IMPROVEMENTS IN PUMP GEAR
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 25th January 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 PUMP GEAR" to be as follows:
This Invention consists of certain mechanical arrangements for transmitting
power to give motion to pumps, and in the form of the valves and valve seats
of pumps...
To apply this Invention, a working rod.or lever is placed in an horizontal
direction, one end of which is 'jointed to the top of the pump rod (or" spear."),
and the other or reverse end to a fixed axle (such as an horizontal bar fixed
at a right angle thereto), upon which it can turn in a vertical direction. On
each side of the horizontal working lever an anti-friction wheel is placed, and
which anti-friction rollers are acted upon from below by two excentric wheels
or cams keyed to the driving shaft, which is placed at right angles to the
horizontal working lever, to which the anti-friction rollers are attached.
When this Invention is applied to small pumps it is preferred to use only
one anti-friction wheel, which is placed to work vertically within a slot formed
in the horizontal working lever, and which is acted upon by a single excentric
wheel, or a cam keyed to the driving shaft.

page_text: To give stability to the working lever, to which the friction rollers are
attached, it is proposed to form the end that works on the fixed axle forked,
so as to clip the axle in two places, and also to use grooved excentrics. The
peculiarity in the valves and valve seats consist in the use of a double valve,
and forming the valve seat so that when seen in vertical section would form
the two upper sides of a triangle.
That this Invention may be more readily seen and understood, hereunto is
annexed Drawings, illustrating its application to a set of ship's pumps; like
letters are used to denote similar parts.
Figure 1 is a front elevation of the apparatus; Figure 2 is a partial sec-
tional side clevation of ditto, showing the "motion," and the form of the double
valve and valve seat as applied to a pump bucket.
A, A, the two "main pumps;" a, a, rods or "spears" of ditto; B, B, the two
"bilge pumps;" b, b, rods of ditto; C, driving shaft, having keyed, fast thereto
D, the excentrics, which act against the lower edges of E, the anti-friction
wheels, which are mounted upon F, the working levers, which are jointed at
one end to the pump rods, and at the other to G, a fixed rod, upon which the
levers (F) work vertically; g, standards to support ditto; H, fly wheels on
driving shaft; I, a small beam, having a slot at each end, through which pass
pins or studs, which are fast to the rods of the main pumps. The object of
this beam is to equalise the action of the two main pumps, and it has sockets
formed in the ends thereof, into which bars can be slipped, by which the two
main pumps can be worked in the event of any of the upper working gear
getting out of order. K, standard, upon which the lever (I) is supported;
L, framework supporting working gear; M (Figure 2), pump bucket with
double valve, shown at rest on angular seat.