NEW-INVENTED METHOD OF COMBINING WHEELS FOR GAINING MECHANICAL POWER
Year: 1810

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
DOUGHTY, of Birmingham, in the County of Warwick, Engineer, do send
greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twelfth day of February, in the fiftieth year of His reign, did give
and grant unto me, the said William Doughty, my exors, admors, and assigns,
His especial licence, full power, sole privilege and authority, that I, the said
William Doughty, my exors, adñors, and assigns, or any other persons whom
I may authorize, 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, my "NEW-INVENTED METHOD OF COMBINING WHEELS
FOR GAINING MECHANICAL POWER;" in which Letters Patent there is con-
tained a proviso obliging me, the said William Doughty, under my hand
and seal, to cause a particular description of the nature of my said Inven-
tion, and in what manner the same is to be performed, to be inrolled 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, relation being thereunto had, may more and at large
appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Doughty, do hereby declare that my said new Invention or method
of combining wheels consists in the following description:-
Fig. 1st, A is an immoveable or fixed wheel. B is the wheel of action or
first mover. C and D are revolving wheels working in B and A, on loose
centers or studs, which are screw'd into the arm F, section 2nd, which arm is
pinn'd or wedged on the shaft or axle E. The wheel B as an arm or crank
pinn d on at 1, sect. 3, by which it receives its impulse, and works loose on the
axle at G, and when in motion forces the wheels C and D round, pressing D
downwards and C upwards; by this means removes or reduces the friction
at E. By this proportion of the diameters A, B, C, & D, the power obtained
is four to one; the wheel B going four revolutions to the axis E one;
according to the power required must be the diameters of the wheels;
that is to say, to obtain the power of seven, the wheel B must be to A
as six to one, and the wheels C and D in proportion to the space between A
and B.
Fig. 2 is for gaining velocity. A is an immoveable or fix'd wheel with the
teeth inwards. B is a wheel pinn'd or wedged on the axle E. Sect" fourth,
C and D, are wheels working loose on centers screwed into the arm F,
sect the fifth, and are the first movers in this motion; D pressing down-
wards, and C upwards, receiving their velocity from A, causing the wheel B,
that is fix'd on the shaft or axle E, to make four revolutions for the arm or
crank one, this arm working loose on the axle E at G. These motions or
methods of working wheels enables you to obtain on its own axis any power
or velocity required in proportioning your wheels accordingly, and is applicable
to all engines, woollen, cotton, flax, hemp, threshing, and other machinery
requiring circular motion, as also to mills, lathes, grindstones, windlasses,
cranes, &c., and, by increasing the number of the wheels C and D in pro-
portion to the strands, it is applicable for twine, rope and cable machines
and other useful purposes. By this method the friction or machinery is
considerably reduced, is rendered more portable and durable, less liable to
accidents, and less expence.
In witness whereof, I, the said William Doughty, have hereunto set my
band and seal, this Ninth day of August, One thousand eight hundred
and ban

page_text: AND BE IT REMEMBERED, that on the Ninth day of August, in the
year of our Lord 1810, the aforesaid William Doughty came before our said
Lord the King in His Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was stampt according to the
tenor of the Statute made for that purpose.
Inrolled the Tenth day of August, in the year of our Lord One thousand
eight hundred and ten.