IMPROVEMENTS IN AND APPARATUS FOR DRAWING OFF PETRO- LEUM AND OTHER FLUIDS, AND FOR MEASURING AND REGISTERING THE QUANTITY OF LIQUID DRAWN OFF
Year: 1876

page_text: LETTERS PATENT to William Phillips Thompson, of 6, Lord Street, Liverpool,
in the County of Lancaster, Consulting Engineer and Patent Agent, for the
Invention of "IMPROVEMENTS IN AND APPARATUS FOR DRAWING OFF PETRO-
LEUM AND OTHER FLUIDS, AND FOR MEASURING AND REGISTERING THE
QUANTITY OF LIQUID DRAWN OFF." A communication from abroad by
Monsieur Charles Margat, of 5, Rue de Chateaudun, Paris, France.
PROVISIONAL SPECIFICATION left by the said William Phillips Thompson
at the Office of the Commissioners of Patents on the 29th November 1876.
WILLIAM PHILLIPS THOMPSON, of 6, Lord St., Liverpool, in the County of
"IMPROVEMENTS IN AND
Lancaster, Consulting Engineer and Patent Agent.
APPARATUS FOR DRAWING OFF PETROLEUM AND OTHER FLUIDS, AND
MEASURING AND REGISTERING THE QUANTITY OF LIQUID DRAWN OFF."
munication from abroad by Monsieur Charles Margat, of 5, Rue de Chateaudun,
Paris, France.
FOR
A com-
The design of this cock is more especially to prevent the accidents so frequent by
leakage of petroleum, It is applicable in magazines or holders of any size where
the public are admitted with a desire to guarantee personal security where petroleum
is sold this Invention was made, it consists,―
1st. In a safety key that the chief of the establishment can retain in his possession
and which will prevent the unauthorized or accidental turning of a cock when not
in legitimate use.
2nd. In a metor guaging and registering the quantity of liquid that goes out of
the holder (without one being obliged to look into the interior to see if it is full or
empty) the holder continuing hermetically closed. By keeping it closed I avoid the
escape of exhalations and all the imflamable fluid remains behind. This safty cock.
has upon its face a main lever, hereafter called the handle, actuating the moveable
interior hollow plug of the cock.

page_text: When it is raised up the safty cock fills through two orifices coming into con-
junction and communicating with the interior of the holder. Then drawing the
handle to the right and thus making the plug turn on its axis, the latter in
changing position immediately cuts off communication with the interior of the
holder. In continuing the movement of the handle it brings another orifice in the
plug opposite the one opening into the tap, thus enabling that part of the contents
of the hollow plug above the orifice to escape. By turning the handle further more
escapes, until when the handle points perpendicularly downward, all has run out.
The flange of the safty cock is divided on one side into 10th, into the other into
quarters, its capacity for French use being usually a cubic decemeter, for English
use a half-pint.
By arresting the pointer (a continuation of the handle) at any of the divisions to
the right we obtain tenths. For quarters it suffices to press upward one or more of
three pins corresponding to the half, or three quarters, as marked on the flange to
obtain a quarter, half, or three quarters. These pins catch the pointer and hold it,
the side of the pin being cut away so as to expose a flat surface to the pointer; or
the quarters can be regulated same way as the tenths. A small air valve or plug
held by a spring into its orifice serves to facilitate the escape of the liquid.
Brd. When the lever is replaced in an upward position the cock fills itself and the
air in it escapes into the upper part of the holder replacing an equel volume of oil or
other fluid. The lever when uppermost can be locked in this position by the use of
n key introduced through a hole in the lever into a keyhole in a screwed plug in
flange below. By then screwing it round the screwed plug is raised up and locks
the lever, other forms of lock will do, but this I prefer..
A registering or counting apparatus actuated by the turning of the interior plug
of the safty cock by means of little teeth arranged round the top of the said plug
records every movement of the handle so that it is impossible to draw any liquid
without the amounts drawn being registered either on the decimal dial or the dial
for quarter litres. This safty cock can be varied in regard to dimension, or to suit
various measures of capacity. Pints, quarts, and gallons will usually be found in
England more useful quantities than the cubic decimetre or litre. It is useful also
for all other kinds of liquids besides petroleum, and can be made of various kinds of
metals; the mode of arranging the orifices for regulating the quantity passed can be
varied, and a series of orifices can be used instead of one only.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Phillips Thompson in the Great Seal Patent Office on the
22nd May 1877.
WILLIAM PHILLIPS THOMPSON, of 6, Lord Street, Liverpool, in the County of
Lancaster, Consulting Engineer and Patent Agent. "IMPROVEMENTS IN AND
APPARATUS FOR DRAWING OFF PETROLEUM AND OTHER FLUIDS, AND FOR
MEASURING AND REGISTERING THE QUANTITY OF LIQUID DRAWN OFF." A com-
munication from abroad by Monsieur Charles Margat, of 5, Rue de Chateaudun,
Paris, France.
The design of this cock is more especially to prevent the accidents so frequent by
leakage of petroleum. It is applicable in inagazines or holders of any size where
the public are admitted with a desire to guarantee personal security where petroleum
is sold this Invention was made, it consists,-
1st. In a safety key that the chief of the establishment can retain in his possession
and which will prevent the unauthorized or accidental turning of the cock when not
in legitimate use.

