Improvements in or relating to the Traction or Propulsion of Road Vehicles and Agricultural Implements.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to the Traction or Propulsion of Road
Vehicles and Agricultural Implements.
I, THOMAS JONES, of 223, Camden Road, London, N W., in the County of
Middlesex, Gentleman, do hereby declare the nature of this invention to be
as follows
This invention relates to improvements in apparatus for attachment to draught
vehicles, for the purpose of reducing the strain on the horse or animal employed
for diawing the vehicle in the latter case and allowing the motor to overcome
the inertia during alterations in speed in the former case, and also for enabling
the excess energy induced upon the vehicle at one period of its movement to be
utilised advantageously at another period when greater resistance has to be
encountered or when greater eftoit is required to move the vehicle, for example
in starting.
In carving my invention into effect as applied to draught vehicles I attach
the animal to the vehicle in any of the usual ways for keeping it in position,
and to enabling the vehicle to be tuined, while the draught from the animal
01 pulling effort I take up by means of traces or the like which I carry from the
animal to a diaw ba oi diaw bais arranged upon the vehicle in convenient
positions, and having in connection therewith movable pistons or plungers work-
ing in hydraulic or a compressing cylinders carried upon the body or fiame
of the vehicle
I arrange my cylinders with the plungers within them and preferably in the
form of intensifying cylinders in which varying areas of liquid are acted upon
by varying sizes of plungers or pistons according as the strain or pulling effort
may be uci eased or reduced, and by this arrangement I am enabled to provide a
minimum amount of travel upon the plunger or plunges and at the same time
to take up the full extent of pull or effort which the animal may from time to
time exert with greater or lesser effect I prefer to carry the end of my pistons
or plungers through a stuffing box or boxes on each cylinder and to encircle
the projecting end of the piston with a spring or springs to take up the shock
which may be induced upon the starting of the vehicle and also for the purpose
of returning the plungers to then positions when there 18 a cessation or slacken-
ing of the pulling effort of the animal within the shafts The spring or springs
is preferably placed between the first piston and the framework of the vehicle so
that the draw bar causes its compression as described.
I anange my cylinders with suitable tup or other valves for the purpose of
permitting one cylinder to come into action when the other has travelled to its
full extent or when the pressure upon one cylinder has reached its determined
amount
I arrange guide bars or guide rods upon the piston cross heads for keeping the
pistons in position and preventing displacement of the leaders and connections

page_text: attached to the cross-heads for operating the various tip or other valves which
I may employ
I arrange the cylinders and their connections in such a manner that when the
pulling effort of the animal is decreased or when a greater amount of energy 18
required to move the vehicle along, the pressure within the cylinders shall be
transmitted to the traction wheels of the vehicle in such a manner that the
excess energy which has been accumulated during previous movements operates
by cranks or equivalent devices the said traction or driving wheels as for example
providing the additional energy required in starting
When the devices are applied to motor vehicles with a separate motor the same
arrangement of cylinders and diaw bars are emploved and where the motor 19
in one with the vehicle the devices are connected by suitable means to the
traction or propelling shaft, and the energy is stored up by the hydraulic pressure
compressing springs or air as may be desired
I do not limit the application of my invention to any particular form or to any
special number of cylinders or plungers but I modify the number of and
arrangement of the cylinders and their connections to suit the type of vehicle to
which my apparatus is to be attached, and further it is evident that agricultural
implements either propelled mechanically or drawn may have the improved
devices applied without departing from the subject of the present invention
D
1
1000
Improvements in or relating to the Traction or Propulsion of Road
Vebicles and Agricultural Implements.
I, THOMAS JONES, of 223, Camden Road, London, NW, Gentleman, do hereby
declare the nature of this invention and in what manner the same is to be pei-
formed, to be particularly described and ascertained in and by the following
statement:
This invention relates to improvements in apparatus for attachment to draught
vehicles, for the purpose of reducing the strain on the house on animal employed
for drawing and starting the vehicle
In the accompanying sheets of explanatory drawings.
Figure 1 is a side elevation, and
--
Figure 2 18 a part plan of a wagon having my draught strain checking
apparatus attached thereto.
Figure 3 18 a sectional elevation in detail of one method of constructing my
improved apparatus
In canying my invention into effect as applied to draught vehicles I attach
the animal to the vehicle in any of the usual ways for keeping it in position,
and for enabling the vehicle to be turned, while the diaught from the animal
and pulling effort I take up by means of traces or the like which I cairy from
the animal to a draw bar A oi draw bais aanged upon the vehicle B in con-
venient positions, and having in connection therewith movable pistons o1
plungers, CC working in hydraulic or pneumatic cylinders, D, D carried
upon the body or fame of the vehicle
I arrange my cylinders D, D' with the plungers C, C₁ within them and pie-
ferably in the form of differential cylinders in which varying areas of liquid are

page_text: acted upon by varying sizes of plungers or pistons C, C and by this arrange-
ment I am enabled to provide a minimum amount of travel upon the larger
plunge and at the same time to take up the full extent of the travel upon C
due to the duect pull or effort which the animal may from time to time exert
with greater or lesser effect upon the diaw bar A I prefer to canly the end of
my pistons or plungers through a stuffing box or boxes E, E on each cylinder
and to encircle the projecting end of the piston C with a spring or springs F
to take up the shock which may be induced upon the starting of the vehicle
and also for the purpose of returning the plungers C, C to then positions when
there is a cessation or slackening of the pulling effort of the animal within the
shafts. The spring or springs FI place preferably between the piston C and
the framework G of the vehicle so that the draw ba A causes its compression
as described
I arrange guide bars or guide 1ods H upon the piston cross heads K for
keeping the pistons in position and preventing displacement of the leaders and
connections attached to the crossheads
I arrange my cylinders and their connections in such a manner that when
the pulling effort of the animal is decreased or when a greater amount of energy
is required to move the vehicle along, the pressure within the cylinders takes up
the sudden shock and the spring on spings become compressed or released in
such a manner that the excess energy which has been accumulated during the
previous movements operates to force back the plungers to the normal working
position.
I do not limit the application of my invention to any particular form or to any
special number of cylinders or plungers but I modify the number of and
arrangement of the cylinders and their connections to suit the type of vehicle to
which my apparatus is to be attached, and further it is evident that agricultural
implements may have the improved devices applied without departing from the
subject of the present invention
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 diaught apparatus for attachment to vehicles agricultural implements
and the like, the combination and airangement of a diaw bar which communi-
cates its motion or travel to a plunger or plungers working within a cylinder o
cylinders and having a spring or springs in connection with the
same for
enabling a minimum stroke of the sping compressing plunger to be made with
a maximum travel or movement of the diaw bai to which the animal is attached,
substantially as and for the purposes herein before described and as illustrated
in the accompanying drawings.
2. The combination of a travelling crosshead attached to a diaw bai hydraulic
01 pneumatic plungeis and cylinders in connection therewith for the purpose of
absorbing the shock upon the draw bar and for providing a small compression
of a spring loaded plunger with a comparatively long tiavel of the diaw hai
substantially as hereinbefore described, and as illustrated in the accompanying
drawings