An Improved Spring for Wheeled Vehicles.
Year: 1892

page_text: Date of Application, 26th Apr., 1892
Complete Specification Left, 26th Jan., 1893—Accepted, 4th Mar., 1893
PROVISIONAL SPECIFICATION.
An Improved Spring for Wheeled Vehicles.
I, JAMES JOSEPH DUFFY, of Carrickmacross, in the County of Monaghan,
Ireland, Merchant, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object the use or introduction of an improved spring in
the construction of all kinds of wheeled vehicles, for the purpose of obviating
concussion, and reducing vibration to a minimum.
In carrying out my invention I propose to use ordinary spiral springs in conjunc-
tion with the flat and other ordinary springs at present employed. From these
spiral springs the body or seating portion of the vehicle is suspended, and by their
use a more elastic and spring vehicle is the result.
Dated this 25th day of Amil 1900
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.
COMPLETE SPECIFICATION.
An Improved Spring for Wheeled Vehicles.
I, JAMES JOSEPH DUFFY, of Carrickmacross, in the County of 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 :—
This invention has for its object, the use or introduction of an improved spring in
the construction of all kinds of wheeled vehicles for the purpose of obviating con-
cussion, and reducing vibration to a minimum.
In carrying out my invention, I propose to use ordinary spiral springs in conjunc-
tion with or without the flat, and other ordinary springs at present employed. From
these spiral springs the body or seating portion of the vehicle is suspended and by
their use a more elastic and springy vehicle is the result.
In order that my said invention may be more readily understood, I attach the
accompanying drawings, in which
Fig. 1, represents a perspective view of an ordinary family side car showing the
application of my invention; and
Fig. 2, shows the combined spiral spring, and body stay detached :-
a, a, are the ordinary body stays which instead of resting on the shafts in the
usual manner are prolonged in depth and carried underneath the shaft, to which
they are suspended by the spiral springs b, b, as shown, by means of suitable bolts
passed through the shaft and the stays, and screwed into either end of the spring,
the diaphragms on the ends of same being pierced and threaded for the purpose.
It is proposed to use as a rule four such springs (two at the back and two in front),
but it is obvious that a greater number may be used should occasion require.
It will be thus seen that the body, or resting portion of the vehicle is suspended
from these springs, while the shafts are carried by the ordinary flat springs hitherto
employed.
The spiral springs therefore in this case act as auxiliaries to the ordinary springs,
thus affording an unusually easy and agreeable sitting accommodation.
In the case of heavier vehicles my improved arrangement of springs may be used
alone or independent of other springs.

page_text: It is obvious from the above that the object of my invention is to effect the suspen-
sion of vehicles by means of spiral springs, thus relying on expansion rather than
compression, whereby greatly increased elasticity is obtained, and vibration
reduced.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I desire to have it under-
stood, that what I claim is :-
In connection with the mounting of wheeled vehicles of all kinds, the use and
application of spiral springs, in conjunction with or without the ordinary springs, in
the manner substantially as herein described and set forth.
Dated the 94th day of Januaro 1202
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.