Improvements in and connected with Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 4th Feb., 1893
Complete Specification Left. 4th Nov., 1893-Accepted, 9th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Pneumatic Tyres.
We ARTHUR JAMES WAKEFORD, Architects Assistant, HENRY CHALCRAFT
KNIGHT, Solicitors Clerk, and BERTIE HARRY WAKEFORD Architects Assistant
all of No. 2 Larkhall Lane, Clapham, S.W. do hereby declare the nature of
this invention to be as follows:-
The object of this invention is to put a pneumatic tyre on a hollow or solid rim
as shown at A on plan, with hooks as at B put round the outer cover C at certain
distances apart. The outer cover C to be lined with canvas D to prevent the
backs of the hooks B and the outer cover C from rubbing against the inner
tube E.
The valve to be as shown at F. G and H.
To inflate the tyre screw on pump at I, then screw up J to the nut K to open.
To reclose F. G and H keep the pump screwed on at I, and screw down J. L. L. a
dust cap. The valve to be fixed to tyre by means of copper wire bound round the
rubber valve of the inner tube E and the ridges as at M. M. M.
Dated this 4th day of February 1893.
ARTHUR JAMES WAKEFORD.
HENRY CHALCRAFT KNIGHT.
BERTIE HARRY WAKEFORD.
COMPLETE SPECIFICATION.
Improvements in and connected with Pneumatic Tyres.
ARTHUR JAMES WAKEFORD Architects Assistant HENRY CHALCRAFT
KNIGHT Solicitors Clerk BERTIE HARRY WAKEFORD Architects Assistant all
of No. 2, Larkhall Lane, Clapham, S.W. 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 object of this invention is to simplify the method of attaching a pneumatic
tyre on to a hollow or solid rim so as to be easily detached whenever you may want
to examine the inner tube E, but is kept on the rim A by means of hooks as shewn
at B on drawings filed with our Provisional Specification, fastened on both sides of
the outer cover C and the canvas backing D at certain distances apart according to
size of tyre.
The outer cover C to be lined with a canvas backing as shewn at D to prevent
the backs of the hooks B rubbing against the inner tube E.
The outer cover C to consist of india rubber and canvas moulded to the shape
required.
The inner tube E to consist of india rubber moulded to the size required.
The canvas backing D to be solutioned to the back of the outer cover C.
The rim A to be made either hollow or solid but must be the same shape as
shewn on the drawings filed with our Provisional Specification. To be made of
steel or other metal, and the size according to the size of tyre, the one shewn on
drawings being a 2 inch tyre.
The hooks B to be of brass or other metal and of a size to fit into the rim A
easily; also to be stamped through the outer cover C & between the canvas
backing D.
To attach the outer cover C to the rim A, slightly inflate the inner tube E,

page_text: then attach the outer cover C to the rim A by the hooks B, and the process
of fully inflating will firmly attach the outer cover C to the rim A.
To detach the outer cover, C, deflate, and the hooks will release themselves from
the rim A..
The valve to be as shown at F. G. H. on drawings filed with our Provisional
.Specification.
F. Section showing valve closed.
G. Section showing valve open.
H. Elevation showing valve closed.
To be made of gunmetal and brass or other metals. To inflate the tyre with
this valve, screw on pump at I (which is screw threaded-and fitted with an outer
internally threaded-tube 11) by so doing you screw the tube I by the milled edge J
up to the nut K which will open the valve by uncovering the air-holes K¹, K',
in I.
To reclose the valve F. G. H. keep the pump screwed on at I and scrow down
by the milled edge J, which recovers the air-holes K, K¹, in 1 or by simply
unscrewing the pump off at I it will screw down I at the same time and so close
the valve by bringing in contact the washer J¹ (to be made of leather or other
pliable material,) with the outer internally threaded tube I¹.
The valve is rendered air tight by the washer J¹ coming in contact tightly with
the outer internally threaded tube 1 by screwing down the tube I by means of the
milled edge J on elevation H.
The nut K to screw over the milled edge J.
L. L. a dust cap with chain attachment.
The valve to be fixed to tyre by any ordinary means one way being (as shewn by
drawings filed with our Provisional Specification) by copper wire bound round the
ridges as shown at M. M. M. and the rubber valve tube, and projecting through
the rim A.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:-
1. The method of attaching the outer cover C to the rim A by means of
hooks B.
2. The shape of the rim A particularly where the hooks are attached.
3. The shape of the hooks B to fit the rim A.
4. The process of opening and shutting the valve F. G. H. by means of screwing
the tube I. up or down so as to uncover or cover air-hole in I.
Dated this 3rd day of November 1893.
ARTHUR JAMES WAKEFORD.
HENRY CHALCRAFT KNIGHT.
BERTIE HARRY WAKEFORD.