Improvements relating to Apparatus for Stopping and Restarting Cars and other Vehicles.
Year: 1891

page_text: Date of Application, 22nd Sept., 1891
Complete Specification Left, 22nd June, 1892-Accepted, 23rd July, 1892
PROVISIONAL SPECIFICATION..
Improvements relating to Apparatus for Stopping and Restarting
Cars and other Vehicles.
I GEORGES GUÉROULT of 95 Boulevard Beaumarchais Paris in the Republic
of France Manufacturer do hereby declare the nature of this invention to be as
follows:-
This invention relates to a novel form of rope brake which permits of a part of
the energy destroyed by the more or less instantaneous stoppage of the movement
of rotation of the wheels of a vehicle being utilised for restarting.
In carrying out my invention on the nave of the wheel is secured a pulley of a
larger diameter than the nave.
On the pulley is wound from right to left one or more turns of a cord tapered
to a profile corresponding to the decreasing resistance. The thicker end of the
cord is secured to a spring carried by a cross bar. The thin end of the cord may
be pulled by the driver.
A second tapered cord is wound from left to right (that is to say in the reverse
direction to the first round the nave. The thick end of this cord is also secured
to the end of the spring the other end being led to the driver.
While travelling under normal conditions the cords will be slack and the nave
turns without being gripped by the cords. If the driver wishes to stop the vehicle
he will pull on the end of the second cord which will grip the nave and stretch the
spring sufficiently to stop the wheel from turning. He then pulls on the pulley
cord which in its turn tightens thus neutralizing the effort of the nave cord and
the vehicle is stopped.
For starting the driver has only to first slack the nave cord and then by degrees
slack off the pulley cord. The spring in contracting by means of the cord turns
the wheel in the normal direction of travel.
This arrangement may be applied to each of the four wheels of a vehicle with
suitable combinations for simplifying the work of the driver.
By the above arrangement I substitute practically for the ordinary brake block
a rubber or metal spring or a piston with compressed air or other medium for
storing power.
Dated this 22nd day of Sentember 1891
NEWTON & SON,
Agents for the Applicant.
. COMPLETE SPECIFICATION.
Improvements relating to Apparatus for Stopping and Restarting
Cars and other Vehicles.
I, GEORGES GUÉROULT of 95 Boulevard Beaumarchais, Paris, in the Republic
of France, Manufacturer, 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 :-
This invention relates to a novel form of rope brake, which permits of a part
of the energy destroyed by the more or less instantaneous stoppage of the
movement of rotation of the wheels of a vehicle, being utilized for restarting.
The principle of my invention is illustrated in Figs. 1 and 2 of the drawing
bereunto annexed.
Fig. 1 is a face view of the arrangement mounted upon a wheel.
י
01

page_text: R is a wheel of any vehicle. M is the nave of the wheel, upon which is secured
a pulley P of a larger. diameter than the nave M. On the pulley P is wound,
from right to left, one or more turns of a cord, tapered, to a profile corresponding
to the decreasing resistance. The thicker end of the cord is secured, at o, to a
spring r, carried by a cross bar F. The thin end c of the cord may be pulled by
:the driver.
A second tapered cord is wound from left to right (that is to say, in the reverse
direction to the first) round the nave. The thick end of this cord is also secured
to the end o of the spring r, the other end being led to the driver.
While travelling under normal conditions, the cords will be slack, and the nave
turns without being gripped by the cords. If the driver wishes to stop the vehicle,
he will pull on the end c; the cord will grip the nave M, and stretch the spring
sufficiently to stop the wheel from turning. He then pulls on the cord C, which,
in its turn, tightens, thus neutralising the effort of the cord c. The vehicle is thus
stopped.
For starting, the driver has only to first slacken the cord c, and then by degrees
slack-off the cord C. The spring r, in contracting by means of the cord C, turns
the wheel R in the normal direction of travel. This arrangement may be applied
to each of the four wheels of a vehicle, with suitable combinations for simplifying
the work of the driver.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. The stopping and starting gear consisting of a spring, or its equivalent, and
cords arranged in connection with the nave, of the wheel or wheels of a vehicle, all
substantially as described and illustrated.
2. The use of a tapered cord wound round a pulley having a larger diameter than
the axle, and having for its object the restarting of any vehicle to which my
system may be applied.
Dated this 22nd day of June 1892.
NEWTON & SON,
Agents for the Applicant.