Year: 1896

page_text: Date of Application, 14th May, 1896
Complete Specification Left, 15th Feb., 1897-Accepted, 17th Apr., 1897
I, JOSEPH LEONARD SOUHAMI, of 372 Old Street, in the County of London, Clerk,
do hereby declare the nature of this invention to be as follows:-
This invention refers to improvements relating to bicycles, tricycles and other
velocipedes.
According to this invention, I form a pump in the steering post of the machine, in
such a way that by pressing down the piston of the pump, the air is forced into a
chamber fitted on a plate attached to the upper part of the fork containing the
front wheel. This chamber is fitted preferably under the lamp bracket, and is
provided with a cover through which passes one end of a rod, which also passes
through the lamp bracket, which holds it in position. To the lower end of this rod
is attached an air tight piston, for the purpose hereinafter specified. I further
provide a suitable arrangement of valve, to prevent the air from this chamber
passing back into the pump. To an outlet to the chamber, I connect a tube,
which is carried along the frame of the machine, to the inlet of a cylinder, suitably
fixed near the driving wheel (by preference). In this cylinder, I place an air-tight
bag, into which the tube conducting the air opens. Against this bag I place a
piston, the rod of which passes out through the cover of the cylinder and carries the
break block.
When the handle of the pump is depressed, the air is forced into the chamber, and
thence along the tube into the bag in the cylinder, causing the break block to be
forced out against the tyre, and thus strongly applying the break.
In order to release the break as soon as desired, the piston in the aforementioned
chamber is forced down until it comes below the outlet of the chamber into the
tube to the break cylinder. The air is then enabled to escape from the air tight
bag, and escapes through a suitable opening in the cover of the said chamber. The
piston in the chamber is kept in its normal position, by means of a suitable spring.
The pistons of the pump and the chamber may if desired be connected suitably to,
so as to be actuated by the ordinary break lever."
When it is required to use the pump for inflating the tyres of the wheels, it is
simply necessary to unscrew the tube from the break cylinder and to connect it to the
valves of the tyres.
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C., Agents for the Applicant.
Improvements relating to Bicycles, Tricycles, and other Velocipedes.
I, JOSEPH LEONARD SOUHAMI, of 372 Old Street, in the County of London, Clerk,
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 :-
This invention refers to improvements relating to bicycles, tricycles and other
velocinedos

page_text: According to this invention, I form a pump in the steering post of the machine,
in such a way that by pressing down the piston of the pump, the air is forced
into a chamber fitted on a plate attached to the upper part of the fork containing
the front wheel. This chamber is fitted preferably under the lamp bracket, and is
provided with a cover through which passes one end of a rod, which also passes
through the lamp bracket, which holds it in position. To the lower end of this
rod is attached an air tight piston, for the purpose hereinafter specified. I further
provide a suitable arrangement of valve, to prevent the air from this chamber
passing back into the pump. To an outlet to the chamber, I connect a tube,
which is carried along the frame of the machine, to the inlet of a cylinder,
suitably fixed near the driving wheel (by preference). In this cylinder I place an
air-tight bag, into which the tube conducting the air opens. Against this bag I
place a piston, the rod of which passes out through the cover of the cylinder and
carries the break block.
When the handle of the pump is depressed, the air is forced into the chamber, and
thence along the tube into the bag in the cylinder, causing the break block to be
forced out against the tyre, and thus strongly applying the break.
In order to release the break as soon as desired the piston in the aforementioned
chamber is forced down until it comes below the outlet of the chamber into the tube
to the break cylinder. The air is then enabled to escape from the airtight bag and
escapes through a suitable opening in the cover of the said chamber. The piston in
the chamber is kept in its normal position by means of a suitable spring.
The pistons of the pump and the chamber may if desired be connected suitably to
(so as to be actuated by) the ordinary break lever.
When it is required to use the pump for inflating the tyres of the wheels, it is
simply necessary to unscrew the tube from the break cylinder and to connect it to the
valves of the tyres.
And in order that my said invention may be better understood I will now proceed
to describe the same with reference to the drawings accompanying this Specification
in which
Fig. 1 shews a view of a bicycle having my improvements adapted thereto.
Fig. 2 shews elevation of handle bars, steering post and handle and portion of the
fork; a portion of the steering post being broken away to shew the interior in which
the pump is located.
Figs. 3 and 4 are details hereinafter referred to.
The same letters of reference are employed to denote the same parts in all
the views.
a is the steering post, is a rod, connected to the plunger c of the pump d.
The rod projects through the handle bar e, and terminates in a knob f, g is a plate
attached to the upper part of the fork . This plate is bent so as to form a chamber.
To the outer end of the plate g 1 connect a chamber i, into which I fit a valve k, kept
in position by a spiral spring 1, the upper end of which latter rests against a bar m:
n is another valve kept in position by the spiral spring o, the bottom of which latter
rests against the bar m. p is a rod, the lower end of which is connected to the
valve n, and passing up through the lamp bracket terminates in the knob q. The
chamber formed by the plate g is provided with an inlet r from the pump, and an
outlets to the chamber i.
This is all clearly shewn on Figure 3 drawn to a larger scale than Figure 1.
t is an outlet from the chamber i (Fig. 3).
Fig. 4 shews a detached view of the arrangement for actuating the brake. u is a
chamber, v is an air bag, connected with a pipe w, joining it to the outlet t by means
of a flexible tube w¹. is a piston, which is actuated by the air bag . y is a rod
connected to the piston .. This rod carries the brake block . 2 is a spiral spring,
for releasing the brake as hereinafter described.
The action is as follows:-
In order to apply the brake, supposing the rod of the pump to be drawn up,
it is simply necessary to push down the rod f, this forces air through the

page_text: outlets and s, and opens the valve k, the air passing through the outlet tand
thence along the tube to the air bag r, thus forcing out the piston x and applying
the brake.
To release the brake it is simply necessary to push down the knob 9, which opens
the valve n, so as to allow the air to escape. The piston x is aided in returning to its
normal position by the pressure of the spring .
If it is required to use the pump for inflating the tyres, the flexible tube w¹ is
detached from the outlet into the bag v, and is attached to the valve of the tyre,
when the tyre may be inflated by working the knob f of the pump.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
The improvements in and relating to bicycles, tricycles and other velocipedes,
substantially as set forth.
2. In bicycles, tricycles and other velocipedes, the combination with the steering
post of a pump for the purposes set forth.
3. The combination with a pump, contained in the steering post of a cycle,
of auxi ry air chambers, constructed and arranged, substantially as and for the
purposes set forth.
4. In improvements relating to cycles, the employment of a cylinder containing
an air bag (such as that shewn on Figure 4 of the accompanying drawing) for the
purpose set forth.
Dated this Fifteenth day of February 1897.
BROWNE & CO.,
Agents for the Applicant.