Improved Means and Apparatus for Regulating the Speed of Gas and like Engines Driving Dynamo Electric Machines.
Year: 1899

page_text: Date of Application, 17th Oct.,
1899
Commenta
TRUVIDIONAL SPECIFICATION.
Improved Means and Apparatus for Regulating the Speed of Gas and
like Engines Driving Dynamo Electric Machines.
We, JOHN RICHARDSON, of the Firm of Robey and Co. Limited, Globe Works,
Lincoln, and FRANCIS SAMUEL HIGHTON, of 34, Newark Road, Lincoln, Engineers,
do hereby declare the nature of this invention to be as follows:-
This invention relates to the regulation of gas and vapour engines when driving
dynamos for the generation of the electric current, and consists of a solenoid
wound to suit the nature of the current, and is connected in shunt or series, as
the case may be.
For the purpose of this invention, we employ, say, a couple of solenoids in
electrical circuit, each solenoid having a soft iron core connected by a strap or
plate to which the explosive mixture and the air inlet valves are attached, these
working in chambers of the engine or in relation thereto.
In action, if the cores be drawn up or inwardly into the solenoid by the current,
the valves will become more or less closed thus reducing the volume of the charge
and thereby the impulse, the speed of the engine being reduced until the desired
E.M.F. is obtained.
If more load be switched into circuit, the current passing through the solenoid
is lessened in order that the descending cores may open the valves to a greater
extent and thereby allow of more explosive mixture to pass into the cylinder for
increase of speed until the E.M.F. is again restored.
Should by accident, the regulator circuit be broken from any cause, such as
the breaking of the connecting wires or of the dynamo driving belt or the like,
the solenoids by losing their excitation would allow the cores to drop and close
the ignition port valve of the engine, and thus automatically stop the working
the ignition port valve being in this case on an extension of the explosive mixture
valve rod.
If this valve be dispensed with, the apparatus is applicable for engines driving
other than electrical machines, such as during daylight, in which case if the
regulator be switched out of circuit, the working of the engine is not stopped,, the
arrangement being such that on the regulator being again switched into circuit,
the lighting and motive power by the current is again established.
A variable resistance may be inserted in the electrical regulator for enabling
he engine to be run at any desired speed.
This consists of a series of resistances in contiguity commanded by a handle
and a contact plate movable as desired over the required number of contact
points.
The employment of such a variable resistance appliance will ensure a reliable
neans for determining the working of the engine, as the quantity of explosive
nixture is exactly proportioned to the load, and where shunt wound dynamos
re required to give a constant voltage under varying loads, the variation of
peed is considerable this is automatically given by the regulator.

page_text: The soft iron cores and the valves before referred to may be in connection with
any ordinary governor apparatus for a mechanical regulation.
The important features of this invention are:-
1. An electrical regulation of the constant ratio of explosible mixture and air
supplied to a gas or vapour engine to ensure an impulse every possible time.
2. The employment of our electrical regulator to any gas or vapour engine
when supplied by current from an independent source to accomplish perfectly
constant speed and turning moment.
3. Combining our electrical regulator with a shut off valve in the event. of
cessation of the current.
4. The employment of our electrical regulator with a single explosive valve
in a gas or vapour engine.
5. Combining a mechanical governor and an electrically operative regulator
with a gas or vapour engine.
6. In combination with or as part of our invention, the hereinbefore described
arrangement of variable resistance in the regulator circuit for enabling the speed
and the E.M.F. to be varied at will.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said John Richardson and Francis Samuel Highton.
Improved Means and Apparatus for Regulating the Speed of Gas and
like Engines Driving Dynamo Electric Machines..
We. JOHN RICHARDSON, of the Firm of Robey & Co., Ltd., Globe Works,
Lincoln, and FRANCIS SAMUEL HIGHTON; of 34, Newark Road, Lincoln, 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 follow-
ing statement:-
This invention relates to the regulation of gas and vapour engines when driving
dynamos for the generation of the electric current. and consists of a solenoid
wound to suit the nature of the current, and is connected in shunt or series, as
the case may be.
For the purpose of this invention, we employ say, a couple of solenoids- in
electrical circuit each solenoid having a soft iron core connected by a strap or
plate to which the explosive mixture and the air inlet valves are attached, these
working in chambers of the engine or in relation thereto.
"
In action, if the cores be drawn up or inwardly into the solenoid by the current,
the valves will become partially or completely closed correspondingly thus reduc-
ing the volume of the charge and thereby the impulse, the speed of the engine
being reduced until the desired E.M.F. is obtained.
If more load be switched into circuit, the current passing through the solenoid
is lessened in order that the descending.cores may open the valves to a greater
extent and thereby allow of more explosive mixture to pass into the cylinder,, for
increase of speed until the E.M.F. is again restored.
Should by accident, the regulator circuit be broken froni, any cause, such as
the breaking of the connecting wires or of the dynamo driving belt or the like,
the solenoids by losing their excitation would allow the cores to drop and close
the ignition port valve of the engine, and thus automatically, stop the working

