «in that they are >com
sitioned over said trough and spaced therefrom,
posed of ,a large number of ingredients lground to
an agitator bar extending `lengthwise of said
small _grain size and finally mixed together. Be
trough and under the bottom opening of said
cause of »the physical properties of the different
hopper, platforms at both ends of said trough,
materials, the resultant mix has flow character
and lever arms connecting said platforms to said
istics which are peculiar to this type of product.
agitator bar, the lever arrangement being such
It is impossible to describe the grain size as being
that when one platform is moved downwardly,
between any particular limits because of the
varying ingredients and the grain sizes to which 60 the agitator bar -will be moved toward the other
end .of the trough and the other platform will be
they are customarily ground. In general, how
raised, whereby oscillating movement of said agi
ever, the size of the grains of the smaller mate
tator
bar will take place through the force ap
rials varies from .00,3 to .010 inch, but there is a
plied to the platforms by birds stepping thereon,
certain amount of larger particles that comes
said agitator bar having a plurality of substan
from materials such as the husks of bran and
tial
indentations along the sides thereof, which
the fairly long fibers from oats. These larger
indentations are effective to cause lateral move
particles tend to retard the free flow of the
ment of said mash until a determinable quantity
smaller particles by providing a group of irregu
larly disposed, relatively large-sized elements 70 has ¿flowed into said trough, after which contin
ued longitudinal oscillating movement of said
Within the mash.
‘
agitator bar through said mash will cause no
A typical formula of mash that I have found to
further
flow of said mash into said trough.
flow satisfactorily under the influence of my
3. A poultry feeder comprising a trough, a hop
agitator is that manufactured by Eastern States
per for containing chicken mash, said hopper po
Farmers’ Exchange .of Springfield, Massachusetts, 75 sitioned
over said trough and spaced therefrom.
2,412,951
10
ing connection between said frame and said agi
an agitator bar resting on the bottom of said
tator bar whereby movement of said frame will
cause longitudinal movement of said agitator
bar in one direction, and a second movable frame
trough and extending lengthwise thereof under
the bottom opening of said hopper, said agita
tor bar having a plurality of substantial inden
tations along the sides thereof, said indentations
being of such depth and angularity that longi
similarly connected to said agitator bar at the
opposite side of said trough.
9. A poultry feeder comprising a trough, a
tudinal movement in one direction Will force a
hopper for containing chicken mash, said hopper
positioned over said trough and spaced therefrom,
an agitator bar extending lengthwise of said
trough and under the bottom openi lg of said
limited quantity of mash laterally by virtue of
the wedge-like engagement of the advancing for
ward edges of the indentations against said mash
and at the same time will provide a void behind
hopper, means exterior of said trough against
the trailing edge of said indentations whereby a
which birds may exert a force, means connect
limited amount of mash will fall downwardly into
ing said exterior means to said agitator bar so
said void, and means connected to said agitator
that
alternating movement of said exterior means
bar for causing oscillating longitudinal movement 15 under the influence of force applied thereto by a
thereof upon the application of force to said
bird, will cause longitudinal oscillating movement
means by .f-:aid poultry, the formations of said
of said agitator bar, and means for limiting the
agitator bar being incapable of producing further
movement of feed laterally into said trough after
the feed has flowed laterally in said trough a de
terminable amount.
4. A poultry feeder comprising a trough, a hop
per for containing chicken mash, said hopper po
sitioned over said trough and spaced therefrom,
an agitator bar extending lengthwise of said
trough and under the bottom opening of said
hopper, the ends of said agitator bar extending
through openings in the ends of said trough for
a limited distance therebeyond,‘a yoke pivotally
lateral movement of the mash from said agitator
20
bar, said limiting means comprising a sheet of
material extending from the edge of the bo-ttom
opening of said hopper downwardly and out
wardly t0 the trough bottom, said sheet being
cut away at its lower portion, whereby a limited
area only of feed will be exposed to the air and
further outward movement of the feed will be pro
hibited until such time as the exposed surface
layer has been removed.
10. A poultry feeder comprising a fixed trough,
a hopper for containing chicken mash, said hop
mounted at each end of said trough, a lever on 30 per positioned over said trough and spaced there
each yoke, each lever connected to the corre
from, an agitator bar having a plurality of in
sponding end of said agitator bar, the leverage
dentations along its side and extending length
being such that the force exerted by a bird
wise over the bottom of said trough and under the
against said yoke will be suincient to move said
bottom opening of said hopper, means connected
agitator bar longitudinally against the resistance
with said agitator bar against which birds may
afforded by said mash, said yokes providing
apply a force to cause oscillating movement of
means for causing longitudinal oscillation of said
said agitator bar, and a baille extending down
agitator bar, and a plurality of teeth along the
wardly and outwardly away from the edge of the
sides of said agitator bar of such number and
bottom opening of said hopper, said baille being
depth that limited movement of said agitator bar 40 cut away along its lower edge whereby the ex
will be suihcient to cause lateral flow of said mash
posed surface area of said feed may be limited.
to a predetermined depth in said trough, after
11. A poultry feeder as set forth in claim 10
which continued movement of said agitator bar
in which said baille is hingedly connected to said
through said mash will cause no further ñow of
45 hopper.
said mash into said trough.
12. A poultry feeder comprising a trough, a
5. A poultry feeder comprising a trough, a hop
hopper for containing feed and positioned there
per for containing feed and positioned there
above, an agitator bar extending along the trough
above, an agitator bar extending along the trough
bottom and below the hopper, means operable
bottom and below the hopper, and means oper
able by birds for causing reciprocating movement 50 by birds for causing reciprocating movement of
said bar, said bar having serrated edges and be
of said bar, said bar having serrated edges and
ing capable, when reciprocated, of causing a posi
being capable when reclprocated of causing posi
tive lateral movement of feed toward the trough
tive lateral movement of feed toward the trough
sides and means for restraining the lateral move
sides until the feed accumulates to a determinable
55 ment of said feed beyond a predetermined point,
depth.
said means comprising a baille plate which ex
6. A poultry feeder as set forth in claim 5, in
tends in an outwardly sloping direction from the
which the bird-operable means comprises a pair
hopper bottom, said baille plate having cut away
of platforms, and levers connecting the platforms
areas of such width as to provide a space imme
with said agitator bar, whereby when one plat
diately above the trough bottom and at the same
60
form descends, the other ascends, and the agita
time to present suflicient resistance so that the
tor bar ls moved longitudinally.
outward flow of feed will stop when the surface
'7. A poultry feeder as set forth in claim 5 in
of that portion of the feed that it exposed at
which the bird-operable means comprises a shaft
the cut away areas reaches a position where it is
extending transversely of said agitator bar, a
platform mounted transversely of said shaft so 65 more or less in the plane of said baffle plate, even
though oscillating movement of said agitator bar
that tilting of said platform will causel rotary
is continued.
'
movement of said shaft, and a connection be
13. A poultry feeder as set forth in claim 12
tween said shaft and said agitator bar to trans
in which said baille plate is hingedly connected
late rotary movement of said shaft into longi
70 to said hopper.
î
ì '
tudinal movement of said agitator bar.
14. A poultry feeder as set forth in claim 12
8. A poultry feeder as set forth in claim 5,
in which said baffle plate has downward exten
in which the bird-operable means comprises a
sions which normally engage the trough bottom.
movable frame outboard of said trough and posi
tioned to invite pressure thereagainst by a bird
J OHN J. CARMO'.
seeking feed from said trough, a leverage supply 75
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