An Improved Axle Spring for Cycles, Motor Cars, and other Wheeled Vehicles
Year: 1897

page_text: Date of Application, 7th Jan., 1897
Complete Specification Left, 6th Nov., 1897-Accepted, 11th Dec., 1897
PROVISIONAL SPECIFICATION.
"An Improved Axle Spring for Cycles, Motor Cars, and other
Wheeled Vehicles."
I, JAMES JOSEPH DUFFY of Carrickmacross, County Monaghan Ireland; Merchant do
hereby declare the nature of this invention to be as follows:-
This invention has reference to a new or improved axle spring for cycles,
motor-cars, and other wheeled vehicles for the purpose of increasing resiliency and
absorbing vibration in a simple and efficient manner.
In carrying out my invention I use ordinary spiral springs which I propose to
apply to the axle in the following manner.―
Over the ends of the axle are hung suitable fasteners or flaps consisting of
horizontal plates of suitable dimensions from which are suspended two, or more
spiral springs to the lower extremities of which is connected a horizontal plate
corresponding somewhat to the plate composing the fastener or flap.
Thus a kind of spring frame is produced on the ends of the axle and in the
case of application to a bicycle the free ends of the fork are attached to the lower
plate whereby they are practically suspended from the axle by means of the spiral
springs.
By this arrangement the expansive property of spiral springs is brought into
requisition instead of their compression capacity, which is the usual manner in
which such springs have been hitherto utilized for similar purposes.
It is obvious that my invention can be applied to motor-cars, and other wheeled
vehicles in a manner similar to that above described, that is by causing same to hang
or be suspended by means of spiral springs.
1000
COMPLETE SPECIFICATION.
"An Improved Axle Spring for Cycles, Motor Cars, and other
Wheeled Vehicles."
I JAMES JOSEPH DUFFY of Carrickmacross County Monaghan, Ireland; Merchant,
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:
Tation bes refaranus to a now or improved axle anring for cycles, motor

page_text: cars, and other wheeled vehicles for the purpose of increasing resiliency and absorbing
vibration in a simple and efficient manner.
In carrying out my invention I use ordinary spiral springs which I propose to
apply to the axle in the following manner. -
Over the ends of the axle are hung suitable fasteners or flaps consisting of
horizontal plates of suitable dimensions from which are suspended two or more
spiral springs to the lower extremities of which is connected a horizontal plate
corresponding somewhat to the plate composing the fastener or flap.
Thus a kind of spring frame is produced on the ends of the axle and in the
case of application to a bicycle the free ends of the fork are attached to the 1
lower plate whereby the bicycle is practically suspended from the axle by means
of the spiral springs.
By this arrangement the expansive instead of the compression property of spiral
springs is brought into requisition, the latter method being the usual one in which
such springs have been hitherto utilized for similar purposes.
It is obvious that my Invention can be applied to motor-cars, and other wheeled
vehicles in a manner similar to that above described :-that is by causing the vehicle
to hang or be suspended instead of resting on spiral springs.
The Accompanying Drawings shew more readily the nature of my said Invention
and illustrate its application to the ordinary springs of a vehicle such for example as
a side car, or dog cart.
A is the frame attached to the under surface of the spring B, by means of
straps B¹. On the lower plate of the frame are secured the spiral springs C, C, the
upper ends of which are attached to the plate D carried on the axle E.
Thus it will be seen that the vehicle is practically suspended to the axle by means
of the spiral springs as already explained.
For the purpose of steading the improved spring frame, an L piece F is secured to
the axle, the vertical arm of which is provided with a slot F¹ in which engages a
stud F2.
This piece acts as a guide and prevents any tendency to lateral
oscillation.
This addition however is not necessary in case of heavy vehicles, or carts with
rigid springs.
It is obvious that my improved spring frame may be applied to vehicles
without the intervention of the ordinary springs illustrated in the Accompanying
Drawings.
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 :-
The use and application in connection with cycles and other wheeled vehicles of 4
spiral springs arranged and operating in the manner substantially as herein
described and illustrated in the Accompanying Drawings.
Dated this 5th day of November, 1897.