IMPROVEMENTS IN APPARATUS FOR TRANSFERRING FLUIDS
Year: 1860

page_text: LETTERS PATENT to John Musselwhite, of Devizes, in the County of
Wilts, Accountant, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
TRANSFERRING FLUIDS."
Sealed the 10th July 1860, and dated the 13th January 1860.
PROVISIONAL SPECIFICATION left by the said John Musselwhite at the
Office of the Commissioners of Patents, with his Petition, on the 18th
January 1860.
I, JOHN MUSSELWHITE, of Devizes, in the County of Wilts, Accountant, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR TRANSFERRING FLUIDS," to be as follows:-
The application to an ordinary syphon of a compressible chamber (which
may be globular or of any other shape or configuration to be composed of an
elastic material, such as vulcanized india-rubber, but it may also be made of
any other suitable material, which may be kept distended by means of a spring
or springs. The application of a stop-cock or compressible valve below such
first named chamber is necessary to its proper action.
The action of the syphon is such that when the stop-cock or valve is closed,
and the hand presses on the elastic chamber, the air is expelled, and on the

page_text: chamber again expanding, the fluid is sucked or drawn to such a position in
the long arm of the syphon, as to ensure (on the stop-cock being turned or the
valve loosened) a continuous flow of the liquid.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Musselwhite in the Great Seal Patent Office on the
13th July 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MUSSELWHITE, of Devizes, in the County of Wilts, Accountant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of January, 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 Musselwhite, Her special license that I, the said John
Musselwhite, my executors, administrators, and assigns, or such others as
I, the said John Musselwhite, 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 APPARATUS FOR TRANSPERRING FLUIDS," upon the con-
dition (amongst others) that I, the said John Musselwhite, 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 immediately after the date of the said Letters
Patent.
.NOW. KNOW. YE, that I, the said John Musselwhite, 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. improvements in the manufacture of the apparatus. herein-before:
mentioned simplify the action of syphons, enable a large quantity and weight
of fluid to be drawn over, and render the manipulation with acids safe anil
cleanly.

page_text: Fig. 1 in the Drawing hereto annexed is a front view of my syphon a,
being a portion of tube of the syphon; b, an exhausting chamber, which is here
represented to be spherical, constructed of vulcanised india-rubber, or of any
other suitable material. In constructing a syphon of large bore and long
length I give this chamber a greater expansive power by inserting a spring or
springs within it. It is also convenient for this purpose to deviate from the
spherical form, and adopt an elongated shape. The springs used by me are
helical; although for some purposes any other description of spring may be
used, (see Fig, 2, a, chamber; b, spring). Below the exhausting chamber
is the stop cock c. The connecting tube d, which I term the arm of the stop
cock, is made sufficiently long to be drawn forward readily when required.
Fig. 3 is a sectional view of the syphon exhausting chamber and stop cock,
a, plunger of stop cock; b, arm of stop cock; c, vent of syphon; d, air vent,
diagonal to the syphon vent opening into the tube of syphon at e, and into
the arm of the stop cock at f. The action of this syphon is that when the arm
of the stop cock is in the position shewn in Figs. 1 and 3, the syphon vent is
closed, and the air vent is open to the interior of the syphon tube. The
exhausting chamber being compressed by the hand, the air is forced through
the air vent d, the syphon is then placed in the fluid to be drawn off,
and the chamber allowed to expand, the air forced out returns again through
the air vent to the chamber, and the fluid drawn over, and on the syphon vent
being opened, by drawing the arm of the stop cock forward, (as in the side view
Fig. 4,) runs in a continuous stream.
Fig. 5 is a section of another form of air vent, which I use. a, air vent
opening into the syphon vent and into the arm of stop cock; b, air vent
opening into syphon vent and into the tube of syphon.
Fig. 6 shews the arm of the stop cock as composed of glass with a bulb, by
which arrangement the coming over of the fluid is indicated.
Fig. 7 is a front view of a glass syphon to be used for drawing off acids. The
side arm a, with bulb b, opens into the syphon tube at c. For additional strength.
the side arm is affixed again to the syphon at d. At e is attached a compressible
valve f, composed of vulcanised india-rubber, or other elastic tubing, which
being pressed between the forefinger and thumb at the time the exhausting
chamber g is expanding the fluid is drawn over to the bulb, the compressible
valve is then loosened, and the fluid runs off. As there are some parts of my
syphon that are not new in construction, I wish to observe I wish to observe
that I claim as my Invention,
1st, the application of a spring or springs to the exhausting chamber.

page_text: 2nd, the arrangements of the stop cock.
3rd, the application of the compressible valve.
4th, the introduction of a glass tube with bulb to indicate the drawing over
of the fluid.
In witness whereof, I, the said John Musselwhite, have hereunto set my 5
hand and seal, this Twelfth day of July, in the year of our Lord
One thousand eight hundred and sixty.
JOHN (LS.) MUSSELWHITE.