Improvements in Gas Engines.
Year: 1892

page_text: Date of Application, 5th Oct., 1892
Complete Specification Left, 23rd May, 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Gas Engines.
I ADAM PATON of 114 Beeston Road Leeds in the County of York, Printing
Machine Maker, do hereby declare the nature of this invention to be as follows:-
This invention relates to relieving the back pressure on gas engines which drive
the exhaust up long pipes; by the application of a balance pipe to the exhaust
pipe.
That is to say, I use two long pipes (larger than the engine exhaust pipe) and
communicating at the bottom, then I introduce the engine exhaust pipe a short
distance up into the first of these two pipes, so that when the exhaust is driven into
the first pipe, the balance is disturbed and the air rushes from the second pipe into
the first pipe to keep up the balance; the result is that the engine is relieved
of the back pressure almost as if the exhaust were discharged into the open air.
Another means of attaining the same result is to introduce the engine exhaust
half way up a long pipe with the bottom end open of the larger pipe.
Dated this 5th day of October 1892.
ADAM PATON.
COMPLETE SPECIFICATION.
Improvements in Gas Engines.
I, ESTHER PATON, Widow and Sole Executrix of the late Adam Paton, of
114 Beeston Road, Leeds, in the County of York, 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 relieving the back pressure on gas engines which
drive the exhaust up long pipes, by the application of a balance pipe to the
exhaust pipe.
That is to say, two pipes of the same or varying (preferably varying) lengths
are used (larger than the exhaust pipe) and communicating at the bottom, and open
at their opposite ends to the atmosphere.
Another
Then the engine exhaust pipe is introduced into and carried a short distance up
the first of these two pipes, so that when the exhaust is driven into the first pipe
the balance is disturbed and the air rushes from the second pipe into the first pipe
to keep up the balance. The result is that the engine is relieved of the back
pressure almost as if the exhaust was discharged into the open air.
means of obtaining the same result is to introduce the engine exhaust halfway
up a long pipe with the bottom end of such larger pipe open to the atmosphere.
In the drawings hereunto annexed three methods are shown of carrying this
invention into practice in which :-
Figs. 1 and 2 are sectional elevations of the means for relieving the back
pressure, showing the exhaust pipe of the gas engine introduced at or near the
bottom or base thereof.
Fig. 3 is also a sectional elevation showing the exhaust pipe of the gas engine
introduced at a distance from the base or bottom of the relieving apparatus.
Like parts in each of the three views are marked with similar letters of
reference.
A and B are two pipes of a larger diameter than the exhaust pipe C of the
gas engine. The pipes A and B may be made of the same or varying lengths.
In the drawings they are shown of different lengths, that is to say, the pipe B
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page_text: is shorter than the pipe A, but the length of the pipe B may be varied as
circumstances require; and the ends a, b of both pipes are open to the atmo-
sphere, on opposite sides of the exhaust pipe C. The pipes A and B may be
connected together by any suitable means that will permit of their being a
distinct division between the two pipes, A and B, for some distance below the
up turned end c of the exhaust pipe, such as for instance, by the U like connection
as shown at D Fig. 1, in which the bend of the connection is carried below
the exhaust pipe; or the box-like connection as shown at E Fig. 2, where the
connection with pipe A is above that of pipe B, and the connection with the
latter pipe below the exhaust pipe. Provision is made in the connection D or E
for introducing the exhaust pipe C of the engine into such connection and then
turning its inner end c upwards into the pipe A; or the exhaust pipe C may
be introduced at any suitable point, say for instance, about half way up, into
the pipe A and its end e is turned upwards as shown at Fig. 3, in which case
the lower portion A¹ of pipe A is open to the atmosphere, thus dispensing with the
use of pipe B. The exhaust pipe C may be attached to the connection D or E,
or pipe A by any suitable and well known means, such as for instance, by a
flange and elbow as at Figs. 1 and 3, or by a flange directly as at Fig. 2.
When the exhaust from the gas engine is driven through pipe C into the pipe A
the balance is disturbed which causes the air to rush down the second pipe B
through the connection D or E into pipe A; or when the relieving apparatus is
arranged as at Fig. 3 then up the pipe A directly into pipe A to keep up the
balance. The result is that the exhaust is driven up pipe A and the engine
thereby relieved of back pressure as effectually, or nearly so, as if the exhaust
was discharged directly into the open air.
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 :-
1st. The improvements in the means or apparatus substantially such as herein
described and illustrated for relieving the back pressure on gas engines, which
improvements consist essentially in combining with the exhaust pipe of such engines
a balance pipe made in one or more parts open at its ends to the atmosphere on
opposite sides of said exhaust pipe, as set forth and illustrated.
2nd. In means or apparatus for relieving the back pressure on gas engines and
for driving the exhaust up long pipes, the application to and combination with the
exhaust pipe C of said engines, of a balance pipe composed of two branches, such
as A and B, communicating with the atmosphere on opposite sides of said exhaust
pipe and united together by a connection, such as D or E, all arranged and
described with reference to Figs. 1 and 2 of the accompanying drawings.
3rd. In means or apparatus for relieving the back pressure of gas engines and
driving the exhaust up long pipes, the combination with the exhaust pipe C of
said engines with a balance pipe A open at both ends to the atmosphere on opposite
sides of the said pipe C, arranged and as described with reference to Fig. 3 on the
accompanying drawings.
4th. The arrangement and combination of the various parts forming the
improvements in gas engines for relieving the back pressure on said engines and
driving the exhaust up long pipes substantially as herein described and illustrated
in the accompanying drawings.
Dated the Seventeenth day of May 1893.