Year: 1888

page_text: Date of Application, 20th Nov., 1888
Specification Accepted, 21st Dec., 1888
A communication from ORANGE JULL, of the town of Orangeville, in the County
of Dufferin in the Province of Ontario, Canada.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E. do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The object of this invention is to produce a rotary snow plough which will slice
off the face of the snow bank, gather the snow thus sliced from near the ground,
and discharge it in a practically continuous stream to either side of the track as
may be desired.
The invention consists essentially of a cone shaped blade carrier, placed point or
apex forward into a proper support, the point or apex also leaning downwards, and
the axis of the cone being placed in oblique position when horizontally considered,
said cone carrying curved blades or channels that extend from near its apex toward
its base, in such manner that as the cone revolves, said blades or channels will act
against the surface of the snow bank, constituting lifting chutes for raising the snow
from near the surface of the ground and discharging it from their elevated ends.
The invention also consists in further details of improvement that are hereinafter
more fully specified.
Referring to the accompanying drawings, in which like letters indicate like parts,
Fig. 1 is a top view of the said snow plough.
Fig. 2 is a vertical longitudinal section, on the line c-c figure 1.
Fig. 3 is a cross section on the line k-k figure 1 and
Fig. 4 is a bottom view of said snow plough.
A represents a platform supported on suitable wheels B that are adapted to rest on
rails Cor on the ground if desired. The said platform A supports a second hood D
in which is hung the inclined cone E. The apex of this cone is at a, suitably stepped
in the lower part of the hood D. The base of the cone E has a projecting shaft b

page_text: which has its bearings in the back plate d of the hood and this shaft 6 has a toothed
wheel e which connects with suitable mechanism for imparting rotary motion to the
cone. The toothed wheel or pinion e is not an essential ingredient of this invention,
as other means for revolving the cone E may be employed.
;
Fig. 2 of the drawings shows the cone E in side view and shows also that the apex
of the cone points forward and that it is lower than the base of the cone or shaft b
in other words, vertically considered, the cone is inclined to have its apex lower than
the base, or have its axis inclined downward toward the apex. Horizontally
considered, as will be seen from the plan view figure 1, in which the cone is
represented by dotted lines, the apex is at one side of the hood while the base reaches
to the other side, or thereabouts; in other words, the axis of the cone horizontally
considered, is in an oblique position. By this position of the cone its acting surface,
for engaging the snow, is caused to face the bank of the snow in front, and to be
almost horizontally, above the bottom of the hood, as appears from an inspection of
figures 2 and 4. This cone so hung and positioned (and I may here remark that
when I speak of a cone for the puposes of this invention, I mean a tapering body
whether it be a full cone, or a truncated cone, or a tapering body with slightly convex
or concave faces, whose axis however shall be inclined and obliquely placed in
manner described) is provided with a series of blades which are in fact scooping
blades, being, as the drawings show lapped to form scoops for taking up the snow.
By preference these blades are curved, as in the drawing, the amount of curvature
towards the apex of the cone being greater than towards the base, as appears more
clearly from figure 3 of the drawing: moreover, the blades are narrower towards the
apex than towards the base, which is also clearly shown. By this means when the
cone is rapidly revolved and the platform A advanced towards the bank of snow by
suitable motive power, the blades will scoop up the snow from in front and beneath
them, and will convey it partly under the influence of centrifugal force, towards their
outer or upper ends from which the snow will be discharged. Whether these blades
are projections attached to a conical body portion, as in the drawing, or whether they
are formed by making helical grooves in a cone, is immaterial for the purposes of this
invention, provided that said grooves are limited in depth in such manner as to leave
the periphery from which the blades project substantially conical.
The hood D, in which the cone has its bearings, has sundry characteristics, which I
will now proceed to describe. In the first place, its upright side walls g g are set to
flare as in figure 1 so as to be farther apart at the front end of the snow plough than
towards the rear. This is for the purpose of enabling the snow plough to be moved
on curves so that it may not be jammed by the banks of snow between which it is
being propelled. Moreover to these flaring sides, there may be attached, when
occasion requires, additional flaring cheek pieces which cheek pieces are detachable
so that they may not be in the way when not required, their object when used being
to gather in a larger proportion of snow and make a wider path than without their
use would be possible.
The bottom of the hood D, which is arranged horizontally beneath the cone E as
in figure 2, is shown in figure 4 to be constructed with an oblique front cutting edge j
said edge being more or less approximately parallel with the vertical plane in which
is the axis of the cone, or otherwise placed obliquely, to have a shearing action on the
snow through which said blade is propelled.
The upper part of the hood D where the same extends over and above the cone, has
an opening (see figure 3) on one side, that is to say, on the side towards which the
blades rise, during the revolution of the cone, and this opening can be closed by a
gate or door m above which is a deflector n. When the gate m is opened the snow
will be thrown by the cone through the opening and discharged on that side of the
machine towards which the apex of the cone is pointed; but the top of the hood has
also another opening o near the opposite side, which opening o can be closed by a
gate p, (see dotted lines, figure 3); and in addition to this gate p there is a deflector
on the upper front portion of the hood on the side towards which the base of the cone
is placed, as appears from figure 1 of the drawing. When the gate m is closed and

