Improvements in connection with Steam Pipes.
Year: 1896

page_text: Date of Application, 15th Apr., 1896
Complete Specification Left, 22nd May, 1896-Accepted, 18th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in connection with Steam Pipes.
I, JOHANN DAVID HEINRICH REIMER, of 20, Admiralitätstrasse, Hamburg,
Germany, Engineer, do hereby declare the nature of this invention to be as
follows:-
With the high pressure at which modern steam-engines, and particularly the
more recent marine engines, work, the main steam-pipes are more liable to burst
than was previously the case. Many improvements have already been proposed
and adopted for obviating this risk, but up to the present time extremely few of
such devices have proved effective.
Now this invention relates to a device designed, not to prevent such steam-pipes
from splitting or bursting, but to minimize as far as possible in the case of such an
accident, the risk of scalding through the escape of hot water, and also in good
time to draw the attention of the engineer in charge to an impending accident of
the kind.
According thereto there is placed around the steam-pipe, a protective casing or
jacket which is strong enough, in the case of the bursting of the steam-pipe, to
receive and retain the escaping high-pressure steam, and even to serve as a main
steam-pipe until the boiler and the engine have been 'shut off, whether it be a long
or a short time before this be done.
An alarm-apparatus is also provided for indicating the leaking of the pipe thus
jacketed.
Fig. 1 of the accompanying drawings is a section and Fig. 2 an end elevation of
a jacket according to this invention applied to a straight steam-pipe; and Fig. 3
is a section showing such a jacket applied to a curved pipe.
In the case of new constructions, the flanges a (of the engine) and b (of the
boiler) to be connected by the main steam-pipe c are made at the very beginning
of sufficient size to allow the flanges d of the jacket m to be connected thereto
in a steam-tight manner and in the same way as the flanges of the 'steam-pipe c.
The jacket m consists of a number of parts which are adapted to slide
telescopically within one another, and are provided with steam-tight joints between
one another by means of stuffing-boxes n.
The several parts of the jacket m, and particularly the larger parts, may also be
further subdivided into shorter pipes which are connected with one another by
means of flanges o or screw-couplings. The object of this division of the jacket-
pipe is to enable it to be slipped over the stean-pipe, and to allow of the inspection,
and the packing, when necessary, thereof. If certain parts of the wider jacket be
also divided longitudinally, it will be an easy matter to render all parts of the
steam-pipe, even in the case of the most complicated and difficult bends and curves,
readily and conveniently accessible.
The attachment of the jacket m to the engine and to the boiler may be effected
in a direct manner, or by mounting special flanges upon the respective pipe
or valve-box unions. The last-mentioned way is unavoidable in the case of
existing plant. The mode of operation of the protective device remains however
the same.
The device can be adapted to suit all requirements: the illustrations annexed
hereto show merely two of the many possible forms of carrying the same into

