Improvements in or connected with Motor Road Vehicles.
Year: 1899

page_text: Date of Application, 11th Dec., 1899
Complete Specification Left, 10th Sept., 1900-Accepted, 17th Nov., 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Motor Road Vehicles.
I, WILLIAM HUMPHREY WHEATLEY, of the Firm of Wheatley and Mackenzie,
Engineers and Patent Agents, of 40, Chancery Lane, in the County of London, do
hereby declare the nature of this invention--a communication to me from abroad
by Henri Cauzard, Manufacturer, of Troyes, (Aube), in the Republic of France,―to
be as follows:-
This invention for improvements in or connected with motor vehicles has for its
object to provide means for preventing the dust raised by the wheels of motor
vehicles from entering that portion of the atmosphere which is in the immediate
proximity of the passengers, even though they may be in an open carriage.
The entrance of the dust into the interior of the vehicle being largely due to the
vacuum produced at the rear through the displacement of air by the moving
vehicle; this invention comprises means for filling up, as rapidly as possible the
vacuum caused by the displacement of the air, by collecting the air in front of the
vehicle and conveying it to the back of the same.
In carrying out this invention a very large funnel or deflector of parabolic or
other form is fixed in front of the vehicle and collects the air, which is conveyed
to the rear by means of pipes running along the outside of the body of the vehicle,
or inside the same or, again, outside and inside. I can also combine this collec-
tion of air with suction of the air at the outlet of the pipes so as to avoid loss of
pressure, utilizing a portion of the driving power of the automotor for working a
blower, fan or an injector. The current of air collected at the front of the vehicle
can be assisted by other currents of air from an independent set of pipes containing
compressed air, proceeding from a blast engine actuated by the motor of the
vehicle, the pipes being arranged at various points in the body of the vehicle
which is to be protected from the dust and perforated with slots or holes, the
direction and form of which may vary according to the positions of the pipes, so
that the air currents may take a direction tending to throw the air raised by the
wheels out of that portion of the atmosphere immediately surrounding the
occupants of the vehicle in motion.
The air is preferably drawn in at the front and thrown off at the back or side
of the body of the vehicle. The currents of air are directed horizontally, so as to
prevent the dust from rising, obliquely downwards in order to cause the dust to
fall, or upwards, so as to oppose the entrance of the dust into the interior of the
vehicle.
The wheels of the vehicle are furnished with mud guards which are somewhat
wide and held against the body of the vehicle so as to prevent any dust being
thrown into the interior thereof.
The pipes conveying the collected air from the front of the vehicle, may be
perforated so as to guide the air in thin jets either horizontally or obliquely, with

page_text: the view of preventing any air charged with dust from reaching the interior
of the vehicle.
Dated this 11th day of December 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
I, WILLIAM HUMPHREY WHEATLEY, of the Firm of Wheatley and Mackenzie,
Engineers and Patent Agents, of 40, Chancery Lane, in the County of London, do
hereby declare the nature of this invention--a communication from abroad by
Henri Cauzard, Manufacturer, of Troyes, Aube, in the Republic of France, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
This invention for improvements in or connected with motor road vehicles has
for its object to provide means for preventing the dust raised by the wheels of
motor vehicles from entering that portion of the atmosphere which is in the
immediate proximity of the passengers even though they may be in an open
carriage.
The entrance of the dust into the interior of the vehicle being largely due to the
vacuum produced at the rear through the displacement of air by the moving
vehicle this invention comprises means for filling up as rapidly as possible the
vacuum caused by the displacement of the air, by collecting the air in front of
the vehicle and conveying it to the back of the same, then completing the action
of the air by injecting other air through the action of a pump or fan by means
of the motor of the vehicle, in order to act on such air so as to cause it to prevent
the cloud of dust from rising and entering the vehicle.
The accompanying drawing illustrates the application of this invention to motor
road vehicles with an open carriage.
Fig. 1 is a side view of the carriage with the parts for collecting and distributing
the air.
Figs. 2 and 3 are respectively back and front sectional views of the vehicle.
Fig. 4 is a longitudinal transverse section of the body of the air-distributing
conduit with junctions at each of the openings.
Figs. 5 and 6 are sections of air-distributing tubes each with a longitudinal slot.
Figures 4 to 6 are drawn on a slightly larger scale that the other figures.
In the front of the vehicle I arrange a large funnel a intended for collecting
the air and distributing it by means of the pipes 5 running along the sides of the
vehicle and under the body thereof in its longitudinal axis towards the back of the
vehicle or towards the back and at the sides of the vehicle.
The
This air is dispersed at the back being forced to pass through a conduit 2 which
stands up vertically or obliquely along the sides of the back of the vehicle.
pipe or conduit 2 is perforated to allow the air to escape in the direction of the
arrows h. The axial pipe 5 conducts the air into another pipe 1 likewise placed
at the back of the vehicle and standing up at the ends vertically or obliquely
along the sides and facing the wheels R for example. This pipe produces a second
stream of air in the direction of the arrows k.
The air collected by the funnel a as the vehicle moves is supplemented by the
injection of other air, effected by working a fan or pump by means of motive power
obtained from the motor of the vehicle, or again by operating a steam injector with
compressed air or other fluids according to what is employed in the vehicle. This

page_text: adventive air may be injected into the pipe system 5 and be distributed at the back
of the vehicle in the direction of the arrows h and k at the same time as that
caught by the funnel a. Or, again, this air may be distributed through the
conduits 3 and 4 laterally at the sides of the vehicle and in the direction of the
arrows and m, for instance. The pipe systems 1 to 5 may be independent or
joined together so as to obtain large air surfaces 1 2 3 4 in the desired
directions, for the purpose of driving the air charged with dust from the inside of
the vehicle.
0
The conduits 1 to 5 may be formed by pipes with junctions p (see Fig. 4) or
furnished with conical openings (Fig. 5) or again slotted longitudinally, or
provided with a longitudinal base (see Fig. 6) in the form of a wide longitudinal
slot. The air which escapes through these holes or slots forms a moving air-
screen shutting off the inside of the vehicle from the external atmosphere surround-
ing it.
In order to secure greater uniformity in the movable air screen in the case of
injection of air by a pump, fan or an injector, I convey such air into a bag made of
india-rubber or india rubber tissue before letting it escape into the channels 1, 2,
3, 4 and 5.
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. A means for preventing dust from entering motor road vehicles consisting
in filling up the vacuum created by the movement of the vehicle, by the arrange-
ment in the front or in any other suitable part of such vehicle, of an air collector
which conveys the air entirely to the back or to the back and to the sides of the
carriage by means of air-conduits which are open at the end or perforated or
slotted throughout their length.
2. A means for preventing dust from entering motor road vehicles consisting in
filling up the vacuum created by the motion of the vehicle, by collecting the air
with the assistance of a funnel placed in the front or at the side or in the front and
at the side of the vehicle and in adding to the body of air thus collected, air from
a fan, a pump or an injector operated by the motor or the motor fluid of the
motor carriage.
3. A means of preventing dust from entering motor road carriages, consisting in
distributing the air collected in the front of the vehicle, and the air injected by
a fan, a pump or an injector actuated by the motor or the motor fluid of the motor
carriage, in broad sheets through slots, holes or perforated junction pipes in the
conduits placed in the one case at the side and in the other at the back of the
vehicle, the said air currents being guided horizontally or obliquely for the pur-
pose of keeping the dust away from the inside of the vehicle.
Dated this 10th day of September 1900
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.