Year: 1888

page_text: Date of Application, 9th Apr., 1888
Complete Specification Left, 7th Jan., 1889
Complete Specification Accepted, 9th Mar.. 1889
VG Pr
I, GEORGE WOOLNOUGH, engineer, residing at Halberstadt, kingdom of Prussia,
do hereby declare the nature of this invention to be as follows:
My invention relates to boilers for portable, locomotive and marine engines in
which the heating surface is apt to become partly uncovered of water if the boiler
is brought into an inclined position. The improvement consists in providing the
boiler at the top with attachments adapted to serve as steam-spaces and to allow the
boiler to be filled with water to such height as that at the greatest inclination
occurring the entire heating surface will still remain covered.
The said attachments may consist in a horizontal tube connected to the boiler by
means of wide vertical tubes, or in a dome provided with horizontal tubular
extensions, or in two or more domes connected together at the top by pipes, the
normal water-lovel being in all cases so determined that no denudation of the heating
surface can take place when the boiler is inclined to the greatest extent that may
happen in practice.
Such of the said attachments as are formed by horizontal tubes or which comprise
tubular extensions, may be connected at one or both ends by a special pipe or pipes
to the water-space of the boiler in view of promoting the circulation of water.
1.1000
CARL PIEPER,
Agent for the Applicant.

page_text: I, GEORGE WOOLNOUGH, Engineer, residing at Halberstadt, kingdom of Prussia,
do hereby declare the nature of this invention and in what manner the same is to
te performed to be particularly described and ascertained in and by the following
statement:-
My invention relates to boilers for portable, locomotive and marine engines in
which the heating surface is apt to become partly uncovered of water if the boiler is
brought into an inclined position. The improvement consists in providing the boiler
at the top with attachments adapted to allow the boiler to be filled with water to such
height as that, at the greatest inclination occurring, the entire heating surface will
still remain covered.
The said attachments may consist in a horizontal tube connected to the boiler by
means of wide vertical tubes, or in a dome provided with horizontal tubular extensions,
or in two or more domes connected together at the top by pipes, the normal water-
level being in all cases so determined that no denudation of the heating surface can
take place when the boiler is inclined to the greatest extent that may happen in
practice.
Such of the said attachments as are formed by horizontal tubes or which comprise
tubular extensions, may be connected at one or both ends by a special pipe or pipes
to the water-space of the boiler in view of promoting the circulation of water.
In the annexed drawing are shown different modes of carrying out my invention.
Fig. 1 is a boiler of a portable engine provided at the top with the horizontal tubo r
connected to the boiler by the vertical tubes u. If the normal water-level of this
boiler, when standing in horizontal position, is at ss, the level, when the boiler is
inclined by an angle a, will be about on the line s' s¹, the heating surface being under
these conditions still covered by water.
Fig. 2 represents a boiler having three domes u¹ connected together at the top by
pipes v, so that the steam may freely pass from one dome to the other. The water-
level being duly determined, a like effect will be attained with this arrangement as
with the first one.
Another modification is shown by Fig. 3, in which an increase of the water-space
and the possibility of raising the water-level are obtained by means of a single
dome u, having the horizontal tubular attachments vi v³, extending therefrom parallel
to the boiler.
A form of the improvement which may be considered very advantageous for portable
engines, consists in making the fire-box part of the boiler sufficiently high as to form
a dome u¹ Fig. 4, and in arranging on the front end of the boiler a dome u° connected
to the former by the pipe v, and in which the cylinder of the engine may be placed.
In Figs. 3 and 4 the normal water-levels of the boilers in horizontal and in inclined
position are again indicated by the respective lines & s and s¹ s'.

page_text: For promoting the circulation of water, the tnbe r, Fig. 1, is connected to the
main part of the boiler by the pipe o. In Fig. 3 two like pipes o are shown, in
dotted lines, the said pipes in this case connecting the outer ends of the respective
tubular attachments of with the boiler proper.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
1. In portable, locomotive and marine steam-boilers, the combination with the
main part or body of the boiler, of attachments, such as the horizontal tube ? and
vertical connecting tubes u, Fig. 1, or two or more domes u¹ Fig. 2, u¹ uº, Fig. 4,
connected together by pipes v, or a single dome u³, Fig. 3, having horizontal
tubular extensions v', the said attachments being adapted to allow the boiler to be
filled with water to such height as that, at the greatest inclination occurring, the
heating surface will still r. main covered by water, substantially as described.
2. In a portable, locomotive or marine boiler provided with the horizontal tube r
and connecting tubes u, or with a dome u¹ and tubes v¹, the combination with the
said tubes or v¹, of a pipe or pipes o connecting the tube or tubes r, with the
body of the boiler, substantially as described.
Dated the Fourth day of January 1889.
CARL PIEPER,
Agent for Applicant.
Haseltine, Lake &.Co.,
45, Southampton Buildings, London, W.C.