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Патент USA US2405695

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Aug» .33, 1946.
Filed July 22, 19.44
4 Sheets-Sheet l
Aug. 13', 14.
Filed July 22, 1944
4 Sheets-Sheet 2
Aug, E3, 1945.
Filed July 22, 1944
4 Sheets-Sheet 3
' 62
?ax-B. Haifa/{c0 ck a'nci’
Jamaal E .H115210772,
Patented Aug. 13, 1946
Rex B. Hitchcock, Evanston, and Samuel E. Hil
blom, Chicago, 111., assignors to International
Harvester Company, a corporation of New‘
Application July 22, 1944, Serial No. 546,144
5 Claims. (Cl. 302-37)
This invention relates to a new and improved
ensilage blower and has for one of its principal
objects a provision of means for swinging the
feed trough from a position parallel with the fan
to a position perpendicular to the fan with a
to provide an ensilage blower that is suited for
operation under all conditions. The feed trough
is quickly shiftable from a position parallel to the
blower fan to a position perpendicular to the
minimum number of operating parts.
charge from a wagon having either end or side
blower fan, and it‘ is, therefore, obvious that dis
An important object of this invention is to pro
vide an easily transportable ensilage blower and
one that is capable of having itsfeed trough in
gates may be accommodated. Further, when the
space available around the silo is limited, it is
possible to set up the ensilage blower with the
either one of two positions to enable the user to 10 feed trough parallel to the blower-fan, and after
place the trough so as to best receive the mate
driving the load of ensilage material past the silo,
rial discharged from a wagon or truck, or the like,
when ?lling a silo.
the feed trough of the blower can then be swung ' V
arranged in numerous ways.
usually provided adjacent the silo. The ensilage 20
regardless of the positioning of the-feed trough.
Other and further important objects will be
to be stored is hauled to the silo in a Wagon or
come apparent from the disclosures in the follow
to a position perpendicular to the blower fan.
Heretofore ensilage blowers have customarily
A still further important object of this inven
employed a ?xedly positioned feed trough, and 15 tion is to provide a ?xed fan. feed device posi
the usual position of this feed trough was at right
tioned adjacent the fan inlet and joining with the
angles to the blower or fan which elevated the
discharge end of a swingable feed trough. The
ensilage to the silo.‘ Farmyards may be and are
fan feed device functions‘in the same manner,
A road or lane is
truck which usually has end gate discharges.
ing speci?cation and accompanyingdrawings, in
The ensilage blower is set up so that the fan is
parallel or rather tangent to the circumference
Fig. 1 is a front elevation of the ensilage blower
of the silo. ‘The feed trough of the majority of 25 .of this invention;
ensilage blowers projects out into the road lying
Fig. 2 is a top plan view of the ensilage blower
next to the silo. In view of the fact that the dis
charge from the wagons or trucks is at the end
of the vehicle, it is necessary that the vehicle be
backed into position in order that the load may 30
be easily discharged directly into the feed trough
of the ensilage blower. A good majority of the
farmers that use ensilage blowers do not'have
trucks which are readily backed into position but
as shown in Fig. 1;
Fig. 3 is a detail sectional view taken on the
line 3-3 of Fig. 1; ‘
Fig. 4 is an end view of the ensilageblower;
Fig. 5 is a sectional view taken on the line 5—5
of Fig. 2; and
Fig. 6 is a side elevational view of the ensilage
blower showing the feed trough at right angles to
employ wagons drawn by tractors. It is quite 35 the blower.
di?icult to back a tractor-drawn wagon into dis
As shown in the drawings:
charge position adjacent the perpendicularly ex
The reference numeral I0 indicates generally
tending feed trough of an ensilage blower. In
a base or skids on which the ensilage blower of
numerous situations, the space around the silo is
this invention is mounted. A blower fan housing
so limited that it is impossible to turn a truck or 40 I l is located at one end of the base I0 and is posi
a tractor-drawn wagon around. In order to com
tioned longitudinally thereof. A feed trough I2
pensate‘ for the apparent dif?culty, some wagon
lies adjacent the blower housing II and extends
manufacturers have provided side discharges for
their wagons, and implement companies have sold
parallel thereto along the length of the skids Ill.
The blower housing is provided with an upwardly
two types of ensilage blowers, one of which has 45 extending discharge port I3 upon which may be
had the feed trough extending perpendicular to
attached extension conduits leading to the top of
the blower fan, and the other which has had its
a silo or the like.
feed trough extending parallel to the blower fan.
