CERTAIN NEW-CONSTRUCTED MACHINERY FOR REGU- LATING THE POWER AND MOTION OF WIND AND OTHER MILLS, AS ALSO THE PROCESS OF GRINDING AND DRESSING THEREIN, AND FOR REGULATING ALL OTHER MACHINERY WHERE THE FIRST MOTION IS UNEQUAL
Year: 1789

page_text: HOOPERS SPECIFICATION..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, STEPHEN
HOOPER, of Margate, in the Isle of Thanet and County of Kent, Gentleman,
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 the
Twenty-ninth day of October, in the thirtieth year of His reign, give and grant
unto me, the said Stephen Hooper, His especial licence, that I, the said
Stephen Hooper, during the term of years therein expressed, should and law-
fully might use, exercise, and vend, within England, Wales, and the Town of
Berwick-upon-Tweed, and also in all His Majesty's Colonies and Plantations
abroad, my Invention of "CERTAIN NEW-CONSTRUCTED MACHINERY FOR REGU-
LATING THE POWER AND MOTION OF WIND AND OTHER MILLS, AS ALSO THE PROCESS
OF GRINDING AND DRESSING THEREIN, AND FOR REGULATING ALL OTHER MACHINERY
WHERE THE FIRST MOTION IS UNEQUAL;" in which said Letters Patent there
is contained a proviso obliging me, the said Stephen Hooper, 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
Stephen Hooper, do hereby declare that my said Invention of Certain new-

page_text: constructed Machinery for Regulating the Power and Motion of Wind and
other Mills, as also the Process of Grinding and Dressing therein, and for
Regulating all other Machinery where the First Motion is Unequal, is
described in the Plan and description thereof hereunto annexed.
In witness whereof, I, the said Stephen Hooper, have hereunto set my
hand and seal, this Twenty-third day of November, One thousand seven
hnndred and eighty-nine.

page_text: Figure JA. The Draw beam of the Mill. B. the arms. C. the Vanes or Sweeps. D. the sails one end of which are fastened to the cross laths EEEE. of the Vane or sweep
the other end to Rollers FFFF. to roll the sails upon when they are wanted, to be reduced or taken in. This is done by means of a rack and pinion at each end of the Rollers as at J.
or by rope strop or Chain as at 2 round each end of the Rollers having as many turns as it takes to roll the sails out to their greatest extent where the other ends of the lines are
made fast. In the centre of each end of the Rollers are small gudgeons which work in centres in two rods 6.G.G.G. extending lengthways on each side of the face of the Vane or sweep
when these rods are drawn towards the centre of the Sails spread and the reverse action rolls the Sails in. These rods are kept in their places by friction rollers b.b.bb see 10 &
put in moting by
H. one of hair is fusterrect the reas G.G. the other ends work one under and the other over pinion I which is fixed at the end of the Draw
beam. The Rods H.H. are put in motion by means of racks working one under and the other over pinion I, as at 3, or by Chains round a Roller extending each way on
the rods as far as they are required to work as at 4. This pinion Is prt into motion by means of one of the Rods K.K. working in and out by the side of the Draw-beam by
a Rack working in pinion T. or by a Chain round a Roller extended on the Roa as far as it requires to work in and out. This Rod His put in motion by Rod Lee 5 working in
the centre of the Draw-beam the outer end of which joins Rods KK. by means of a cross piece as shewn in the figure. at the other end of Rod L is a mortice to fix a Cross bar
in opposite to this mortice is another mortice cul through the Draw beam marked by the black line m of a length sufficient for this cross bar to move in and out as far as the
rods K.K. require to work. The two ends of this cross bar are fixed a rim M. which surrounding the Draw beam is at liberty to work backwards and forwards. This is put
in motion by a ring N. see 6 working in a groove in rim so as to admits of Rim to work round with the Draw-beam and the ring N Still to keep the same position by the assistan
of the two rods n. n. which are fixed for the arms to slide out and ir upon. To this Ring N is fixed by two arms a Rack O. which works in a Pinion Pat one end of the cross shaft,
that the pinion P is fixed upon a sprocket or V wheel of a Diamter suffident tha a man may with an endless repe force Rod 1 out or in so as to take in or set the sails. These sails
will attend themselves when the Mill is at work by a weight connected with the excreme ends of the Rods G.G.G.G. so that when the weight by the velocity of the vanes or sweeps is forced
out so as to overpower a counterweight that is fastened to a rope which works round a spiral wheel R ficced on the cross shaft S the sails roll up in proportion to such velocity
and when the velocity abates the counterweight overpowers the weight on the vanes or sweeps and spreads the Sails.
Fig 2. Represents four sails DDDD extended lengthways on the Vane or Sweep on side of the two Sails fastens to the arms and on one side of the other two Sails fastens to a lath up
and down the middle of the Vane or Sweep the other side of these Sails fasten to tur Rollers EFFE one end of these Rollers work with a Gudgeon in a cross rod Gnear the middle of
the Vane or Sweep. The other ends of the Rollers work with a gudgeon in a centre in a cross rod (say at the outer and inner ends of the Vane or Sweep.) These ends of the Rollers have lines
round them as many turns the reverse way as the Sails roll up and the other end of the line extends and is made fast as far out to the side of the Vane or weep as the Sails extend.
(or they may be worked by Rack and pinion as in Fig.1.) On the face of the cross Rod G there is a rack fastened in which wheel H works. This is put in motion by Wheel I working in rackk
This rack is put in motion by Rod L. in the same manner as in Fig.1. and the Sails regulated on the same principle.
Fig.3. A.A. represent the Stones of a Corn Mill. B. the Quant. C. the nut to drive the Stone.D.D. two ears fastened to the under side of the Nut. E.E. are levers working in centres in the Ears
D.D. and having quaudrants fisced on them with Cogs or teeth to work in the racks FF which are attached to the rim H. at the outer extremity of these levers ar two weights G.G.kept nearer
or further from the centre as required by nuts and screws. These weights fly from the centre in proportion to the velocity of Nut C and work rim.H up and down the Quant. The ring I works in
Rim H. in the same manner as N. Fig. 1. and is fixed by two ears to the rod K which communicates to a cross Rod L which has at each end a quadrant head, at the extremities of which
a line or chain is fastened see 8. the other end of these lines or chains are extended the pposite way and fastened on the Rods K &M. by which means the working of the Rim H gives motion to
the whole. This may also be worked by Rack and Geers see 7 Rod M communicates Lever N. the other end of this lever goes through a poppet 0. and rests on a Boc. Pis the Bridge tree on which
the spinde Q, works at the end of the Bridge tree is another Bolt R. the upper end of which is fastened to the end of lever N near the poppet 0. at the lower end of this Bolt inder the Bridge Tree is a
screw to raise and fall the Bridge tree to fix the stones to the work. Tis a fluted Roller to regulate the feed of the stones by V the hopper see 9 to lead the Grain on the Roller. Ua Cap on top of
the Roller under the hopper. Was a rod from the Cap which communicating with the upright Rod S by the Cross rod X the rests a, a.a move the Cap backwards and forwwards to take it off or give
more feed agreable to the velocity of the Stone. There are several rests on both upright rids to either of which the Cross rod X may be fixed at pleasure to give more or less feed by drawing the Cap V
a greater or less distance The wheel Y is put to work in wheel Z which gives motion to the fluted Roller T. The construction of all these movements tend to regulate the works without other assis:
tance. N.B. The seperate Drawings of several parts of the above described Machinery as marked with the figures 1.2.3 &c. are given upon a larger Scale than inthe figure itself in order to
give a more clear and demon chutive Jonamie