A REGULATOR ON A NEW PRINCIPLE FOR WIND AND OTHER MILLS, FOR THE BETTER AND MORE REGULAR FURLING AND UNFURLING THE SAILS ON WINDMILLS WITHOUT THE CONSTANT ATTEND- ANCE OF A MAN, AND FOR GRINDING CORN AND OTHER GRAIN, AND DRESSING OF FLOUR AND MEAL, SUPERIOR IN QUALITY TO THE PRESENT PRACTICE, AND FOR REGU- LATING ALL KIND OF MACHINERY WHERE THE FIRST POWER IS UNEQUAL
Year: 1787

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
MEAD, of the Town and Port of Sandwich, in the County of Kent, Carpenter,
send greeting.
P
WHEREAS His most Excellent Majesty. King George the Third did, by
His Letters Patent under the Great Seal of Great Britain, bearing date
the Fifteenth day of November, in the twenty-eighth year of His reign,
give and grant unto me, the said Thomas Mead, His special licence that
I, the said Thomas Mead, during the term of fourteen years therein expressed,
should and lawfully might use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "A REGULATOR ON
A NEW PRINCIPLE FOR WIND AND OTHER MILLS, FOR THE BETTER AND MORE REGULAR
FURLING AND UNFURLING THE SAILS ON WINDMILLS WITHOUT THE CONSTANT ATTEND-
ANCE OF A MAN, AND FOR GRINDING CORN AND OTHER GRAIN, AND DRESSING OF
FLOUR AND MEAL, SUPERIOR IN QUALITY TO THE PRESENT PRACTICE, AND FOR REGU-
LATING ALL KIND OF MACHINERY WHERE THE FIRST POWER IS UNEQUAL." Those
parts marked with the letters A, B, C, D, &c., are usually contained in wind-
mills, and those marked with the figures relate to the improvements by the
regulator. A, a wind shaft; B, a wind wheel; C, the sail in the state of
being furled up; D, the nut with which the stones are connected; E, the
upright bar or quant; F, the mill stone; G, the bridge with which the mill-
stones are raised and lowered; H, the bin through which the corn is con-
veyed to the mill stone; I, a bolting mill through which the flour is dressed.
Explanation of those parts for the regulating of the stones.-Figure 1, a
bar on which is screwed the thimble or ferule Figure 2, to the side of which

page_text: another ferule works with the arm of the bar Figure 8, and likewise a
globe Figure 3. Figure 4 centers to the arms of the bar which move in the
socketts Figures 5. Figures 6, a screw which is inserted in the outer socket
to keep tight the arms of the bar, and prevent its shaking when in action.
Figure 7, a plate to which is fixed the bar sockets, &c. Figure 8, a bar
which works in the thimble annexed to Figure 2, and in its center has a
socket which works on the top of the hollow socket or collar Figure 9; which
socket is to move freely on the quant, and carries another socket Figure 10.
To Figure 10 are fixed two arms Figure 11, in the lower end of each of
which are inserted two small pullies, between which pass the arms of the
lever Figure 12. To one end of Figure 12 is annexed a screws Figure 13,
which carries the bow Figure 14, and the arms Figure 15, which work in
the bow Figure 14, and support the chain that raises or lowers the acting
mill stone. Figure 16 is another bow which supports the lever Figure 12
by its arms Figure 17, in which it traverses freely like a common balance,
and to which is fixed a chain that supports the centers on which the lever
turns. To the other end of No. 12 is fixed two arms and a cross piece
Figure 18, which pass between the two pullies inserted in Figure 11; on
Figure 12 is a weight moveable at pleasure. Figure 19, a geometrical plan
of the under side of the nut D, with the improvements fixed to it.
Figure 20,
a perspective view of the mill stone, quant, and nut, with the improvements
fixed to it when in action; the operation of which is as follows: When the
mill is put in motion, the globes Figure 3 acquire a centrifugal force, and as
the velocity increases, fly off from the center, raising the lever or bar
Figure 8, and also the sockets or collars 9 and 10, and the arms 11, and with
them the arms and the end of the lever Figure 12, and cross piece Figure 18,
thereby lowering the acting mill stone, and as the centrifugal force decreases
the globes Figure 3 approach nearer to the center, and thereby lowers the
bar Figure 8, collars, &c., and raises the mill stone, which is thus regulated
according to the velocity of the mill.
Explanation of the operation in feeding the mill stones.-Figure 21, a
fluted collar fixed to the lower end of the quant E, and turns in an aperture
at the lower part of the bin II, in which is fixed a tongue or slide, to which
tongue or slide a cord is fastened that leads to the lever Figure 12, acting
according to the velocity in the capacity of supplying the stones with a greater
or less quantity of corn, &c., as may be required.
Explanation of the operation on the bolting mill for dressing of flour
&c. Figure 22, two conical rollers, round which passes the band Figure 23.
Figure 24, two pullies between which the band passes. Figure 25, a grooved

