Improvements in Two-wheeled Vehicles.
Year: 1889

page_text: Date of Application, 20th Aug., 1889-Accepted, 12th Oct., 1889
COMPLETE SPECIFICATION.
Improvements in Two-wheeled Vehicles.
I, CULVER GILMAN THYNG, of Room 4 City Building city of Olean, County of
Cattaraugus, and State of New York, United States of America Manufacturer, do
hereby declare the nature of my invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement
My invention relates to improvements in two wheeled vehicles, and has for its object
the production of a simply constructed, two-wheeled vehicle, in which horse motion is
entirely obviated, and an easy riding and accessible vehicle produced at a minimum
cost, and to this end it consists, essentially, in the detail construction and arrangement.
of the parts, all as hereinafter more particularly described and pointed out in the
claims.
In describing my invention, reference is had to the accompanying drawing, forming
a part of this specification, in which, like letters indicate corresponding parts in all
the views.
Figure 1 is an isometric view of my improved vehicle, illustrating in full lines the
novel portion of my invention, and in dotted lines the usual body, wheels and top of
what is known as a Doctor's gig or cart.
Figure 2 is an enlarged perspective of the universal knuckle joint securing the ends
of the side and cross springs of my improved vehicle.
Figure 3 is a perspective of the detached connection or shackle of the knuckle
joint; and
Figure 4 illustrates the knuckle formed on the end of the spring.
a-represents the axle of my improved cart, preferably formed with the arched or
curved transverse portion, the crank arms-a-and angular bends---extending
outwardly from said cranks.
Mounted on the drop of the axle-a¹-is the clasp plate-g, to which, by clips—c,—
are connected the combined-C-and side springs-C-C. These springs are formed
at their extremities with the knuckle end--illustrated in Figure 4, and by means
of the shackle or joint-D,-are connected to the cross springs-B-B. The cross
springs are preferably semicircular in form, and mounted thereupon are bolsters-5-
and 6-which serve to support the vehicle body-B¹.
By reference to Figure 2 it will be noticed that the knuckle-02-slips over one
journal of the shackle-D,-and that the ears-C³-thereof are pivoted to said
journal by a bolt-,-allowing the same to oscillate with said bolt as a pivot.
The cross springs-B-B--are provided with corresponding knuckles E-secured
to the journal bearing-d2-of the shackle-D,-by a bolt-g-which forms a pivot
for said spring. By means of this connection to the knuckle joints formed upon the
side and cross springs, a compound universal knuckle joint is produced, permitting
the springs to move freely on their securing bolts as pivots in two planes at substan-
tially right angles to each other. By this movement, any jar of the vehicle is taken
up and all sway thereof is positively prevented since the movement of the springs is
easy and uniform.
One particular feature of advantage of my vehicle is its "low down." feature,
This "low
especially in connection with the amount of spring of said vehicle.
down" feature partially produced by the crank arm-a', is further increased by
the peculiarly-C-shaped portion-C-of the combined-C-and side spring. The
forward extremity of the spring-C,-extends outwardly from the axle, and conforms
to the height of the forward portion of the cart. By the peculiar arrangement of
springs, I thus secure a maximum amount of spring motion, great ease in use, and
at the same time bring the body low down to the ground, rendering it extremely
accessible.

page_text: In order to further facilitate access into the cart, I form the shafts-P-with the
low down bend-p-which preferably conforms to the contour of the body-B'.-The
rearward extremity-p-of the shackle-P-is connected to the axle-a-and prefer-
ably by clips-p,-thereby obviating the transmitting of any horse motion to my
improved cart.
In order to further secure the shafts, I prefer to use the bracing iron-p³-
which extends forwardly from the clip-2-and prevents the shaft from swaying.
This feature of transmitting the horse motion to the axle instead of the cart body,
is also a feature of great advantage. It will thus be understood that with a very
simple construction of parts, a very desirable form of two-wheeled cart is produced,
but it will also be understood that I do not limit myself to its precise form and
construction.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
1-In a two wheel vehicle, the combination with the body thereof, of the crank-arm
axle substantially as described, the front and rear cross springs, and the side springs
clipped to the drop of the axle and having one end-C-shaped and shackled loosely
to the rear cross spring and the other end slightly curved in an upward and downward
direction and shackled loosely to the front cross spring, substantially as specified.
2-In a two wheel vehicle, the combination with the body thereof, of the crank-arm
axle as described, the side springs clipped to the drop part of the axle and having the
rear end C-shaped and shackled loosely to a rear cross spring secured to the body,
and the forward end slightly curved in an upward and downward direction and
shackled loosely to a front cross spring, the drop shaft clipped to the arm of the axle
and braced thereto at a point above that where the side springs are clipped, and the
braces for securing the shafts against lateral movement, substantially as specified.
Dated 90th J... A 1000
CULVER GILMAN THYNG.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.