New or Improved Means for Measuring Liquids.
Year: 1889

page_text: Date of Application, 30th Nov., 1889
Date of Application, 30th Nov., 1889
Complete Soecincation Left. Z'IN AU2.. 7890—Accepted. 4th Uct.. 1890
PROVISIONAL SPECIFICATION.
A New or Improved Means for Measuring Liquids.
1 GEORGE HERBERT TIMMIS of the Croft Old Swinford, Stourbridge in the County
of Worcester, Mining Engineer, do hereby declare the nature of this invention to
be as follows :-
The method in common use for measuring liquids is to allow such liquid to flow
into a standard measure until it is full and after emptying the measure to repeat the
process; seeing that liquids are usually contained in vessels supplied with a cock or
tap by means of which the flow is regulated or stopped a certain amount of waste of
liquid usually takes place both by the overflow of liquid in the measure and by
dripping from the cock which can never be closed so suddenly as is required to avoid
all waste.
Much time is wasted by measuring into a separate vessel and it is also under the
control of the operator when using a standard measure to draw off more or
less than the required quantity which it is impossible to do with my invention.
The objects of my invention are to entirely do away with the necessity for a separate
standard measure as I combine it with the plug or stopper of the cock used.
With these objects in view I construct the plug without a direct through passage in
place of which I form one or more recesses in the body of the plug suitable to contain
a known quantity of the fluid. The chamber or chambers may or may not be stamped
as containing a definite standard quantity and a standard disc of metal or other suit-
able material may be provided and by inserting this disc in the plug the quantities
drawn off can be regulated as required.
The plug may be so contrived as to make it necessary to complete the half turn
before reversing.
When the plug
so placed that this recess is opposite the opening to the vessel the
recess is filled with liquid but at that time there is no connection between the recess
and the outer air. If now the plug be rotated until the recess is opposite the outlet.
the measured quantity of liquid will flow out. I prefer usually though it is not
essential to make two equal recesses in the same plug one opposite the other so that
while one is emptying itself the other is being filled. I also find it advisable to make a
small hole in the outside casing of the cock so as to allow air to reach the recess when
emptying itself in order to obtain a steady flow of the liquid.
The top of the passage leading from the plug to the vessel containing the liquid to
be drawn off should have a slightly upward inclination so that the air carried into the
passage by the empty chamber of the plug may readily escape into the vessel. It will
be seen that by using this form of plug an amount of air precisely the same in quantity
as the amount of liquid drawn off is admitted to the vessel each time the tap is turned.
It is not therefore necessary to have any other vent hole or other opening to the vessel
except through the tap left open for the supply of air.
:
The tap may be worked in any convenient way i.e. rotated or moved backward
and forward and any available means used to check and register the movements.
Dated this 28th day of November 1889.

page_text: COMPLETE SPECIFICATION.
A New or Improved Means for Measuring Liquids.
I GEORGE HERBERT TIMMIS of 2 Great George Street Westminster London S.W.
Mining Engineer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
..the following statement:-
The method in common use for measuring liquids is to allow such liquid to flow
into a standard measure until it is full and after emptying the measure to repeat the
process seeing that liquids are usually contained in vessels supplied with a cock or tap
by means of which the flow is regulated or stopped a certain amount of waste of
liquid usually takes place both by the overflow of the liquid in the measure and by
dripping from the cock which can never be closed so suddenly as is required to avoid
all waste. Much time is wasted by measuring into a separate vessel and it is also
under the control of the operator when using a standard measure to draw off more or
less than the required quantity which it is impossible to do with my invention.
The objects of my invention are to entirely do away with the necessity for a
separate standard measure as I combine it with the plug or stopper of the cock
used.
With these objects in view I construct the plug without a direct through passage in
place of which I form one or more recesses in the body of the plug suitable to contain
a known quantity of the fluid.
.
The chamber or chambers may or may not be stamped as containing a definite
standard quantity and a standard disc of metal or other suitable material may be
provided and by inserting this disc in the plug the quantities drawn off may be
regulated as required.
The plug may be so contrived as to make it necessary to complete the half turn
before reversing.
When the plug is so placed that this recess is opposite the opening to the vessel
the recess is filled with liquid but at that time there is no connection between the
recess and the outer air. If now the plug be rotated until the recess is opposite the
outlet the measured quantity of liquid will flow out. I prefer usually though it
is not essential to make two equal recesses in the same plug one opposite the
other so that while one is emptying itself the other is being filled. I also find it
advisable to make a small hole in the outside casing of the cock so as to allow air to
reach the recess when emptying itself in order to obtain a steady flow of the liquid.
The top of the passage leading from the plug to the vessel containing the liquid to be
drawn off should have a slightly upward inclination so that the air carried into the
passage by the empty chamber of the plug may readily escape into the vessel. It will
be seen that by using this form of plug an amount of air precisely the same in quantity
as the amount of liquid drawn off is admitted to the vessel each time the tap is turned.
It is not necessary to have any other vent hole or other opening to the vessel except
through the tap left open for the supply of air.
The tap may be worked in any convenient way i.e. rotated or moved backward and
forward and any available means used to check and register the movements.
I will now proceed by means of the accompanying drawings to illustrate my afore-
said invention.
Fig. 1 is a side elevation of the plug or tap the minor details of which can be
varied to suit different requirements without in any way interfering with the objects
of my invention.
The same letters of reference apply to all the figures of the drawings.
Figs. 2 and 3 on the same sheet are respectively a plan and a cross section of the
plug or tap.
a and a represent the two recesses or chambers and are shown of equal size but
can be made of unequal capacities. When the cock c is turned so that the chamber a
is opposite the opening from which the liquid is drawn the liquid flows from the

page_text: vessel through the tube 6 into the aforesaid chamber a¹ filling it and by a backward or
forward or rotary motion of the cock c the chamber a' is brought opposite the nozzle d
consequently allowing of the liquid passing out. A hole e in the outer casing gives a
steady flow to the liquid.
When the chamber a¹ is emptying the chamber a is filling and vice versa.
The plug D is made to fit exactly within the outer casing f. The top part, of the
casing, funscrews from the lower part to allow of the plug D with its chambers a
and a being withdrawn when required.
Fig. 4 sheet 2 is a front elevation of the outer casing.
Figs. 5. 6. 7. 8. 9 and 10 are different views of the plug D and the outer casing of
the cock or tap.
By the aforesaid means I prevent waste in the measuring of liquids and also a
saving of time and by this invention a definite quantity must be drawn off and which
can be registered and checked by any of the known means at present in use.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
First A' method of drawing off from a vessel exact quantities of liquid by
means of two chambers of equal or unequal capacities one of which is filling at
the time the other is emptying substantially as and for the purposes described and
illustrated.
Secondly-In combination with the above claim the use of a small hole e shown in
the accompanying drawings in the outer casing of the tap for the purpose of admitting
air into the aforesaid chambers a and a¹ and consequently giving a steady flow of
the liquid that is drawn off substantially as and for the purposes herein before described
and illustrated.
Thirdly-A method of drawing off liquid from a vessel with no other unsealed
opening than the tap especially applicable to volatile liquids such as ether &c. sub-
stantially as and for the purposes hereinbefore described and illustrated.
Dated this 27th day of August 1890.
GEO. H. TIMMIS.