IMPROVEMENTS IN THE MEANS EMPLOYED FOR PROPELLING, STEERING, AND MANOEUVERING VESSELS, SHIPS, BOATS, AND OTHER NAVIGABLE BODIES
Year: 1866

page_text: PROVISIONAL SPECIFICATION left by George Henry Phipps at the
Office of the Commissioners of Patents, with his Petition, on the 6th
December 1866.
I, GEORGE HENRY PHIPPS, of No. 24, Great George Street, Westminster,
in the County of Middlesex, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN THE MEANS EMPLOYED FOR PROPELLING, STEERING, AND
MANOEUVERING VESSELS, SHIPS, BOATS, AND OTHER NAVIGABLE BODIES," to be as
follows:-
My Invention consists in the combination in one and the same vessel or
navigable body of two distinct systems of propulsion, one of which is the
known system under which water is continually taken into and ejected from
the interior of the vessel, and which I will term the "emissive system," while
the other system may be either that of the screw propeller or that of the
paddle wheel.
The emissive system employed, as also the construction of the screw pro-
peller or paddle wheel, and the respective machinery for working the same
may be of any known arrangement, the special construction of such machinery
or apparatus forming no part of my present Invention.
By the combination of the said two distinct systems of propulsion in one
and the same vessel, the following advantages may be obtained:-
Firstly, the screw propeller or paddle wheel being under ordinary cir
cumstances alone employed for propelling the vessel, the emissive system may
then be used for steering purposes as an auxiliary to the rudder, and thus a

page_text: very great steering power and facility of manoeuvering obtained, while when
on an emergency an increase of speed is required the emissive system may be
made to act as an auxiliary to the screw or paddle wheel for propelling the
vessel.
Secondly, should by any accident the screw or paddle wheel become disabled
the emissive system may be alone employed to propel the vessel.
Thirdly, if at any time it should be required to propel the vessel at a
slower speed than the ordinary speed, or if it be required to manoeuvre the
vessel without of necessity moving ahead or astern, in both such cases the
emissive system may with advantage be alone employed.
Fourthly, should the rudder become disabled the steering of the vessel may
still be efficiently performed by means of the emissive system alone, while the
propulsion of the vessel is effected by the screw or paddle.
And, lastly, if both screw or paddle wheel and rudder are disabled, the
emissive system is still available for both propelling and steering the vessel.
In addition to these main advantages the pump or pumps working the
emissive system may also be employed for pumping out the vessel.
The emissive system may also be employed as an auxiliary steering power
alone in vessels having both paddle wheels and screw propeller or propellers.
As before stated the arrangement for working the two systems of propulsion
may be variously modified, thus both the screw or paddle wheels and the
emissive system may be worked by means of one and the same steam engine
and boiler. or boilers, in which case the emissive system is so arranged as to
be capable of being thrown in and out of gear with the engine; or the two
systems may be worked by two separate engines, but by one and the same
boiler or set of boilers; or again the two systems may be worked by two
entirely distinct sets of engines and boilers.
of
A convenient mode of working the emissive system in combination with a
screw propeller under the first-named arrangement and for the attainment of
some of the foregoing advantages would be to place the pump or pumps
the emissive system upon the propeller shaft, with which it may then be
thrown in or out of gear by means of a clutch apparatus as required. :