IMPROVEMENTS IN THE DRIVING GEAR OF PUMPS
Year: 1860

page_text: LETTERS PATENT to John William Ford, of Change Alley, Cornhill, in
the City of London, Ship Broker, for the Invention of "IMPROVEMENTS IN
THE DRIVING GEAR OF PUMPS."-A communication from abroad by Charles
W. Clements, of Yarmouth, Nova Scotia.
PROVISIONAL SPECIFICATION left by the said John William Ford at
the Office of the Commissioners of Patents, with his Petition, on the
24th April 1860.
I, JOHN WILLIAM FORD, of Change Alley, Cornhill, in the City of London,
Ship Broker, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE DRIVING GEAR OF PUMPS," to be as follows:-
I place two pumps, one under each end of an oscillating beam or lever,
which is mounted on a suitable fulcrum and standard, the pump rods aro
connected with this beam at each end, which bas oscillating motion com-
municated to it by an arm or lever which depends or radiates from the centre
of such beam or its fulcrum, and is rigidly connected therewith; this arm is
connected by a suitable rod to a crank, whose diameter of revolution is
regulated to give the oscillation to produce the stroke required for the pumps.
The stroke may be varied by altering the point of connection of the connecting
rod with the pendant arm or lever, a spur pinion on the axis of the crank
gears with a spur wheel mounted on a fly wheel shaft, which receives motion
by a winch handle fitted to such fly wheel shaft, or by other suitable meaus.
The whole is fitted in a framo suitable for the purpose.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John William Ford in the Great Seal Patent Office on the
24th October 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Jous
WILLIAM FORD, of Change Alley, Cornbill, in the City of London, Ship
Broker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of April, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John William Ford, Her special licence that I, the said John William Ford,
my executors, administrators, and assigns, or such others as I, the said John
William Ford, 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 DRIVING GEAR OF PUMPS," a communication from abroad by Charles W.
Clements, of Yarmouth, Nova Scotia, upon the condition (aniongst others)
that I, the said John William Ford, my executors or administrators, 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John William Ford, do hereby declare
the nature of the 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, reference being had to the Sheet of Drawings hereunto annexed,
& to the letters and figures marked thereon (that is to say) :-
This Invention relates to a double-acting pumping machine principally
adapted for ship purposes, and consists in the peculiar arrangement and com-
bination shown in the Drawings hereunto annexed. I mount two pumps, one
under each end of an oscillating beam or lever which is mounted on a
suitable fulcrum and standard, the pump rods are connected with this beam at
each end, which has oscillating motion communicated to it by an arm or lever
which depends or radiates from the centre of such beam or its fulcrum, and is
rigidly connected therewith; this arm is connected by a suitable rod to a

page_text: crank, whose diameter of revolution is regulated to give the oscillation to
produce the stroke required for the pumps. The stroke may be varied by
altering the point of connection of the connecting rod with the pendant arm
or lever. A spur pinion on the axis of the crank gears with a spur wheel.
mounted on a fly wheel shaft, which receives motion by a winch handle fitted
to such fly wheel shaft, or by other suitable means. The whole is fitted in a
frame snitable for the nuance
Fig. 1 represents an elevation or a double lever pumping machine according
to this Invention; Fig. 2, a plan; and Fig. 3, a transverse vertical section of
the same. In all the three Figures the same letters of reference indicate like
parts where they recur.
A, A, is a framework mounted on suitable standards or supports firmly
secured in the deck or bed plate in which the pumps B, B, are fixed. The
buckets of the pumps are connected by the rods E with either end of the
lever or beam D mounted on a fulcrum at the upper part of pillar C, also
raised from the deck or bed of the machine. The beam D is keyed fast
upon its axis f, and has also keyed or otherwise fixed upon it a pendent arm g,
which being caused to oscillate, communicates an oscillating motion to the
beam D, and thereby producing the up and down reciprocating motion to the
puinp rods E, which is transmitted to the pump buckets and raises the water,
as well understood. In order to communicate the oscillating motion and
power to the pendent lever G, I connect it by the rod H to the crank pin of a
crank K fixed upon a shaft L, the radius of which crank is equal to half the
amount of oscillation it is desired to communicate to the pendant lever G,
each complete revolution producing a double oscillation of that lever equal to
that extent. The shaft L has keyed upon it a spur pinion M gearing with a
spur wheel N fixed upon the main driving shaft R. The proportion of the
spur gear shown is as two to one, therefore shaft L makes two revolutions for
each one of shaft R. I also fix a fly wheel O on shaft R in order to equalize
the motion. P is the winch handle for driving the machine, which may be
adapted for one or more men to drive by. Thus it will be seen that the rotary
motion communicated by the winch handle is transmitted through the spur
wheels to the crank L, which imparts a reciprocating motion to lever G and
therefore to the lever D, and pump rods and buckets or pistons of the pumps
which will raise and discharge the water as well understood in pumping. If it
is desired to vary the stroke of the pumps, this may be readily effected by
moving the point of connection of the connecting rod H with lever G farther

page_text: from or nearer to the fulcrum f, so as to make the leverage of that arm
greater or less.
Having described the nature of this Invention, and the manner of per-
forming the same, I declare that what I claim as the Invention to be protected
by the herein-before in part recited Letters Patent is, the arrangement and
combination of parts constituting the driving gear of pumps, herein-before
described and represented in the Drawings annexed.
In witness whereof, I, the said John William Ford, have hereunto set
my hand and seal, this Twenty-fourth day of October, in the year of
our Lord One thousand eight hundred and sixty.