page_text: the gate p is opened the snow will be thrown in the direction indicated by full arrows
in figure 3 of the drawing; but when the gate p is closed and the gate m is opened,
the snow will be thrown in the direction of the dotted arrows which are represented
in figure 3.
The front of the hood 1) at its upper portion has an inclined shield r (see figure 2)
which enables the plough to gather in a higher bank of snow and prevents the snow
from being thrown over the hood on to the driving gear. The lower lips of this
shield approaches closely to the base portion of the cone, and helps to confine the
snow which is being actuated by the operation of the machine to the cone, until
expelled therefrom in proper manner. The inclined shield serves also (as figure 1
shows) to hold the deflector q in the proper position.
It will be perceived that by the peculiar position of the cone E the blades f
practically extend from side to side of the plough (see figures 2 and 4) so that they
act on the entire front of the snow bank, serving to slice off the snow and conduct it
away either through the opening I or o by centrifugal force. The lower parts of the
blades assume positions substantially transverse to the track, or ground on which the
plough moves. This appears also from figure 2 of the drawing.
By the term "scoop-shape blades," as employed in the claims I intend to include
such blades or projections upon the conical body-portion of the plough as are provided
with edges so bent, turned or inclined with respect to the main portion of the blades
as to form slicing shares, and (in combination with the conical body-portion) lifting
chutes for the snow; and whether the bent, turned or inclined portion is formed by
fashioning or shaping the same integrally with the main portion of the blade by
casting or otherwise or whether it is formed by an auxiliary flange secured to said
main portion.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :-
1. In a snow plough the excavating cone such as E placed in an inclined position
and obliquely to the vertical and horizontal planes so that its apex points forward and
downward and laterally substantially as described.
2. In a snow plough a cone having curved blades which are narrower toward the
apex of the cone than toward its base substantially as described.
3. In a snow plough the cone such as E provided with curved scoop-shape blades
for lifting and throwing the matter excavated by centrifugal force.
4. In a snow plough the inclined cone E provided with curved scoop-shape blades
such as for lifting and throwing the matter excavated by centrifugal force
substantially as described.
5. The cone E having curved lifting blades the curvature of said blades being
greater toward the apex than toward the base of the cone substantially as described.
6. The combination of the cone E and its blades with the hood having openings lo
and gates m p substantially as and for the purpose described.
7. The combination of the cone E and its lifting blades with the hood D having
openings o doors p and top deflector 9 substantially as and for the purpose specified.
8. The cone E having scoop-shaped blades that are narrower towards the apex
than towards the base of the cone substantially as and for the purpose described.
9. The hood D of the snow plough the same being provided with the downwardly
and backwardly inclined front shield r and overhanging lips substantially as and for
the purpose specified.
10. In a snow plough the hood D having inclined front shield snow discharge
opening o and deflector 9 said deflector being connected with said shield substantially
as described.
11. A rotary snow plough consisting of the cone E having a series of scoop-shaped
blades said cone being located to have its apex point downwards and forwards,
combined with blades thereon which form slicing knives and lifting chutes
substantially as and for the purpose described.

page_text: 12. The combination of the rotary cone E having slicing and lifting blades with
a hood D having oblique edged bottom plate i opening 7 and doors m substantially as
and for the purpose specified..
13. The combination with the cone E which is placed diagonally downward and
forward across the forward end of the truck of blades f carried by said cone and
arranged to extend from side to side transverely across the face of the truck
substantially as specified.
14. The combination of the hood D having discharge opening with a revoluble
cone E and blades f carried by said cone said blades being arranged so that they will
assume positions transverse to the track substantially as specified.
Dated this 20th day of November 1888