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Патент USA US2108134

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Feb. 15, 1938.
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w. A. McNUL-ry
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2,108,134
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Filed OC’C. 13. 1936
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Feb. 15, i938.
w. A. MCNULTY
2,108,134@
SNOW PLOW
Fixed oct. 15, 193e
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.2,108,134
Patented Feb. 15, 1938
UNITED STATES PATENT OFFICE
2,108,134
SNOW PLOW
William A. McNulty, Chicago, Ill.
Application October 13, 1936, Serial No. 105,374
2 Claims. (Cl. 37--36)
This invention relates to Snow plows and more
particularly to snow plows adapted for use with
railway equipment.
In removing snow from a railway right of way
5 it is desirable to remove the snow from between
the rails and this may be done by causing the
Hanger blades of a snow plow to pass between the
rails, but because of track intersections, switches
and the like it is essential that the ñanger plates
10 and the blades thereon be capable of being re
tracted from between the rails when approaching
track intersections and switches and the like so
as to prevent the flangers from jamming on the
rails intersecting those between which they are
15 operating, and therefore one of the objects of my
invention is to provide a novel snow plow wherein
the flangers may be operated between the rails
but which may be retracted from between the
rails to clear intersecting rails, switches and the
20 like.
It is desirable to remove snow as close as pos
sible to the road bed but at the same time the
hanger blades must be kept free from the ties
and the like of the road bed and hence another
2
object of my invention is to provide a snow plow
wherein the iiangers may be lowered into a -defi
nite position relative to the road bed so that sub
stantially all of the snow between the rails may
be removed without the fiangers striking the ties
30 or the like of the road bed.
Another object of my invention is to prevent
derailing of the locomotive or the like to which
my snow plow is attached if the flangers strike
an obstruction on the road bed.
35
Heretofore it has been proposed to provide de
vices for raising and lowering the ?langers of a
snow plow associated with a locomotive or the
like and it has been proposed to bring this about
by pressure operated means, but heretofore such
40 pressure operated means have been located in
such a position that snow dug up by the plow
could contact therewith and this impaired proper
operation of the pressure operated means, and
hence another object of my invention is to ern
4 Ul ploy pressure operated means to elevate and lower
the flangers of a snow plow from and to operative
position and to so position such pressure operated
means that snow dug up by the plow is prevented
from contacting therewith and impairing opera
50 tion thereof.
It is not only desirable to remove snow from
between the rails of a railway right of way but
also to spread snow so removed well away from
the right of way, and a further object of my in
55 vention is to spread snow removed by a plow well
beyond the sides of the rails of the right of way,
and an object ancillary to the foregoing is to
associate wings with the i‘langers of the plow so
that snow removed by the flangers will pass onto
the wings to be dispersed well to the side of the Gl
rails of the right of way, and a still further object
is to so arrange the wings that they will be re
tracted from or advanced into operating posi
tions along with the movement of the flangers of
the plow into and from operative position, and
an object ancillary to this is to move the wings
into and to maintain the wings in operative posi
tion by pressure operated means also located to
prevent snow removed by the plow from impair
ing proper operation thereof.
15
Still further objects of the invention are to
elevate and maintain elevated the ñangers of a
snow plow by pressure operated means whereby
the ñangers will be supported for movement rela
tive to the road bed and other parts of the plow 20
when in operative position; to interconnect the
flangers and wings of my improved snow plow and
thereby enable the flangers and wings to be syn
chronously moved into and from operative posi
tion; to provide a snow plow which may be ex- 25
peditiously attached or removed from a locomo
tive or other railway equipment; and to provide
a novel snow plow of simple and economical con
struction an-d efficient and positive operation.