page_text: By providing on the above described jacket a small alarm-valve p (Fig. 3), or
by arranging a similar alarm-device at a convenient spot and connecting it by
means of a small pipe with the jacket (Fig. 1), any leaking of the steam-pipe will
be at once notified and the necessary measures can be taken to remedy the same,
and thus prevent in good time all risk of a more serious accident.
Steam-pipes jacketed in this manner do not require the usual insulating or non-
heat-conducting covering, because the air contained in the jacket is a bad conductor
of heat. The cost of the ordinary jacketing should therefore be deducted from
the first cost of the protective jacket, which should not, therefore, be considered
by any means prohibitory in view of the increased safety of working.
Dated this 15th day of April 1896.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
Lean ripes.
I, JOHANN DAVID HEINRICH REIMER, of 20, Admiralitatstrasse, Hamburg,
Germany, 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 :-
With the high pressure at which modern steam-engines, and particularly the
more recent marine engines, work, the main steam-pipes are more liable to burst
than was previously the case. Many improvements have already been proposed
and adopted for obviating this risk, but up to the present tine extremely few of
such devices have proved effective.
Now this invention relates to means designed, not to prevent such steam-pipes
from splitting or bursting, but to minimize as far as possible, in the case of such
an accident, the risk of scalding through the escape of hot water, and also in good
time to draw the attention of the engineer in charge to an impending accident of
the kind mentioned.
According thereto there is placed around the steam-pipe, a protective casing or
jacket which is strong enough, in the case of the bursting of the steam-pipe, to
receive and retain the escaping high-pressure steam, and even to serve as a main
steam-pipe until the boiler and the engine have been shut off, whether it be a long
or a short time before this be done.
An alarm-apparatus is also provided for indicating the leaking of the pipe thus
jacketed.
Referring to the drawings filed with my Provisional Specification,
Fig. 1 shows partly in longitudinal section and partly in side elevation, and
Fig. 2 in sectional end elevation a jacket according to this invention applied to a
straight steam-pipe; and Fig. 3 is a similar view to Fig. 1 showing such a
applied to a curved pipe.
jacket
In the case of new constructions, the flanged pipes or branches a (of the engine)
and 6 (of the boiler) to be connected by the main steam-pipe c are made from the
first of sufficient size to allow the flanges d of the jacket m to be connected
thereto in a steam-tight manner and in the same way as the flanges of the steam-
pipe c.
The jacket m consists of a number of parts which are adapted to slide
telescopically one within another and are provided with steam-tight joints between
one another by means of stuffing-boxes n.
The several parts of the jacket m, and particularly the larger parts, may also be
further subdivided into shorter pipes which are connected with one another by means
of flanges o or screw-couplings. The object of this division of the jacket-pipe is

page_text: to enable it to be slipped over the steam-pipe, and to allow of the inspection, and the
packing, when necessary, thereof. If certain parts of the wider jacket be also
divided longitudinally, it will be an easy matter to render all parts of the steam-
pipe, even in the case of the most complicated and difficult bends and curves,
readily and conveniently accessible.
The attachment of the jacket m to the engine and to the boiler may be effected
in a direct manner, or by mounting special flanges upon the respective pipe
or valve-box unions. The last-mentioned way is unavoidable in the case of
existing plant. The mode of operation of the protective device remains however
the same.
The device can be adapted to suit all requirements; the illustrations annexed
hereto show merely two of the many possible forms of carrying the same into
practice.
By providing on the above described jacket a small alarm-valve p (Fig. 3), or
by arranging a similar alarm-device at a convenient spot and connecting it by
means of a small pipe with the jacket (Fig. 1), any leaking of the steam-pipe will
be at once notified and the necessary measures can be taken to remedy the same,
and thus prevent in good time all risk of a more serious accident.
Steam-pipes jacketed in the manner described do not require the usual insulating
or non-heat-conducting covering, because the air contained in the jacket is a bad
conductor of heat. The cost of the ordinary jacketing should therefore be
deducted from the first cost of the protective jacket, in determining the cost of
applying my invention which should not, therefore, be considered by any means
prohibitory in view of the increased safety of working.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A protective device for a steam-pipe, consisting of a jacket arranged to
enclose the said pipe throughout its length in a steam tight manner, and which, on
the leaking or bursting of the enclosed pipe, will prevent steam and hot water from
directly escaping into the surrounding atmosphere, substantially as herein before
described.
2. A protective device of the kind specified in the preceding claim, comprising a
number of telescopically movable interfitting portions or sections of piping, or of
a number of portions or sections of piping capable of being separated or taken
apart as desired substantially as hereinbefore described.
3. The combination with a steam pipe of a protective device of the kind
hereinbefore described and an alarm-device, substantially as and for the purpose
set forth.
4. My improved protective arrangements for steam-pipes constructed, arranged
and operating as hereinbefore described with reference respectively to and shown
in Figs. 1 and 2; and in Fig. 3 of the drawings referred to.
Dated this 22nd day of May 1896.
Dated this 22nd day of May 1896.
For the Applicant,
F. WISE HOWORTH,
46 Lincoln's Inn Fields, London, W.C., Agent.