The skids I0 are provided with‘ upwardly in
It. therefore, became possible for a farmer to pur
clined end portions I4 which are joined by a
chase the type of ensilage blower and wagon 50 cross-member I5, and in the - central portion
whichtbest ?tted his needs. His needs, of course,
thereof, a forwardly extending tongue or hitch
would depend on several things, namely, the
member I5a is provided for attachment to a draft
available space around the silo and the direction
vehicle or the like. In order to, transport this
of the road adjacent the silo.
ensilage blower during short travels about the
It‘ is a special object of the present invention 55 immediate farm, the hitch'member' I5 is raised
and attached to the draw-bar of a tractor or the
like. It will thereupon be seen that the machine
will drag on its skids II]. This ensilage blower
including the feed trough is a, relatively narrow
machine and is conducive to pulling on skids.
Heretofore, it has been the general practice to
have the feed trough positioned at right angles
to the blower, and in that type of construction
the machine was relatively wider and made trans
portation more di?icult. For longer trips, of
course, the device can be put on a truck.
The feed trough l2 has a relatively steep'wall
l6 lying adjacent the blower housing ||'. The
other side wall I‘! of the trough i2 is inclined at
an angle such as shown in Figure 5. This pro-~
vides a wide opening for the top of the trough
and insures ease of ?lling. .An open-end auger‘
l8 lies within the base portion of the trough and
by means of its spiral ?ights I9 is adapted to feed
ensilage within the hopper or trough l2 in a di 20
rection longitudinally of the length of the trough
and 51b of the handle 51. at points 62 midway
between the hinge points 58 of the handle and
the cross or top member SI of the handle. As the
handle 51 is swung about its hinge members 58,
it is quite obvious that the link members 56 will
be raised and lowered depending upon the direc
tion of movement of the handle 51. As shown in
Fig. 1, the links 55 are in their uppermost posi
Ition, and. hence the leg 53 is also in its top po
sition. The handle 51 has an automatic locking
' feature, and,‘ as shown in Fig. 1, the handle 51
‘is locked by means of the overcenter location of
the pivot point62 with respect to the hinge points
58.. Tendency of ‘the leg 58 to move downwardly
will not cause the overcenter locking of the han
dle 51 to release, but rather the handle 5'! must
be lifted and swung around from the top side.
The leg members 50‘1 and 50*’ are provided with
vertical slots 63 and 64 which have sliding there
in the pins 65 and 66, respectively, which are
rigidly attached to the outer ?anges of the cen—
tral channel member 5|. As the feed trough is
and toward the blower housing H. The discharge
lifted from its position on the cross member lb
end 20 of the auger la is unsupported and un
of the skids |0 and swung about the hinge mem
obstructed so thatensilage being moved within
the trough by the auger will pass freely out of the 25 ber 61, it is essential that the leg 50 be extended
downwardly to compensate for the lack of skids
end 20 of the auger and into a chamber 2| mount
when the feed trough is in a perpendicular po
ed over an opening 22 in the fan'housing | |. The
sition with respect to the blower housing It
chamber 2| contains a vertically positioned ?uted
The handle 51 is ‘thereupon swung around and
feed roll 23 adapted to rotate in the direction in
dicated by the arrow 24, as shown in Fig. 3. The 30 downwardly beneath the hinge pins 58, so that
the connecting links 56 force the legs 50% and 50b
roll 23 has radially extending flutes or paddles
downwardly. The foot 52 contacts the ground,
25. The housing 2| is circular in shape and
and the slots 63 and 64 are moved downwardly
conforms closely to the ‘circumference of the flut
vuntil the studs or pins 65 and 66,.slidable within
ed feed roll 23. The feed trough i2 is separate
from the chamber 2| and is joined only through -. i
the restricted opening 26. ' This‘ vopening 26 is
these‘slots, contact the upper end of their re
spective slots.
circular in shape and is only slightly greater in
. The blower housing | | contains a fan 2'! which
at its outer end with a leg member 5 i} which con
air ‘and ensilage is thrown and blown upwardly
out the discharge port Hi.
The drive employed for the various elements,
is adapted to receive material entering the open
diameter than the diameter of the outer edges
ing 22 and throw it and blow it upwardly through
of the auger ?ight IS. It is apparent that by re
stricting this opening 25 to such size the mate-‘ 40 the discharge port l3. As best shown in Figure 1,
the side wall of the blower housing | I has a plu
rial admitted to the‘chamber 2| ‘is limited to the
rality of small apertures 28 positioned above and
amount carried within the circumference of the
to. the left of the ?uted feed roll compartment
auger. This feature tends to prevent congestion
2|. These apertures insure a constant supply of
within the blower.
