IMPROVEMENTS IN CONSTRUCTION OF PUMPS
Year: 1867

page_text: LETTERS PATENT to Robert Clegg, of Islington, in the County of
Middlesex, Engineer, for the Invention of "IMPROVEMENTS IN
CONSTRUCTION OF PUMPS."
Sealed the 28th April 1868, and dated the 31st October 1867.
PROVISIONAL SPECIFICATION left by the said Robert Clegg at the
Office of the Commissioners of Patents, with his Petition, on the.
31st October 1867.
I, ROBERT CLEGG, of Islington, in the County of Middlesex, Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
CONSTRUCTION OF PUMPS," to be as follows :-
In the employment of a cam or excentric wheel working on an axis within
a cage or frame in the interior of the body of the pump; at the lower or
bottom end of this cage or frame is the piston, one revolution of the axis
causes the piston to be raised and lowered three times. The cam or excentric
wheel has three projecting points which press against small friction rollers at
the top and bottom of the cage or frame, thus causing the piston to be raised
or lowered for the suction and delivery of water or other liquid. The axis
passes through the body of the pump, to one end of which is attached a crank
and handle.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Robert Clegg in the Great Seal Patent Office on the
30th April 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
CLEGG, of Islington, in the County of Middlesex, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of October, in the year of our
Lord One thousand eight hundred and sixty-seven, in the thirtieth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Robert Clegg, Her special licence that I, the said
Robert Clegg, my executors, administrators, and assigns, or such others
as I, the said Robert Clegg, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN THE CONSTRUCTION OF PUMPS," upon the condition
(amongst others) that I, the said Robert Clegg, my executors or administra-
tors, by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Robert Clegg, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, that is to say:-
My Invention consists in the employment of a cam or excentric wheel
working on an axis within a cage or frame in the interior of the body of the
Jump, at the lower or bottom end of this cage or frame is the piston, one
revolution of the axis causes the piston to be raised and lowered three times.
The cam or excentric wheel has three projecting points which press against
small friction rollers at the top and bottom of the cage or frame, thus causing
the piston to be raised or lowered for the suction and delivery of water or
other liquid. The axis passes through the body of the pump, to one end of
which is attached a crank and handle.
In order to explain my said Invention as completely as possible I now

page_text: proceed to describe the construction as illustrated in the Drawings hereunto
annexed.
Figures 1 and 2 exhibit a small hand pump, the same letters in each
referring to same parts.
A is a sphere or ball containing air; B, a tube by which the water ascends;
C, a bent tube to force out the water, to which a rose or single jet is fixed; D,
a rose; E is the top of the body of the pump, to which is fixed the air ball;
F, the body of the pump; G, the bottom of the pump, in which is fixed a
valve, and at the fluted part india-rubber tubing is attached; H, plate fixed
above the body of the pump, through which is guided the piston rod I; K, a
cam with three projecting points, which in one revolution causes the piston to
be raised and lowered three times; L, axis traversing the body of the pump
to which the crank and handle are fixed and the cam or excentric wheel;
M, round piece of caoutchouc placed upon the piston forming the valve;
N, leather or buffalo hide enclosed within two perforated plates forming the
piston; 0, 0, the metal plates pressing the leather or buffalo hide forming
the piston; P, nut of the piston rod; Q, valve in caoutchouc fixed upon the
perforated plate R; R, perforated plate fixed in the part G; S, small screw;
T, the crank; U, a nut; V, a small tube to throw out water; X, handle in
wood; Y, a rod which passes through the handle to fix it; a, a small screw
to fix the cam or excentric wheel upon the axis L; b, b, two small friction
rollers at top and bottom of the cage or frame against which the cam or
excentric wheel presses in raising and lowering the piston.
Having now fully fully described and set forth the nature and object of my
said Invention for improvements in the construction of pumps, I would observe
in conclusion that I claim the application of this method or plan of raising
water or other liquid to all kinds of pumps.
In witness whereof, I, the said Robert Clegg, have set my hand and
seal, the Twenty-ninth day of April, in the year of our Lord One
thousand eight hundred and sixty-eight.
ROBERT CLEGG. (L.S.)
Witness,
M. T. G. BANYARD.