A METHOD OF APPLYING MANUEL POWERS TO THE CRANE, PILE DRIVER, AND OTHER MACHINERY
Year: 1812

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
ROGERS, of the City of Dublin, Esq', send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Nineteenth day of
December, in the fifty-third year of His reign, give and grant unto me, the
said Thomas Rogers, my exors, adiñiors, and assigns, His especial licence, full
power, sole privilege and authority, that I, the said Thomas Rogers, my
exors, adiñiors, and assigns, should and lawfully might, during the term of years
therein mentioned, make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "A METHOD OF
APPLYING MANUEL POWERS TO THE CRANE, PILE DRIVER, AND OTHER MACHINERY;"
in which said Letters Patent there is contained a proviso that if I, the said
Thomas Rogers, shall not particularly describe and ascertain the nature of my
said Invention, and in what manner the same is to be performed, by an instru-
ment in writing under my hand and seal, and cause the same to be inrolled in
His Majesty's High Court of Chancery within six 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, shall
utterly cease, determine, and become void, as in and by the same (relation
being thereunto had) will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Thomas Rogers, do hereby declare that the nature of my said Invention, and the
manner in which the same is to be performed, are particularly described and

page_text: ascertained in and by the Drawings hereunto annexed, and the following
description thereof, that is to say :-
Having a wheel prepared, of the form and dimensions of that described, to
the scale in the said Drawing, or otherwise, I cause a man or men to act by
stepping on the perephery of the same, on or about the plane of the axis, who
by his or their gravity or wheight, and by constantly stepping on the rungs or
steps described in the said Drawing, or otherwise made or atatched, will keep
the same in motion, by which a greater weight will be raised or resistance
overcome than by one or the same number of men in the common way. But
where the weight or other resistance is greater than his or their gravity is able
to raise or overcome, the strength of the man or men can be employed, in
addition to his or their weight, by the man or men being atatched to the stage
or floor, as the said Drawing shews, or otherwise.
The said Invention of applying a man or men to the wheel of a machine
on the perephery thereof, on or near the plane of the axis, and using his or
their gravity and strength on his or their gravity alone, as described in the said
Drawing, or otherwise, being all that I claim as my Invention, the Drawing
of the machine hereunto annexed has nothing to do with the said Invention
more than to shew in what manner, the man or men can best be applied.
The wheel may, therefore, be made to any dimensions or form, but with steps
or rungs for the man or men to step upon, and must be made sufficiently
broad to admit of more than one man where the weight or resistance
require it.
In witness whereof, I, the said Thomas Rogers, have hereunto set my
hand and seal, this
day of June, in the year of our Lord One

page_text: DESCRIPTION.
This representation is a Wheel of 6 feet diameter, which is
the most convenient for general use. The Wheels may be to
a greater dimensions, and made stationary or otherwise.
Wheel of 2 Rims, with steps between, at the distance of
about 8 Inches asunder or otherwise.
Frame of Wood or Metal.
Stage for the Man, to be placed about 4Inches below the
horizon of the axis, where the power on the Wheel is greatest.
Lever to throw off the Pall, for freeing the Machine, to lower
the weight. To act by placing the Foot on the point D.
Brake to resist the velocity of the wheel, in lowering the weight
by pressing against the rim of the Wheel. It is joined to the
lever Gunder the stage, by pulling the lever at H the Brake
is pressed against the rim of the wheel.
Strops like those used by Sedan Chairmen to be hooked at pleas