IMPROVEMENTS IN THE CONSTRUCTION OF WHEEL TYRES
Year: 1870

page_text: LETTERS PATENT to Louis Sterne, of Great Queen Street, in the
City of Westminster, Engineer, for the Invention of "IMPROVEMENTS
IN THE CONSTRUCTION OF WHEEL TYRES."
°
Sealed the 19th April 1870, and dated the 1st March 1870.
PROVISIONAL SPECIFICATION left by the said Louis Sterne at the
Office of the Commissioners of Patents, with his. Petition, on the
1st March 1870.
I, LOUIS STERNE, of Great Queen Street, in the City of Westminster,
Engineer,, do hereby declare the nature of the said Invention for "Iμ-
PROVEMENTS IN THE CONSTRUCTION OF WHEEL TYRES," to be as follows:-
My Invention relates to the employment of vulcanized india-rubber
in the construction of wheel tyres, and my Invention consists. in forming
tyres, of segmental blocks of. india-rubber which have either been.
chemically united in the process of vulcanization in a manner already
known to segmental metal plates,, or which are moulded into proper
forms and let into recessed segmental metal plates. These segmental
plates with their blocks of india-rubber are secured to the rim of the
wheel in any convenient manner, and should any block become worn

page_text: or otherwise injured' it can be readily removed with the plate to which
it is attached and be replaced by a fresh block. I prefer to construct
these india-rubber blocks of such form that the joint between every two
adjoining blocks when they are secured to the wheel is oblique, that is
to say, not parallel with the axis of the wheel..
filed by the said Louis Sterne in the Great, Seal Patent Office on the
1st September 1870..
TO ALL TO WHOM THESE. PRESENTS SHALL COME, I, LOUIS
STERNE, of Great Queen Strect, in the City of Westminster, Engineer,
send greeting.
'
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of March, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Louis Sterne, Her special licence
that I, the said Louis Sterne, my executors, administrators, and assigns,
or such others as I, the said Louis Sterne, my executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein.
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE
CONSTRUCTION OF WHEEL TYRES," upon the condition (amongst others) that
I, the said Louis Sterne, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Louis Sterne, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the

page_text: following statement, reference being had to the accompanying Drawings,
that is to say :-
My Invention relates to the employment of vulcanized india-rubber
in the construction of wheel tyres, and my Invention consists in forming
tyres of segmental blocks of india-rubber which have been chemically
united in the process of vulcanization to segmental metal plates. These
segmental plates with their blocks of india-rubber are secured to the rim
of the wheel in any convenient manner, and should any block become
worn or otherwise injured it can be readily removed with the plate to
which it is attached and be replaced by a fresh block. Or instead of
employing segmental blocks of india-rubber which have been chemically
united to segmental metal plates I mould the segmental blocks of
suitable form and secure them to the rim of the wheel.
Figure 1 of the accompanying Drawings is a plan, and Figure 2 an
elevation of a wheel which is fitted with a tyre constructed of segmental
blocks of india-rubber according to my Invention; Figure 3 is a section
on a larger scale; and Figure 4 is a section through the line D*, D*, of
Figure 3.
B, B, are the segmental blocks of india-rubber; each of these blocks
has been chemically united in the process of vulcanization to a segmental
metal plate C. Sufficient of the plates C is left uncovered at each side
to form flanges to receive the D irons E, E, which extend around the
periphery of the wheel. D is the rim of the wheel; F, F, are screw bolts
which are passed through the D irons E through the flanges of the plates
C and the rim D of the wheel so as to secure the whole together. The D
irons E, E, may conveniently be made in three or other suitable number
of segments.
In Figures 5 and 6 I show the manner in which I secure segmental
blocks of india-rubber to the rim of the wheel when the said blocks are
not chemically united to metal plates. B¹, B¹, are the segmental rubber
blocks, they are moulded with flanges as shown. Behind each block B¹
is a metal plate C₁ and upon each flange of each block I place another
metal plate c. D¹ is the rim of the wheel; and E', E¹, are D irons;
F¹, F¹, are screw bolts which are passed through the D irons E¹, the
plates c, the flanges of the blocks B', the plates C³, and the rim D¹ so as
to secure the whole together. The form and arrangement shown in
Figures 5 and 6 may also be adopted when the plates C¹ and c arc
chemically united in the process of vulcanization to the blocks B¹.

page_text: And having now described the nature of my said Invention, and in.
what manner the same is to be performed, I declare that I claim,
First. Constructing wheel tyres of segmental blocks of india-rubber
which have been chemically united in the process of vulcanization to.
segmental metal plates and securing the..said plates and blocks to the
rim of the wheel, substantially as herein-before described and represented
in Figures 1 to 6.
Second. Constructing wheel tyres of segmental blocks of india-rubber
which are secured to the rim of the wheel, substantially as herein-before
described and represented in Figures 5 and 6..
In witness whereof, I, the said Louis Sterne, have hereunto set.
my hand and scal, this Thirtieth day of August One thousand,
eight hundred and seventy..
Witness,
J. C. MEWBURN,
Patent Agent,
172, Fleet Street,
London.
L. STERNE. (L.S.).