CERTAIN IMPROVEMENTS ON ENGINE PUMPS APPLICABLE TO SHIPS, AND EVERY OTHER PURPOSE THAT A PUMP CAN BE APPLIED TO
Year: 1834

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HEARLE, of Devonport, in the County of Devon, Engineer, Plumber, and
Founder, send greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Third day of November, in the fifth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
John Hearle, His especial licence, full power, sole privilege and authority, that
I, the said John Hearle, my exors, adññors, and assigns, or such others as I, the
said John Hearle, my exors, adññors, or assigns, should at any time agree with,
and no others, from time to time and at all times 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 "CERTAIN IMPROVEMENTS ON ENGINE PUMPS APPLICABLE TO SHIPS, AND EVERY
OTHER PURPOSE THAT A PUMP CAN BE APPLIED TO;" in which said Letters Patent
is contained a proviso obliging me, the said John Hearle, by an instrument in
writing under my hand and seal, particularly to describe and ascertain the
nature of my said Invention, and in what manner the same is to be per-
formed, and to cause the same to be enrolled in His said Majesty's High

page_text: Court of Chancery within six calendar months next and immediately after the
date of the said recited Letters Patent, as in and by the same, reference being
thereunto had, will more fully and at large appear.
pumps
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Hearle, do hereby declare the nature of my said Invention to consist in
inclosing lift or forcing pumps in a vessel capable of being made air tight, in
such manner as to afford great protection to the machinery at the same time
that the said vessel answers the purpose of an air chamber, when the
are required to be used as force pumps or for other purposes; and in further
compliance with the said proviso, I, the said John Hearle, do hereby describe
the manner in which my said Invention is to be performed by the following
statement thereof, reference being had to the Drawing annexed, and to the
figures and letters marked thereon (that is to say) :-
DESCRIPTION OF THE DRAWING.
Similar letters of reference are used to denote similar parts in all the
Figures. A is a bed or receiver, of cast iron or any other metal, with a
flange extending from the sides of the upper part, with bolt or screw holes, a
flange also from the bottom of bed, having holes in the angles for fastening
it to the cistern or on a plank for use, with a bolt and forelock, or nut and
screw. B, B, metal screws on each side of bed or receiver, for attaching the
suction hoses or pipe 1, 1. C, C, pumps, with brass or other metal cylinders,
fitted with metal valves, drawing boxes, and rods. These cylinders are open
at the top, and the pumps are screwed on the upper part of bed or receiver A.
D is what I call the container or air vessel, secured by screws or screwed bolts
and nuts by a flange round the bottom to the flange on the upper of the bed
or receiver A. The container incloses the whole of the pumps, and the lever
or beam I for working them. E is the cover of the container or air vessel,
capable of being made air tight, when necessary, by a flange, to the upper part
of the container, similar to the flange below on the bed. F, F, metal screws
with caps, on the lower part of the container or air vessel, to screw the
delivery or discharging pipes or hoses 2 on when used as a fire engine. G,
metal screw and cap, of a larger size, in the lower part of container. This
cap is to be taken off when the pump is used as a lifting, house, or ship pump,
and no air vessel required. H, H, metal cap and screw, on the upper part of
cover of container; the cap to be taken off for oiling the bearings of lever;
or when used as a pump for common purposes to admit air into the container.
I, internal lever or beam, of brass or other metal, fixed in centre of container
or air vessel, to which the pump rods are fixed at each end by metal bolts,

page_text: the iron axle 3 passing through the lever, and working on bearings fixed to
the sides of the container. The ends of the axle pass through the sides of the
container to receive the external levers 4 for working the pump as a fire
engine, the axle being kept air tight by stuffing boxes 5 on the outside of
container; but when the engine is to be used as a common lift pump, then a
common brake or handle, with a socket end, may be substituted, for the cross-
handle brake. K, plan of bed or receiver, with lower valves 6. L, plan of
the lower flange of the bed or receiver, with holes for screwing or bolting the
engine to a board or cistern. M, cross handles, for fixing in the ends of levers
for working the pump, or for putting through the eyes 8 in the sides of the
container for carrying the engine.
Now, whereas I claim as my Invention,
First, the container herein-before described; and,
Secondly, the arrangement of brakes and levers, by which I am enabled to
use the engine as a lift or force pump at pleasure, and whereby I gain the
following advantages, that is to say,-first, I am enabled to use pumps of the
simplest construction and little friction, and when out of order casy to repair,
the upper box or bucket discharging the water over the head of the cylinder,
which is open at top, and does not require that part to be covered, or the
piston rod to pass through a stuffing box or gland, which causes much friction,
as on the common lifting pump for raising water to a great height; secondly,
the whole of the machinery is simplified and brought together within a small
space, while no part of it is exposed to injury, being protected within the con-
tainer, which is of great strength, and from its portability can be readily
removed to any situation, however confined.
And such my Invention being, to the best of my knowledge and belief,
entirely new, and never before used within that of His said Majesty's United
Kingdom of Great Britain and Ireland called England, His Dominion of
Wales, and Town of Berwick-upon-Tweed, I do hereby declare this to be my
Specification of the same, and that I do verily believe this my said Specifi-
cation doth comply in all respects, fully and without reserve or disguise, with
the proviso in the said herein-before in part recited Letters Patent contained,
wherefore I hereby claim to maintain exclusive right and privilege to my said
Invention.
In witness whereof, I, the said John Hearle, have hereunto set my hand
and seal, this Twenty-eighth day of April, in the year of our Lord One
thousand eight hundred and thirty-five.

page_text: AND BE IT REMEMBERED, that on the Twenty-eighth day of April,
in the year of our Lord 1835, the aforesaid John Hearle 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 stamped according to the
tenor of the Statute made for that purpose.
Inrolled the Second day of May, in the year of our Lord One thousand
eight hundred and thirty-five.
Inrolled the Second day of May, in the year of our Lord One thousand
eight hundred and thirty-five.