Improved Inflating Apparatus applicable to Pneumatically Tyred Wheels of Cycles and other Vehicles.
Year: 1896

page_text: Date of Application, 3rd Nov., 1896
Complete Specification Left, 3rd Aug., 1897-Accepted, 3rd Nov., 1897
Improved Inflating Apparatus applicable to Pneumatically Tyred
Wheels of Cycles and other Vehicles.
I, FRANCIS WENTWORTH BREWSTER, of The Golfers Club, Whitehall Court, London,
Gentleman, do hereby declare the nature of this invention to be as follows:-
This Invention relates to improved inflating apparatus applicable to pneumatically
tyred wheels of cycles and other vehicles, and consists, essentially, in the com-
bination with the wheel of a vehicle, of a pump in such a manner as to rotate
therewith, and in the actuation of the pump by a rod operated by an excentrically
mounted ring, cam or equivalent means applied to a convenient non-revolving part
of the vehicle, in such a manner that it can be adjusted or placed in or out of action
as desired; the same being adapted for automatically inflating the wheel tyres or
keeping such tyres fully inflated during the operation and travelling of the
vehicle.
. The air-pump, applied to and rotating with the wheel of the vehicle, is placed in
communication with the tyre of the wheel, and its pump-rod may be operated by a
ring or cam excentrically mounted on or applied to a convenient part of the vehicle,
suitable provision being made for preventing any excess of pressure within the tyre,
and for putting the ring or cam out of action at the will of the cyclist or driver. In
one arrangement, as applied, say, to the front steering wheel of a safety bicycle, the
pump-rod actuating device may consist of a ring applied in such a manner to
the fork of the wheel that it can be set concentric with or excentric in relation to the
axis of the wheel by a simple manipulation by the cyclist, in the former position
being inoperative on the pump-rod, and in the latter position being operative
thercon, the return motion of the pump-rod being effected by a spring. In another
modification, both movements of the pump-rod may be effected by double rings
forming a cam-groove, around within which the head of the pump-rod is carried by
the rotation of the wheel so as to actuate the pump-rod endways.
In a further nodification, seperate pumps may be applied to the wheel at the
opposite ends of a pump rod or rods operated from an excentric ring or rings, the one
pump being adapted to pump into the tyre and the other into a revolving tubular
axle, which may connect with a revolving tubular axle of the rear driving wheel of a
cycle by non-revolving elbow-jointed connections applied to the two axles, and from
the latter of which the air may pass down through a tubular spoke to the tyre of the
rear wheel. Or, each wheel may carry its own inflating or pumping device.
Dated this 2nd day of November 1896.
DAY, DAVIES & HUNT,
Chartered Patent Agents, 321, High Holborn, London, W.C.,
Agents for the Applicant.

page_text: Improved Inflating Apparatus applicable to Pneumatically Tyred
Wheels of Cycles and other Vehicles.
I, FRANCIS WENTWORTH BREWSTER, of The Golfer's Club, Whitehall, London,
Gentleman, do hereby declare the nature of this Invention and in what marner
the same is to be performed to be particularly described and ascertained in and
by the following statement:-
This Invention relates to improved inflating apparatus applicable to pneumatically
tyred wheels of cycles and other vehicles and adapted for automatically inflating such
tyres or keeping the same inflated during and by the operation and travelling of the
vehicle.
On the accompanying drawings:-
Fig. 1, represents an elevation of a pneumatically tyred wheel adapted with the
Invention, showing the inflating apparatus out of operation.
Fig. 2, represents a like view, showing the apparatus in operation, and
Figs. 3, and 4, represent sectional elevations.
To the end aforesaid, the Invention consists in the combination with a pneu-
matically tyred vehicle wheel a, of a pump b, adapted to rotate with the wheel, and
in the actuation of the pump rod c, by a ring d, cam or equivalent device applied to
a conveniently adjacent non-revolving part of the vehicle, in such manner that it
can, by a simple manipulation of the cyclist, be placed in or out of operative position,
as desired.
The pump b, is applied to the wheel rim a, and communicates with the wheel
tyre a, and is provided with a valve e, of any suitable construction, serving to
prevent any excess of pressure within the tyre. The pump and pump-rod are
arranged with their axes diametrically of the wheel, and the pump-rod is slotted, as
at f, and guided by the wheel axle g. At its free end, the pump-rod is provided
with a wheel or roller h, adapted to engage with the ring d, which, as aforesaid, is
applied to a conveniently adjacent non-revolving part of the cycle, say, for example,
the steering-wheel fork i, of a safety bicycle, in such a manner that it can, by a
simple manipulation of the cyclist, be set concentric with or excentric in relation to
the wheel-axle g, in, the former position, being inoperative on the pump-rod, vide
Fig. 1, and in the latter position, being operative thereon, vide Figs. 2, and 3.
When one ring d, is applied, the return motion of the pump-rod may be effected by
a spring j, but both movements of the pump rod may be positively effected by
double rings d, forming a cam groove k, (vide Fig. 4,) around within which the
puinp-rod roller h, is carried by the rotation of the wheel so as to actuate the pump-
rod endways and in both directions.
The ring or coupled rings d, may be adjusted by a guided rod l, leading to a
position convenient for operation by the cyclist.
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-
In combination, a pneumatically tyred wheel, a pump adapted to rotate therewith,
and an adjustable ring, cam or equivalent device applied to a non-revolving part of

page_text: the vehicle in such manner that it can be set concentric with or excentric to the
wheel so as to be inoperative or operative upon the pump rod, as set forth.
Dated this 31st day of July 1897.
DAY, DAVIES & HUNT,
Chartered Patent Agents, 321, High Holborn, London, W.C.,
Agents for the Applicant.