IMPROVEMENTS IN TYRES FOR CABS, CARRIAGES, AND OTHER VEHICLES TO BE USED ON ROADS
Year: 1879

page_text: LETTERS PATENT to William Isaac Taylor, of 21, Trafalgar Road, East Green-
wicli, in the County of Kent, Plumber, for the Invention of "IMPROVEMENTS
IN TYRES FOR CABS, CARRIAGES, AND OTHER VEHICLES TO BE USED ON
ROADS."
Sealed the 30th March 1880, and dated the 3rd October 1879.
PROVISIONAL SPECIFICATION left by the said William Isaac Taylor at the
Office of the Commissioners of Patents on the 3rd October 1879.
WILLIAM ISAAC TAYLOR, of 21, Trafalgar Road, East Greenwich, in the County
of Kent, Plumber. "IMPROVEMENTS IN TYRES FOR CABS, CARRIAGES, AND OTHER
VEHICLES TO BE USED ON ROADS."
The object of my Invention is to apply an improved tyre to the wheels of cabs
carriages, carts, or any description of road vehicle, by which the said vehicle may
be enabled with ease to mount upon or ride over any obstruction in the roadway,
such as the edges of any elongated ruts in the roadway, the rails of tramway lines,
or similar impediments to the path of the ordinary wheel.
Whereas the wheels of cabs, carriages, carts, and other descriptions of road
vehicles are at present much strained and injured, and the vehicles themselves are
made to drag across the road instead of easily following the direct traction of the horse
or horses, much to the danger of the traffic, by the wheels thereof becoming engaged
or held in the aforesaid ruts, tramway rails, or other obstructions; my improved
tyre will enable any wheel to which it may be fitted to at once and easily rise out
of, or mount upon, any such obstruction, and thus easily to follow the direct trac-
tion of the drawing power across such obstruction, saving greatly strain and wear
and tear upon such wheels, and rendering traffic more pleasant and safe.
My improved tyre may be made of iron, steel, or other suitable material, and
may be fitted to the felloes in the usual manner.
My improvement consists in making both edges of the tyre serrated with pro-
jecting teeth at suitable and numerous intervals, say, about one foot apart, or any
other distance that experience may decide to be best.
These serrated teeth or projections are made like those of a very coarse saw, one
edge of the tooth or projection being perpendicular to the plane of the wheel, or