A selected embodiment of my invention is illus
trated in the accompanying drawings wherein
30
Fig. 1 is a side elevational view in which my
novel snow plow is shown mounted on a frag
mentally illustrated locomotive;
Fig. 2 is a top plan View of my novel snow plow; 35
Fig. 3 is a rear elevational view;
Fig. 4 is a sectional view taken substantially on
the line 4-4 on Fig. 3; and
Fig. 5 is a detail view similar to Fig. 1 showing
another means for operating my novel snow plow. 40
My novel snow plow is preferably substituted
for the usual pilot of a locomotive or the like and
to this end the pilot is removed and my novel
snow plow is fastened to those portions of the
locomotive or the like to which the pilot is usually 45
attached.
In this way I am enabled to attach
my novel plow to the locomotive without having
portions of the plow projecting into the path of
the snow being removed from the right of way by
my plow whereby dispersion of the snow well to
the sides of the railway right of way is not im
paired by parts of the plow. To this end my
novel plow includes a transverse beam l0 which
may be bolted or otherwise suitably secured to
the frame of the loco-motive in the position where 55
2
2,108,134
the usual pilot beam of the locomotive is secured.
The beam i0 is arranged at the rear end of my
plow and at the forward end thereof a carrier
beam Il is provide-d and these beams are inter
connected adjacent their ends to side beams I2
and IS. Reenforcing beams I4 and I5 are pro
vided intermediate the side beams to extend par
allel to the side beams between the carrier and
rear beams II and I0 whereby a rigi-d frame is
10 provided.
As best shown in Fig. 4, the forward ends of
the beams I2, I3, I4 and I5 are bent to provide
downwardly extending legs I6, I'I, I8 and I 9, re
spectively, and the lower ends of these legs are
15 bent rearwardly to provide foot portions or stops
2U, 2l, 22 and 23. The legs I6, I'I, I8 and I9 do
not extend at right angles to the main extent of
the beams I2, I3, Iâ and I5 but are inclined as
shown in Fig. 4 for a purpose to be explained.
As best shown in Fig. 2, the forward ends of the
beams I4 and I5 are arranged forwardly of the
forward ends of the beams I2 and I3, the purpose
of which will also be explained.
A pair of flanger plates 24 and 25 are pro
25 vided which are adapted to be arranged in side
by side relation, the plate 24 being rested on the
forward faces of the legs I6 and I'I and the
plate 25 being rested on the forward faces of the
legs I8 and I 9. Inasmuch as the leg I8 is for
30 wardly of the leg IB and the leg I9 is forwardly
of the leg I 'I the flanger plates 24 and 25 are
disposed in angular relation With respect to
each other when these plates are rested on the
front faces of the legs and the apex defined by
35 the angular relation of these plates is located
substantially medially of the plow. The upper
edges of the flanger plates 24 and 25 are rolled
to provide deflectors 26 and 21, the purpose of
which is explained hereinafter.
A pair of angle brackets 28 and 29 are ar
40
ranged in side by side relation to extend up
wardly from the lower edge of the flanger plate
24 adjacent the inner edge thereof. These
brackets are disposed on the rear face of the
45 ñanger plate 24 and are spaced apart sufficiently
to receive the leg I8 therebetween. The angle
brackets 28 and 29 are securely fastened to the
ñanger plate 24 by rivets or the like. Another
pair of angle brackets 30 and 3| are similarly
50 positioned on the flanger plate 25 and receive
therebetween the leg I9.
As best shown in Fig. e, the width of the par
allel portions of the angle brackets 3@ and 3| is
of greater extent than the thickness of the leg
55 I9 and bolts 33 and 3s extend between the par
allel portions of the brackets 3l] and 3l rearward
ly of the rear face of the leg I9. These bolts
respectively pass through sleeves 35 and 35 that
are disposed between the parallel portions of the
I 'I and i9. The sleeves as 35 are adapted to en
gage the stops as 23 to limit downward move
ment of the ñanger plates as 25 and when the
sleeves as 35 engage the stops as 23 the flanger
plates are disposed in predetermined relation 5
with the road bed.
