IMPROVEMENTS IN TWO-WHEeled Road VeHICLES
Year: 1883

page_text: LETTERS PATENT to Herbert John Haddan, of Kensington, Middlesex for an
Invention of IMPROVEMENTS IN TWO-WHEeled Road VeHICLES communicated
to him from abroad by Nicholas Bayard Clinch, of Florida, United States,
PROVISIONAL SPECIFICATION left by the said Herbert John Haddan at
the Office of the Commissioners of Patents on the 25th October 1883.
HERBERT JOHN HADDAN, of Kensington, Middlesex, "IMPROVEMENTS IN TWO
WHEELED ROAD VEHICLES," a communication to me from abroad by Nicholas
Bayard Clinch, of Florida, United States,
This invention relates to that class of road wagons, known generally as sulkies
or village carts, in which the body is supported by a single axle and two wheels,
and the object of the invention is to construct vehicles of this class, so that the
movements of the horse, causing the shaft to play up and down, will not be imparted
to the body.
The axle is of any suitable construction, and the shaft or pole frame extends
beyond the axle in the rear and ie pivoted thereto in any suitable manner. The
body is supported by springs of any suitable character, connected to the axle, or
when a frame is attached to the latter, to any part of said frame, and the connecting
bolts are are passed through slots in the bottom of the body, so that the latter may
be moved backward and forward upon its supports and secured after adjustment, so
as to bring the weight as nearly central with the axle as possible.
In the present instance a frame is combined with the axle, and consists of two
bara, projecting forward and supporting an arched bar, upon which the forward
end of the body rests.
As thus constructed the body rests upon springs supported by the axle at the
rear, and at the front upon the axle frame, while the shaft or pole frame is
pivoted to the axle in such manner that it can play freely independently of the
body.
To prevent the front portion of the frame from descending under its own weight
or that of the body, I connect it through the medium of springs, to standards, at
the rear end of the shaft frame, so that any weight tending to depress the forward
end of the frame will tend to draw outward the rods and thereby distend the
springs which are thus indirectly spring supports for the forward end of the body;
the latter therefore being supported both at the rear and at the front by springs.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Herbert John Haddan in the Patent Office on the 24th April
1884.
"IMPROVEMENTS IN
HERBERT JOHN HADDAN, of Kensington, Middlesex,
TWO-WHEELED ROAD VEHICLES," a communication to me from abroad by Nicholas I
Bayard Clinch, of Florida, United S.ates,
This invention relates to that class of road wagons, known generally as sulkies
or village carts, in which the body is supported by a single axle and two wheels,
and the object of the invention is to construct vehicles of this class, so that the
movements of the horse, causing the shaft to play up and down, will not be 1
imparted to the body.
.
In the drawing: Fig 1, is a sectional elevation of a village cart, illustrating the
invention. Fig 2, is a plan view, the body and springs removed, and Fig 3, is a
diagram illustrating a modification.
The axle A, is of any suitable construction, and the shaft or pole frame B extends 1
beyond the axle in the rear and is pivoted thereto in any suitable manner; as
shown, it is pivoted at x, to clips upon the axle. The body C, is supported by
springs D, of any suitable character, connected to the axle, or when a frame is
attached to the latter, to any part of said frame, and the connecting bolts a, are
passed through slots b, in the bottom of the body, so that the latter may be moved!
backward and forward upon its supports and secured after adjustment, so as to
bring the weight as nearly central with the axle as possible.
In the present instance a frame is combined. with the axle, and consists of two
bars d, d, projecting forward and supporting an arched bar e, upon which the
forward end of the body rests, as shown.
As thus constructed the body rests upon springs supported by the axle at the
rear, and at the front upon the axle frame I, while the shaft or pole frame B, is
pivoted to the axle in such manner that it can play freely independently of the
body.
To prevent the front portion of the frame I, from descending under its own
weight or that of the body, I connect it through the medium of springs 8, to
standards J, at the rear end of the shaft frame; for instance, the springs 8, secured
to the standards J, are also connected to rods m, pivoted at the forward end to
standards L, upon the frame I, so that any weight tending to depress the forward
end of the frame I, will tend to draw outward the rods m, and thereby distend the
springs 8, which are thus indirectly spring supports for the forward end of the
body, the latter therefore being supported both at the rear and at the front by
springs.
While this arrangement in no way interferes with the vibration of the shaft
frame upon its pivots, resulting from the vertical movements of the horse, such
motion instead of being communicated to the body as usual, is imparted in a
horizontal direction to the springs 8, which therefore contract and distend hori-
zontally, exerting upon the standards L, and upon the frame a varying horizontal
draft, but without any tendency to cause the forward end of the frame to rise
or fall,
Such connections as have been described may be varied while securing the same
result, it merely being necessary to attach one end of each spring to a portion of
the body or frame supporting the same, and the other end to a part of the shaft
frame. Thus in Fig 3, each spring e, is secured at the rear to the standard J, and
at the front to a stud h, upon the body. Or standards on the axle may replace the
standards L.

page_text: The cross bar G, of the shaft frame, and projections n, of the axle frame, will
serve as positive bearings for the body, when the weight therein is sufficient to
overcome the action of the springs in either direction.
It is best to vary the spring tension according to the weight to be carried, which
may be effected in various ways, for instance, each spring may be secured to a
rod v, passing through a stud p, upon the standard J, and provided with a nut q,
by turning which it may be drawn out to increase the tension upon the springs.
In some cases advantage results from the interposition of a spring w, between
the shaft frame and body at the front of the latter.
CLAIMS:
1. The combination in a road wagon, of a body supported upon the axle, a shaft
frame pivoted to the axle, and horizontal spring connections between the shaft
frame and the body or its supports, substantially as and for the purpose set forth.
2. The combination of the axle, frame I extending forward therefrom, springs
interposed between the body and the axle, abaft frame pivoted to the axle, and
spring connections between the shaft frame and the frame I, substantially as set
forth.
3. The combination with the axle and body supported thereon, of a frame
extending from the axle, and supporting the front end of the body, and provided
with standards L, and shaft pivoted to the axle and provided with standards J,
and rods and springs connecting the two standards, substantially as set forth.
4. The combination with the spring & interposed between the body and pivoted
shaft portions of a vehicle, of tension adjusting devices, for the purpose specified.
5. The body resting upon springs supported by the axle and adjustable
longitudinally, substantially as set forth.
6. The spring w, combined with the other features set forth.
7. The within described means of supporting the body of a two wheeled vehicle.
In witness whereof I the said Herbert John Haddan have hereunto set my
hand and seal this 23rd day of April A.D. 1884.
H. J. HADDAN (L.S.)