Improvements in Means for Heating the Ignition Device for Gas, Oil or Spirit Engines.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Means for Heating the Ignition Device for Gas, Oil
or Spirit Engines.
I, WALTER JOHN HUBERT JONES, of 134, Gladstone Road, Sparkbrook,
Birmingham, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in means for heating the ignition
device for gas, oil, or spirit engines, and its object is to provide an improved
arrangement by which all liability to its being extinguished by draughts or the
like will be obviated, by means of a combustion chamber, which is practically
sealed, and in which is situated an ignition tube, such chamber communicating
with a regulated air and vaporized spirit, or oil, or gas supply, which latter forms
the heating medium.
It consists broadly as follows:-The ignition combustion chamber is constructed
of or lined with refractory material so as to retain the enclosed heat as much as
possible. This chamber may be of any suitable shape the circular form appearing
to answer best, and its ends are closed with the exception of a small outlet at the
one end for the escape of the burnt products. Longitudinally central within this
chamber is the ignition tube whose one end communicates with the mixing
chamber of the motor, whilst its other end is closed. An opening is provided in
the chamber where first ignition may be made and then closed. From this
chamber the heating medium supply pipe is made to communicate with an
enclosed vessel which contains the gas or volatile or other medium which gives off
a gas or vapour. A further air supply pipe is made also to communicate with this
latter vessel in such a manner that the said air may first be passed through or
above the said gas, oil or spirit, or the pipe leading from the air supply may enter
the pipe leading from the said vessel.
Regulation taps may be placed at any desirable points to regulate the quantity
of air, and of vapour for mixture; and also for their admission into the ignition
combustion chamber. The air supply may be fed from any suitable source so
long that it is given in an evenly steady manner.
It is well known that by a mixture of vapour and air of the character herein
indicated an intense heat may be obtained, and its application in the manner
described produces a most fierce white heat of the ignition tube, which not being
in the form of flame cannot be blown out, nor readily cooled by reason of the
practically sealed ignition combustion chamber.
Dated this 17th day of July 1897.
CHARLES T. POWELL.
Applicant's Agent.

page_text: Improvements in Means for Heating the Ignition Device for Gas, Oil
or Spirit Engines.
I, WALTER JOHN HUBERT JONES, of The Oaks, Palmerstone Road, formerly
of 134, Gladstone Road, Sparkbrook, Birmingham, Engineer, 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 improvements in means for heating the ignition device
for gas, oil, or spirit engines, my object being to provide for the ready and
efficient heating of the igniter and to thoroughly protect the same from draughts
or the like.
In the accompanying sheet of explanatory drawings to be hereinafter
referred to.-
Figure 1 is a sectional elevation representing the application of my invention
to one form of igniter, whilst Figure is a sectional view showing its application
to another form of igniter.
Referring to Figure 1, the ignition tube A attached to some part as B of the
cylinder or valve box of the engine, is enclosed by the combustion chamber C
lined with asbestos or other refractory material D. The lower end of the chamber
is closed by the part B to which it is attached and the upper end of the chamber
is also closed, but one or more small outlets as care provided to permit of the
escape of the gaseous products of combustion. Through the heating medium
supply pipe E a current of air is forced in the direction shown by the arrow 1, by
means of a small fan or in any other convenient manner. By the branch E¹ the
pipe E is connected with the vessel F containing gas, oil, or spirit, and as the
air passes along the pipe E as described it will draw a quantity of gas or oil vapour
from the vessel as indicated by the arrow 2, and the mixture of air and gas or oil
vapour will then pass into the chamber as indicated by the arrow 3, where its
combustion produces an intense heat.
Suitable regulating taps are provided upon the pipes E and E¹ by which the
quantity of gas and air passing into the combustion chamber can be readily
controlled, and a mixture obtained of such proportions as shall give the best
heating effect.
Referring to Figure 2, the combustible mixture is introduced through the
pipe E to the interior of the plug G which forms a combustion chamber. The
plug G is screwed into the cylinder cover or valve box B¹, and retains in position
the ignition piece A¹ which becomes highly heated by the combustion of the
mixture in the chamber; the gaseous products of combustion escapes through
small apertures such as c¹.
I do not limit myself to the forms of combustion chambers or the arrangement
of the air or heating medium supply pipes as herein before described, but make
such modifications as may be necessary in the application of my invention to varying
services or requirements.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. In gas, oil, or spirit engines, the heating of the ignition device in a com-
bustion chamber by a mixture of air and gas or oil vapour, the said gas or vapour
being drawn into the chamber by the action of the incoming air, substantially as
dugonihad

page_text: 2. In gas, oil, or spirit engines, the combination comprising the ignition tube
enclosing chamber C and the air supply pipe E connected by a branch E' with the
vessel F containing gas, oil, or spirit, substantially as and for the purposes
described and as illustrated.
3. The combination with a gas, oil, or spirit engine of an igniter A¹ and the
hollow plug G forming a combustion chamber, substantially as and for the
purposes described and as illustrated.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.