Year: 1886

page_text: Date of Application, 27th Nov., 1886.
Complete Left, 25th Aug., 1887:
Complete Accepted, 14th Oct., 1887.
I JOHN DRING of 65 Aytoun Road Brixton in the county of Surrey Chemist do
hereby declare the nature of this invention to be as follows:-
My invention is designed to produce an arrangement whereby I can readily convert
certain tricycles such for instance as the "Pioneer or like type into safety bicycles.
Instead of a short fork on the backbone of the tricycle toc arry the balance-geared axle,
I make the fork sufficiently long (when the balance-geared axle is removed) to insert
a wheel having a hub arranged as hereinafter described and carrying a pitch wheel for
a driving chain, whereby a safety bicycle is produced.
My hub is bored throughout to fit (when required for one wheel of the tricycle) on
one end of the balance geared axle. On one side of this hub is mounted a pitch
wheel to carry the chain wheel when the wheel is used for a safety bicycle.
I arrange a short spindle arranged to run on balls, rollers or other friction-reducing
surfaces in a tube or sleeve which fits (or carries bosses or collars to fit) the said hub
when required to be used in the safety bicycle. The ends of the said spindle are
threaded and are furnished with lock nuts or devices to fix the same to the long fork
aforesaid. I provide a set screw, spring-bolt or other device to lock the said tube or
sleeve to the hub when required so as to rotate with it on the fixed short spindle when
fixed to the said fork, and I put a stud on the tube or sleeve to engage with the said
hub.
To convert the tricycle I remove the balance-geared axle and wheels, place my hub
within the forks, secure the short spindle to the forks, then secure the tube or sleeve
to the hub and lastly put the chain on the pitch wheel, thus making the machine a
safety bicycle of the rear driving type.
To reconvert the machine I separate all the before mentioned parts and put the hub
on one end of the balance geared axle which is of course replaced in the fork. Of
course the balance-geared axle could be replaced by one using clutch-connection in
place of balance gear.
Dated this 26th day of November 1886.

page_text: COMPLETE SPECIFICATION
Improvements in Velocipedes.
I JOHN DRING of 65 Aytoun Road Brixton in the county of Surrey Chemist do
bereby 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:
My Invention is designed to produce an arrangement whereby I can readily convert
certain tricycles such for instance as the "pioneer" or like type into safety bicycles.
Referring to the accompanying sheets of drawings and to the figures and letters of
reference marked thereon. Figure 1 on sheet 1 shews a plan of a velocipede
constructed according to my invention as adapted to the tricycle form, and Figure 2
shews an enlarged elevation of the balance geared axle of the same, the detachable
hub constructed according to my invention being shewn in section.
On sheet 2 Figure 3 is a front elevation, and Figure 4 a plan of my velocipede as
adapted to the bicycle form. Figure 5 is an enlarged vertical section of my
detachable hub and Figure 6 a side elevation of the same on the chain wheel side.
Instead of a short fork on the backbone or frame A. of the tricycle to carry the
balance geared axle B, I make the fork sufficiently long when the balance geared
axle is removed, to insert a wheel having a hub arranged as hereinafter described
and carrying a pitch wheel for a driving chain whereby a safetey bicycle is produced,
a convenient way (which is well known) of mounting such a balance geared axle in
the fork and adjusting the same so that the distance between the driving and driven
chain can be regulated and the chain be kept at the required tention; is shewn in
Figures 2 and 3.
The fork ends have open onded slots C and pins D on brackets E the stay or cross
tube F carrying the balance geared axle B can fit in and be clamped in the said slots C
by nuts G or otherwise.
My hub His bored throughout to fit (when required for one wheel of the tricycle)
on one end of the balance geared axle. I, I, I, are collars on the axle end to fit the
hollow hub H and a set screw J clamps the hub to the collar I and axle end, so that
the hub and axle revolve together, or a spring bolt or other connection may be used
for the purpose. K is the lock nut on the axle end. On one side of this hub is
mounted a pitch wheel L to carry the chain when the wheel is used as a driving
wheel for a safety bicycle.
When the velocipede is to be used as a safety bicycle, I arrange a short spindle M
designed to run on balls, rollers, or other friction reducing surfaces in a tube or
sleeve N which fits (or as shewn carries bosses or collars O, P, P to fit) the said
bub H.
The adjustment of the ball bearings is shewn by the moveable collars P³, P.
The ends Q, Q' of the said spindle M. are threaded as shewn and are furnished with
lock nuts or devices to fix the same to the long fork aforesaid, for example by entering
the ends Q, Q in the slots C and then screwing up the nuts R, R¹.

page_text: I provide a set screw, spring bolt or other device (such as the set screw S
Figure 5) to lock the tube or sleeve N to the hub H when so required as to rotate
with it.
As shown the set screw S passes through the hub H and enters the collar O on the
tube or sleeve N so securing the hub II and the tube or sleeve N together.
I also put a stud or key T on the tube or sleeve N (see Figure 6) to engage with
the said hub.
To convert the tricycle, I remove the balance geared axle B and wheels, place my
hub within the forks, secure the short spindle M and its tube or sleeve N together
and mount them in the fork as before described and lastly put the chain on the pitch
wheel, thus making the machine a safety bicycle of the rear driving type.
To reconvert the machine I separate all the before mentioned parts and put the
hub H on one end of the balance geared axle B (fitting the collars I I I2) which is
replaced in the fork. Of course the balance geared axle could be replaced by one
using clutch connection in place of balance gear.
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 :-
A hub arrangement for use with the rear driving wheel of a safety bicycle,
consisting in the combination of a barrel or tube H carrying the hub flanges, a
sleeve or tube N capable of being locked to the said barrel or tube, bearings mounted
in such sleeve or tube N, a spindle carried by such bearings capable of being clamped
to the fork of the backbone or frame and a pitch wheel or like device for transmitting
power, mounted on such hub so that the said hub barrel or tube when detached from
its mounting, can be fitted to a tricycle axle, when the machine is to be ridden in
tricycle form substantially as described.
Dated this 22nd day of August 1887.
POPPLEWELL, COLTON & Co.,
17 & 18, Southampton Buildings, London, W.C.,
Agents for the Applicant.