Improvements in Marine and other Steam Engines.
Year: 1890

page_text: Date of Application, 22nd May, 1890
Complete Specification Left, 16th Feb., 1891-Accepted, 25th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Marine and other Steam Engines.
I, ROBERT ANDERSON, of Neil Buildings, Renfrew, in the County of Renfrew,.
Engineer, do hereby declare the nature of my invention for IMPROVEMENTS IN
follows:-
MARINE AND OTHER STEAM ENGINES to be
as
Firstly. The construction of a centrifugal pump of such design that it will in
itself combine and perform the functions of and be substituted for both air and
circulating pumps as generally constructed.
Secondly. By the present invention the functions of a circulating pump or of air
and circulating pumps combined are performed independent of the main engines,.
and the separate engine which drives said centrifugal pump can also be used to act.
as an ordinary donkey pump.
Thirdly. To construct the centrifugal pump of such form that the feed and bilge
pumps can be worked therefrom either independently or conjointly and when
necessary they can be thrown out of gear.
Fourthly. I do not confine myself nor is it necessary to place said centrifugal
pump in any particular part of the engine or boiler space.
Dated this the Twentieth day of May 1890.
COMPLETE SPECIFICATION.
Improvements in Marine and other Steam Engines.
I, ROBERT ANDERSON, of Neil Buildings, Renfrew, in the County of Renfrew,.
Engineer, do hereby declare the nature of my invention for "IMPROVEMENTS IN
MARINE AND OTHER STEAM ENGINES," and in what manner the same is to be.
performed, to be particularly described and ascertained in and by the following
statement:-
My invention has for its object, the construction of a centrifugal pump of such
design that it will in itself combine and perform the functions of and can be sub-
stituted for both air and circulating pumps as generally constructed in connection
with marine and other steam engines.
This is effected in the manner shewn by the accompanying drawing: Fig. I
Letter A shews an elevation of the pump.
Letter B is a circulating suction valve from condenser to which is fitted C, a
pipe leading to centrifugal pump.
Letter D is a non-return air suction valve in connection with which there is.
fitted E, a pipe led into centre of pump.
Letter F, is the discharge from centrifugal pump.
G is an engine for driving centrifugal pump, but the pump can also be driven
otherwise.
H. H. is the condenser.
J is the suction from sea injection valve.
K. feed suction.
The advantages of having a centrifugal pump in itself doing the duties of both
air and circulating pumps is obviously very great.
By this invention the functions of a circulating pump, or of air and circulating
pumps combined, are performed independently of the main engines and the separate
engine which drives the centrifugal pump can also be used to act as an ordinary
donkey pump.

page_text: Further, the said centrifugal pump can be constructed so that the feed and bilge
pumps can be worked therefrom, independently or conjointly, and when necessary
they can be thrown out of gear.
The arrangement shown on drawing is that of the circulating pump drawing from
the condenser, but it may be equally well adapted for forcing the water through
the condenser instead.
.
The various modes of application of my invention, as will be clearly understood,
are not necessarily confined to the mode shown on this sheet of drawing and
described in this Specification, but they include all the principal ways in which such
invention would be carried out in practice.
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
The construction of a centrifugal pump of such form and design that will in itself
combine and perform the functions of and can be substituted for both the air and
circulating pumps as generally constructed, substantially as herein shown and
described.
Dated this the 14th day of February 1891
ROBERT ANDERSON.