Improved Apparatus for Signalling Deficient Flow of Water and Increase of Temperature in Liquids Flowing Through Tubes and the like.
Year: 1898

page_text: Date of Application, 18th Aug., 1898
Complete Specification Left, 12th Apr., 1899-Accepted, 18th Aug., 1899
PROVISIONAL SPECIFICATION.
Improved Apparatus for Signalling Deficient Flow of Water and
Increase of Temperature in Liquids Flowing Through Tubes and
the like.
I, CARL PAUL KIRSTEN, of No. 48, Schiller Strasse, Chemnitz, Saxony,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to further improvements of the apparatus for indicating
the interruption of the flow of liquids through pipes and the like invented
by me.
If in the case of the cooling apparatus of motors for instance, a deficient quan-
tity of water is supplied, or if the inflow of fresh cooling water should completely
cease, it may happen that the water which exists in the cylinder and in the
housing of the signal apparatus becomes highly heated before the float has
sunk, and the electric alarm apparatus has been actuated, it is therefore pre-
ferable to provide the signal apparatus with a special controlling device such as
a contact thermometer which is connected with the conductor wire of the
electrical signal apparatus, and which will automatically actuate the said
apparatus as soon as the cooling water reaches a fixed temperature, thereby
indicating the danger of any further increase of temperature.
Referring to the accompanying drawing:-
The contact thermometer g can be placed either outside the apparatus
(Figure 2) or inside the same (Figure 3) or in a separate tube or housing f
(Figure 1). In the latter case the form is preferably so chosen that the hous-
ing can be interpolated in the exit tube 21, 22 (Figure 2) of the cooling
mantle and thereby serve as a let-off pipe for the cooling water entering at i
into the housing and flowing away at During its flow through f (Figure 1)
or through the part a of the apparatuses shewn in Figures 2 and 3, the cooling
water surrounds the thermometer g and imparts its warmth to the samé. If
the water as above stated, has reached a certain fixed maximum temperature,
as for instance forty-five degrees, Cent. (Figure 1) then the quicksilver having
risen to this point makes contact with a wire m' commencing there, and con-
nected to the electric conductor, and thus closes the circuit for the alarm
apparatus interpolated between n¹ and n², setting the same in operation. By
means of the above described new arrangement of the apparatus, a double con-
trol is attained when the flow is interrupted and this both with regard to the
quantity as also with regard to the temperature of the fluid passing through the
apparatus.

page_text: Improved Apparatus for Signalling Deficient Flow of Water and
Increase of Temperature in Liquids Flowing Through Tubes and
the like.
I, CARL PAUL KIRSTEN, of No. 48, Schiller Strasse, Chemnitz, Saxony,
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: -
This invention relates to improvements in apparatus for indicating the inter-
ruption of the flow of liquids through pipes and the like.
If in the case of the cooling apparatus of motors for instance, a deficient quan-
tity of water is supplied, or if the inflow of fresh cooling water should completely.
cease, it may happen that the water which exists in the cylinder and in the
housing of the signal apparatus becomes highly heated before the float has
sunk, and the electric alarm apparatus has been actuated, it is therefore pre-
ferable to provide the signal apparatus with a special controlling device such as
a contact thermometer which is connected with the conductor wire of the
electrical signal apparatus, and which will automatically actuate the said
apparatus as soon as the cooling water reaches a fixed temperature, thereby
indicating the danger of any further increase of temperature.
Referring to the drawings filed with the Provisional Application, the contact.
thermometer 9 can be placed either outside the apparatus (Figure 2) or inside
the same (Figure 3) or in a separate tube or housing f (Figure 1). In the
latter case the form is preferably so chosen that the housing f can be inter-
polated in the exit tube i, 22 (Figure 1) of the cooling mantle and thereby serve
as a let-off pipe for the cooling water entering at ¹ into the housing and flowing
away at 2. During its flow through f (Figure 1) or through the part a of the
apparatuses shewn in Figures 2 and 3, the cooling water surrounds the ther-
mometer and imparts its warmth to the same. If the water as above stated,
has reached a certain fixed maximum temperature, as for instance forty-five
degrees Centigrade (Figure 1), then the quicksilver having arisen to this point
makes contact with a wire m¹ commencing there, and connected to the electric
conductor, and thus closes the circuit for the alarm apparatus interpolated
between n¹ and n³, setting the same in operation. By means of the above
described new arrangement of the apparatus, a double control is attained when
the flow is interrupted and this both with regard to the quantity as also with
regard to the temperature of the fluid passing through the apparatus.
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:
1. The improved apparatus for signalling an interruption of the flow of liquids.
through tubes and the like, consisting essentially of a contact thermometer
connected either to the signalling apparatus or placed in a special receptacle in
connection therewith, said contact thermometer being arranged to be heated
by the fluid passing through the apparatus or the receptacle aforesaid, and thus
establishing at a given temperature the electric circuit through a signalling
device, substantially as described.
2. The improved apparatus for signalling interruptions in the flow of liquid

page_text: through tubes and the like, constructed and operating substantially as described
with reference to the accompanying drawing.
Dated this 12th day of April 1899.
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester and Birmingham.