Improvements in Solutions for Automatically Closing Punctures in Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 27th Sept., 1897
Complete Specification Left, 25th June, 1898-Accepted, 24th Sept., 1898
PROVISIONAL SPECIFICATION.
Improvements in Solutions for Automatically Closing Punctures in
Pneumatic Tyres.
I, HERBERT DU CANE, of 82, Bury Street, Darwen, in the County of Lancaster,
Physician, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved solution or combination of ingredients
for automatically closing and sealing punctures or holes in air tubes of pneumatic
tyres, the solution also acts as a tyre preservative by strengthening and preserving
the air tube.
According to this invention, the solution consists of the following ingredients
in about the undermentioned proportions.
207 part of best brown cane sugar, molasses or black treacle.
9 parts of rice starch or other starch.
2 parts of methyl or wood naptha.
92 parts of water..
2 parts of burnt sugar, or a sufficient quantity of other colouring matter.
The solution is prepared as follows:
mass.
The sugar is mixed with 64 parts of water and boiled until in a thick syrupy
The starch is then mixed with 12 parts of cold water and poured into the
sugar and water mixture when boiling, and kept constantly stirred for 10 minutes.
The burnt sugar or other colouring matter is then mixed with 16 parts of water and
stirred with the previous mixture until the whole is mixed. The product is allowed
to become quite cold and the methyl is then mixed with the lot, and the solution is
ready for use or bottling.
A small quantity of the solution is inserted into the air tube through the ordinary
valve, and the tyre is then inflated as usual, and the wheel revolved a few
times.
Improvements in Solutions for Automatically Closing Punctures in
Pneumatic Tyres.
I, HERBERT DU CANE, of 12, Bury Street, Darwen, in the County of Lancaster,
Physician, 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 :-
This invention relates to an improved solution or combination of ingredients for
automatically closing and sealing punctures or holes in air tubes of pneumatic tyres;

page_text: the solution also acts as a tyre preservative by strengthening and preserving the
air tube.
Such being the nature and object of my said invention, the following is a complete
description of same :-.
The best solution known to me consists of the following ingredients in about the
undermentioned proportions-
207 parts of sugar, preferably best brown cane sugar, but in the term " sugar
I include its kindred substances, molasses and black treacle.
9 parts of rice starch or other starch.
92 parts of water.
2 parts of burnt sugar, or a sufficient quantity of other like colouring matter.
The solution is prepared as follows :-
"
The sugar is mixed with 64 parts of water and boiled until in a thick syrupy
mass. The starch is then mixed with 12 parts of cold water and poured into the
sugar and water mixture when boiling and kept constantly stirred for 10 minutes.
The burnt sugar or other colouring matter is then mixed with 16 parts of water
and stirred with the previous mixture until the whole is mixed. The product is
allowed to become quite cold, and the solution is ready for use or bottling.
Since filing my application for a patent, I have found that the addition of methyl
to the solution is not advantageous, I therefor dispense with this ingredient. I have
also found that for large wheels such as are used on carriages and heavy vehicles,
the addition of a small quantity of wood pulp is an advantage.
In application a small quantity, say about two ounces of the solution to an
ordinary size of cycle wheel is poured through the air valve to the air containing
tube, and the latter is then inflated as usual and the wheel revolved so as to disperse
and circulate the solution therein.
my
Having now particularly described and ascertained the nature of said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
An improved solution for automatically closing punctures in pneumatic tyres
substantially such as hereinbefore described.