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Патент USA US2116945

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May 10, 1938.
s. B. HITCHENS
2,116,945
snow PLOW
Filed April 16, 1957
5 Sheets-Sheet l
Inventor
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am
.4 iinrneys
May 10, 1938.
s. B. HITCHENS
snow PLOW
Filed April 16, £937
‘
2,116,945
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5 Sheets-Sheet 2
Attorneys
May 10, 1938.
S. B. HITCHENS
2,1 16,945
SNOW PLOW
Filed April 16, 1937
By
5 Sheets-Sheet 3
May 10, 1938.
s. B. HITCHENS
2,1 16,945
snow PLOW
Filed April 16, 1937
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2,116,945
Patented May 10, 1938
UNITED “STATES
{PATENT TOFFIC E
2,116,945
SNOW PLOW
~ Sherman B.‘ \Hitchens, Missouri Valley, Iowa
Application April 16, 1937, SerialNo. 137,350
(CI. 37-43)
> 1 Claim.
This invention‘ appertains to new and useful tical leg. portions of the inverted U-shaped
frame ‘20.
improvements in‘ snow plows-whereby snow can
‘be removed from streets and roadways’in a quick
‘ and e?icient manner.
An important object of the invention is to pro
vide a snow plow which employs a transverse or
lateral conveyor for‘ snow and upon which the
snow is mechanically placed as the plow oper
ates against the same.
Another important object of the invention is to
10
provide a snow plow adapted to be pushed by a
powered vehicle and driven by a power connec
tion with the said powered vehicle.
Other important objects and advantages of the
15 invention will become apparent to the reader of
the following speci?cation.
In the drawings:—
Figure 1 represents a top plan view of the
apparatus.
2O
Figure 2 is a side elevational view.
Figure 3 is a longitudinal sectional view. -
Figure 4 is a transverse vertical sectional view.
Figure 5 is a fragmentary longitudinal sectional
View of a modi?ed form of the invention.
Figure 6 is a fragmentary side elevational view
25
of the modi?ed form shown in Figure 5.
Figure
'7
is
a
fragmentary . sectional
view
through the blower.
Figure 8 is a rear elevational view of the plow.
Referring to the drawings wherein like nu
30
merals designate like parts, it can be seen in
Figure 1 that numeral 5 denotes the forward end
portion of a tractor frame which has forwardly
projecting arms li--6 to which the frame mem
35 bers ‘I of the plow construction generally re
ferred to by numeral 8 are pivotally secured as at
9. These members ‘I extend vertically at the
rear of the frame from the horizontally disposed
frame portion Ill underlying the box structure. A
40 snow catching box I | is mounted upon the frame
II] and has the hinged top l2 whereby access can
be had to the interior thereof. This box H is
provided with the end walls |3—|4 and is open
at its front side. Forwardly extending, diverged
45 wing members |5-—|5 project from the end walls
|3-—|4 and these wing members |5—|5 are con
nected by the fan-shaped bottom wall It having
the reinforced blade-like edge |'I.
50
As is suggested in Figures 1 and 2, the walls
|3-—|4 extend forwardly of the box proper for
a short distance as at |3a-|4a before they merge
with the wings |5-| 5 and through these wall ex
tensions |3a—|4a passes the shaft l8 which has
55 its ends journal-ed in the bearings IS on the ver
As is suggested in Figure 3, an impeller general
ly referred to by numeral 2| is employed for driv
ing ‘the snow backwardly on the inclined bottom
It and onto the conveyor designated generally
by numeral ‘22.
The impeller‘2l consists of. the plurality of
blades 23 extending longitudinally on the drum
24 and each of these blades 23 has brace rods 25 10
on the back side thereof extending transversely
thereof and bracing one blade against the suc
ceeding blade.
On the back wall of the box I l are the bearings
26 through which the shaft 21 is journaled, the
shaft having the sprocket wheel 28 at one end
and the sprocket wheel 29 on its opposite end.