As the ensilage leaves the discharge end 20 of 1’ air for the fan 21, and no reliance is made on air
being admitted through the feed opening 22. The
the auger |8, it is forced through the opening 26
particular positioning of the apertures 28 permits
and is thereupon carried by the paddles 25 out
the entrance of air without harmful effects to
wardly and thence around into the opening» 22 in
ward fan operating ef?ciency. The fan 21 in its
the fan housing | | . The ensilage material there
travel within the housing» |! picks up air as it
fore enters the fan housing at right angles there- '
passes the openings 28 and comes down and
to in spite of the fact that the feed trough ex
around and picks up ensilage as it is fed into
tends parallel to the fan housing.
the entrance 22, whereupon the combination of
The ensilage blower. feed trough ‘ | 2 is equipped
sists of a pair of spaced apart slotted angle mem
bers 5|}EL and 50b, which are slidably mounted on
the central supporting channel member 5|. The
leg member 50 is equipped‘ with a base or foot
portion 52 which, as shown in Fig. 4, rests on
top of the skid cross member l5. The edges of
this foot 52 are turned. upwardly, as shown at
53, and the foot rests on and between a pair of
nubs or the like 54.
These nubs are located in
such as the auger, the feed roll, and the fan, as
shown, is received from the pulley 29 which is
driven from a tractor power take-01f pulley but
may possibly be driven by some stationary en
gine or the like. The pulley 29 is mounted on
and fastened to a shaft to which extends in
wardly and at its opposite end supports the fan
2'! within the housing H. The shaft 30 is jour
such a position that, when the leg 5|! of the feed
naled within a suitable housing 3| which is fas
trough I2 is between them, the trough is substan
tened to the stationary blower housing | |. A
tially parallel to the blower fan.‘ Each of the
bevel gear 32 is keyed or otherwise fastened to
angle members 50*‘ and 56b is provided with an
the shaft 3!! within the housing 3|. A coop
extending lug member 55, and, as best shown in
erating bevel gear 33is placed at right angles to
Figs. ‘1 and 6, these lugs have attached thereto
connecting links 56 which extend upwardly ‘and '-1 the ?rst bevel gear 32 and is also positioned
within the supporting housing 3|. The bevel
are thereupon joined by a bail-shaped‘ handle 5?.
gear 33 is keyed or otherwise fastened to a shaft
The legs 51*‘- and 51b of the bail handle 5? are
'34 which projects downwardly and carries a V
?xedly pivoted at 58 to brackets 59 forming part
belt pulley or the like ‘35 at its lower end. A
of the feed trough l2. The ends of the links 53
downward extension 36 of the housing 3| is
are pivotally connected'to the leg members 5;‘!a
adapted to journally support the shaft 34. A
V-belt pulley 31 is mounted on the lower end of
a shaft 38 upon which is fastened the feed roller
23. A V-belt 39 joins the pulleys 35 and 31 and
thus transmits rotation from the drive pulley
29 to .the feed roller 23. A worm 40 is keyed or
otherwise fastened to the shaft 38 and is adapt
ed to cooperate with a worm gear 4!.
gears, namely 40 and 4|, are mounted within a
gear box 42.
feed roll housing having a side wall hinged to
said fan housing, whereby said wall may be
swung out of the way when said feed trough is
moved to a position perpendicular to said fan
2. In an ensilage blower, a fan, a fan housing
having an opening in the side thereof, a feed roll
journaled on a vertical shaft for rotation adja
cent said opening, an arcuate housing adapted
The worm gear 4| is keyed to a 10 .to enclose said feed roll, said housing including
shaft 43 which extends lengthwise of the skids Hi.
