Year: 1899

page_text: Fig. 3 a corresponding device for operating the scoop wheels.
The device is attached in the usual way to the front of a car, consisting of the
frame a and the wheels b.
c is an engine for operating the snow plow, driven by steam, gas, hydro
carbon, or the like. Two scoop wheels which will be more particularly,
described, are secured to a frame e in such a way, that their shafts f lie
vertically above each rail, and, at the same time, parallel to each other.
The construction of the scoop wheels is as follows:
The scoops, seen from the front, are arranged tangientally around a certain
circle lying concentrically to the shaft (Fig. 2), and are slightly curved in their
length (Fig. 1). They are of such shape that only, their front ends d' give the
wheel a conical shape, whilst the back ends have upper edges running parallel
to the rails, so that this latter part of the wheel is of cylindrical shape.
The scoops are facing the car and terminate in an upright wall d, with which
they can be firmly connected. As there is very little space at the rear end of
the upright wall do, the scoops penetrate with their cutting edges into the snow
masses, wthout finding considerable resistance.
If snow clearers are known which rotate against each other-of different con-
struction than here described-by means of which the snow, lying upon the rails
is thrown off into two different directions, being of great advantage upon flat
land this method of operation will prove unsatisfactory and insufficient in all
cases where the snow masses have to be thrown off into one direction only, viz.
where the rails run along a slope or a mountain.
The wheels, which fulfill both tasks, operate as follows:
The driving arrangement for the scoop wheels is such, that the direction of
rotation can vary.
In Fig. 3, for instance, the scoop wheels rotate against each other by means
of the gear g, i, h, k, and the shafts of the wheels and are driven by the
motor c, but besides the wheels g, h being so arranged, that they can be disengaged,
a second driving arrangement, for instance, by means of sprocket wheels, m 1 m¹,
is also provided, by which, if one of the wheels be disengaged and one
of the pairs of chain wheels engaged, the scoop wheels will rotate in the same
direction.

page_text: In this case, one of the scoop wheels will carry the snow masses towards the
other, which will then throw off the snow from the rails.
It is desirable to give the scoop wheels a speed, which is two and one half up
to four times as great as that of the car wheels.
Dated this 24th day of July 1899.
AUPAD BAUER,
Agent for Applicant.
414
Improvements in Snow-ploughs.
I, JOHANN GEORG. WENIGER, Mill-possessor, of Mambach, near Zell, in the
Grand-duchy of Baden, Germany, 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 my invention is to clear the track way from snow masses, accord-
ing to a new and improved method.
Referring to the accompanying drawings:
Fig. 1 shows a cross section,
Fig. 2 a front view,
Fig. 3 a corresponding device for operating the scoop wheels.
Fig. 4 shows a perspective view of the scoop wheel,
Fig. 5 à section of the same.
Fig. 6 shows a view and
Fig. 7a horizontal section of a modified arrangement.
The device is attached in the usual way to the front of a car, consisting of the
frame a and the wheels b. e is an engine for operating the snow plow, driven by
steam, gas, hydro, carbon or the like. Two scoop wheels d, which will be more par-
ticularly described, are secured to a frame e in such a way that their shafts lie
vertically above each rail and, at the same time, parallel to each other."
The construction of the scoop wheels is as follows:
The scoops, seen from the front, are arranged tangentially around a certain
circle lying concentrically to the shaft (Fig. 2) and are slightly curved in their
length (Fig. 1). They are of such a shape that only their front ends d' give the
wheel a conical shape, whilst the back ends have upper edges running parallel
to the rails, so that this latter part of the wheel is of cylindrical shape.
The scoops are facing the car and terminate in an upright wall &, with which
they can be firmly, connected. As there is very little space at the rear end of
the upright wall, the quickly rotating scoops penetrate with their cutting edges
into the snow masses without finding much resistance.
In consequence of the conical shape of the wheels, the scoops will first produce
a boring effect performing their work gradually, finally causing the cylindrikal
back end of the scoop wheels to completely clear the rails from the snow.
tangential position of the scoops permits of quickly throwing off the caught snow
masses.
The
If snow clearers are known which rotate against each other of different con-
struction than here described-by means of which the snow, lying upon the rails
is thrown off into different direction's, being of great advantage upon flat
land this method of operation will prove unsatisfactory and insufficient in all
cases where the snow masses have to be thrown off into one direktion only, viz.
where the rails run along a slope or a mountain.

page_text: The wheels, which fulfill both tasks, operate as follows:
The driving arrangement for the scoop wheels is such that the direction of
rotation can vary.
In Fig. 3, for instance, the scoop wheels d rotate against each other by means
of the gear g, i, h, k, the shafts of the wheels g and h being driven by a motor.
Besides the wheels g, h being so arranged, that they can be disengaged, by means
of a coupling, a second driving arrangement, for instance by means of sprocket
wheels, m, m' with couplings is also provided. If the wheels 9,
disengaged and the pairs of sprocket wheels engaged, the scoop wheels will rotate
in the same direction.
h are
In this case, one of the scoop wheels will carry the snow masses towards the
other, which will then throw off the snow from the rails.
It is desirable to give the scoop wheels a speed, which is two and one half up
to four times as great as that of the car wheels.
Instead of arranging the scoop wheels parallel to each other (as has heretofore
been done), I arrange also the wheels d and d', which are driven by pinions a, b,
and c in such a way that they lie behind each other, so that as seen in Figs. 6
and 7, the shafte of the scoop wheel d exceeds the shaft e¹ of the scoop wheel d'
by the length of the scoop wheel d. It is advisable to arrange the two shafts e
and el at such a distance from each other that the scoop wheel & appears to be
moved into the surface of revolution of the scoop wheel .
The invention has the advantage that, for the purpose of clearing the track
from the snow, one of the two scoop wheels, viz. the front wheel, does the pre
liminary work for the back wheel. The plow will act like two drills, whose shafts
are arranged at a certain distance from each other. One of the two drills will
allways do the preliminary work for the other, both making an oval cavity into
the obstructing obstacle and finally removing the mass, whereby the resistance
is more easily overcome than in the case of two scoop wheels, covering them-
selves in their longitudinal projection.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. In snow plows, the combination of two rotating scoop wheels, lying parallel
to the rails with scoops, arranged tangentially, the said scoops giving each wheel
in front a conical shape and behind a cylindrical shape, for the purpose as
described.
2. In snow plows, the combination of two rotating scoop wheels lying parallel
to the rails, rotating in the same direction, for the purpose as described.
3. In snow plows, the combination with a revolving wheel d provided with
scoops, fixed to the shaft e, with a second revolving scoop wheel fixed to the
shaft the said second scoop wheel lying in the direction of the shafts behind
the first scoop wheel, for the purpose as described.
Dated this 90th day of Auril 1900