Improvements in and connected with Velocipedes.
Year: 1897

page_text: Date of Application, 25th Feb., 1897
Complete Specification Left, 28th Dec., 1897-Accepted, 29th Jan., 1898
PROVISIONAL SPECIFICATION.
Improvements in and connected with Velocipedes.
We, FREDERICK HORATIO PHILLIPS, of 131, High Street, Harlesden, in the
County of Middlesex, Gunsmith, and CHARLES WILLIAM PARTINGTON, of 12,
Willoughby Park Road, Tottenham, in the County of Middlesex, Clerk, do hereby
declare the nature of this invention to be as follows:
--
The object of this invention is to prevent the vibration of velocipedes due to
passing over rough roads from being transmitted to the riders of such machines.
Now according to this invention as applied to bicycles we attach to or form
integral with the ends of the back fork, brackets or guides having curved slots
therein, in which slots the ends of the driving wheel axle move up and down.
The bearings for the driving wheel axle or if the axle does not revolve, the
axle itself are or is attached to a fork which fork is attached at its upper end to
the back stay tubes.
This attachment may be made by slotting the upper portion of the fork and
causing the said slot to move on and be guided by a roller shaped to fit the slot,
the said roller being attached to the back stay tube by any suitable means.
Or the upper end of the said fork may move in a sleeve which sleeve oscillates
on a bearing supported by a bridge piece across the stay tubes.
As the slots on the ends of the back tubes are struck with a radius equal to.
the distance from the centre of the crank axle to the centre of the driving wheel
hub the tension of the driving chain is unaltered as the driving wheel axle moves
in the said slots.
A spring or springs keeps the driving wheel axle normally at the bottom of
the curved slots.
We also attach slotted guides to the ends of the steering fork and inside the
said fork we place a second fork carrying the front axle in the usual way.
A suitable spring (or springs) normally depresses the ends of the front axle
to the bottom of the slotted guides.
This invention may also be applied to tricycles and other velocipedes.
Datad this 95th day of Wahmuan 1807
Improvements in and connecteu With welocipedeD
We, FREDERICK HORATIO PHILLIPS, of 131, High Street, Harlesden, in the
County of Middlesex, Gunsmith, and CHARLES WILLIAM PARTINGTON, of 12,
Villoughby Park Road, Tottenham, in the County of Middlesex, Clerk, do hereby
Price SdI

page_text: declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
The object of this invention is to prevent the vibration of velocipedes due to
passing over rough roads from being transmitted to the riders of such machines.
Now according to this invention as applied to bicycles we attach to or form
integral with the ends of the back fork, brackets or guides having curved slots
therein, in which slots the ends of the driving wheel axle move up and down.
The bearings for the driving wheel axle or if the axle does not revolve, the
axle itself are or is attached to a fork which fork is attached at its upper end to
the back stay tubes.
This attachment may be made by slotting the upper portion of the fork and
causing the said slot to move on and be guided by a roller shaped to fit the slot,
the said roller being attached to the back stay tube by any suitable means.
Or the upper end of the said fork may move in a sleeve which sleeve oscillates
on a bearing supported by a bridge piece across the stay tubes.
As the slots on the ends of the back tubes are struck with a radius equal to
the distance from the centre of the crank axle to the centre of the driving wheel
hub the tension of the driving chain is unaltered as the driving wheel axle moves
in the said slots.
A spring or springs keeps the driving wheel axle normally at the bottom of
the curved slots.
We also attach slotted guides to the ends of the steering fork and inside the
said fork we place a second fork carrying the front axle in the usual way.
A suitable spring (or springs) normally depresses the ends of the front axle
to the bottom of the slotted guides.
This invention may also be applied to tricycles and other velocipedes.
And in order that our said invention may be fully understood we will proceed
to explain the same with reference to the accompanying sheet of drawing in
which:
Fig. 1. represents side elevation of a bicycle constructed according to this
invention.
Fig. 2. is end view showing the invention as applied to the back wheel.
Fig. 3. is end view showing the invention as applied to the front wheel.
Fig. 4. shews alternative method of applying the springs.
The same letters denote the same parts in all the figs.
a is the front wheel
the back wheel, e the steering fork d the back fork f the back stays 9 g brackets
attached to the ends of the back fork the said brackets have curved slots h
therein in which the ends of the driving wheel axle i move up and down.
jis a second fork in the ends of which the axle i is secured in the same manner
as the steering wheel axle is usually secured to the steering fork.
The upper end of the fork ; carries a grooved roller which rolls on a guide
to prevent sideway movement of the fork.
Springs m secured at their upper ends to the fork ; and at their lower ends to
the back fork & normally keep the axle i at the bottom of the slots h.
Or instead of the upper end of the fork j being guided by means of the grooved
roller hereinbefore mentioned the upper end of the said fork may move in a sleeve
which oscillates on a bearing supported by the usual mudguard bridge across
the back stays.
The slots at the end of the back fork being struck with a radius equal to the
distance from the centre of the crank axle to the centre of the driving wheel the
tension of the driving chain is unaltered as the driving wheel axle moves in
the said slots.
nn are slotted guides at the bottom of the steering fork and o is a fork carrying
the axle of the steering wheel.
4
4

page_text: The upper end of the fork o is furnished with a pin which engages with a slot
in a bracket p secured to the crown of the steering fork.
Springs q normally retain the axle of the wheel a at the bottom of the guides as
shewn the said springs being fastened at their upper ends to the fork o and at
their lower ends to the steering fork c.
Rollers may be attached to the ends of the axles to reduce friction.
In some cases instead of coiled metal springs as shewn at Fig. 1 we may use
indiarubber springs as shewn at Fig. 4 which springs may be either flat bands or
coils of rubber cord.
The springs should be adjusted to suit the weight of the rider so that when he
or she is mounted the axles will be at about the centre of their respective slots and
as the machine is moved over rough roads the vibration is taken up by the springs
and not transmitted to the saddle.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. In velocipedes the construction and use of supplementary forks to the ends
of which the axles of the steering and driving wheels are secured the upper ends
of the said forks being guided in any suitable manner for the purpose stated.
2. In velocipedes the combination of slotted guides in which the axles of the
driving and steering wheels are free to move with supplementary forks guided at
their upper ends and secured to the said axles at their lower ends and springs
secured to the said forks which normally retain the said axles at the bottom of
the said slots substantially as herein before specified and for the purpose stated.
3. Spring frames for velocipedes constructed as shewn by the accompanying
drawings.
Toted this 24th day of December 1897
T. E. HALFORD,
11, Furnival Street, London, E.C., Agent for Applicant.