This shaft 43 is joined by a universal joint 44
to an extension shaft 45 which is in turn joined
by a universal joint 46 to a shaft 41. A sprocket
48 is keyed to the end of the shaft 41. A second
sprocket 49 is mounted on the end of the auger
l8, and by means of a chain 50, rotary drive is
transmitted from the sprocket 48 to the sprocket
a ?xed top and bottom and two curved side walls.
one side wall being hingedly secured to the fan
housing, a feed trough hinged for swinging move
ment in a horizontal plane about the axis of said
vertical feed roll, the other of said feed roll
housing curved walls being secured to the delivery
end of said trough, latch means between said
hinged curved wall and said ?xed curved wall
when the feed trough is in a position parallel to
Swinging of the feed trough l2 from a posi
said fan housing, and whereby when the feed
tion parallel to the blower fan to a position
trough is moved to a position perpendicular to
perpendicular to the blower fan is accomplished
said fan housing the hinged curved wall may be
by reason of the hinge 61 and the shaft 38. The
unlatched and swung to an out of the way po
shaft 38 is capable of acting as a hinge, because
sition and the feed trough may then be swung
the worm wheel 4| may swing about the worm
through a horizontal plane so that it directly con
40 on the shaft 38, and the V-belt pulley 31 may
tacts the fan housing.
also be rotated without interrupting or affecting
3. In an ensilage blower comprising elongated
the drive in any manner. Swinging of the trough
skid supports, a blower housing mounted in par
12 to the perpendicular position necessitates a
allel position on one end of said skid supports, a
removal of a portion of the housing of the cham 30 feed trough hinged at one end to said blower
ber 2|. The trough housing l2 terminates at the
housing, an adjustable leg at the other end of
partition wall which contains the opening 28. A
said trough, said leg having means associated
curved gate member 69 hinged at ‘NJ on the
therewith for ?xing the leg in either of two
blower fan housing II is capable of abutting the
end 68 of the feed trough l2 when in closed posi
limiting positions, and said means including an
tion, as shown in full lines in Fig. 3. In order
that the feed trough may be moved to a per
4. In an ensilage blower, a fan, a fan housing
having an opening in .a side thereof, a vertical
over-center lock.
pendicular position, the hinged gate 69 is moved
axis shaft feed roll mounted for rotation adja
to the dashed line position of Fig. 3 and the feed
cent said opening, a feed trough, a partial hous~
trough l2 swung around to the position shown in 40 ing for said feed roll intermediate said fan hous
dashed lines in Fig. 2 and as shown in Fig. 6.
ing and said feed trough, hinge means associated
It will be apparent that the end 68 of the trough
with said feed trough and said fan housing
l2 will lie adjacent the hinged part ‘H of the fan
whereby the feed trough may swing in a hori
housing I I. The gat, 69 is maintained in closed
zontal plane, said feed trough forming a con
position by means of a pin 72, joining latch 45 tinuation of said feed roll partial housing when
members 13 and 14 attached'to the trough l2
the feed trough is positioned parallel to said fan
and gate 69, respectively.
housing, said feed roll partial housing being piv
Feeding of ensilage or other material from the '
oted to said fan housing for movement away
trough to the fan housing I l is accomplished with
feed roll enclosing position, whereby said
the same effect regardless of the position of the 60 feed trough may be moved to a position perpen
feed trough. The paddle wheel 23, moving in a
dicular to said fan housing in which case the feed
clockwise direction as indicated by the arrow 24
trough itself forms a complete enclosure of the
in Fig. 3, will effect a substantial perpendicular
feed roll without the said partial housing.
feeding of ensilage material into the chamber
5. In an ensilage blower, a fan, a fan housing
I I. This is true in the perpendicular position of 55 having an opening in a side thereof, a paddle
the trough, as well as the parallel position of the
feed roll journaled on a vertical shaft for rota
trough, for the reason that the ?uted feed roll 23
tion adjacent said opening, a feed trough hinged
remains in ?xed position in front of the fan
for swinging movement in a horizontal plane
housing opening 22.
about the vertical'shaft, a housing forming part
We are aware that herein is provided a novel 60 of an enclosure for said paddle feed roll and in
ensilage blower capable of numerous adapta
What is claimed is:
cluding an arcuate portion supported by said fan
housing and a. portion constituting part of said
feed trough, and means for pivotally supporting
1. In an ensilage blower, a fan, a fan housing
the arcuate portion of the housing supported by
having an opening in the side thereof, a feed 65 said fan housing for movement from feed roll
roll mounted for rotation on a vertical shaft ad
enclosing position when it is desired to swing
jacent said opening, a housing for said feed roll,
the feed trough from a position parallel to said
a feed trough hingedly mounted on‘ said feed roll
fan housing to a position perpendicular to said
shaft, said feed trough forming a continuation
fan housing.
of said feed roll housing when the feed trough is 70
positioned parallel to said fan housing, and said
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