Improvements in Apparatus for Effecting the Noiseless Exhaust from Steam, Gas, and other Engines.
Year: 1894

page_text: Date of Application, 27th Dec., 1894
Complete Specification Left, 21st Aug., 1895-Accepted, 21st Sept., 1895
PROVISIONAL SPECIFICATION.
[Communicated from abroad by CARL LOPER, of Lichtenberg, near Berlin, in
the Empire of Germany.]
Improvements in Apparatus for Effecting the Noiseless Exhaust
from Steam, Gas, and other Engines.
1, HENRY ILARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, do hereby
declare the nature of this invention to be as follows:-
My invention relates to apparatus for effecting the noiseless exhaust from steam,
gas and other engines.
The exhaust from steam, gas and other engines causes a noise which in many
enses has a disti bing or even troublesome offect. In order to obviate this noise,
esei voirs, pots or'the like and also pipes of different widths have heretofore' been
employed; they have however seldom succeeded to a considerable extent and
never in a pei feet manner.
In order to achieve this object I use the improved apparatus hereafter more
particularly described.
A pipe extending from the exhaust of the engine terminates in a wider pipe and
is tightened with a soft packing. The second pipe has at its other end a widened
part This widened end is suitably provided with a bridge-piece having a cential
aperture through which the exhaust steain or gas can pass to the rear will. The
bridge-piece has an aperture below for the water of condensation. For letting off'
this water use 18 made of a cock.
From the second pipe branches off a clay or metallic pipe into which is inserted
a conical sleove and is surrounded with as soft a packing as possible. The lower
end of the sleeve is however preferably kept free from packing. Into the sleeve is
finally inserted a discharge pipe forming a tight joint. The arrangement of the
branch pipe and sleeve may be modified without departing from the scope of my
said invention.
The apparatus herein before described diminishes the noise of the puffing so that
it will scai cely be audible.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C, Agents for the Applicant.
Improvements in Apparatus for Effecting the Noiseless Exhaust
from Steam, Gas, and other Engines.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co, Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, do hereby
declare the nature of this invention and in what manner the same 18 to ho
performed, to be particularly described and ascertained in and by the following
statement:-
The object of the present invention is an apparatus for deadening the noise or

page_text: sound originated in the exhaust or blow off pipe or at its oufice during the
discharge of the burnt or consumed gases or vapours in gas, steam and similar
engines.
A constructional example of the apparatus, which is most especially suitable for
obtaining the object aimed at by the present invention, is illustrated in the
accompanying diawing
The sand apparatus substantially comprises a tubular piece a upon the outor
extremity of which is fixed a cap into which a nation pipe is inserted which
latter seives as the discharge pipe proper. Between the cap and the upper
flange of the tubular piere a a conical chamber c tapering toward its lower end is
fixed by means of noses or projections As will be seen from the drawing, an
interval is thus created between the walls of the tubular piece a and the
chamber C, which interval is filled up with a packing consisting of soft or elastic
material.
In the chamber ca further pipe e is arranged which is held fast by means of a
pin passing through the chamber e and the said pipe e
This pipe is at its upper end filled with a substance preferably of such a
porosity as to allow of the gases or vapours passing through. The dimensions of
the comeal chest c 18 such that only a small annular interval remains at the lower
extremity between its walls and the pipe e; in vider however to prevent the pipe
from oscillating in the chest c, the said pipe may be held fast in its cential position
by means of small metal wedges f
If now the gases enter the tubular piece a, one portion of the same will enter the
pipe e, and will thus be forced to slowly pass through the porous substance hat
the top of the pipe. The remainder of the gases will partly pass upward between the
chamber and the pipo e, partly be forced against the lower lauge of the said
chamber whereby they lose their power, and will then slowly flow through the
pipe e and between this latter and the chamber c upward, thus escaping almost
without noise at the outside through the discharge pipe b'.
The whole of this apparatus may in addition be suitably connected with the
arrangement hereinafter described.
The tubular piece a 18 fixed to a pipo A, such as illustrated in the drawing. In
the said pipe A is arranged another pipe B placed in cement or any other suitable
substance or formed in Earl substance. The pipe A is at its rear end formed like
a box K, in which box terminates the free rear end of the pipe B. At the upper
part of the pipe A is another pipo C terminating in the box K of the pipe A,
which pipe C is likewise bedded or formed in cement, but only reaches up to the
place, where the tubular piece a is secured to the pipe A If now the gas enters
through the said pipe A, the same will flow into the box and is enabled to expand
therein and subsequently arrives through the pipe C into the tubular piece a,
whence it will escape into the open in the manner hereinbefore described. The
gas accumulating in the box K of the pipe A will thus, so to speak serve as a
butler for the gas that passes in afterwards so that this latter already depuved of a
considerable part of its force passes into the tubular piece a.
A discharge cock for water of condensation may be suitably airanged in the
bottom of the box-shaped enlargement K.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign corespondent, I declare that what I claim 18:-
1 An apparatus for the noiseless discharge of waste gases or vapoura
respectively, in gas, steam and other engines, the characteristic features being a
conical chamber e tapering in the ducction opposite to that in which the waste
gases or vapours pass, the said chamber being pucked or not outwardly with a
soft material, and at the large extremity of which 18 arranged the discharge
pipe leading to the atmosphere, and which chamber is provided in its interio
with a pipe e suitably secured against undesired alterations of position; the outlet

page_text: passage of said pipe e being stopped with a porous substance impeding the outflow
of the waste gases or vapous
2. The enlargement of the sound deadening device described in the first claun,
the characteristic feature of which consists of a pipe A enlarged at one extremity
so as to form a box, while at the side of the said pipe A 18 arranged the conical
chamber c held in place in a tubular piece a fixed to the said pipe A, which pipe A
contains in its interior a pipe B passing through the whole of its length and into
the box-shaped part K, and a shorter pipe C leading back from the said box K
toward the tubular piece a, the said pipes B and C being made of coment or any
other suitable substance or may be encased in such substance.
Dated this 21st day of August 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.