METHOD OF PROCURING A MECHANICAL POWER,
Year: 1822

page_text: Ity of Bumburg, I mer, send greening.
WHEREAS His present most Excellent Majesty King George the Fourth
did, by His Royal Letters Patent under the Great Seal of the United Kingdom
of Great Britain and Ireland, bearing date at Westminster, the Second day of
March, in the third year of His reign, give and grant unto me, the said John
Ruthven, my executors, administrators, and assigns, His especial licence, full
power, sole privilege & authority, that I, the said John Ruthven, my executors,
administrators, and assigns, during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend my "NEW METHOD OF PROCURING
A MECHANICAL POWER," within England, Wales, and the Town of Berwick-
upon-Tweed, in such manner as to me, the said John Ruthven, my executors,
administrators, and assigns, should in our discretion seem meet; in which said
Letters Patent is contained a proviso that if I, the said John Ruthven, 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 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, as in and by the said recited Letters Patent,
relation being thereunto had, may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Ruthven, do hereby declare that the nature of my said Invention, and

page_text: in what manner the same is to be performed, are particularly described and
ascertained in manner following (that is to say):
The said mechanical power is produced from the revolving or moving of
two bodies, the one circular or cylindrical, the other with one or more curve or
curves on the edge or periphery, but revolving or moving on or with an axle.
By placing them in a frame or frames, and turning round the circular body
with a winch handle or handles, or with a spur wheel and pinion, or any other
mechanical power, while the edge or periphery of the curved body is in contact
with the circular body, and the axle of the curved body in a parallel line
with the circular body, the body with the curved periphery or edge will be
made to revolve or move, making the frame in which it revolves or moves
recede in a direct line with the centre of the circular body, and with a force
proportioned to the diameter of the circular body and the eccentricity or curves
of the other body. The periphery, of both bodies may also be toothed or
fluted. The whole may be made of iron, steel, brass, or any suitable material
or materials. .
I also declare that my said Invention may be applied in various forms and
for various purposes. The annexed Drawings give a representation of one of
the forms, and an application for pressure, in order that my Specification may
the better be understood, but not confining myself to those or any other parti-
cular form of the curved body. Figs. 1 and 2 are two of the curved bodies,
Fig. 2 resting on the circular one. Fig. 3 is a section of the frames, with
curved body and circular body. Fig. 4, winch handle, &c.
frame or a press, with a bale under pressure.
Fig. 5 is the
In witness whereof, I, the said John Ruthven, have hereunto set my
hand and seal, this Twenty-fifth day of June, in the year of our Lord
One thousand eight hundred and twenty-two.
Signed, sealed, and delivered by the
within-named John Ruthven, being
- first duly stamped, in the presence of
JOHN ANGUS,
JOHN RUTHVEN. (L.B.)
Of the City of Edinburgh,
Writer

page_text: John Angus, of the City of Edinburgh, Writer, maketh oath and saith,
that he was present, and did see John Ruthven, of the City of Edinburgh,
Printer, sign, seal, and, as his act and deed, deliver and acknowledge, a certain
deed poll or instrument in writing, bearing date the Twenty-fifth day of June
instant, purporting to be a Specification of a New Method of Procuring a
Mechanical Power; and this deponent further maketh oath and saith, that the
name "John Ruthven," set at the foot of the said deed poll as the party
executing the same, is of the proper handwriting of the said John Ruthven;
and that the names or characters of "John Angus" and "Harry Inglis "
indorsed on the said deed poll as witnesses to the signing, sealing, and delivery
thereof, are of the respective handswriting of this deponent and Harry Inglis,
of the City of Edinburgh, Writer.
AND BE IT REMEMBERED, that, on the affidavit of John Angus, the
Instrument aforesaid was inrolled, word for word, as above written. And also
the Instrument aforesaid was stamped according to the tenor of the Statute
made in the fifty-fifth year of the reign of His late Majesty King George
the Third.
Inrolled the Twenty-eighth day of June, One thousand eight hundred
and twenty-two.