Year: 1897

page_text: Date of Application, 30th Mar., 1897-Accepted, 1st May, 1897
We, KARL NAU, of Steindamm 76, Confectioner, and GEORG FRIEDRICH
FRANZOWITZ, Hohestrasse 28, Merchant, both of Hamburg-St. George, in the
German Empire, 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 :—
The object of the present invention is a cycle capable, by reason of its simple
construction, of being propelled at a high rate of speed without great exertion on
the part of the riders.
In the accompanying drawings,
Figure 1 is a front elevation of a cycle made according to the present invention;
and
Figure 2 is a side elevation corresponding therewith.
Figure 3 is a rear elevation of a modification of the invention.
The cycle can, of course, be of any desired size-the height most convenient is
from 54 to 80 inches. A seat for one rider is provided on each side of the wheel.
The axle b with the wheel a fast thercon, is rotated by means of the pedals o, c',
through chain gear in the proportion of 1:3. The rotation of the pedals e, c', is
transmitted to the sprocket wheels d, and from there through the chains e, e', to
the sprocket wheels ff, fast on the axle. In constructing this sociable mono-
cycle, great care must be taken to secure the balance of it, by dividing the weight
equally between both halves of the axle b. There is a tubular prolongation 9,9',
fitted over each projecting half of the axle.
The preferable proportions are as follows:-The length of the axle b including
the extensions g, g₁ is about 40 inches. The distance between the two hubs b', 6' is
about 10 inches. The sprocket wheels f,f, are each about 1 inch wide. The
distance between the supports of the pedals and those of the driving sprocket
wheels is about 8 inches, leaving an overhanging portion of tubular prolongation
of about 6 inches.
From the under side of the axle b, g, g¹ depend, on each side of the wheel,
vertical supports i,,, . These are, preferably, 30 inches long, so that there
is a space of about 4 inches between the bottom pedal and the ground so as to
clear obstacles.
The saddles k, k¹, are arranged on saddle brackets 1, about 8 inches below the
axle. The connection of the saddles, to their brackets is illustrated in Figure 2.
A saddle bracket is made fast to an outer support, i or i³, from which it projects
to the rear and has the saddle made fast to it near its rear end. The bracket is
further fixed at such an angle with the support as will tend to prevent back-
pedalling when the riders take their seats and also to provide for the cycle starting
easily.
The object of the invention may be realised by the means illustrated in Figure 3.
According to this modification, the pedals c, with their gearing, are carried by the
supports i, which latter depend from the axle g on each side of the wheel a,
while the said supports being strengthened by curved ties, from them by the
axle g. The saddles are arranged on their brackets as described with reference to

page_text: Figures 1 and 2. This arrangement has the advantage that the axle g can be
correspondingly shorter than in the construction illustrated in Figures 1 and 2.
It is clear, that the dimensions of the machine are optional and are not limited
to those above mentioned.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
A sociable monocycle, the prolonged axle of the wheel of which is provided on
each side with supports for the pedals, the rotary motion of which is conveyed to
the axle by chain gear, tho saddles being arranged on specially formed brackets,
as set forth.
Dated thin 20th day of March 1907
PHILLIPS & LEIGH,
No. 22 Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.