Improvements in Pneumatic Wheels for Vehicles.
Year: 1893

page_text: Date of Application, 10th June, 1893
Complete Specification Left, 9th Mar., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Wheels for Vehicles.
JOSEPH CASTLE HALL 2 Gresham Buildings, Basinghall Street London,
Chartered Accountant do hereby declare the nature of this invention to be as
follows:-.
My invention relates to pneumatic wheels invented by me & protected under
Patents 3968 of 1891 and 7663 of 1892 respectively and particularly in reference
to means for narrowing the wheels and simplifying their construction. In
arranging the flanges defined in the Patents aforesaid or any suitable flanges I fix
the same at each end of the axle, any suitable distance apart and at a distance of a
few inches from the said axle I arrange a circular tube of metal or other suitable
material which fits in grooves in the flanges when the latter are adjusted upon the
axle or is otherwise suitably fixed between the said flanges. The said tube serves:
two purposes 1st to enlarge the centre hole or cavity in the air chamber and
2ndly to form a stay for the said flanges in keeping them at an equal and uniform:
distance apart. I pass through from one flange to the other suitable rods or stays
which bind the flanges together. These may be passed through the flanges and
the intervening space at any convenient distance from the axle aforesaid. Suitable
heads & screws or other attachments are provided for the ends of said rods or:
stays. The air chamber I arrange to come round the said tube by making a
suitable cavity in the centre thereof. The chamber aforesaid may be made in
accordance with any of the methods previously described in my said Patents and
may also be made with circular orifices or holes through the same in suitable
places. For the purpose of further narrowing the wheel whether when used in
conjunction with a wheel constructed with axle & flanges, and with the said tube
surrounding the axle or otherwise used in air or pneumatic wheels made in accord-
ance with my Patents aforesaid or otherwise I make circular or other shaped
cavities through the wheels at suitable distances apart, that is to say the walls of
the air chamber may be constructed with holes through them of any size or.
shape. I may arrange the said cavities in a manner so as to form hollow spaces
radiating from the centre to the outer periphery of the chamber, or I arrange
canvas strips in a suitable manner in the interior of the air chamber.
When
I make cavities passing through the wheel as aforesaid, side winds may pass.
through and are thus prevented from interfering with the course of the wheel in.
travelling.
Dated this 8th day of June 1802
J. CASTLE HALL.
COMPLETE SPECIFICATION.
Improvements in Pneumatic Wheels for Vehicles.
7
JOSEPH CASTLE HALL, 2 Gresham Buildings, Basinghall Street, London,
Chartered Accountant, 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 :-
My invention relates to pneumatic wheels invented by me and protected under
Patents 3968 of 5th March 1891 and 7663 of 23rd April 1892 respectively and
particularly in reference to means for narrowing that is to say, reducing the widta
{ Price Q27

page_text: of the wheels and simplifying their construction. In arranging the flanges defined
in the Patents aforesaid or any suitable flanges I fix the same upon the axle or
hub at any suitable distance apart, and when desired as stated in line 25 of my
Specification of the said 23rd April 1892 "the said flanges may be arranged close
together at the point where they leave the axle." At a distance of a few inches
from the said axle I arrange a circular tube or disc of metal or other suitable
material which fits in grooves or otherwise closely against the flanges (when the
latter are adjusted upon the axle) or which is otherwise suitably fixed between the
said flanges. The said tube or disc serves two purposes 1st, to enlarge the centre
hole or cavity in the air chamber and 2ndly to form a stay and support for the said
flanges. The said disc is by preference fastened upon the hub or nave or is
otherwise a part thereof. The said flanges when securely bolted or otherwise
secured together (the bolts passing through holes in the said disc) are prevented
from remaining stationary when the hub is revolved as otherwise might be the case
in wheels used as driving wheels, for example the wheels of a cycle which is driven
from the hub. When desired the weight of material constituting the flanges as
well as the said disc may be reduced by any suitable perforations through the
same. The air chamber I arrange to come round the periphery of the said disc or
tube by making a suitable cavity in the centre thereof. The chamber aforesaid
may be made in accordance with any of the methods previously described in my
said Patents and may also be made with circular orifices or holes through the same
in suitable places. For the purpose of further narrowing or reducing the width
from one side to the other of the wheel whether when used in conjunction with a
wheel constructed with axle and flanges and with the said disc or tube surrounding
the axle, or used in air or pneumatic wheels made in accordance with my Patents
aforesaid, or otherwise, I make circular or other shaped cavities through the
wheels at suitable distances apart, that is to say the walls of the air chamber may
be constructed with holes through them of any size or shape. I may arrange the
said cavities in a manner so as to form hollow spaces radiating from the centre to
the outer periphery of the chamber, or I arrange canvas strips or reeds in a
suitable manner in the interior of the air chamber. The method of doing this is as
follows: To form the said cavities, the walls constituting the air chamber have
not only a central cavity but are constructed with cavities or tubular holes between
the central hole and the periphery. When required these cavities may be
dispensed with and the walls thereof may be arranged in close proximity to each
other, in which case they are called reeds only. When I make cavities passing
through the wheel as aforesaid, side winds may pass through and are thus prevented
from interfering with the course of the wheel in travelling. The wheel is inflated
in the usual manner and the axle with the hub may be fitted with usual ball or
other bearings. Another modification for the formation of the said disc is to
leave a suitable inner circular projection upon each of the flanges and to arrange a
thread or screw on the outer periphery of one of the said projections and an inner
thread upon the other and thus screw the flanges together by means of the said
threads or screws.
In the annexed drawings Figs. 1, 2, 3, and 5 are sectional views of four
modifications of the wheel. Fig. 4 is a plan view of the disc, tube or belt D, with
axle in centre marked X. In this fig., B B are the holes through which the
bolts G in the other figs., are passed. A A A are holes through the disc which
may be of any shape and size for the purpose of reducing its weight and there may
be corresponding holes or perforations of any shape and size in the flanges. In
Figs. 1, 2, 3, and 5, C is the hub in which any ordinary axle may be arranged;
D the disc or tube which fits against the flanges E E. F is the air chamber,
H being the walls thereof. K, K, in Fig. 5 are the projections on the flanges
with inner and outer screws respectively. In Fig. 3 the disc D is comprised of the
flanges themselves being brought together in a suitable manner for the air chamber
to rest upon.
Jin Fig. 3 represents a hole or cavity through the air chamber as
before mentioned.

page_text: L. L. Fig. 5 shows webs which may be arranged on each flange when desired for
strengthening purposes.
Having now described and particularly 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 :-
(1) A pneumatic wheel, including the flanges E E, and disc D, rising from the
hub or nave to any required height before receiving the air chamber F, and
perforated with holes or spaces of any shape or size as and for the purposes herein-
before described, substantially as set forth.
(2) A pneumatic wheel having cavities through the same of any shape and size,
or otherwise having strips or reeds of canvas arranged in the interior in any
desirable manner for the purpose of narrowing the width of the wheel substantially
as described.
Dhoh
n1
100
J. CASTLE HALL,
Applicant.