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Патент USA US2405824

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Aug. 13, 1946.
H. E. GRETHER
21,405,82
FERTILIZER DISTRIBUTOR
Filed May 20, 1944
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Patented Aug. 13, 1946
2,405,824
barren STATES PATENT OFFICE;
2,405,824
FERTILEZER DISTRIBUTOR.‘
Hermann E. Grether, Camarillo, Cali-f.’
ApplicationM-ay 20,- 1944’, Serial No‘. 536,557"
4* Claims.
( Cl. 222-239).‘
This invention relates. to a fertilizer distribu
tor.
An object of the invention is to provide a con
struction comprising a hopper in which fertilizer
to be distributed may be placed and provide
means for evenly and regularly distributing and
feeding the fertilizer from the hopper.
Many commercial fertilizers are hygroscopic
shaft M may be used to cause the shaft‘ M toro
tate at a relatively slow speed but in direct rela—
tion to the‘ distance of the ground traversed;
On. top of” the housing It‘ there is supported? a
and because of this are apt to become moist and
cake or lump badly during storage. so thatat the
contemplates a construction wherein the ferti
lizer even though it- may have caked and become
quite lumpy, is nevertheless‘ automatically re
duced to a ?nely comminuted state and is evenly 15
and. regularly distributed from the? hopper
through suitable outlets.
Another object of the invention is to provide
described while these pockets are between the out‘
lets from-the hopper. This hopper has outlets it
and H2 preferably arranged at diametrically op
positesidesthereof. rIfhese outlets discharge into
channels or spouts l3: and i9 and‘discharge the
fertilizer on to the ground to be fertilized. Pref
a fertilizer distributor that may beeasily and eco
nomically constructed and Which may be installed 20 distance bearing a direct relationship to the dis».
upon a tractor or other vehicle and be power
driven thereby.
tance of the rows of vegetation that it is desired
to fertilize.
Still another object of the invention is to pro
'
On the shaft Hi there are mounted oneor more
vide a. fertilizer distributor having relatively few
lates, two of which are indicated at 23‘ and 2!.
moving parts and which is readily adjustable so 25 These plates-are removably mounted on the shaft
that the quantity or the rate at which the ferti
94 and arepreferably‘ keyed thereto such as by
lizer is fed from the hopper may be intentionally
If desired the upper end of the shaft
varied at will in accordance with the desires of
the operator.
to be rotated by the'shaft. These plates have
aligned peripheral recesses 22 which cooperate
with the cylindrical wallsrof‘ the hopper i5 to
35 form a series of pockets 23/ each of which are de
ment of the invention, wherein
signed to receive and be?lled: with fertilizer from
Fig. 1 is a vertical diametrical section through
the fertilizer distributor embodying the present
invention;
Fig. 2 is a horizontal section taken substantially 40
upon the line 2—-2 upon Fig. 1 in the direction
indicated;
and-tourge the fertilizer downwardly toward the
pockets.
Fig. 3 is a partial horizontal section illustrating
a detail of construction.
_
Referring to the accompanying drawing where
in similar reference characters designate similar
On the inside of the hopper over the
outlets there are disposed boxes 25 having tops,
inner walls and ends. These boxes serve to pre
45 vent ingress to the pockets 23 as the pockets are
brought into and out of registration with the out
lets l6 and H. On the sides of the hopper there
50
or otherwise secured to a vertical 55
2,405,824
per having outlets in the bottom of the sides
I‘! respectively and are adapted to enter the
pockets 23 to dislodge fertilizer from the pockets
thereof, a bottom for the hopper, means for
rotating the bottom relatively to the hopper, said
bottom presenting peripheral recesses cooperat
as they pass by the outlet.
