Improvements in the Construction of Rubber Tyres for Tricycles, Bicycles, and the like.
Year: 1888

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Construction of Rubber Tyres for Tricycles,
Bicycles, and the like.
I, GEORGE HURDLE, of No. 4, Adelaide Road, St. Denys, Southampton, Gas
Engineer and Patentee do hereby declare the nature of this invention to be as
follows:-
These improvements consist of corrugation, or forming a series of teeth as in the
case of a cog wheel, and may take any form whereby the object aimed at may best be
accomplished that is to say for the prevention of skidding or slipping in loose or
sandy soil and in climbing hills, and securing rubbers to the rims which shall be
accomplished by this peculiar corrugation or forming of teeth on the rubbers used for
the wheels of cycles and the like. This form of corrugation may be given both to
the inside and outside of the rubbers so that they may be more securely cemented or
fastened to the rims of cycles or like wheels, and turned when worn.
Dated this Fourteenth day of July 1888.

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction of Rubber Tyres for Tricycles,
Bicycles, and the like.
I, GEORGE HURDLE of 4 Adelaide Road St. Deny's Southampton, in the county of
Hampshire Engineer and Patentee, 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 present invention relates to rubbers used for the tyres of tricycles bicycles
and the like, and the principle objects thereof are to construct the said rubber tyre so
that the same may be more securely and firmly attached to the rim of wheel, and
manufactured more economically, and may be repaired when required with more ease
and less expense than is the case with a rubber tyre manufactured in the ordinary
manner; and also to form the said rubber tyre so that the face thereof when coming
in contact with loose slippery ground will not slip or skid, and when climbing a steep
hill will have more grip upon the road; to attain these objects I construct my
improved rubber tyre in any of the several forms illustrated by means of the drawings
hereunto attached and of which the following is a full description; Fig. 1. is a side
elevation of a whole rubber representing one form of my present improvements,
and fig. 2 is a cross sectional elevation of the same showing said rubber tyre fitted
into rin of wheel. Fig. 3 is an elevation of a whole rubber tyre representing
another form of my improvements, and fig. 4 is an enlarged sectional elevation of
a portion of same, and showing method employed of securing said rubber tyre to
rim of wheel.
Figs. 5 and 6 are sectional elevations of modified forms of portions of my improved
rubber tyre.
Similar letters denote corresponding parts in each figure.
The rubber tyre A may be made in one piece and corrugated in the form shown
at figs. 1. 2. 3 and 4, or in forms shown at b figs. 5 and 6, or any other suitable
form of corrugation may be employed as preferred.
By means of the corrugated form b the rubber obtains an increased grip upon the
road, and skidding when riding upon loose or slippery ground is obviated, and the
corrugated form 6 is also found to impart an easy springy notion to the tricycle
bicycle or the like thus reducing the oscillatory shake upon the wheels and thereby
causing the same to last longer than wheels constructed with ordinarily shaped
rubber tyres. The corrugated form b being imparted to both faces of improved
tyre rubber the operation of fixing the same to the rim of the wheel is made more
easy, and the fixing is rendered more secure because of a greater area thereof coming
in contact with the cement employed for the purpose of adhering said rubber to rim.
My improved tyre rubber may be composed of small sections or pieces c which are
threaded upon a wire d as shown at figs. 3 and 4, in order to secure this tyre A to the
wheel it is first placed around the rim f, after which the wire d is pulled taut and
the ends d', d² thereof are hooked to other as shown at fig. 4, the ends of the

page_text: particular sections or pieces which come near or close over said hooks d³, d² are
pressed back for the purpose, and after the said hooks have been suitably coupled the
sections are released and.they close to position shown thereby securing a continuous
tyre see fig. 3. Tyres constructed in this manner are found to be more economical
than ordinary ones because when any portion of the tyre is accidentally out or
becomes too much worn it is not necessary to replace an entirely new rubber
tyre, but a fresh or new piece or section may be threaded upon the wire d in
place of the worn or cut one which has been removed; the tyre may be then
again secured to rim of wheel in manner herein before described. This class of tyre
found to be very valuable to people travelling upon tricycles bicycles and the
like a distance into country roads because they can very easily carry with them a
supply of pieces or sections c, and should any tyre rubber become damaged or
worn they can with expedition and ease repair the same. My improved rubber A may
be made considerably lighter and less in cross sectional aera than those formed in the
ordinary manner on account of the corrugated forin greatly increasing its strength;
it is also found that the brake acts with considerable more effect when applied to my
present improved form of tyre and the usual cramping of the wrists of the rider
is greatly reduced. It will be obvious that the cement used fills up the spaces b¹
which come next, to the rim f and so form serrations or corresponding corrugations
within the rim of the wheel; thus rendering it impossible for the tyre to slip round
the rim. Of course where preferred the rim f of wheel may have the said spaces
or corresponding corrugations 61 formed therein and either made therewith or
attached thereto in which case they would correspond in form to the corrugated tyre
rubber as will be well understood.
I would have it understood that I do not claim transverse or longitudinal grooves
formed in or projections formed upon the face of a tyre rubber, as such an arrange-
ment is described in a Provisional Specification No. 4147 of 1878, nether do I claim
a rubber tyre having pieces cut out of the face thereof as described in William
Henry James Grout's Specification dated 28 March 1884 and numbered 5617 but
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,
1. Rubber tyres used for bicycles tricycles and the like which are corrugated in
the manner substantially as described and illustrated by means of the drawings
annexed.
2. Rubber tyres used for bicycles tricycles and the like which are composed of a
series or number of corrugated pieces on sections c, and secured in the manner sub-
stantially as described and set forth at figs. 3 and 4 of the accompanying drawings.
Dated to19 20th day of March 1889.
Dated LD1S 20th day of March 1809.
H. F. BOUGHTON M.I.M.E.,
Barnsley, Agent.