A PROPELLER FOR THE USE OF COMMUNICATING POWER TO MILLS, FORGES, AND SUNDRY OTHER IMPORTANT PURPOSES
Year: 1780

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BACHE, of Birmingham, in the County of Warwick, Chemist, 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 Fourth day of May, in the twentieth year of His reign, did give
and grant unto me, the said William Bache, His especial licence that I,
the said William Bache, during the term of years therein expressed, should
and lawfully might use, exercise, and vend, within Eugland, Wales, and
the Town of Berwick-upon-Tweed, my new Invention of an instrument
called "A PROPELLER FOR THE USE OF COMMUNICATING POWER TO MILLS, FORGES,
AND SUNDRY OTHER IMPORTANT PURPOSES;" in which said Letters Patent there
is contained a proviso obliging me, the said William Bache, under my hand
and seal, to cause a particular description of the nature of the said Invention
to be inrolled in His Majesty's High Court of Chancery within four kalender
months 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
William Bache, do hereby declare that my said new invented instrument,
called a propeller, is formed in manner following (that is to say):-
Either by a straight or bent tube made with metal, wood, stone, or bricks,
with proper cements, and by a pump or otherwise, to be filled with water or any
other dense fluid, the tube having near its base one or more valve or valves to
act alternately for the admission of an ascending fluid, and as an opposing

page_text: power to prevent the descent of that fluid, under other circumstances, near
the upper end of the tube must also be formed one or more valve or valves for
the discharge of the fluid, together with such other tubes and receivers as may
be necessary to answer such purposes as may be required of it, at that or any
inferior height. The head of the tube must be made air-tight by a cover,
through which must be made to pass either a large moveable screw or rod, or
other compressive power, having a connection in the inside of the tube with
a broad body, which I shall call a forcer; its extent must be such as nearly to
fill up the area of the tube, that when the screw or rod is made to descend
either by pressure, the spring of an elastick fluid, or mechanic power, the
forcer may so press upon the surface of the fluid as to cause a part thereof
to open the valve or valves last mentioned, and escape; the powers expressed
to be jointly or seperately applied, as. may best suit for the situation and use of
the machine; and, where required, must be subjoined the whole or part of the
following apparatus pertaining to the said instrument or machine, (viz.) a
reservoir for the reception of the propelled fluid, and an apperture, pipe or pipes,
for the descent of the fluid upon one or more wheel or wheels, for the purpose
of effecting a rotatory motion, or to answer any other intent or end that may
be thought useful or agreeable; and the fluid may be again received into an
inferior reservoir to the former prepared for it, and to be again employed to
increase the powers of the same or other wheels by its impetus, and upon the
wheel or shaft of the wheel or wheels may be fixed a crown or other wheel or
wheeles, drum or drums, trundle or trundles, coggs or spokes, for the purpose of
turning other wheelwork, or depressing or raising a lever, or otherways to
communicate to the large screw or rod with the forcer annexed, or any other
purposes that may be deemed usefull; and it is so contrived that the fluid
before mentioned, after having been applied to the wheel or wheels as
described, may have a proper descent to the base of the great tube to be
repeatedly forced up into it again by the influence of the atmosphere or any
other compressive power at such periods as the forcer connected with the
larger screw or rod is raised towards the cover of the great tube, that upon
the repeated descent of the forcer the fluid may be again driven out of the
tube at the superior valve or valves, as before specified, and act again by its
weight and velocity upon the inferior parts of the machine.
The principle of this machine may be applied in different forms to all the
following purposes: raising water for culinary uses in cities, towns, and
villages, for washing of streets and roads, floating of pasture grounds, draining
of lands, communicating powers to all kinds of mills and forges; to raising of
water from the holds of ships, from mines, rivers, springs, pools, ponds, and for

page_text: he improvement of pleasure grounds in contributing to the formation of
vulets, cascades, and jetteans, and various other purposes.
In witness whereof, I, the said William Bache, have hereunto set my
hand and seal, this Twenty-eighth day of August, in the year of our
Lord One thousand seven hundred and eighty.
0
AND BE IT REMEMBRED, that on the First day of September, in the
year abovesaid, the aforesaid William Bache 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
Statute made in the sixth year of the reign of William and Mary of England,
and so forth.
Inrolled the First day of Sontember in the wear above mentioned