The plates 20 and 2| are preferably, but not
ing with the sides of the hopper to form pockets
necessarily dome-shaped in form so that thei7 L1 adapted to be filled with fertilizer from within
slope from their foundation outwardly toward
the hopper and which are consecutively brought
their edges. These plates rest upon a shoulder on
into registration with the hopper, and spring
the sh ft [4 and the shaft is preferably equipped
actuated means urged into engagement with the
with thrust bearing 29 supported on a central
10 walls of the hopper and the bottom for covering
spide 3D in the housing.
the pockets after they pass into and out of regis
Th operation and advantages of the improved
fertilizer distributor are as follows: The fertilizer
tration with the outlets.
i
2. A fertilizer distributor comprising a hopper
having outlets in the bottoms of the sides there
per l5. As the vehicle or tractor on which the
of, a vertical central shaft in the bottom of the
distributor is mounted, traverses the ground, 15 hopper, one or more superposed blades on the
shaft H is rotated which brings about the rota
shaft forming a bottom for the hopper, means
tion of shaft M. The fertilizer in the hopper
for rotating the shaft, there being peripheral
is effectively steered and forced downwardly by
recesses in the blades cooperating with the sides
the impeller 24 and ?lls the pockets 23, during
of the hopper to form pockets adapted to re
the rotation of the plates 2| and 20. During 20 ceive fertilizer from the hopper and conduct it
rotation of these plates by the shaft the pockets
to the outlets as the shaft rotates, means closing
are consecutively carried into and out of regis
the tops of the pockets against ingress thereto
tration with the outlets, passing beneath the
as the pockets are brought into and out of regis
boxes 25 which prevent further ingress of fer
tration with the outlets, and an impeller on the
tilizer from the hopper into the pockets while
shaft above said plates rotatable by the shaft.
the pockets are emptying through the outlets.
3. A fertilizer distributor comprising a hopper
Each pocket 23 will, of course, contain a prede
having outlets in the bottoms of the sides there
termined quantity of fertilizer. This quantity,
of, a vertical central shaft in the bottom of the
however, may be varied by adding or subtracting
hopper, one or more superposed blades on the
that is to be distributed is dumped into the hop
plates 2|. By adding plates 2i the height of
the pockets 23 will be increased and consequently
the volumetric capacity of each pocket will be
shaft forming a bottom for the hopper, means
increased. In this manner with a given setting
of the machine the fertilizer will be constantly
and evenly fed and distributed from the hopper
into the spouts l8 and I9 and deposited upon or
between the rows. Any tendency of the fer
tilizer to remain in the pockets 23 is eliminated
by the leaf springs 26 which enter the pockets
and dislodge the fertilizer therefrom after the
pockets are brought into registration with the
of the hopper to form pockets adapted to receive
outlets.
for rotating the shaft, there‘ being peripheral
recesses in the blades cooperating with the sides
fertilizer from the hopper and conduct it to the
outlets as the shaft rotates, means closing the
tops of the pockets against ingress thereto as
the pockets are brought into and out of regis
tration with the outlets, and yieldable means
extending into the pockets when they are brought
into registration with the outlets for dislodging
fertilizer therefrom into the outlets.
.
By means of the above described construction,
even though the fertilizer may be hygroscopic
and caky or lumpy in condition, an even feed
ing or distribution of the fertilizer can be easily
accomplished. The impeller 24 tends to break
up the lumps and the edges of the recesses 22
tend to break down cakes or lumps by attrition
during the rotation of the plates within the hop
per so that the fertilizer delivered through the
spouts l8 and i9 is not only delivered at a uni
form rate but in a ?nely comminuted and read
45
‘l. A fertilizer distributor comprising a hopper
having outlets in the bottoms of the sides there
of, a vertical central shaft in the bottom of the
hopper, one or more superposed blades on the
shaft forming abotto-m for the hopper, means
for rotating the shaft, there being peripheral
recesses in the blades cooperating with the sides
of the hopper to form pockets adapted to receive
fertilizer from the hopper and conduct it to the
outlets as the shaft rotates, means closing the
tops of the pockets against ingress thereto as
the pockets are brought into and out of regis»
ily distributable condition.
_
55 tration with the outlets, and leaf springs ex
Various changes may be made in the details
tending into the outlets adapted to enter the
of construction without departing from the spirit
pockets, as they pass into registration with the
or scope of the invention as de?ned by the ap
outlets for dislodging fertilizer therefrom.
pended claims.
I claim:
1. A fertilizer distributor comprising a hop
HERMANN E. GRETHER.
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