As is clearly shown in Figure 1, the sprocket
wheel 3|! is provided on the aforementioned shaft
I8 and a sprocket chain 3| is trained over these
sprockets 28-30 so that the impeller 2| is driven
by the shaft 21. The shaft 21 is driven in turn
by a chain 32 which extends from the tractor
(not shown) forwardly and is trained over the
sprocket wheel 33 on the shaft 21.
25
As is shown in Figures 3 and 8, the lower por
tion of the box II has a pair of forwardly and
rearwardly extending shafts 34—35 provided with
sprocket wheels 36 thereon, these sprocket wheels ,
having endless chains 3'! trained thereover while
the chains, in turn, are connected by slats 38 de
?ning the conveyor 22. The shaft 34 of the con
veyor 22 is equipped with a worm gear 39 with
which the worm 49 on the stub‘ shaft 4| meshes.
This stub shaft 4| has a sprocket wheel 42 and a
companion sprocket wheel 43 is provided on the
shaft 21. A sprocket chain 44 is trained over the
sprockets 42-—43 so that the shaft 2'! drives the
shaft 34 of the conveyor 22.
As is shown in Figure 3, a deflecting plate 45
extends horizontally along the end walls |3—-|4
and back wall of the box || just above the con
veyor 22 with its lower end sloping over the con
veyor 22 as at 46. This prevents snow from
caking onto the edge portion of the conveyor 22
and the chains 36 thereof.
A fan housing 4'! is secured to the end Wall
l3 of‘ the box II and this is provided with the
stack 43 having the swivelled elbow 49 at its upper
end. In the housing 41 and on the shaft 50 is
the blower fan 5|. The outer end of the shaft
Bil is provided with the small sprocket 52 over
which the chain 53 from the sprocket 29 is trained.
Thus the fan 5| is also driven by the shaft 21.
Obviously as snow comes up on to the plow 55
2
2,116,945
bottom l6 as the plow is moved into snow, the
impeller 2| shoves the same backwardly onto
the conveyor 22 which carries the snow laterally
into the fan housing 41, where the fan 5| blows
the same up the stack 48. The snow discharges
from the elbow 49 laterally of the roadway.
A slightly modi?ed form is suggested in Figures
5 and 6 wherein an inclined chute 54 is pro
vided. This chute is provided with the side walls
10 55 and is connected to the lower portion of the
box II. A brace 56 extends between the chute
and the end wall l3 of the box II in this modi
?ed form. The conveyor 22 has its upper flight
slightly elevated above the upper ?ight of the
15 conveyor 51 of the chute, which conveyor involves
the endless chain 58 and connecting slats 59, the
chains being trained over sprocket 60 on end
shafts 6|—62 of the chute. The upper flights of
the chains pass over the chute 54 while the lower
20 ?ights pass under the chute. Obviously snow
is elevated in this chute and discharges from the
upper end thereof to the side of the roadway.
While the foregoing speci?cation sets forth the
invention in speci?c terms, it is to be understood
25 that numerous changes in the shape, size and ma
terials may be resorted to without departing from
the spirit and scope of the invention as claimed
hereinafter.
Having thus described the invention what is
claimed as new is:
In a snow plow, a scoop-like plow structure
adapted to scoop up snow in the front end there
of and including side walls and a rearwardly and
upwardly inclined bottom, a rotary impeller ex
tending between said side walls and across said
bottom midway of the latter for feeding the
scooped up snow rearwardly of said bottom, a box
like casing secured to the rear end of said struc 10
ture to extend across the same and having an
open front for receiving snow from said structure,
and a bottom below the rear end of the bottom
of said structure, a travelling conveyor mounted
in the bottom of the casing to extend from side
to side thereof with the upper run thereof flush
with the rear edge of the bottom of said struc
ture, a fan casing mounted on one side of the
?rst mentioned casing and having an open side
facing the discharge end of the conveyor and into
which the conveyor directly discharges, a dis
charge pipe extending from the top of the fan
casing, and a fan rotatable in said Ian casing to
force the snow discharged therein out of said dis
charge pipe.
25
SHERMAN B. HITCHENS.
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