Improvements in Wheels for Velocipedes and other Vehicles.
Year: 1892

page_text: Date of Application, 25th July, 1892
Complete Specification Left, 25th Apr., 1893-Accepted, 2nd June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Velocipedes and other Vehicles.
THOMAS BARNES ADAIR, Assistant Engineer Waterford Ireland do hereby
declare the nature of my invention for IMPROVEMENTS IN WHEELS
VELOCIPEDES AND OTHER VEHICLES to be as follows:-
FOR
The accompanying sheet of drawings represents my invention thus:-
Fig. 1. B is air-bag. C is filling-tube. D is pressing plate which presses air-
bag by means of screw E. There is a special spiral spring F which presses air-bag
by plate G. H is a front plate which is screwed on axle A. by means of nut J.
Kis outside metal casing which has flanges L into which spokes M are screwed.
N is an inside face-plate which is screwed to flange L. Slots are in this inside
face plate N to permit the screw E to rise up and down with freedom-also
grooves for ball-bearings to permit the inside face-plate N to play upon the front
plate H.
There is a freedom space all round axle A of say three quarters of an inch or
less in this inside face-plate N. to permit the axle A sufficient play-thus
permitting the air-bag B. the power of acting as an air-spring around the axle A.
P. is an inside collar which is firmly fixed on axle A.
Above the broken line Q. Q. is section.
Below the broken line Q. Q. is outside view.
Fig. 2. shews front view of front plate H.
R is washer.
Like figures represent like parts.
To explain the workings-
The air-bag B is filled by means of the tube C. and this air-bag being encased in
the metal casing K a much greater pressure can be permitted in filling-c
sequently the air will last longer as a spring.
-con-
Further the spiral spring F. pressing forward the plate G. keeps the air-bag
firmly pressed.
Also the screw E when required can press the plate D on air-bag.
The plate P. which is firmly fastened on axle, and the plate H, which is also
firmly fixed by means of a screw, keeps wheel in position on axle, as both these
plates press upon the faces of outside metal casing K. by means of ball bearings.
Dated this 22nd day of 7th mouth 1892.
an the workings
The air-bag B is filled by means of the tube C. and this air-bag being encased in
the metal casing K a much greater pressure can be permitted in filling-con-
sequently the air will last longer as a spring.
Further the spiral spring F. pressing forward the plate G. keeps the air-bag
firmly pressed.
Also the screw E when required can press the plate D on air-bag.
The plate P. which is firmly fastened on axle, and the plate H, which is also
firmly fixed by means of a screw, keeps wheel in position on axle, as both these
plates press upon the faces of outside metal casing K. by means of ball bearings.
Dated this 22nd day of 7th mouth 1892.
THOMAS BARNES ADAIR.
COMPLETE SPECIFICATION.
Improvements in Wheels for Velocipedes and other Vehicles.
I, THOMAS BARNES ADAIR, Assistant Engineer, Gracedien Waterford Ireland,
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:
The accompanying drawings represent my invention—thus:
Fig. 1. A. is axle. B is an air-bag encasing axle. C. is the hox of wheel
encasing air-bag. D is a circular plate attached firmly to the axle A. E is a
plate which slides in upon axle-and is held in position by the axle having a flat or
Hats on it which keeps the plate E in perfect uniformity of motion with the axle A,
and consequently in like motion with the plate D.
F. is a tightening nut which works upon axle to draw in the plate E. to the
Pain as

page_text: required position. This nut is kept from loosening by the plate H. Fig. 2. which
fits tightly upon the nut F. and consequently when the plate H. is screwed to the
plate E. the nut F. is held securely.
There are a sufficient number of holes in the plate E. to meet the requirements
of adjusting the nut to the exact required position.
G. G. are balls which are held in position by circular recesses being cut; part
in plates E and D. and part in plates K and L.
Further illustration of these cuts are shewn in Fig. 2.
Like letters represent like figures.
The plate K. is a plate firmly screwed to the box C. and the plate L may be a
part of the box C.
N
There is also a plate M. which fits fairly close on axle, at both sides of air-bag,
and which plate prevents the air-bag from pressing out into the freedom spaces
and N. which freedom spaces are required to permit the box C. and its connections
to vibrate, without striking the axle A.
These plates M. have their circumferences rounded in such a manner as not to
cut the air-bag B.
The operations of working will be thus understood.
The air-bag is inflated through the tube T. and as this air bag is perfectly
encased in casing which may be strengthened as desired, the pressure can run up
far beyond what would be possible without such firm casing.
And here I may remark, that this air bag may be encased in a flexible strong
leather case or other suitable material, which casing can go through the centre of
the air-bag as well as around its circumference. The vibrations now which come
to the box C. from the circumference of the wheel, are delivered to the air-bag-
and not directly to the axle, because the freedom spaces N. N. which are around
the axle prevent the box C. and its firm connections from coming in contact with
the axle A.
The balls having a perfect freedom yield easily and thus permit the plates K
and L. to vibrate upon the plates E and D.-with a high pressure in air-bag, the
plates M. would be tightened upon the plates K and L.-to prevent this though
it is not shewn in drawing-I put a slight collar in the freedom spaces N. N. and
thus take the pressure off the plates K and L. such collar being the required
length for this purpose.
An india rubber casing may be around the axle to prevent the plates K and L.
from striking the axle through severe vibrations or if desirable this casing might
go the whole way through-and thus prevent friction between the axle and the
bag as the india rubber would yield to the slight drag caused by vibrations.
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―
1st. An air bag working in connection with a wheel after the manner described
and further illustrated by the accompanying drawings.
2nd. The balls working in freedom cavities after the manner described and for
the purpose illustrated.
3rd. The apparatus substantially as herein before described with reference to
Fig. 1. and 2. of the accompanying drawing for operating the air-bag for the
purpose specified.
Dated this 24th day of 4th month 1893.
THOS. BARNES ADAIR.