IMPROVEMENTS. IN THE CONSTRUCTION OF FORCE PUMPS. AND THEIR APPER- TENANCE
Year: 1855

page_text: application for Letters Patent was not given within the time prescribed
by the Act.)
PROVISIONAL SPECIFICATION left by William Winstanley and Joseph
Kelly at the Office of the Commissioners of Patents; with their
Petition, on the 16th March 1855.
We, WILLIAM WINSTANLEY and JOSEPH KELLY, of Liverpool, in the County
of Lancaster, Engineers, do hereby declare the nature of the said Invention
for "IMPROVEMENTS. IN THE CONSTRUCTION OF FORCE PUMPS. AND THEIR APPER-
TENANCE" to be as follows (that is to say):-
This Invention consists mainly in placing two upright single-action pumps
within an outer caseing, which forms the air vessel or vessels (the form of
which will be readily seen by reference to the annexed Drawings), and in
constructing the nosle of the ejection or hose pipe to be used therewith of a
double tube, having a cavity or air space between the inner side of the larger
outer pipe and the outer side of the smaller inner tube, through which the
water is ejected.
That this Invention may be more readily seen and understood, hereunto are
annexed Drawings in explanation of its application to a ship's fire engine.
Like letters are used to denote similar parts.
Figure 1 is a vertical sectional elevation of the engine; Figure 2 is ap
horizontal section of the same, taken from the points X to Y; Figure 3 is a
longitudinal section of the nosle of the hose pipe.
A, the outer caseing or covering of the pump, which is divided internally

page_text: into three chambers; in the two lesser, side chambers are placed. B¹ and B2,
two upright single-action pump barrels. The pump cylinders do not fill their
chamber, space being left between the sides of the chambers and pump barrels
to allow the water to flow from the top of the pump cylinders down their
sides, and through openings at the bottom of the small chambers into the
centre apartment or main air chamber, which is provided with an opening in
the side for the ejection pipe. C¹and Care pipes extending from the bottoms
of the pump cylinders through the waterways (formed in the base of the
machine). These pipes have lateral openings in their sides for the admission
of the water to the pump barrels, and are used to secure the pump cylinders
on their seats by means of large caps or nuts screwed on to the lower ends
thereof, and which rest against the under side of the base. D, valve on suction
pipe; E¹ and E³, valves on the bottom of the pump cylinders; F1 and F,
pistons, which are provided with suitable valves; G¹ and G², piston rods working
through glans at the top of their chambers; Hand H³, guides for piston rods;
I, connecting rods between piston rods; and K, the working beam, which has
its fulcrum on the top of the centre air chamber, and is supported by L, a pin,
which is made fast to the working lever, and works upon its side bearings;
M, ejection pipe; N1, N2, and N³, dotted lines, mark the supposed water lines
in the chambers; 0, 0%, and 0%, air space; P (Figure 3), outer tube of
nosle; Q, inner tube of ditto, through which the water is ejected; R, cavity for
air space between the inner and outer tubes, forming the nosle of hose pipe.