The rails R and R’ are mounted cn ties T and
as the locomotive or the like to which my novel
plow is attached travels along the rails R and R’
the iianger plates are adapted to remove snow
from between these rails. inasmuch as wear will
be greatest at the lower leading edges of the
ilanger plates
and
flanger blades 3? and 38
are detachably connected at the lower leading
edges of the ñanger plates. By reason of the
removable mounting of these íianger blades they
may be removed and replaced when they become
worn. A recess S9 is provided in the flanger
blade 3l and a recess ¿lû is provided in the ñanger
blade
The rails R and R’ respectively pass
into these recesses when the ñanger plates 2d and
25 are lowered and the sleeves as 36 rest on the
stops as 23. When the sleeves as 3Q rest on the
stops as 23 the inner edges of the notches 39
and [se just clear the top of the rail and the por
tions of the iianger blades 5l and 38 interme
diate these recesses are disposed between the
rails and act to remove substantially all the
snow from between the rails R and R’ without
coming in contact with the ties T or the like be 30
tween the rails. Inasrnuch as the stops 23 are
rigid it will be apparent that the f‘langer blades
of the flanger plates are accurately positioned
thereby relative to the surface of the road bed,
and this prevents injury to both the blades and
the road bed which would probably result if the
blades could contact with the road bed.
It has been explained that it is desirable that
the flanger blades be arranged so that they can
be elevated and lowered se that when rails in
tersecting the rails R and R' are approached or
when a switch is approached the fianger blades
31 and 33 may be retracted from between the
rails and thereby be prevented from striking
such intersecting rails or the like. To this end
the lower ends of chains lli and ¿l2 are connected
to the rear face of the flanger plate 213 and simi
larly chains ¿i3 and ¿Il are connected to the rear
face of the lianger plate 25. The upper ends
of the chains 4i and ¿l2 are bolted cr otherwise
suitably secured to the outer free end of an
arm 45 and the upper ends of the chains d3 and
44 are similarly connected to the outer free
end of the arm
The rear ends of the arms
#l5 and 46 are fast to a rock shaft ¿l mounted
in brackets ‘i8 and ¿lâ extending upwardly from
the carrier beam IE.
I8 through the angle brackets 28 and 29. Fur
thermore, similar' pairs of angle brackets are
provided adjacent the outer edges of the ñanger
plates 24 and 25 and through these angle brackets
70 the plates 2d and 25 are connected to the legs
i6 and Il in the just described manner.
Thus the danger plate 2li is mounted for sub
stantially vertical movement along the legs i6
and i8 and the flanger plate 25 is mounted for
An arm ‘i8 extends upwardly from the rock
shaft 4l adjacent the bracket e8 and the free
end of this arm 'i3 is disposed in a bifurcation 60
in one end of the arm le, said arms being piv
otally interconnected by a bolt or rivet Sil or
the like. The other end of the arm 'ifi is con
nected to the piston rod 82 of the piston in the
cylinder Si which is mounted on the running
board of the locomotive well rearwardly of the
rear beam I@ of my novel snow plow. When
steam cr air under pressure is admitted into the
cylinder 8l in front of the piston therein this pis
ton is forced rearwardly and this rearward move 70
ment is transmitted through piston rod 82 and
arm 'I9 to the arm 78 whereupon the rock shaft
«il is rotated to move the arms 45 and 45 up
wardly and this, through the chains Lil and 42
substantially vertical movement along the legs
and 43 and M5, elevates the ñangers 24 and 25 75
60 brackets Sil and 3l and which bear on the rear
face of the leg I9. It will thus be seen that the
fia-nger plate 25 is connected to the leg i9 for
movement therealong but is held against dis
placement therefrom. 'In a. manner similar to
65 this the flanger plate 2li is connected to the leg
2,108,134
into their upper or inoperative position. When
pressure is applied in the back of the piston in
the cylinder SI the piston rod 82 and arm 44
are moved forwardly whereupon the rock shaft
41 is rotated to lower the arms 44 and 45. This
movement of the arms 44 and 45 is sufficient
to free the chains of tension and the flangers
drop down and rest upon the foot portions 25,
2l, 22 and. 23 and are free to move on the legs
ers 24 and 25 the wings are retracted into their
inner or inoperative position.
