A NEW PUMP OR PUMP WORK
Year: 1798

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
DEVERELL, of Widcomb, in the County of Somerset, Millwright, send
greeting.
WHEREAS King George the Third, by His Letters Patent under the
Great Seal of Great Britain, bearing date at Westminster, the Fifth day of
April, in the thirty-eighth year of His reign (after reciting therein that I, the
said William Deverell, had, by my Petition, humbly represented unto His
Majesty that after much study, labour, and expence, I had found out and
invented "A NEW PUMP OR PUMP WORK," and which I conceived would be
of great public utility, that I was the first and true Inventor thereof, and
that the same had not been made or used by any other person or persons
to the best of my knowledge and belief, and therefore prayed His Majesty
to grant to me His Royal Letters Patent for the sole use, benefit, and
advantage of my said Invention in manner therein mentioned), did, of His
special grace, certain knowledge, and mere motion, give and grant unto me
His especial licence, full power, sole privilege and authority, that I, the said
William Deverell, my exors, adiñors, and assigns, by myself and themselves,
or by my and their deputy or deputies, servants or agents, or such others as I,
my exors, adors, or assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term of years therein.

page_text: expressed, should and lawfully might make, use, exercise, and vend my said
Invention within that part of Flis Majesty's Kingdom of Great Britain called
England, His Dominion of Wales, and Town of Berwick-upon-Tweed, in
such manner as to me, my exors, adñors, and assigns, should in my or their
discretion seem meet, and that I, the said William Deverell, my exors,
adiñors, and assigns, should and lawfully might have and enjoy the whole
profit, benefit, commodity, and advantage coming, growing, accruing, and
arising by reason of the said Invention, for the term and in manner therein
mentioned; in which said Letters Patent is contained a proviso whereby it
was and is declared that if I should not particularly describe and ascertain the
nature of my said Invention, and in what manner the same is performed, by
an instrument in writing under my hand and seal, 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, that then the
said Letters Patent, and all liberties and advantages whatsoever thereby
granted, should cease, determine, and be void, as in and by the said Letters
Patent, relation being had thereto, it may more fully appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Deverell, do hereby declare that the following is a particular
description of the nature of my said Invention, and of the manner in which
the same is to be performed (that is to say):-
The New Pump or Pump Work is delineated and fully shewn in the
Drawings and Figures made on this parchment, numbered 1, 2, 3, 4, 5, 6;
and the following is an explanation of the said Drawings and Figures:-
Figure 1 represents a perpendicular section of a shaft of a coal mine or
other mine, or of a well, with the apparatus of two pumps, one a lifting pump,
the other a forcing pump. G, G, represent the two working barrels of the
pumps immersed in water, with stuffing boxes F, F, on the top of each of
them, and with barrels B, B, of such length, form, and dimensions as may be
best suited to the places where the works are to be erected, with flanges to
connect the working barrels to the barrels B, B, which communicate with
flues or pipes E, E, A, A, worked into the wall of the shaft or well, or carried
up behind the wall, or in such other direction or situation as may be most con-
venient. These flues may be made with bricks, or stones, or tiles, or with
earthen or other cement or composition. The dimensions of the flues or pipes
may be from one inch diameter to any other diameter that may be necessary
for raising water from the before-mentioned works, or any other works.
D, D, represent two iron rods descending from the top of the shaft to the
pisterns of the pumps.

page_text: Figure 2 represents an horizontal section of a shaft of a coal mine.or other
mine or well. A, A, are horizontal sections of two working barrels in the
shaft or well. B, B, are barrels connected with the working barrels, and
carried into or through the wall to the flues or pipes, whereby a communica-
tion is formed between the working barrels and the flues or pipes through
which the water ascends out of the shaft or well.
Figure 3 represents four lifting pumps, with four working barrels B, B, B, B,
immersed in water, each nine inches in diameter, communicating with one
receiving and discharging pipe A, of ten inches and an half diameter, by four-
other barrels connected at the flanges. C, C, C, C. D, D, D, D,-represent.the.
rods by which the pisterns are worked. A greater or smaller number .of:
working barrels may be made to communicate in the same. manner. with one.
discharging pipe, and may communicate with such discharging pipe,either at
the same height, or at different heights, as may be found convenient. F repre-
sents a post or pillar, either solid or hollow, by which the pipe A is supported.
The pipe A is closed at the neck G, and has no communication with the post
or pillar otherwise than as being supported by it.
Figures 4 and 5 represent similar works with that represented by Figure 3,
differing from it only in the number of the working barrels and in the
respective dimensions of the working barrels and discharging pipes; viz', in
Figure 4 the diameters of the working barrels, as well as the diameter of
the receiving and discharging pipe, are to be nine inches; in Figure 5 the
diameter of the working barrels are nine inches, and the diameter of the
receiving and discharging pipe is seven inches and an half. If the number
or size of the working barrels be increased or diminished, the size of the
receiving and discharging pipe must be varied accordingly.
Figure 6 represents two lengths of pipes A, A, connected by flanges or any
other joint at B, which pipes may be made of earth, pipeclay, potter's clay, or
any other clay, cement, or composition, to be fixed in the wall of any shaft of
a mine or well, or to be carried up behind such wall, or to be placed in any
other situation which may be found most advantageous for raising water from
any of the works before mentioned, or any other works.
And be it particularly noticed that the raising of water from mines or wells
or other works by means of the flues or pipes placed in the walls of shafts or
wells, or carried up behind such walls, or placed in any other situation, and
formed or made of the materials herein-before mentioned, is a new Invention
in this Kingdom; and further, that the raising of water by means of several
working barrels conveying the water into one main pipe only, the diameter of
which shall in some instances so little exceed the diameter of the working

page_text: barrels as is herein-before described, in other instances be equal to it, and in
some cases even less, is a new Invention in this Kingdom.
In witness whereof, I have hereunto set my hand and seal, this Fourth
day of May, in the year One thousand seven hundred and ninety-eight,
and in the thirty-eighth year of the reign of our said King.
Inrolled the Fourth day of May, in the year of our Lord One thousand
seven hundred and ninety-eight.