A CERTAIN ENGINE OR MACHINE FOR SAVING EXPENCE IN SINKING SHAFTS ON COAL AND OTHER MINES, AND FOR LESSENING THE RISK OF LOSS OF COAL, AND DANGER ATTENDING THE FALLING THE SAME FROM THE TOP OF SUCH SHAFTS
Year: 1791

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
BANKS, of Dawley, in the County of Salop, Engineer, do send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Royal Letters Patent under the Great Seal of Great Britain, bearing
date at Westminster, the Thirty-first day of October, in the thirty-second year
of His reign, give and grant unto me, the said Richard Banks, His especial
licence, full power, sole priviledge and authority, that I, the said Richard
Banks, 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 Invention of "A CERTAIN ENGINE OR MACHINE FOR
SAVING EXPENCE IN SINKING SHAFTS ON COAL AND OTHER MINES, AND FOR LESSENING
THE RISK OF LOSS OF COAL, AND DANGER ATTENDING THE FALLING THE SAME FROM
THE TOP OF SUCH SHAFTS;" in which said Letters Patent there is contained a
provisoe, obliging me, the said Richard Banks, by an instrument in writing
under my hand and seal, to particularly describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, and
cause the same to be inrolled in His Majesty's High Court of Chancery within
one calendar month next and immediately after the date of the said Letters
Patent, as in and by the said Letters Patent, reference being thereunto had,
may more fully and at large appear.
NOW KNOW YE, that in compliance with the said provisoe, I, the said
Richard Banks, do hereby declare, that the nature of my said Invention, and

page_text: the manner in which the same is to be performed, is particularly described
and ascertained, and I do hereby describe and ascertain the same as follows
(that is to say) :-
My said new Invention is and consists of the engine or inachine repre-
sented and described in and by the above contained Drawings, and the saine
engine or machine is to be constructed, made, and put together, and consists
of the several parts particularly specified in the same Drawings, and in the
axplanation of the same subjoined thereto and referring to such Drawings.
In witness whereof, J, the said Richard Banks, havo hereunto set my
hand and seal, the Twenty-ninth day of November, in the thirty-second
year of the reign of our Sovereign Lord George the Third, by the
grace of God of Great Britain, France, and Ireland King, Defender of
the Faith, and so forth, and in the year of our Lord Ono thousand
seven hundred and ninety-one.
Signed, sealed, and delivered, by the said
Richard Banks (being first duly
stampt) in the presence of
RICHARD BANKS. (L.B.)
Inrolled, the said Twenty-ninth day of November, in the year above.
written.

page_text: B. A Sell tenanted or fix'd in the uprights of the frame C.C.
D.D. two tooth'd planes of
iron
or
any
in the
a shonge
other metal on which roll the tooth'd wheels E.E. which wheels or
rosters support the moveable frame F. the lower sill of which turns by a pivot the pulley frames G. G.
containing each a pulley H.H. over which the ropes II. pass, If being crossed in their directions to the whene
of the Gin Whim or Barrel on which such ropes are usually worked as each draws
same diagonal line from across the center of the pit their Forces if equal have a tendency to keep
the pulley frame in the center of over the center of the shaft but if either rope is acted on by
force than the other it has a tendency to & does draw the pulley frame to that side of the pit to
which it points when viewed in the line of direction as seen locking to the Gir When or Burrit
In the above Drawings Figure 1th represents the fixed Frame of the Engine or Machine and Figure
the 2nd the moveable frame and Figure the 3rd the Engine or Machine complete. In Figure 2nd K.
K. K. K. represent rack work between which and correspondent rack work LLL. FL. in Figure 1°
fixed
the beams O. & O. of same Figure are 4 Houzontal toothed wheels, vide M & M Figure 4.
and M.M.M.M. in Figure 1.) which horizontal wheels and the two vertical toothed wheels E. & E. [vide
Figures 2 & 3) the moveable frame works backwards and forwards. In Figure 1 the beams 080 are
reversed in order to shew the rack work I. L.L. & L. which corresponds with the rack work
KKK J. K. in Figure 2nd but note the rack work is not essential to the motion of the moveable
frame as the wheels may be made plain though the rack work is preferable RS.
vions connected with the tops of the pulley frames and with the Gin Whim or Barrell and
which keep the pulleys in the due direction of the ropes and turn with them.
in
are two
long