AN ARTIFICIAL FROG, WHICH BEING APPLIED TO THE NATURAL FROG OF HORSE'S. FEET, WILL EFFECTUALLY PREVENT CONTRACTED HOOPS, THRUSHES, AND CANKER
Year: 1800

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
COLEMAN, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the First day of February, in the fortieth year of His reign,
give and grant unto me, the said Edward Coleman, His especial licence
that I, the said Edward Coleman, during the term of years therein
mentioned, should and lawfully might use, exercise, and vend, within
England, Wales, and the Town of Berwick-upon-Tweed, my Invention of
"AN ARTIFICIAL FROG, WHICH BEING APPLIED TO THE NATURAL FROG OF HORSE'S.
FEET, WILL EFFECTUALLY PREVENT CONTRACTED HOOPS, THRUSHES, AND CANKER;"
in which said Letters Patent there is contained a proviso obliging me, the said
Edward Coleman, by an instrument in writing under my hand and seal, to
cause a particular description of the nature of my said Invention, and in what
'manner the same is to be performed, to be inrolled in His Majesty's High
Court of Chancery within one calendar month after the date of the said
recited Letters Patent, as in and by the same, relation being thereunto had,
may more fully and at large appear.
NOW KNOW YE, that in compliance with the proviso, I, the said Edward
Coleman, do hereby declare that my said Invention is described in manner
following, that is to say :-
As all cases of contracted hoofs, thrushes, and canker in horses arise from
the want of due pressure to the frog, and as the frogs of horses from ordinary

page_text: shoeing are very generally raised much above the heels of the shoe so as to
receive no pressure in the stable, it was deemed very important to apply an
artificial frog adapted to the hoofs of all horses shod even with the most
common shoes, to cover and give any degree of pressure to the natural frog
only. This frog may be made of iron, horn, wood, leather, and various other
substances. 'In most cases I prefer iron. In order to fix and remove the
artificial frog with great facility, the toe of the iron frog extends under the toe
of the shoe; this prevents the artificial frog from removing forwards; and to
prevent the backward or lateral motion, a steel spring or other elastic sub-
stance is fitted into an irregular groove in the iron frog, and fixed under the
heels of the shoe. An artificial frog thus
An artificial frog thus applied is generally retained
sufficiently steady; but to fix it more firm in its situation a strap is passed
through a hole in the heels of the iron frog and buckled round the hoof. Its
chief use is where the frog is raised above the shoe, when the influence of the
heat of the stable operates powerfully to induce contraction, that standing on
the artificial frog is more particularly wanted to give such a degree of pressure
as to preserve the natural frog in health, and consequently free from con-
traction, thrushes and canker.
In witness whereof, I, the said Edward Coleman, have hereunto set my
hand and seal, the Twenty-seventh day of February, in the year of
our Lord One thousand eight hundred.