THE PROTECTION AND PRE- VENTION OF FOULING OR INJURING BY FOREIGN MATTERS THE SCREWS, PADDLES, RUDDERS, AND STERN-POSTS OF STEAMSHIPS OR OTHER VESSELS
Year: 1859

page_text: LETTERS PATENT to Henry Buckworth Powell, of Foxleize Park,
Lyndhurst, Hants, for the Invention of "THE PROTECTION AND PRE-
VENTION OF FOULING OR INJURING BY FOREIGN MATTERS THE SCREWS,
PADDLES, RUDDERS, AND STERN-POSTS OF STEAMSHIPS OR OTHER VESSELS."
Sealed the 1st May 1860, and dated the 8th November 1859.
PROVISIONAL SPECIFICATION left by the said Henry Buckworth Powell
at the Office of the Commissioners of Patents, with his Petition, on the
8th November 1859.
I, HENRY BUCKWORTH POWELL, of Foxleize Park, Lyndhurst, Hants, do
hereby declare the nature of the said Invention for "THE PROTECTION AND
PREVENTION OF FOULING OR INJURING BY FOREIGN MATTERS THE SCREWS, PADDLES,
RUDDERS, AND STERN-POSTS OF STEAMSHIPS OR OTHER VESSELS," to be as
follows:-
Of a mode of preventing spars and other debris floating in the water
dragging from the ship, or from any other source or cause, injuring or getting
foul of the screw, paddles, rudder, and stern-post of steam ships or other
vessels, which, by fouling or destroying the machinery, would endanger the
safety of the vessel. Towards, or at the stern of the vessel, a grating or open
framework made of wood, iron, or any other suitable metal or materialy is hung

page_text: upon hinges or pivots, or other similar means; and may be partly or totally
immersed in the water, or entirely free therefrom, and may be fixed on one or
both sides of the screw, paddles, rudder, stern-post, or the vessel. Attached
to this grating or framework is an arrangement of ropes, chains, or other
similar apparatus, to draw or swing it in the position required, and may be
worked from the inside or outside of the vessel guided by wheels or pullies
fixed thereon. When it is not required to use the grating, it is drawn close
against the side of the vessel in the direction of the bow or front, and, when
needed, in the direction of the stern, when it incloses the space occupied by
the screw; rudder, and other machinery of the ship, serving as a guard to
keep off any foreign matters in the water. A similar apparatus is applicable
to paddle steamers and other vessels. Also, instead of the grating being
suspended upon pivots or hinges, it might be made to slide up and down by
an arrangement of rods and guides, or similar apparatus fixed at the stern.
Also it might be suspended at the stern free from the water, and allowed to
swing down when required. It would thus be no impediment to the speed of
the vessel when not in. use...
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Buckworth Powell in the Great Seal Patent Office
on the 8th May 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BUCKWORTH POWELL, of Foxlieze Park, Lyndhurst, Hants, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing, date the Eighth day of November, in the year of our
Lord One thousand eight hundred and sixty, in the twenty-third year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Henry Buckworth Powell, Her special licence that I, the said
Henry Buckworth Powell, my executors,, administrators, and assigns,. or.
such others as I, the said Henry Buckworth Powell, my executors, ad-
ministrators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "THE PROTECTION AND PREVENTION OF FOULING OR
INJURING, BY FOREIGN MATTERS THE SCREWS, PADDLES, RUDDERS, AND STERN-