While the wings 'l0 and 'Ii will be moved into
their outer operative position upon lowering of*
the flangers 24 and 25 the pressure exerted
thereon by snow passing thereover- might be
I5, I'I, I8 and I9.
sufficient to force these wings inwardly.
It has been explained that it is desirable that
snow removed from the road bed of a railway
right of way be dispersed well to the sides of the
road bed. This can be effectively accomplished
by positioning wings adjacent the outer free edges
of the flanger plates 24 and 25 in such location
that snow picked up by the ñanger plates 24 and
25 and moved up over the front surface thereof
to the deflectors 2B and 2'I thereon will pass
20 onto the wings to be spread well to the sides of
the right of way. To this end brackets 62 and 63
depend downwardly from the side beams I2 and
I3 adjacent the forward ends thereof and pro
vide foot portions 54 and 65 in which the lower
ends of bars 66 and 5? are rockably mounted.
The brackets 4S and 49 include portions which
project beyond the side edges of the side beams
I2 and I3 and the circular portions 58 and 59
30
3
whereupon the wings ’I0 and 'II are moved into
their outer operative position. Contrawise when
the rock shaft 4l is rotated to elevate the flang
Hence 10
these wings are effectively held in their outer
operative position and to this end an upwardly
extending arm 58 is provided on the rock shaft
53 and one end of a link 59 is pivotally connected
to the free end of arm 58. The other end of the
link 59 is pivotally connected to the piston rod
6I of the piston in the cylinder 55 mounted on
the locomotive adjacent the cylinder 3i.
When air under pressure is admitted in front
of the piston in the cylinder 5G the piston rod 5i 20
is moved rearwardly and this, through the link
59, so moves the rock shaft 53 that the wings 'iii
and 'II are forced into and held in their outer
operative position. Furthermore when air is ap
plied in back of the piston in the cylinder S5 the 25
wings are retracted into their inner inoperative
position.
Inasmuch as the rock shafts 4l and 53 are
on the shafts 55 and 5'! are mounted therein, said
interconnected and as each is connected to a
shafts including portions 56’ and 61' that extend
above the brackets 48 and 49. The inner edges
pressure operated means, the cylinders 5i! and 30
8i', it is advantageous to operate the pressure
operated means simultaneously. Furthermore,
of wings 'Ill and 'II are secured to the bars 65
and E? and are movable with the bars to and
from operative position.
A bracket 32 extends between the carrier beam
II and the bracket 53 and a reenforcing bar 83
extends between a depending boss 84 on the side
beam I3 and said bracket 63. The brackets 82
and 83 serve to reinforce the bracket 63 and sim
40 ilar brackets are associated with the bracket 52.
The wings are adapted to be held in their outer
operative position to receive snow from the
flangers 24 and 25 and the de?lectors 26 and 2'I
thereon. Furthermore the wings are to move
45 into this outer operative position when the flang
ers are lowered to rest on the foot portions as 20.
Hence another rock shaft 53 is provided and it
is mounted in brackets 54 and 55 carried by the
side beams I2 and I3 respectively. An arm 5i)
50 depends downwardly from the rock shaft 53 into
a bifurcation at one end of the arm 5I and the
arms 55 and 5I are pivotally interconnected by a
bolt 5l or the like. An arm 5I) extends upwardly
from the rock shaft ¿Il and the adjacent end of
55 the arm 5I is pivotally connected thereto by a
bolt 52 or the like. Thus through the arm 5I
the rock shafts 53 and 4I are interconnected.