page_text: the ignition port valve being in this case on an extension of the explosive mixture
valve rod.
If this valve be dispensed with, the apparatus is applicable for engines driving
other than electrical machines, such as during daylight, in which case if the
regulator be switched out of circuit, the working of the engine is not stopped, the
ai rangement being such that on the regulator being again switched into circuit,
the lighting and motive power by the current is again established.
A variable resistance may be inserted in the electrical regulator for enabling
the engine to be run at any desired speed.
This consists of a series of resistances in contiguity commanded by a handle
and a contact plate movable as desired over the required number of contact
points.
The employment of such a variable resistance appliance will ensure a reliable
means for determining the working of the engine, as the quantity of explosive
mixture is exactly proportioned to the load, and where shunt wound dynamos
are required to give a constant voltage under varying loads, the variation of
speed is considerable this is automatically given by the regulator.
The soft iron cores and the valves before referred to may be in connection with
any ordinary governor apparatus for a mechanical regulation.
Referring to the annexed drawings of which Figure 1 is a sectional elevation,
the terminals A, A, are connected with the electrical circuit which excites the
solenoid B, the soft iron cores C, are then drawn up. gradually closing the ports D
and E, being the explosive mixture and air passages respectively, thus reducing the
volume of the charge and thereby the impulse, the speed of the engine is thus
reduced until the desired E.M.F. is obtained. If more load is switched into
circuit, the current passing through the solenoid, is lessened, allowing the cores C
to lower slightly, thus admitting more explosive mixture to pass into the cylinder,
thereby increasing the speed until the E.M.F. is restored.
Should the regulator circuit be broken, by accident to the connecting wires,
breakage of dynamo driving belt, or any other cause, the solenoids having lost
their excitation the cores drop and close the explosive inlet F thus automatically
stopping the engine.
Figure 2 shows an end elevation of the combined regulator shown at Figure 1.
Figure 3 shows the solenoid acting on the explosive valve only, this arrange-
ment being used for the easy adaption of the regulator to existing engines, the
action being the same as before described.
Figure 4 shows a section through the explosive valve when applied to engines
driving other than electrical machinery in the daytime, the regulator being
switched into circuit when the lighting or motive power by the current is required.
The regulator when switched out of circuit, does not stop the engine in this case,
as no valve is fitted on the explosive inlet.
Figure 5 shows a modified arrangement of electrically controlled regulator.
adaptable for mechanical regulation and Figure 6 shows the electrical and
mechanical regulator combined the valves being the same as in Figure 1.
A variable resistance Figure 7 is inserted in the electrical regulator, by which
means the engine can be run at any desired speed, this being a very convenient
and economical arrangement, as the quantity of explosive mixture is exactly pro-
portional to the load, and in the case where shunt wound dynamos are required
to give a constant voltage, under varving loads, the variation in speed is con-
siderable, this is automatically given by the regulator.
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) The electrical regulation of the constant ratio of explosible mixture and
air, as shown in Figure 1, and in the modification Figure 5 ensuring an impulse
every possible time, as set forth.

page_text: (2) The employment of such regulator with any engine, which can be supplied
by current from an independent source to accomplish perfectly constant speed
and turning moment substantially as specified.
(3) The combined regulating and shut off valve as shown in Figures 1 and 3,
which will operate in the event of cessation of the current from any source
whatever.
(4) The method of regulation by the single explosive valve as described and
shown in Figure 4.
(5) The combination of electrical and mechanical regulator as shown in
Figure 6.
(6) The arrangement of variable resistance in the regulator circuit, enabling
the speed and E.M.F. to be varied at will, as shown in Figure 7.
Davu
CHIS
Duty
R. CORE GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for J. Richardson and F. S. Highton.