page_text: POSTS OF STEAMSHIPS OR OTHER VESSELS," upon the condition (amongst others)
that I, the said Henry Buckworth Powell, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Buckworth Powell, do hereby
declare the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement :-
Of a mode of preventing spars and other debris floating in the water
dragging from the ship, or from any other source or cause, injuring or getting
foul of the screw, paddles, rudder, and. stern-posts of steamships or other
vessels, which, by fouling or destroying the machinery, would endanger the
safety of the vessel. Towards, or at the stern of the vessel, a grating or open
framework made of wood, iron, or any other suitable metal or material is hung
upon hinges or pivots, or other similar means, and may be partly or totally
immersed in the water, or entirely free therefrom, and may be fixed on one or
both sides of the screw, paddles, rudder, and stern-póst of the vessel. Attached
to this grating or framework is an arrangement of ropes, chains, or other
similar apparatus, to draw or swing it in the position required, and may be
worked from the inside or outside of the vessel, guided by wheels or pullies
fixed thereon. When it is not required to use the grating, it is drawn close
against. the side of the vessel in direction of the bow or front of the vessel, and,
when. needed, in the direction of the stern, when it encloses the space occupied
by the screw, rudder, or other machinery of the ship, serving as a guard to
keep off. any foreign matters in the water. A similar apparatus is applicable
to paddle steamers or other vessels. Also, instead of the grating being
suspended on pivots or hinges, it might be made to slide up and down by an
arrangement of rods and guides, or similar apparatus fixed at the.stern. Also,.
it might be suspended at the stern free from the water, and allowed to swing
down when required. . It would thus be no impediment to the speed of the.
vessel when not in use.
The practical application of my Invention will be readily understoodi.by.
referring to the Drawings accompanying these Presents, in which I have.
marked the same with letters and figures of reference corresponding with the
fellowing description of the saine;

page_text: DESCRIPTION OF THE. DRAWINGS.
Fig. 1 represents a side elevation of the stern end of a screw steamship
provided with a guard, shewn in the Drawing close against the side of the
vessel; and consequently not in service; Fig. 2 is a perspective elevation of
the guard when in service. Referring to Fig. 1, A is the guard supported at
the bottom at D, and at the top at B, by means of hinges or pivots, or any
other suitable arrangement. The block C is attached to the guard, and the
block E to the side of the vessel; these blocks are connected together in the
usual manner by means of a rope M, and serve to pull the guard from the side
of the vessel into working position; F is a stay or strut, one end of which is
attached to the guard, the other to a rope or chain passing into the interior of
the vessel through the hole O, and is intended to give stiffness to the guard
when in the position shewn in Fig. 2. The ropes or chains J and K attached
to the guard, as shewn in Fig. 2, and passing through the side of the vessel at
R and S, are used to haul back the guard against the side of the vessel, and
the ropes or chains G and H are to ship and unship the guard when required.
The guard turns freely upon the pivot resting in the socket or bearing D, and
in the hinge or other suitable joint at B. A pin or stud L secures the guard
to the joint at B. Supposing the guard to be in the position shewn in Fig. 1,
to put it in working position, the ropes or chains J and K (see Fig. 2) must
be loosened, and the rope M hauled in, which will draw the blocks together,
and consequently pull the guard from the side of the vessel, at the same time
the stay or strut F is drawn into the recess O by pulling in the rope or chain N
untill the cross. pin or abutment P rests against the side of the vessel. The
rope M is then secured, and the ropes or chains J and K hauled in tight,
when the guard is in working order, and thus protects the screw from spars or
other foreign matters floating in the water, or dragging from the ship.
To ship the guard when at sea.-The guard is lowered over the side by
means of the rope H untill it nearly reaches the bearings. Then, by drawing
in the rope G, the guard is brought close to the side of the vessel, and over
the bottom bearing D, both the ropes, namely, H and G, are then slackened,
and the lower end of the guard falls into the bearing D. The guard is then
guided into the top bearing or hinge by pulling in the rope V (see Fig. 2),
and the pin L secures it. To unship it, the pin L must be taken out, and the
ropes H and G slackened, when the guard may be unshipped by hauling in
the rope H.
I
Having now particularly described and ascertained the nature of
:
my Inven-

page_text: tion, and in what manner the same is to be performed, I would have it
understood that I do not confine myself to the arrangements or details shewn
and described, so long as the peculiar character of my Invention is retained;
but what I claim is, the protection and prevention of fouling or injuring by
foreign matters the screws, paddles, rudders, and stern-posts of steamships by
means of a guard, arranged substantially as herein-before described.
In witness whereof, I, the said Henry Buckworth Powell, have hereunto
set my hand and seal, this 2nd day of May, in the year of our Lord
One thousand eighteen hundred and sixty.
(L.s.) HENRY BUCKWORTH POWELL.
Witness,
JOHN GOLDEN SHORT, Chemist,
Lyndhurst.