IMPROVEMENTS IN APPARATUS FOR MEASURING OIL AND OTHER LIQUIDS
Year: 1870

page_text: LETTERS PATENT to Isaac Mason, of Hill House, Farnsfield, near
Southwell, in the County of Nottingham, Engineer, for the Inven-
tion of "IMPROVEMENTS IN APPARATUS FOR MEASURING OIL AND OTHER
LIQUIDS."
Sealed the 9th August 1870, and dated the 16th February 1870.
PROVISIONAL SPECIFICATION left by the said Isaac Mason at the
Office of the Commissioners of Patents, with his Petition, on the
16th February 1870.
I, ISAAC MASON, of Hill House, Farnsfield, near Southwell, in the
County of Nottingham, Engineer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN APPARATUS FOR MEASURING OIL And
OTHER LIQUIDS," to be as follows:-
My improved apparatus consists of a vessel made of metal, glass, or
other suitable material; in its interior is a hollow float or piston which
floats on the liquid and is provided with a flat piston rod passing
through the lid of the vessel; the piston rod is graduated to indicate
the quantity of liquid in the vessel; one, two, or more fingers are fixed

page_text: to the lid which serve to indicate the position of the float, and con-
sequently the quantity of liquid in the vessel. The cistern or other
reservoir containing the liquid to be measured is placed above the level
of the measuring vessel, and is connected to the latter by a pipe which
enters the measuring vessel at its bottom, where an ordinary cock or
valve is placed; a tap to draw off the contents of the measuring vessel
is placed in the centre at the bottom; the bottom of the vessel is made
round or concave so that the liquid may run off freely. The lower face
of the float or piston corresponds to the shape of the bottom of the
vessel. This improved apparatus is particularly suitable for measuring
mineral oils, benzoline, turpentine, colza, and other oils, but it may be
used for liquids of any description.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Isaac Mason in the Great Seal Patent Office on
the 12th August 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ISAAC
MASON, of Hill House, Farnsfield, near Southwell, in the County of
Nottingham, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of February, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-third
year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Isaac Mason, Her special licence that
I, the 'said Isaac Mason, my executors, administrators, and assigns,
or such others as I, the said Isaac Mason, my executors, adminis-
trators, 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, usc, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUS
FOR MEASURING OIL AND OTHER LIQUIDS," upon the condition (amongst
.others) that I, the said Isaac Mason, 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,

page_text: 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 Isaac Mason, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement (that is to say):-
My improved apparatus consists of a vessel made of metal, glass, or
other suitable material; in its interior is a hollow piston which rests
on the liquid, and is provided with. a flat piston rod passing through the
lid of the vessel; the piston rod is graduated to indicate the quantity
of liquid in the vessel; one, two, or more fingers are fixed to the lid,
which serve to indicate the position of the piston, and consequently the
quantity of liquid in the vessel. The cistern or other reservoir con-
taining the liquid to be measured is placed above the level, of the
measuring vessel, and is connected to the latter by a pipe which enters
the measuring vessel at its bottom, where an ordinary cock or valve is
fixed; a tap to draw off the contents of the measuring vessel is placed
in the centre at the bottom, which is made round or concave so that
the liquid may run off freely. The lower face of the piston corresponds
to the shape of the bottom of the vessel. This improved apparatus is
particularly suitable for measuring mineral oils, benzoline, turpentine,
colza, and other oils, but it may be used for liquids of every description.
And in order that my Invention may be readily carried into operation
I will proceed to describe the accompanying Drawing, in which Fig. 1
represents a sectional elevation of my improved apparatus for measuring
oil and other liquids; Fig. 2 is a plan of the same.
a is the measuring vessel, made of metal, glass, or other suitable
material, provided with the lid ; and c is a hollow piston fitting in
the vessel a and resting on the liquid to be measured; this piston is
provided with a flat piston rod d, which passes through a hole in the
lid b. The piston rod is graduated to indicate the quantity of liquid in
the vessel a. The indicating fingers e, e, are fixed to the lid b, and as
these fingers point to the graduations on the piston rod d it is evident
that they indicate the quantity of liquid in the vessel a. The cistern or
other reservoir containing the liquid to be measured is placed above the
level of the measuring vessel a, and it is in communication with it by
means of the feed pipes, which is bent at the bottom and enters the

page_text: lower end of the vessel a. The pipefis provided with a tap f¹ to open
or close the communication between the cistern and the measuring
vessel. The tap g fixed to the centre or to one side of the bottom of
the measuring vessel is to discharge the contents when required. The
bottom of the measuring vessel is concave, and the lower side of the
piston c is of a corresponding convex form, so that when the piston is
down every portion of the liquid has been drawn off and measured. The
piston c may fit casily into the measuring vessel and float on the liquid
to be measured, or if preferred it may fit accurately and be packed; in
this latter case the piston rod is hollow for air to escape when the liquid
is running into the measuring vessel.
Having thus stated the nature of my Invention and described a
_convenient_mode_of_performing_the_same, I wish to remark that I do
not intend to limit myself to the details given, as the shape of the
vessel and other particulars may be varied; but what I do claim is,―
The improved apparatus described for measuring oil and other liquids,
consisting of the measuring vessel with a piston and graduated piston
rod.
Also of the indicating fingers and supply pipe and discharge tap.
In witness whereof, I, the said Isaac Mason, have hereto set my
hand seal, this Eighth day of August One thousand eight hundred
and seventy.