Improvements in Ignition Devices for Internal Combustion or Explosion Engines.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Ignition Devices for Internal Combustion
or Explosion Engines.
We, THOMAS HARRY GARDNER, EDWARD GARDNER, and LAWRENCE GARDNER,
all of Barton Hall Engine Works, Patricroft, Manchester, Engineers, do hereby
declare the nature of our said invention to be as follows:
-
This invention has reference chiefly to the type of explosion (gas, oil or spirit)
engine for which we obtained Letters Patent No. 18210/97 or to that type of
engine in which the admission and exhaust valves and governor mechanism
are operated by a set of eccentrics on the crank shaft, and the objects of this
invention are first, to adapt electric ignition devices thereto operated by the
eccentric which controls and operates the admission valves, secondly, to utilise
the breaking of an electric circuit for obtaining the desired sparking, thirdly,
to effect such sparking in a manner which allows of more perfect
"
timing" of
the ignition to suit various requirements, and fourthly, to so arrange and operate
the contacts which complete the circuit as to ensure of the contacts always being
in proper working condition.
On
In accordance with our invention we form an opening in the wall of the
ignition chamber and within such opening we fit a tubular bush. Within such
bush we mount a further bush and within such further bush a short spindle
(hereafter called the ignition spindle) adapted to slide endwise in the bush.
that end of the ignition spindle within the ignition chamber we fix a set of
arms or projections, and on the corresponding end of the bush we fix a set of
wings with inclined edges against which the said arms on the spindle, when
pressed forward as hereinafter described, are designed to rub.
The said ignition spindle and bush are the terminals of an electric circuit,
and when in contact complete such circuit, but due to suitable insulating material
between them they are held out of contact, except when the arms aforesaid on
the ignition spindle come in contact with the wings on the bush.
Upon the ignition spindle we mount a spring, and under suitable abutments
the purpose of such spring is to resist or retard any lateral or rotary movement
of the spindle, and to return the spindle, to its normal position forward after
each ignition. The normal position of the spindle is with the arms aforesaid
clear of the wings on the bush, but immediately the spindle is pushed inwards
the arms strike and (under the torsion of the spring) rub against the inclined
edges of the wings and thereby complete the circuit. When the spindle is
allowed to resume its normal position under the longitudinal extension of the
spring the effect of the arms on the spindle leaving the inclines is to break the
circuit and thereby create the desired sparking for exploding the combustible
mixture in the engine.
This making and breaking of contact between the arms on the spindle and
wings on the bush is effected by means of a trip" lever, operating under the
impulses of a rod coupled to the mechanism for operating the admission valves.
Upon such rod and upon the trip lever are small abutment plates.

page_text: Under the movements of the said rod the plate on the rod is designed to come
in contact with the plate on the " trip "lever and by such abutment trip or
tile the trip lever and thereby cause such. lever to push the spindle into the
ignition chamber and. complete the electric circuit as aforesaid. At a pre-
determined moment, and with the. further movement of the rod aforesaid, the 5
plates (due to a rising arm of the " trip" lever lifting the rod) slip their abut-
ment, and releasing the spindle allow it to resume its normal position. In so
doing the circuit is broken, the sparking takes place and the desired ignition of
the charge is effected.
By the adjustment of the spring contacts or abutments the timing of the 1
ignition may be varied.
In lieu of being impelled by an endwise force the spindle may be impelled by
a lateral (rotary) force with a suitable modification of the inclined wings or
edges.
Variations in the application to vertical engines and in details may be made 1
without departing from our invention.
T
001
1
2000
THOMAS HARRY GARDNER.
EDWARD GARDNER.
LAWRENCE GARDNER.
By John G. Wilson & Co.,
Agents.
Pon Devices for Internal Combustion
or Explosion Engines.
We, THOMAS HARRY GARDNER, EDWARD GARDNER, and LAWRANCE GARDNER,
all of Barton Hall Engine Works, Patricroft, Manchester, Engineers, 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 has reference chiefly to the type of explosion (gas, oil or spirit)
engine for which we obtained Letters Patent No. 18210/97 or to that type of
engine in which the admission and exhaust valves and governor devices
are operated by a set of eccentrics on the crank shaft, and the objects of this
invention are first, to adapt electrical ignition devices thereto operated by the
eccentric which controls and operates the admission valves, secondly, to utilise
the breaking of an electric circuit for obtaining the desired sparking, thirdly,
to effect such sparking in a manner which allows of the proper timing of the
ignition to suit requirements, and fourthly, to so arrange and operate the contacts
which complete the circuit as to ensure of the contacts being always in proper
working condition.
"
The accompanying 2 sheets of drawings illustrate the details of our invention
and with the assistance of the various figures, and letters of reference marked
thereon we will now describe the same.
On Sheet One,
Fig. 1 illustrates a longitudinal and vertical section through the ignition
chamber of our said engine, and through certain essential parts of our present
improvements as applied thereto. Fig. 2 is an end view, with certain of the parts
shewn in Fig. 1 removed. Figs. 3, 4 and 5 illustrate details separately.
Figs. 6 and 7 illustrates a modification in plan and elevation.

