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Publication
_________________________________________________________________
Number GB402378A
i»?
Title
_________________________________________________________________
EN Title Improvements in and relating to ignition devices for internal
combustion engines
Abstract
_________________________________________________________________
5208.
Void [Abridged as open to inspection under Sect.
91 of the Acts, Feb.
22, 1932].
Drawings to Specification.
[Class 7 (iv).] Either electrode is hollow, with a non-return valve at
the outer end.
Description
_________________________________________________________________
No' -The application for a Patent has become void.
This print
inspectionw
Acts.
shows the Specification as it became open to public
on 22 February, 1932, under Section 91 ( 4) (a) of the
PATENT SPECIFICATION
Application
Accepted.
Date:
Feb
22,
1932
No
5208/32
4029
1
Complete not
COMPLETE SPECIFICATION.
Improvements
in and
Cornbul'ion Enghies.
relating
to
Ignition
Devices
for
Internal
I, SIDNEY WILLIAM VINE, 53, Human Street, I Krugersdorp, Transvaal,
Union of South Africa, British Subject, 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 ignition devices sparking plugs and the
like, as used in internal combustion engines, and has for its object
the cooling and cleansing of the electrode points of suca devices by
means of a current of induced air being i 5 periodically drawn across
the spark gap formed by the electrode points.
In the accompanying drawings Fig 1 is a view in section of a sparking
plug constructed according to this invention.
Fig 2 is a similar view of a modification.
Referrino to Fig 1 the present invention comprises essentially an
outer casing of steel A adapted to contain the insulator B and having
a male screwed end for fitting the standard thread provided in -the
cylinder heads of internal combustion engines The central electrode C
contained in the insulator B is tubular or hollow right through, and
is fitted on its external end with an automatic or non-return valve D
The internal end of this central electrode emerges from the insulator
for a short distance and to within one sixteenth inch from the point
of the earthed electrode E contained by the outer casing The action of
the automatic valve under working conditions, when fitted in the
cylinder of an internal combustion engine, is such that during the
induction stroke of the piston, pure air is drawn through the
automatic valve and central electrode and impinges on the point of the
earthed electrode.
During the compression, firing, and exhaust strokes of the piston, the
automatic valve or non return valve is closed and remains closed by
reason of internal pressures in the cylinder.
Referring to Fig 2 a modification is shown in which the automatic or
nonreturn valve may be adapted to the earthed electrode, the central
electrode in this instance being of solid construction.
Having now particularly
said invention, and in
described and ascertained the nature of my
what manner the same is to be performed, I
declare that what I
Claims
_________________________________________________________________
claim is:
1 An ignition device, sparking plug, or the like, having a tubular or
hollow insulated electrode, fitted with an automatic or non-return
valve through which air may be induced to flow by suction across the
spark gap to function as a cooling and cleansing agent upon the
electrode points.
2 An ignition device, sparking plug, or the like, having a tubular or
hollow earthed electrode, fitted with an automatic or non-return valve
through which air may be induced to flow by suction across the spark
gap to function as a cooling and cleansing agent upon the electrode
points.
3 An ignition device, sparking plug, or the like, constructed and
arranged substantially as herinbefore described and as illustrated in
Fig 1 of the accompanying drawing.
4 An ignition device, sparking plug, or the like, constructed and
arranged substantially as hereinbefore described and as illustrated in
Fig 2 -of the accompanying drawing.
Dated this 21st dav of February, 1931.
SIDNEY WILLIAM VINE.
Redhill: Prhited for His Majesty's Stationery
Malcomson, Ltd -1933, Price _ price 378.
Office,
by Love &
45.
i I 1-171.
1 1, w_ ( 1 ' '
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