page_text: 2nd. In a meter guaging and registering the quantity of liquid that goes out of
the holder (without one being obliged to look into the interior to seo if it is full or
empty); the holder continuing hermetically closed. By this means I avoid the
escape of exhalations and all the inflammable fluid remains behind. This safety
cock has upon its face a main lever B, hereafter called the handle, actuating the
moveable interior hollow plug V of the cock, Figs. 1 and 5.
When it is in its highest position the safety cock fills through two orifices O and U,
coming into conjunction and communicating with. the interior of the holder, then
drawing the handle B to the right and thus making the plug V turn on its axis; the
latter in changing position immediately cuts off communication with the interior of
the holder. In continuing the movement of the handle B it brings another orifice K
in the plug opposite another opening E into the tap or discharge orifice. This stop-
cock is usually divided into tenths and into quarters, and can bo made of any
required cubic contents, the one shown in the Drawings holding one cubic
decimetre.
In stopping the pointer Cat the divisions to the left, one obtains tenths (of a
cubic decimetre). For quarters, all that is required is to push in the pegs F, and
according to which division marked upon the right we follow, we obtain quarters or
halves. This is exemplified in Figure 2, where one of the pegs is pushed down;
namely, the one for three-quarters of a cubic decimetre or litre. The little plug
held by a spring upon the orifice serves to facilitate the escape of the liquor.
this it is sufficient to raise it up lightly.
For
1st. When one places the handle B to the top the cock chamber fills without
adınitting fresh air to the holder in the following manner. The chamber being
"empty" it contains the volume of air requisite to replace the liquid required to fill
it. The liquid being heavier than air it stands to reason that the air will allow
itself to be replaced by the liquid and will go to replace in the top of the holder
the liquid extracted to fill the chamber of the cock. The lever B can be locked in
this position by introducing the key into the hole X, Figures 1 and 5, and pushing
it in and turning to the left it enters into its squared keyhole made in the
gudgeon 1, Fig. 5, which is itself screwed into the outer mass. By turning the key
we cause the gudgeon D to enter into the recess in the hole X, Figs. 1 and 5, and
by this means arrest all possible movement of the handle. The register Y being.
regulated by the turning of the interior chamber V by means of little teeth with
which it is armed round its circumference, it is impossible to make any movement
of the lever B or to draw liquid without recording its abstraction, whilst at the
same time its movement cannot be tampered with or the dial altered as it is com-
pletely protected by its construction.
2nd. This regulating cock can be made of various dimensions and to give account
of any desired measures of capacity such as quarts and gallons for instance, conse-
quently every industry employing volatile matter or inflammable liquids could
order regulating cocks of size, capacity, and graduation, suitable to the wants of the
special business.
Having now described my Invention and the best modes known to me of carrying
it into effect, I would observe that I am well aware that ineters to regulate and
record the drawing off of fluids from receptacles have been invented previously, but
they have been so arranged that the atmosphere had to have free access to the
contents of the barrel or receptacle, or were on the well known beer engine plan,
but I do not claim such, but what I do believe to be new under the herein-before in
part recited Letters Patent is,-
ર
1. The general arrangement of combined cock and meter for drawing off and
measuring liquids liable to give off volatile matters, in which no air is admitted to
the interior of the holder except just sufficient to replace the liquor extracted, and
in which two or more different quantities can be drawn off at different times and
the quantity correctly registered in each caso, substantially as described.

page_text: 2. The mode of locking a regulating and measuring cock, substantially as
described.
In witness whereof, I, the said William Phillips Thompson, have hereunto
set my hand and seal, this Seventeenth day of May, in the year of our Lord,
1877.
Witness,
EDW. G. COLTON,
6, Lord St.,
L'pool.
W. P. THOMPSON. (L.S.)