Improvements in Gas and similar Motor Engines.
Year: 1894

page_text: Date of Application, 7th Feb., 1894
Complete Specification Left, 7th Nov., 1894-Accepted, 8th Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in Gas and similar Motor Engines.
I, ALFRED ROWE BELLAMY, of Algoa Lodge, Adswood Lane, Stockport, in
the County of Chester, Engineer, do hereby declare the nature of this invention
to be as follows:-
My invention relates to the igniting apparatus of gas and similar motor engines
and is particularly applicable to large engines, but it may be applied to engines of
any size, the object being to prevent loss of time in case the ignition tube should
burst or give way.
To effect my purpose I employ say two ignition tubes each open to a separate
passage in connection with the combustion chamber, a valve being employed as
usual to close each passage between the chamber and its ignition tube. Both
ignition tubes are kept heated but only one is in operation the valve spindle of
which is actuated from a cam on the side shaft as usual to open it and is closed-
automatically by a spring; 1 pivot an adjustable striker which acts upon the
valve spindle so that in case the ignition tube should burst or give way the pivoted
striker can be readily turned over and it will then act upon the spindle of the other
valve and admit the explosive mixture to the second or reserve ignition tube, the
spring on the first named valve keeping it closed so long as the striker acts upon
the other valve..
To make the change automatic from one valve to the other in the case of
fracture of one ignition tube 1 propose to pivot a disc or vane of metal over or
near each chimney so that on the fracture of either tube the escape of fluid
mixture under pressure through the broken tube moves the disc which by suitable
connections tips or tilts the striker so that it would miss the valve for admitting
mixture to the broken tube and act only upon the other valve to admit mixture to
the reserve ignition tube.
The broken tube could then be cooled and a new one put in its place without
necessarily stopping the engine.
Dated this 6th day of February 1894.
H. B. BARLOW & GILLETT,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Gas and similar Motor Engines.
I, ALFRED ROWE BELLAMY, of Algoa Lodge, Adswood Lane, Stockport, in
the County of Chester, 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:-
My invention relates to the igniting apparatus of gas and similar motor engines
and is particularly applicable to large engines, but it may be applied to engines of
any size the object being to prevent loss of time in case the ignition tube should
burst or give way.

page_text: To effect my purpose I employ say two ignition tubes each open to a separate
passage in connection with the combustion chamber, a valve being employed as
usual to close each passage between the chamber and its ignition tube. Both
ignition tubes are kept heated but only one is in operation the valve spindle of
which is actuated from a cam on the side shaft as usual to open it and is closed
automatically by a spring; I pivot an adjustable striker which acts upon the valve
spindle so that in case the ignition tube should burst or give way the pivoted
striker can be readily turned over and it will then act upon the spindle of the
other valve and admit the explosive mixture to the second or reserve ignition tube
the spring on the first named valve keeping it closed so long as the striker acts
upon the other valve.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Figure 1 is a sectional elevation and Fig. 2 a sectional plan of the igniting
apparatus of a gas or similar motor engine to which my improvements are
applied.
Fig. 3 is an elevation, partly a section, showing the two ignition tubes and
Fig. 4 is an elevation of an arrangement for automatically changing the ignition
from one tube to the other.
In these views, a designate the two ignition tubes their chimneys, and
ee the atmospheric burners by which the said tubes are heated. Each tube a is
surrounded by a chimney b and is open to a separate passage e which leads through
a valve for f to a space g in connection with the combustion chamber of the
cylinder, not shown. The valves ffare kept normally closed by springs and one
valve and one ignition tube are held in reserve while the valve spindle of the other
valve fis actuated by an adjustable striker i which is carried in a swivel piece j
pivoted on a stud which is carried by a lever / fulcrumed on a stud m secured to
a bracket n. The lever is actuated by a cam o fixed on the rotating shaft
2
It will thus be seen that in case of accident to the ignition tube in use it can
immediately be thrown out of action and the other tube a brought into use by
simply turning over the swivel piece j and so bringing the striker into position to
act upon the other spindle f¹ and open the other valve f when the lever is next
raised by the cam o.
To make the change automatic from one valve to the other in the case of
fracture of one ignition tube I may adopt an arrangement such as that illustrated
by Fig. 4 in which I fix a bracket 9 on each chimney and to each bracket q I
pivot a lever r with a disc or vane s over its chimney and the lever r is connected
by a link t to the under side of the swivel piece j.
When an ignition tube bursts the escape of fluid mixture under pressure through
the broken tube moves its vane s and raises the lever r on which it is fixed and so
by the connecting link tilts over the swivel piece j consequently the striker i
begins to act upon the other valve spindle f1 to admit mixture to the reserve
ignition tube..
The broken tube could then be cooled and a new one put in its place without
necessarily stopping the engine.
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
1. The combination with the ordinary ignition tube, of a reserve ignition tube,
controlling valve, and means for actuating the same substantially as and for the
purposes specified.
2. The combination with two ignition tubes and separate valves controlling the
same, of a reversible striker for actuating either valve substantially as and for
the purposes specified.
3. The combination with two ignition tubes and their valves, of automatic

page_text: reversing gear for bringing the reserve ignition tube into action in case of the
fracture of the other tube substantially as and for the purposes specified.
Dated this Sixth day of November 1894.
H. B. BARLOW & GILLETT,
Agents for Applicant.