A CERTAIN MACHINE FOR MEASURING A SHIP'S WAY MORE ACCURATELY THAN THE LOGG LINE, OR ANY OTHER MODE HERETOFORE INVENTED, WHICH I CALLED THE WHEEL LOGG OR MARINE PERAMBULATOR
Year: 1776

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
GUERIMAND, of the Parish of Saint Giles, in the County of Middlesex, Watch-
maker, send greeting.
WHEREAS I, the said James Guerimand, did, by my Petition, humbly
represent to His present most Excellent Majesty King George the Third, that
I had for many years, and at a great expence, employed myself in compleating
"A CERTAIN MACHINE FOR MEASURING A SHIP'S WAY MORE ACCURATELY THAN
THE LOGG LINE, OR ANY OTHER MODE HERETOFORE INVENTED, WHICH I CALLED
THE WHEEL LOGG OR MARINE PERAMBULATOR," and that I was the sole Inventer
thereof; I therefore most humbly prayed His said Majesty that He would
be graciously pleased to grant unto me, my executors, administrators,
and assigns, His Royal Letter Patent for the sole use and benefit of my
said Invention, within that part of His said Majesty's Kingdom of Great
Britain called England, His Dominion of Wales, and Town of Berwick-upon-
Tweed, and also in His Colonies and Plantations abroad, for the term of
fourteen years, according to the Statute in that case made and provided; His
said Majesty, being willing to give encouragement to all arts and inventions
which might be for the publick good, was graciously pleased to condescend to

page_text: my request; and therefore, by His Royal Letters Patent under His Great
Seal of Great Britain, bearing date at Westminster, the Ninth day of
September, in the sixteenth year of His reign, of His especial grace, certain
knowlege, and meer motion, for Himself, His heirs and successors, did give
and grant unto me, the said James Guerimand, my executors, administrators,
and assigns, His especial licence, full power, sole privilege and authority, that
I, the said James Guerimand, my executors, administrators, and assigns, and
every of them, by myself and themselves, or by mine or their deputy or
deputies, servants or agents, or such others I, the said James Guerimand, my
executors, administrators, or assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term of years
therein expressed, should and lawfully might make, use, exercise, and vend
my said Invention within that part of His said Majesty's Kingdom of Great
Britain called England, His Dominion of Wales, and Town of Berwick-upon-
Tweed, and also in His Colonies and Plantations abroad, in such manner as
to me, the said James Guerimand, my executors, administrators; and assigns,
or any of us, should in our discretions seem meet; and that I, the said James
Guerimand, my executors, administrators, and assigns, should and lawfully
might have and enjoy the whole profit, benefit, commodity, and advantage
from time to time coming, growing, accrewing, and arising by reason of the said
Invention, for and during the term of years therein mentioned, to have, hold,
exercise, and enjoy the said licence, powers, priviledges, and advantages therein-
before granted or mentioned to be granted unto me, the said James Gueri-
mand, my executors, administrators, and assigns, for and during and unto the full
end and term of fourteen years from the date of the said Letters Patent next
and immediately ensuing, and fully to be complete and ended according to the
Statute in such case and provided; in which said Letters Patent is contained
a proviso that if I, the said James Guerimand, should not particularly describe
and ascertain the nature of my said Invention, and in what manner the same
is to be performed, by an instrument in writing under my hand and seal, and
cause the same to be inrolled in His said Majesty's High Court of Chancery within
four calendar months next and immediately after the date of the said Letters
Patent, that then the said Letters Patent, and all liberties and advantages
whatsoever thereby granted, should utterly cease, determine, and become void,
anything therein-before contained to the contrary thereof in anywise notwith-
standing, as in and by the said Letters Patent (relation being thereunto had,
may more fully and at large appear.
NOW KNOW YE, that I, the said James Guerimand, in compliance with
the said proviso, do hereby describe and ascertain the nature of my said

page_text: avention, and declare that the same is particularly delineated and described
the Plan and description thereof hereunto annexed.
In witness whereof, I, the said James Guerimand, have hereunto set
my hand and seal, this Eighth day of January, in the year of our
Lord One thousand seven hundred and seventy-seven, and in the
seventeenth year of the reign of our Sovereign Lord George the
Third, by the grace of God of Great Britain France, and Ireland
King, Defender of the Faith, and so forth.
ealed and delivered (being first duly
JAMES GUERIMAND. (L.s.)
stampt, the presence of
WILLIAM ALLMAN.
BIGOE HENZELL.
AND BE IT REMEMBRED, that on the Eighth day of January, in the
seventeenth year of the reign of His Majesty King George the Third, the
said James Guerimand came before the said Lord the King in His Chancery,
and acknowledged the Instrument aforesaid, and all and every thing therein
contained and specified, in form above written. And also the Instrument
aforesaid was stamped according to the tenor of the Statute made in the
sixth year of the reign of the late King and Queen William and Mary of
England and so forth
Inrolled the said Eighth day of January, in the seventeenth year of the
reign of His Majesty King George the Third.

page_text: on its axis and its semediameter covered..
C.CC.C. The moveable Vane that will always be
parallel to the ships weak.-
E. The axis of the Water wheel on which a Lanthan
pinion is fixt: which takes into a wheel that is
fixed to the rod. _
F at the other end of the rod Fat G. is a Lanthom
pinion fixed that takes into a wheel that is
fixed to the rod H at the upper end of the Rod
Hat I is a Lanthorn pinion that takes into a
wheel and at the other end of the rod Kat Is is
a Lanthorn pinion that takes into a wheel fixed
at the end of the rod M at the other end of the
- stod Mat N in a Lanthorn pinion that takes into
a wheel fixed to the rod O which is continued
through the frame Z.Z. and communicates its
motion to a set of wheels and hands that point
out the distance the Ship has um.
QQQQQQQQ.Q.Q. are rods that form, triangler
cage fastned to the blocks R.R.R.R. to each of
which are fixed three rowlers that press against the
Blocks as described by S.S.S.S.S.S.S. S. and therein
turns on its axis by the vane C.C.C.C. that moves
as the ship alters its course the block S.S.S.S.S.S.
S.S. has three rods fastned and is a
fixture T.I.
is the outside Tube which is fixed to U.U.W.W.
is the Index which points out the alteration of
the Ships course YY...
NNNN are the six conical rowlers to decrease
the fuction of the inner Cage I one.
·Cage I one of the pedistals
to support the Frame Z.Z. D. Blocks with
roller to fix the Machine to the bottom of the
Ship.