page_text: In accordance with our invention we form an opening in the wall of the ignition
chamber (A), or its cover (A), within which we fix a tubular bush (B). Within
such bush we mount a further bush or liner (C) and within such further bush (C)
a spindle (D) (hereinafter called the ignition spindle) which is capable of sliding
endwise in the said bush. On that end of the ignition spindle within the
ignition chamber we fix a set of arms or projections (E) and on the correspond-
ing end of the bush (B) we fix a set of wings (F) with inclined edges (F³)
against which the arms (E) on the spindle (D) when pressed forward as hereinafter
described are designed to rub and thereby rotate the spindle.
The said ignition spindle and bush (B) are the terminals of an electric circuit,
and when in contact complete such circuit, but due to suitable insulating
material (G) between them they are held out of contact except when the arms (E)
on the ignition spindle.come in contact with the wings (F) on the bush (B).
On that end or portion of the ignition spindle outside the ignition chamber
we mount a spring (H), and under suitable abutments the purpose of such
spring is to resist or retard any lateral or rotary movements of the spindle and
to return the spindle to its normal position for and after each ignition. The
normal position of the ignition spindle is with the arms (E) clear of the wings (F),
but immediately the spindle is pushed inwards the arms strike and (under the
torsion of the spring) rub against the inclined edges (F) of the wings and thereby
complete the electric circuit. When the spindle is allowed to resume its normal
position under the longitudinal extension of the spring the effect of the arms (E)
leaving the inclined edges (FX) is to break the electric circuit and thereby create
the desired sparking for exploding the combustible mixture in the engine.
The making and breaking of contact between the arms (E) and wings (F) are
effected by means of an insulated trip lever (I) operating under the impulses
of a rod () coupled to the mechanism (K) for operating the admission valve (L).
Upon such rod (J) and upon the trip lever (I) are small abutment plates (M)
and (N).
Under the movement of the rod (J) in the direction of the arrow (*) the
plate (M) comes in contact with the plate (N) and by such contact or abutment,
and the further movement of the rod in the same direction the lever (I) is caused
to rotate on its axis (I*) and to push the spindle into the ignition chamber and
complete the electric circuit as aforesaid. At a predetermined moment (according
to the adjustment of the plates (M) (N)) and with the further inward movement
of the rod (J), the plate (M) (due to a rising arm of the " trip lever lifting
the rod) slips its abutment with plate (N) and releasing the trip lever allow
the spindle (D) under the torsion and extension of the spring to resume its
normal position and in so doing break contact with the wings (F) and effect
the desired sparking for igniting the charge.
22
By the adjustment of the plate (M) the " timing" of the ignition may be
varied.
In lieu of being impelled into the ignition chamber by an endwise force the
spindle may be impelled forward by a lateral (rotary) force, with a suitable
modification of the inclined wings or edges, as shewn in Figs. 6 and 7.
In each modification it will be seen that the frequent rubbing of the armis (E)
against the inclined edges (F*) keeps the contracts, always smooth and clean
and ensures of perfect action.
The torsional tension of the spring is, by preference, regulated by a collar (0)
with flat or groove (0*) into which the fixed arm (P) takes and allows the collar
to slide and rotate. That arm of the lever (I) which bears against the spindle (D)
carries an insulated stud (Q), as also the arm of the trip levers shewn in
Figs. 6 and 7.
As a further modification we may arrange for the wings (F) to travel and
the spindle to remain fixed, or for the wings to rotate and the spindle to slide
only. Variations in the application to vertical engines and in details may also
be made without departing from our invention.

page_text: Having now particularly described and ascertained, the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is:-
1. In ignition devices for internal combustion engines, an ignition chamber,
an inclined contact or wing within the said chamber, a spindle passing from the
outside to the interior of the chamber, and normally insulated from and held clear
of the said contact, and means whereby the spindle is caused to complete and
break an electric circuit by making and breaking contact with the said wing
under the impulses of the valve controlling mechanism of the engine, sub-
stantially as herein set forth.
2. The ignition devices for internal combustion engines, the combination of
parts herein set forth and illustrated in Figs. 1 to 5 of the accompanying
drawings.
3. In ignition devices for internal combustion engines, the combination of
parts herein set forth and illustrated in Figs. 6 and 7 of the, accompanying
drawings.
--ניחת יתר
T
1
1000
THOMAS HARRY GARDNER.
EDWARD GARDNER.
LAWRANCE GARDNER.
By John G. Wilson & Co., Fels. I.P.A.,
Patent Agents to the Applicants.
THOMAS HARRY GARDNER.
EDWARD GARDNER.
LAWRANCE GARDNER.
y John G. Wilson & Co., Fels. I.P.A.,
Patent Agents to the Applicants.