Improvements in Pneumatic and other Elastic Tyred Wheels.
Year: 1896

page_text: Date of Application, 24th June, 1896
Complete Specification Left, 23rd Mar., 1897-Accepted, 8th May. 1897
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic and other Elastic Tyred Wheels.
I WILLIAM GIFFARD of 23 New Bailey Street Salford Engineer do hereby
declare the nature of this invention to be as follows:-
My invention consists in preventing cycle and other elastic tyred wheels from
slipping and I accomplish this by combining with the outer rubber cover, metal,
(prefferably "alluminium") the said metal coming in contact with the road bites
or grips the same.
One method of carrying out my invention is to mould pieces of metal in the
perhiphery of the outer cover when it is being manufactured.
Another method, to make an existing outer cover non slipping 1 insert pieces of
metal in the form of pins, studs, staples, plates side by side, apart, or overlapping
each other, or by forming grooves round the perhiphery of the said outer cover in
which are secured one or more rings of metal, or a ring of metal plain, woven,
perforated, corrugated or serated may be secured in any suitable manner,
interposing between the said outer cover and the road to obtain the necessary bite
or grip, and thus prevent the wheel from slipping.
Dated this 23rd day of June 1896.
WILLIAM GIFFARD.
COMPLET
TION.
Improvements in Pneumatic and other Elastic Tyred Wheels.
I WILLIAM GIFFARD of 23 New Bailey Street, Salford, in the County of
Lancashire Engineer 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 and accompanying drawings:-
My invention consists in combining with the outer part of elastic tyred wheels
metal, (preferably aluminium where weight is a consideration) as in the case of
cycle tyres, to prevent slipping and to grip the road, although other metals may be
used for instance when used for motor cars or other road vehicles, steel or other
suitable metal pieces may be used.
To render my invention perfectly clear I will now proceed to describe the same
more particularly with reference to the annexed sheet of drawings.
Fig. 1 is a sectional view of a pneumatic tyre, shewing metal studs a. moulded in
or otherwise securely fixed to the outer cover b.
Fig. 2 is a sectional view of a pneumatic tyre shewing one method of securing
the metal pieces, in the form of eyelets having a thick wearing face. To secure
the said eyelet, a hole is first punched in the outer cover b. the metal eyelet a. is
then inserted a washer c. put on the shank of the eyelet, which is then closed on
the washer in the ordinary way, thus securing the metal piece a. in position, the

page_text: hole in the metal eyelet a. is then filled up, either with metal, rubber or any
suitable material to prevent moisture from penetrateing to the inside of the said
tyre.
Fig. 3 shews a sectional view of a pneumatic tyre, the outer cover b. of which is
moulded to receive one or more metal rings a. the said rings may be in one piece,
or made up in segments, or a ring or rings of spiral wire may be used.
Fig. 4 shews a sectional view of a pneumatic tyre the outer cover b. having a
groove formed round its perhiphery in which a flat metal ring a. is secured, or
a ring of metal, woven, or made up of plates, plain, corrugated or serrated may
'be used.
Fig. 5 shews a sectional view of a pneumatic tyre, the outer cover b. is formed
to receive one or more chain bands a. secured thereto.
Fig. 6 shews a sectional view of a pneumatic tyre for a motor car or heavy road
vehicle the outer cover b. of which is furnished with metal pieces a. in the form
of bolts, studs or staples, ring or rings &c. securely fixed thereto.
Fig. 7 shews a method of securing a solid stud a. to an outer cover b. with
washer c. rivetted together as shewn.
Fig. 8 shews a stud a. formed of two plates having a screwed shank and rivetted
as shewn.
Fig. 9 sliews portion of a detachable elastic band or ladder b. to encircle the
outer cover of a pneumatic or elastic tyre, having metal pieces a. secured as shewn
to the longitudinal bars.
Fig. 10 shews a metal chain ladder a. secured to the periphery of an elastic
tyre, which interposed between it and the road grips the same, and can be removed
-at will.
Fig. 11 shews a modification of Fig. 10 in the form of a wire rope ladder a. or it
may be made of wire twisted in a spiral form also removable at will.
The manufacture and construction of the metal pieces, and the application and
incorporation of the same with the outer part of elastic tyres may be greatly
-varied.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what I
· claim is
1. In elastic and pneumatic tyred wheels, the incorporation of metal pieces
(preferably aluminium) interposed between the tyre and the road substantially as
herein before described and shewn.
2. The various constructions and combinations comprising the improved tyres,
-or bands substantially as hereinbefore described and shewn.
Dated this 22nd day of March 1897
W. GIFFARD,
Applicant.