Igniting Tubes for Gas and Petroleum Motors.
Year: 1891

page_text: Date of Application, 25th May, 1891
Complete Specification Left, 25th Feb., 1892-Accepted, 23rd Apr. 1892
PROVISIONAL SPECIFICATION.
Igniting Tubes for Gas and Petroleum Motors.
1, THOMAS RICHARD SHILLITO of 89 Chancery Lane in the County of
Middlesex, Engineer and Patent Agent, do hereby declare the nature of this
invention, a communication to me from abroad by Johann Mathäus Grob, Alfred
Oscar Schultze and Anton Vincenz Niemczik of Eutritzsch-Leipzig in the German
Empire, Merchants, to be as follows:-
The object of this invention is the manufacture of the igniting tubes of gas
and petroleum motors from a metallic alloy which is more durable and otherwise
better for the purpose than the material of which such igniting tubes have hitherto
been made.
Igniting tubes of the metals hitherto used, burn away in a short time or become
coated over or corroded inside so as to prevent the combustible gas from coming
into direct contact with the glowing surface of the tube.
Other materials such for example as porcelain or stone present the disadvantage
of readily bursting.
The igniting tube of this invention is made of a mixture of bronze and aluminium,
bronze being the larger proportion of the alloy.
Dated this 24th day of May 1891.
T. R. SHILLITO,
89, Chancery Lane, London, W.C.
COMPLETE SPECIFICATION.
Igniting Tubes for Gas and Petroleum Motors.
I, THOMAS RICHARD SHILLITO of 89 Chancery Lane in the County of
Middlesex, Engineer and Patent Agent, do hereby declare the nature of this
invention, a communication to me from abroad by Johann Mathäus Grob, Alfred
Oscar Schultze and Anton Vincenz Niemczik of Eutritzsch-Leipzig in the German
Empire, Merchants, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
For a number of years an igniting tube has been used in gas and petroleum
motors for the purpose of effecting ignition therein. Such a tube is heated from
the outside by means of a flame and kept at a very high temperature. It is closed
at its outer end and by its other end is in open communication with the interior of
the combustion chamber or it may be alternately separated from, and placed in
communication with the combustion chamber by means of a slide or valve or other
working organ. When the compression of the combustible gaseous mixture takes
place some of this is forced into the said tube and is ignited by the heated surface
of the same at the moment the piston reaches the inner end of its stroke. Tubes
for this purpose have been made of various metals and other substances all of which
however are faulty in some respect. The metals hitherto used burn away in a short
time or become coated over or corroded inside so as to prevent the combustible
gaseous mixture from coming in direct contact with the heated surface of the
tube. Other materials such for example as porcelain or stone are very liable to
fracture.
The object of this invention is the manufacture of the igniting tubes of gas and
petroleum motors from a metallic alloy which is more durable and otherwise better
for the purpose than the material of which such igniting tubes have hitherto been

page_text: The said alloy is made of a mixture of copper and aluminium, copper being the
larger proportion of the same. The proportions of 95 per cent. of copper and
5 per cent. of aluminium are those I prefer.
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:
Igniting tubes for gas and petroleum motors made of an alloy of copper and
aluminium substantially as described.
Dated this 25th day of February 1802
T. R. SHILLITO,
89, Chancery Lane, London, W.C.