An inwardly extending arm 'I2 is secured at the
upper end of the portion E5' and another inward
60 ly extending arm 'I3 is secured at the upper end
of the portion 51. An upwardly extending arm
'I4 is fast on the rock shaft 53 and the arms 'I2
and 'lil are interconnected by a link 15. An
other arm 'I5 extends upwardly from the rock
65 shaft 55 and a link 'Il interconnects the free end
of this arm with the free end of arm 13. In this
manner the bars 66 and 61 are connected to the
rock shaft 53.
Therefore whenever the rock shaft 4'! is ro
tated to lower the arms 45 and 46 which results in
movement of the fiangers 24 and 25 into oper
ative position this movement is transmitted
through the arm 5I to the rock shaft 53 and
thence through the arms 'I4 and I6, links T5 and
75 'Il and arms 'I2 and 'I3 to the bars 66 and 67
the pistons in the pressure operated means are
adapted tol move in opposite directions in such
simultaneous operation thereof. Hence I pro 35
vide a valve V and I extend a pipe S5 from one
port in this valve to the front end of the cylinder
8| and I extend a pipe 8B from a cooperating
port in the valve to the rear end of the cylinder
60. I also extend a pipe B'I from another port in 40
the valve to. the front end of the cylinder 55 and
from a cooperating port in the valve I extend a
pipe 88 to the rear end of the cylinder 8i. A
supply pipe 89 leads from the valve V to a source
of supply of steam or air under pressure. The 45
valve V is of the type which may be moved into
a position so as to shut off flow to all cf the
ports or into a position such that flow may be
through the pipes 55 and 85 or into another po
sition where the flow will be through the pipes 50
8'! and 88.
In an arrangement wherein a device such as
the valve V is provided when it is desirable to
render my plow operative the valve is positioned
to admit pressure into the cylinder 8i through 55
the pipe 88 and into the cylinder 55 through the
pipe 8l whereupon the pistons in these cylinders
and the piston rods move in the manner similarly
described to dispose the flangers and the wings
in their operative position. When the hangers 60
or wings are to be moved into their inoperative
position the valve is positioned to cause ñow
through the pipes 35 and 85 whereupon the pis
tons in the cylinders 59 and 55 are moved in the
manner previously described. It will thus be 65
seen that the provision of a valve such. as the
valve V facilitates the operation of my novel
snow plow.
Another equally efficient means for operating
my snow plow is illustrated in Fig. 5 wherein the
cylinders 60a and Bia have only one source of
steam or air supply thereto through the pipes
85a and 38a respectively. The steam or air is
admitted to the pipes 86a and 88a by means of
a valve Va which controls the pressure from the
4
2,108,134
source of supply fed to the valve Va through the
pipe 89a. The piston in the cylinder 60a has an
angular piston rod Bla extending through the
end wall of the cylinder and connected to the
link 59. A coil spring Sii is mounted on the piston
rod within the cylinder and when the pressiu‘e
is released by the valve Va the spring forces the
piston to the right, Fig. 5. The opening in the
end of the cylinder through which the piston rod
10 passes is larger than the rod, permitting free
movement of air in back of the piston into and
out of the cylinder as the piston moves back
and forth. The cylinder Sia is constructed sim
ilar to the cylinder 63a and is provided with a
15 spring 9i about the piston rod 82a within the
cylinder.
As the valve Va is operated to admit pressure
into the cylinder 69a the same valve connects
the cylinder Bla to the atmosphere through the
20 pipe 88a.
Therefore the flangers 2d and 25 are
lowered and the wings 'lli and 'll are forced into
and held by the continued pressure in cylinder
59a in their outer operative position simultane
ously. As pressure is admitted to the cylinder
25 Sla by means of the valve Va and pipe 88a the
cylinder 50a is connected to the atmosphere
through the pipe 86a and the flangers are raised
and held in raised position by the continued pres
sure in cylinder Bla and the wings are folded
30 inwardly to their inoperative position simul
taneously. The structure disclosed in Fig. 5 for
operating the snow plow provides simple struc
ture and an equally as eiiicient structure as the
means shown in Fig. 1 for operating the snow
35
plow.
