A CERTAIN CONSOLIDATED OR COMBINED DRAWING AND FORCING PUMP
Year: 1825

page_text: TO ALL WHOM THESE PRESENTS SHALL COME, we, RALPHI
STEPHEN PEMBERTON and JOHN MORGAN, both of Llanelly, in the County of
Carmarthen, Gentlemen, send greeting.
WHEREAS His present Majesty King George the Fourth, by His
Letters Patent, bearing date at Westminster, the Twenty-first day of
October, in the sixth year of His reign, hath given and granted unto
us, the said Ralph Stephen Pemberton and John Morgan, our exors,
adors, and assigns, special licence, full power, sole privilege and authority,
during the term of years therein expressed, to make, use, exercise, and vend,
within that part of His Majesty's Kingdom of Great Britain called England,
His Dominion of Wales, and Town of Berwick-upon-Tweed, our Invention
of "A CERTAIN CONSOLIDATED OR COMBINED DRAWING AND FORCING PUMP;"
in which said Letters Patent is contained a proviso obliging us, the said
Ralph Stephen Pemberton and John Morgan, particularly to describe and
ascertain the naturo of our said Invention, and in what manner the same is
to be performed, under our hands and seals, and cause the same to be
inrolled in His Majesty's High Court of Chancery within two calendar months
next after the date of the said Letters Patent, as in and by the same,
reference being thereunto had, may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, we, tho said
Ralph Stephen Pemberton and John Morgan, do hereby describe and ascertain

page_text: the nature of our said Invention, and the manner in which the same is to
be performed, as well by the Figures or delineations of machinery as by the
description or explanation set forth :-
(Figure 1) letter A, the main pole attached to the end of the lever beam; B,
the pump rod attaching the pump bucket to the main pole; C, the plunger
rod attaching the plunger pole to the main pole; D, the plunger pole; in the
first Figure it is represented to have risen nearly to the top, and in the second
Figure to have descended nearly to the bottom of the plunger case.
It is
turned with a.smooth surface, so as to move up and down as closely as possible
to the stuffing box, and thereby prevent the admission of air into the plunger
case. E, the pump bucket with its valves v, v, attached to the pump rod; in
the first Figure it is represented to have risen nearly to the top with its valves
shut, and in the second Figure to have descended nearly to the bottom of the
working barrel with its valves open. By the addition of this pump bucket
with its rod and working barrel, the common forcing pump is by our Invention
rendered capable of performing in the same time the work of a common
drawing pump as well as of a forcing pump; the upper clack becomes by this
means inoperative, and may be withdrawn, as is the case in the first and second
Figures, for the pump bucket E supplies its place. F, the plunger case. G,
the stuffing box affixed to the top of the plunger case, by means of which, in
the common way, the air is excluded from the plunger case by hemp or tow
pressed close at c, c, to the sides of the plunger pole by the screws m, m.
II, a cup affixed by us to the top of the stuffing box, or rather made to form
a part of it, for the purpose of holding a small quantity of water, and if
always kept full, as in most situations it without difficulty may, will effectually
prevent the admission of air into the plunger case, the entire exclusion of
which is of the utmost importance to the operations of the pump. I, the
working barrel. K, a column of pumps. L, a branch piece which connects
the plunger case with the working barrel. M, the clack piece, in which is
scated the clack N, the clack with its valves 8, s; it is seated in the first and
second Figures somewhat lower than usual, in order to prevent any of the
water which had risen through it from being forced back by the sudden
depression of the plunger pole; in the first Figure the clack is represented
with its valves open, and in the second Figure with its valves shut. O, the
wind bore, though which the water is first admitted to the pump from the
cistern in which it is placed. P, the cistern, which supplies the pump with
water. R, the water trough at the top of the pump, shewing in the first and
second Figures a constant flow of water through the column of pumps, both
at the rise and fall of the lever beam. The first Figure shews the consolidated

page_text: or combined drawing and forcing pump at the rise of the lever beam. On the
elevation of the plunger pole D and pump bucket E; a vacuum is formed under
them in the plunger case F and working barrel I, when the water in the
cistern P, by the pressure of the air, instantly rushes up through the wind
bore O, and forces open the valves 8, 8, of the clack N, passes through the
clack piece M and branch piece L, and immediately fills the vacua formed as
above. As soon as the pump bucket and plunger pole have reached the top of
the working barrel I and plunger case F, they are on the reversed motion
and fall of the lever beam (as in the second Figure) depressed; then the
valves s, s, of the clack N, are instantly shut, so that the water which had
passed through it as above cannot escape back, and so much thereof as bad
occupied the space of the plunger pole D when elevated, is, by its depression,
immediately forced up the working barrel I, through the valves v, v (which
are now open), of the descending pump bucket E (as is shewn in the second
Figure), and then by the repeated motions of the lever beam forced up through
the column of pumps K, until it reaches the summit or trough R; and when
the pump bucket E and plunger pole D have reached the bottom of the
working barrel I and plunger case F, they are, on the reversed motion and rise
of the lever beam, as in this first Figure, again elevated, when the remainder.
of the water, which had at their preceding elevation passed up through the
clack N, is taken up through the working barrel I by the pump bucket E,
which has its valves v, v, now shut by the weight of the column of water upon
it, and by the repeated motion of the lever beam the water is afterwards drawn
up through the column of pumps K until it also reaches the summit or
trough R, hence the water is drawn and forced up by this pump at the alter-
nate rise and fall of the lever beam, and when it has reached the top of the
column of pumps K, continues to flow without intermission through the
trough R, as long as the lever beam is kept in motion. The second Figure
shews the consolidated or combined drawing and forcing pump at the reversed
and downward motion of the lever beam, varying only from that which is repre-
sented in the first Figure by the addition of another plunger on the right hand of
smaller dimensions, by which it will be seen that more pumps of that descrip-
tion and of various sizes may be affixed to this pump without the addition of a
clack or pump bucket; the more that are added will of course cause the water
to pass with greater velocity, and the dimensions may be varied by the dimi
nution of the plunger pole and contraction of the stuffing box only; and we
have also to observe that a plunger or forcing pump may be affixed to the
columu of pumps K at a higher altitude by attaching to the pump rod B
another pump bucket, and by making even the inner surface of that part of

page_text: the pump K in which it will have to traverse. The action of all the parts
shewn in this Figure is the same as in the first Figure, and the same letters in
cach refer to the same parts.
In witness whereof, we, the said Ralph Stephen Pemberton and John
Morgan, have hereunto set our hands and seals, this Twenty-fifth day 5
of October, One thousand eight hundred and twenty-five.
This deed or instrument was duly signed,
sealed, and acknowledged by the said
Ralph Stephen Pemberton and John
Morgan, in the presence of and before
RA. S. PEMBERTON. (L.S.)
JOIN MORGAN. (L.B.)
JAMES, Lxtra.
the year of our Lord 1825, the aforesaid Ralph Stephen Pemberton and John
Morgan came before our said Lord the King in His Chancery, and acknow-
ledged the Specification aforesaid, and all and every thing therein contained
and specified, in form above written. And also the Specification aforesaid was
stamped according to the tenor of the Statute made for that purpose.
Inrolled the Fifteenth day of November, in the year of our Lord One
⚫ thousand eight hundred and twenty-five.