page_text: wheel, round which passes a cord that puts the whole in motion. The operation
is as follows: As the mill increases in velocity, the two pullies are drawn
by a line fixed to the lever Figure 12, farther from the end of the bolting mill,
and with them draw the band towards the smaller end of the upper cone
and the larger end of the lower cone; and, as the velocity decreases the
pullies are moved back again by a spring, and force the band towards the
larger end of the upper cone and the smaller end of the lower cone, thereby
producing a regular and uniform motion of the bolting mill.
Explanation of the operation on the sails.-Figure 26, a wheel made fast
to the end of the shaft A, which drives a small wheel Figure 27 fixed to an
upright bar Figure 28, which carries a circular piece or top Figure 29, to
which are annexed the bars, globes, and arms Figure 30. Round the bar is
a collar Figure 31, on the outside of which works another collar Figure 32.
Figure 33, a collar on the wind shaft, on the outside of which is another
collar Figure 34, in which is fixed a loop or pin Figure 35, through which
passes a bar Figure 36 fixed to the side of the mill, which prevents the
collar from turning on the shaft when in motion. Figure 37 are springs
fixed to the side of the wind shaft which press against the end of the
inside collar Figure 33. Figure 38, cords leading from the unfurling and
furling pullies Figure 39 round the pulley Figure 40 fixed to the end of the
shaft to the collar Figure 33, the inside of which has a groove throngh which
one of the cords passes round the pulley Figure 41, and is returned and
fastened to the end of the collar Figure 33. Figure 42 are cords passing
round the pullies Figure 39, and round the roller to which the cloth is fixed
Figure 43. Figure 44, cords passing round the pullies Figure 45, and
fastened to the collars Figures 32 and 34. Figure 46 are cords fastened to the
top of the inside collar Figure 31, and to the lower end of the bar on which
the globe is fixed Figure 30. The operation is as follows:-As the velocity
of the mill increases, the globes Figure 50 fly off from the center of the bar
Figure 28, and draw up the collars Figures 31 and 32, thereby drawing the
collars Figures 33 and 34 on the wind shaft nearer to the wheel Figure 26,
and also drawing one end of the cord Figure 38 with them which turns the
pullies Figure 39, also the roller Figure 43, by which means the cloth is
furled up in proportion to the velocity, and as the velocity decreases the
globes approach nearer to the cenetr of the bar Figure 28, lowering the
collars 31 and 32, and gives the springs Figure 37 power to draw the collars
33 and 34 farther from the wheel Figure 26, thereby drawing the other
end of the cord Figure 38, which passes round the pully Figure 41 and turns
the furling and unfurling pullies Figure 39 in an opposite direction, unfurling
the cloth on the mill sails.

page_text: Explanation of the general regulator for producing a uniform motion
where the first power is unequal.-Figure 47, a square bar or shaft that
passes down in another square bar or shaft Figure 48, to which is fixed a cone
with spiral flutings, in which work the teeth of a skew wheel Figure 49.
Figure 50, a nut or wheel fixed to the top of the small bar Figure 47, by
which the cone is put in motion. Figure 51, globes, bars, and arms fixed
to the under side of the nut Figure 50. Figure 52, cords or chains leading
from the upper end of the cone to the end of the, bars on which the globes
are fixed. Figure 53, a lever on the end of which the lower end. of bar
Figure 48 works, which lever is suspended by a joint or hinge Figure 54.
The operation is as follows: When the cone is put in motion the globes
acquire a centrifugal force flying off from the center, and raise the cone with
the lever Figure 53, thereby causing the skew wheel to work in a lesser part of
the flutings of the cone, and as the velocity decreases the globes approach nearer
to the center and lower the cone and lever, thereby causing the skew wheel
to work in a greater part of the flutings of the cone, by which means the
skew wheel continues a regular and uniform motion, to which any machinery
may be connected at pleasure; in which said Letters Patent there is con-
tained a proviso, obliging me, the said Thomas Mead, under my hand and seal,
to cause a particular description of the nature of my said Invention and how
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 said proviso, I, the said
Thomas Mead, do hereby declare that my said Invention is described in and
by the annexed plan, and in manner before mentioned.
In witness whereof, I, the said Thomas Mead, have hereunto set my
hand and seal, this Fourteenth day of December, in the year of our
Lord One thousand seven hundred and eighty-seven.
Signed, sealed, and delivered by the within-
named Thomas Mead, this Fourteenth
day of December 1787, in the presence
THOS MEAD. (L.S.)
i

page_text: AND BE IT REMEMBERED, that on the Fourteenth day of December,
in the year of our Lord 1787, the aforesaid Thomas Mead came before our
said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, 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 Statutes made for that purpose.
. Inrolled the Fourteenth day of December, in the year of our Lord One
thousand seven hundred and eighty-seven.