From the foregoing description it will be ap
parent that I have provided a snow plow which
will act to remove snow from between the rails
of a railway right of way and one which may
40 be easily elevated out of such operative position
when intersecting rails, switches or the like are
approached. Furthermore, those portions which
will be subjected to the greatest wear are ar
ranged so that they can easily be replaced. In
45 addition to the foregoing wings are provided
which are moved to and from an operative posi
tion when the ?langers of my plow are moved to
and from operative position, and these wings
serve to spread the snow well to the sides of the
50 right of way. The means for moving the wings
to and from operative position may be arranged
for adjustment so that the wings may be moved
into different positions relative to the hangers
which will control the amount to which snow
is spread to the sides of the right of way.
Another very important feature of my inven
tion is the manner in which the legs supporting
the ñangers are arranged. These legs are of
suñicient strength to resist the force which will
60 be impressed thereon by reason of the plowing
action, but if an obstruction is encountered these
legs will bend rearwardly and so fold under that
derailing of the locomotive is prevented. This is
also prevented by the manner in which the ?iang
ers are supported in operative position, that is to
say, the supporting of the iiangers for free move
ment on the supporting legs therefor away from
the stops which dispose the ñangers in proper
operative position.
While I have illustrated and described a se
lected embodiment of my invention it is to be
understood that this is capable of variation and.
modification and I therefore do not wish to be
limited to the precise details set forth but desire
to avail myself of such changes and alterations
as fall within the purview of the following claims.
I claim:
l.' A snow plow comprising a guiding and sup
porting frame, a pair of ?langer blades siidably
mounted upon the said guiding and supporting
frame and slidably guided thereby for movement
into lowered or eñective position and into raised
or ineffective position, a pair of wings pivotally
mounted upon the said guiding and supporting
frame, one adjacent the outer end of each of 15
the said flanger blades, for movement into
extended or eifective position and into folded or
ineffective position, rela-tive to the said hanger
blades, and means for simultaneously moving
both of the said f‘langer blades and both of the
said wings into and out of their eíîective positions,
said means including a rock shaft extending
horizontally across the said frame rearwardly
of the said ?langer blades, a pair of horizontally
spaced arms carried by the said rock shaft and 25
extending forwardly from the said rock shaft
above the said hanger blades, a pair of flexible
elements each attached to one of the said arms
and each attached to one of ‘the said ñanger
blades, a second rock shaft extending horizontally
across the said guiding and supporting frame
rearwardly of and parallel to the said first-named
rock shaft, means operatively interconnecting the
said rock shafts, means operatively interconnect
ing each of the said wings to the said second
named rock shaft, and means for rocking the
said shafts.
2. A snow plow comprising a guiding and sup
porting frame, a pair of iianger blades slidably
mounted upon the said guiding and supporting 40
frame and slidably guided thereby for movement
into lowered or eiiective position and into raised
or ine?iective position, a pair of wings pivotally
mounted upon the said guiding and supporting
frame, oneadjacent the outer end of each of the
said danger blades, for movement into extended
or eiîective position and into folded or ineffective
position, relative to the said ñanger blades, and
means for simultaneously moving both of the
said iianger blades and both of the said wings
into and out of their effective positions, said
means including a rock shaft extending hori
zontaliy across the said frame rearwardly of the
said iianger blades, a pair of horizontally spaced
arms carried by the said rook shaft and extend
ing forwardly from the said rock shaft above the
said ñanger blades, a pair of flexible elements
each attached to one of -the said arms and each
attached to one of the said Jdanger blades, a sec
ond rock shaft extending horizontally across the 60
said guiding and supporting frame rearwardly of
and parallel to the said first-named rock shaft,
a link mechanism operatively interconnecting the
said rock shafts, a link mechanism operatively
interconnecting each of the said wings to the
anism operatively interconnecting each of the
said second-named rock shaft, and means, includ
ing fluid-pressme operated pistons for rocking the
said shafts.
WILLIAM A. MCNULTY.
70
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