IMPROVED MEANS OF AND APPARATUS FOR PREVENTING OSCILLATION AND VIBRATION OF THE CARD IN IRON SHIPS AND OTHER SHIPS' COMPASSES BY MEANS OF FRICTION
Year: 1866

page_text: LETTERS PATENT to William Renney, of 69, Lombard Street, in the
City of London, Master Mariner, for the Invention of "IMPROVED
MEANS OF AND APPARATUS FOR PREVENTING OSCILLATION AND VIBRATION OF
THE CARD IN IRON SHIPS AND OTHER SHIPS' COMPASSES BY MEANS OF
FRICTION."
Sealed the 1st May 1866, and dated the 5th February 1866.
PROVISIONAL SPECIFICATION left by the said William Renney at
the Office of the Commissioners of Patents, with his Petition, on
the 5th February 1866.
I, WILLIAM RENNEY, of 69, Lombard Street, in the City of London;
Master Mariner, do hereby declare the nature of the said Invention for
"IMPROVED MEANS OF AND APPARATUS FOR PREVENTING OSCILLATION AND VIBRATION
OF THE CARD IN IRON SHIPS AND OTHER SHIPS' COMPASSES BY MEANS OF FRICTION,"
to be as follows:-
Firstly, in the construction and manufacture of a bell cup or cup of any
other form working freely on a pivot (H) (the section whereof is similar to'
that shewn in the Drawing, Fig. 1, G, G,) with a bridge (B) attached to
the compass card; (A, A,) the card pivot (D) working in a socket formed
in a perpendicular standard Fig. 1 (F) in the centre of the cup above
mentioned.
Secondly, in the construction of two or more fans (C, C,) attached to
the said bridge, and so arranged with adjustment screws (E, E,) as to be
raised or lowered at discretion; the said fans to be wholly or partially
immersed in oil, spirits, or any other liquid placed in the cup aforesaid; the
resistance or friction caused by the fans working in the liquid preventing

page_text: the oscillation of the compass card occasioned by the motion of the vessel,
which oscillation in the ordinary compass very seriously affects correct
steering, and is frequently the cause of deviation in the ship's course,
involving risk of life and property.
Having now described the nature of my Invention and the manner of
its application, I would have it distinctly understood that I do not confine
myself to any detail in the carrying out of my Invention; but what I claim
is to be the sole Inventor of the application of fans working in liquid in a
bell cup or cup of other form, which Invention completely obviates the
oscillation usual in the ordinary compass card, and also of the bell working
on a pivot with or without the cup.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Renney in the Great Seal Patent Office on the
31st. July 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
RENNEY, of 69, Lombard Street, in the City of London, Master Mariner,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of February, in the year
of our Lord One thousand eight hundred and sixty-six, in the twenty-
ninth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Renney, Her special licence that
I, the said William Renney, my executors, administrators, and assigns, or
such others.as I, the said William Renney, my executors, administrators,
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 "IMPROVED MEANS OF AND APPARATUS FOR PREVENTING
OSCILLATION AND VIBRATION OF THE CARD IN IRON SHIPS AND OTHER SHIPS'
COMPASSES BY MEANS OF FRICTION," upon the condition (amongst others) that
1, the said William Renney, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, 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.

page_text: NOW KNOW YE, that I, the said William Renney, 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 :-
My Invention consists, firstly, in the construction and manufacture of a
bell cup or receptacle of any other form (F, F,) for liquid or fluid, to work
freely on a pivot (G) (as shewn in the Drawing Fig. 1) with a bridge
(Fig. 1, A, A,) attached to the compass card (B, B,) the card pivot (C)
working in a socket (D) formed in a perpendicular standard (E) in the
centre of the cup or receptacle above mentioned.
Secondly, in the construction of one, two, or more fans (H, H,) attached
to the said bridge, and so arranged with adjustment screws (J, J,) as to be
raised or lowered at discretion; the said fans to be wholly or partially
immersed in oil, spirits, or any other liquid or fluid (K, K,) placed in the
cup aforesaid; the resistance or friction caused by the fan or fans working
in the liquid or fluid preventing the oscillation of the compass card
occasioned by the motion of the vessel, which oscillation in the ordinary
compass very seriously affects correct steering, and is frequently the cause
of deviation in the ship's course, involving risk of life and property.
Having now described the nature of my Invention and the manner of
its application, I would have it distinctly understood that I do not confine
myself to any detail in the carrying out of my Invention; but what I claim
is to be the sole Inventor of the application of one, two, or more fans
working in liquid or fluid in a bell cup or receptacle of any other form,
the resistance or friction thereby caused obviating the oscillation and
vibration usual in the ordinary compass card.
In witness whereof, I, the said William Renney, have hereunto set
my hand & seal, this Twenty-eighth day of July, in year of our
Lord One thousand night hundrad & sixty i
Signed, sealed, and delivered this Twenty-
eighth day of July, in the year of our
Lord One thousand eight hundred &
W. RENNEY. (L.S.)
Signed, sealed, and delivered this Twenty-
eighth day of July, in the year of our
Lord One thousand eight hundred &
staty sia, in the presence of
G. E. WHITE,
W. RENNEY. (L.S.)
69, Lombard Street.
staty-six, in the presence
G. E. WHITE,
69, Lombard Street.