page_text: even slightly overhanging, and the other edge being a long inclined face projecting
from the edge of the wheel.
My improved tyres must be so fitted to the wheels that the edges perpendicular
to the plane of the wheel, or even slightly overhanging, should be towards the
direction of rotation of the wheel, and the inclined edge following, as in a saw that
is cutting. I make the indentations of the teeth on both sides of the same tyre
alternately with the projections, that is to say, a projection on one side is opposite
an indentation on the other, so that any weakness of the average section of the
tyre is avoided.
I may make the projections of my improved tyres to overhang or project beyond
the whole body of the felloes of the wheel, or I may make the felloe as wide as my
improved tyre over its extreme projections, and may recess out of the felloes suit-
able indentations to match or correspond with those of the tyre.
When a wheel fitted with my improved tyre approaches any longitudinal
obstruction, such as the edge of a rut, or a tramway rail which may be slightly
across its course, the recesses in the tyre enable the wheel to come so close to the
obstruction, that one of the projections or teeth catches on the upper edge of the
obstruction, and thus to rise over or mount upon it. And this operation from the
great numbers of projections on the tyre is done so quickly that there is no per-
ceptible side drag or strain to the wheel mounting over the obstruction, however
oblique the angle may be at which the wheel approaches such obstructions.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Isaac Taylor in the Great Seal Patent Office on the 1st
April 1880.
WILLIAM ISAAC TAYLOR, of 21, Trafalgar Road, East Greenwich, in the County
of Kent, Plumber. "IMPROVEMENTS IN TYRES FOR CABS, CARRIAGES, AND OTHER
VEHICLES TO BE USED ON ROADS."
My Invention consists of an improved tyre to be applied to the wheels of cabs,
carriages, carts, or any description of road vehicle, by which the said vehicle may
be enabled with ease to mount upon or ride over any obstruction in the road way,
the rails of tramway lines, or similar impediments to the path of the ordinary
wheel.
Whereas the wheels of cabs, carriages, carts, and other descriptions of road'
vehicles are at present much strained and injured, and the vehicles themselves are
mado to drag across the road instead of casily following the direct traction of the
horse or horses, much to the danger of the traffic, by the wheels thereof becoming
engaged or held in the aforesaid ruts, tramway rails, or other obstructions; my
improved tyre will enable any wheel to which it may be fitted to at once and
oasily rise out of or mount upon any such obstruction, saving greatly strain and
wear and tear upon such wheels, and rendering traffic moro pleasant and safe.
My improved tyre may be made of iron, steel, or other suitable material, and
may be fitted to the folloes in the usual manner.
My improvement consists in making both edges of the tyre serrated with pro-
jecting teeth at suitable and numerous intervals, say, about one foot apart, or any
other distance that may appear advisable in each individual case.
These serrated teeth are made like those of a very coarse saw, one edge of the
tooth being perpendicular to the plane of the wheel or slightly overhanging, and
the other edge being a long inclined face.
My improved tyre must be so fitted to the wheels that the edges of the teeth
perpendicular to the plane of the wheel, or slightly overhanging, should be towards
the direction of rotation of the wheel, and the inclined edge following, as in a saw
that is cutting.
I make the indentations of the teeth on both sides of the same tyre alternately,
that is to say, a projection on one side is opposite an indentation on the other, so
that any weakness of the average section of the tyre is avoided.
I may make the projections of my improved tyre to overhang or project beyond
the whole body of the felloes of the wheel, or I may make the felloe as wide as my
improved tyre over its extreme projections, and may recess out of the felloes suit-
able indentations to match or correspond with those of the tyre.
When a wheel fitted with my improved tyre approaches any longitudinal
obstruction, such as the edge of a rut or a tramway rail which may be slightly
across its course, the recesses in the tyro enable the wheel to come so close to the
obstruction that one of the teeth catches on the upper edge of the obstruction, and
thus to rise over or mount upon it; and this operation from the great number of
teeth on the tyre is done so quickly that there is no perceptible side drag or strain
to the wheel mounting over the obstruction, however oblique the angle may be at
which the wheel approaches such obstructions.
And in order that my Invention may be better understood, I now proceed
to describe the Drawings attached hereto, reference being had to the letters and
figures marked thereon.
Figure 1 is the elevation of an ordinary wheel to which my improved tyre has
been fitted. The shaded recesses A show where the felloe B and the tyre C are
formed into the serration and corresponding recess necessary to produce the riding
action of the wheels over any obstruction; and I do not consider that any slighter

page_text: projections formed on the edge of the tyre by bevilling or half rounding from a
rectangular section, and in which the projections are not completely through the
body of the tyre, and the felloes recessed to correspond (where thay extend over
the teeth) are at all serviceable for such a purpose.
Figure 2 is a plan of the outside face or tyre C of the said wheel showing the
form of the serrated tooth D I prefer to use.
It will be seen that I prefer to make the felloes of the full width of the tyre C
over extreme points, the felloes being recessed to correspond with the indentations
of the tyre C. prefer also to make the forward projecting edge of the serrations D
on the tyre rather overhanging the perpendicular line of the tyre. I also prefer to
form these teeth D as shown, that is, with the inclined backs not brought right up
to the point of the tooth, but terminating some two or three inches back so as to
give a broad point to the tooth.
Having thus described the object and nature of my said Invention and the
manner in which the same is carried into effect, I wish it understood that I
claim :-
The formation of wheel tyres with serrated edges extending through their sub-
stance and corresponding recesses in the felloes where required, the teeth of said
tyres presenting a perpendicular or overhanging face to the direction of rotation of
the wheel, the back face retreating in a long incline, substantially as and for the
purpose hereinbefore described.
In witness whereof, I, the said William Isaac Taylor, have hereunto set my
hand and seal, this Thirty first day of March, in the year of our Lord One
thousand eight hundred and eighty.
In the presence of
S. P. WILDING,
City Patent Office,
23, Rood Lane,
London, E.C.,
Patent Agent.
W. I. TAYLOR. (LS.)