PROPELLING LIGHT CARRIAGES OVER LAND, OR SMALL VESSELS THROUGH WATER
Year: 1821

page_text: TO ALL TO WHOM. THESE PRESENTS SHALL COME, I, FREDERICK
MIGHELLS VAN HEYTHUYSEN, of Chancery. Lane, in the Parish of Saint
Andrew, Holborn, and County of Middlesex, send greeting.
WHEREAS His most Excellent Majesty King George the Fourth, by His
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-third day of July, in the second year of His
reign,,did, for Himself... His heirs and successors, give and grant unto me,
the said Frederick Mighells Van Heythuysen, His especial licence, that I, the
said Frederick Mighells Van Heythuyson, my executors, administrators, and
assigns, or such others as I, the said Frederick Mighells Van Heythuysen,
my executors, administrators, and assigns, should at any time agree with, and
no others, should, from. time. to time and at all times during the term, of
years therein expressed, should and lawfully might make, use, exercise and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, and
also within all His Majesty's Colonies and Plantations abroad, my Invention
of "PROPELLING LIGHT CARRIAGES OVER LAND, OR SMALL VESSELS THROUGH WATER;"
in which said Letters Patent there is contained a proviso, obliging me, the
said Frederick Mighells Van Heythuysen, by an instrument in writing under
my hand and seal, to describe and ascertain the nature of my said Invention,
and in what manner the same is to be performed, and to cause the same to be
enrolled in His Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Frederick Mighells Van Heythuysen, do hereby declare that the nature of
my said Invention, and the manner in which the same is to be performed,
is described and ascertained in the following explanation thereof, that is
to say:
My Invention consists in the treading round the axletree or spindle into
which is fixed the road wheels of a carriage or paddles of a boat, barge, or
other small vessel. When applied to land carriages, four arms or more are
fixed crossways upon the axletree, and so placed that the heels of the right and
left feet may alternately tread them down, and consequently turn the axletree
and impel the road wheels forward, by which means the weight of the body
becomes a propelling rotary power. When applied to a boat, barge, or other
small vessel, I in the like manner fix four arms, or perhaps a greater number,
to the spindle or axletree, for the purpose of treading it round, as above; or, if
greater expedition is required, the treadles may be fixed on the axletree or
spindle in the form of a triangle, so that it may be trod round by three steps;
the paddles on the ends of the spindle or axletree which project over the side
of the vessell are six in number, but may be more or less in number, as occasion.
may require.
In witness whereof, I, the said Frederick Mighells Van Heythuysen,
have hereunto set my hand and seal, this Twenty-second day of
January, in the year of our Lord One thousand eight hundred and
twenty-two