Year: 1888

page_text: I PAUL ORIOLLE fils, of Nantes, France, Engineer do hereby declare the nature of
this invention to be as follows:-
My Invention relates to a combined automatic sprinkler or fire extinguisher and
fire alarm.
The Invention is illustrated in the accompanying drawing forming part of this
specification wherein figures 1, 2, and 3 shew respectively an elevation; vertical
section, and plan, of the apparatus; which consists of a pipe A in communication
with a supply of water under pressure and provided with a perforated cap or rose,
enclosed by a cup valve B held to its seat on pipe A by a lever D having a screw V
which bears on a spring C on the back of the valve whereby the pressure of the valve
upon its seat is regulated. The lever D engages at D¹ with the pipe A while its other
end D is held by a catch E-resting upon a bar G of fusible metal inserted between
them, the catch being formed on a bridle piece engaging by a knife edge E with a
fixed point. The bar G will melt under an undue elevation of temperature, thus
releasing catch E which drops and slips off thus releasing lever D and valve B so as
to allow water to freely escape from the perforated cap or rose X.
The action of the apparatus is dependent upon the form and position of the fusible
bar G, the catch E, and the spring whereby the lever D is caused to hold the valve
perfectly tight until the bar Ġ is completely melted, as if the smallest jet of water
were to prematurely impinge upon the parts G or F the fusion would be arrested and
the valve prevented from completely opening, a shield or guard y being interposed
between the valve and the bar G to protect the latter from any accidental leakage of
water. The spring C thus ensures the complete fusion of the bar G by preventing
the premature opening of the valve and also renders certain its opening at the proper
moment. The form and dimensions of the catch E are such that it cannot engage
the lever D in the absence of the bar G, and in order to render the apparatus
sufficiently sensitive to heat the bridle piece is provided with a thin fin F of large
area which will quickly acquire the temperature of the surrounding air, and the

page_text: catch H bearing against an arm T formed on the pipe A is merely a knife edge in
order to avoid loss of heat by conduction. The length of lever D is such that the
pressure which the fusible bar will have to support shall be much lower than its
coefficient of resistance to compression, this resistance being variable according to
the fusing temperature. The pressure is spread over a long length of bar by making
the ends of catch E and the end of the lever D of considerable breadth.
The fire alarm mechanism is electrical. One pole of the battery is connected to the
water pipe A and the other to stud S carried by a stem passing through an insulating
bush W in the arm T. The stem has an insulating head U which bears against the
lever D and the stud S is thereby normally held out of contact with the arm T, but
on the lever D falling off by the melting of G a spring R confined between head U
and arm T establishes contact between S and T thus closing the circuit through an
alarm whereby the fact of the extinguisher being in action and consequently the
existence of the fire are notified.
The apparatus contains no joints liable to melt, nor any pivots likely to cause
friction or liable to oxidation, all the parts being carried upon knife edges.
P. ORIOLLE, FILS.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: 1, FAUL UNIOLLE, fils, of Nantes, France, 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 :-
My Invention relates to a combined automatic sprinkler or fire extinguisher and
fire alarm.
The Invention is illustrated in the drawing left with my provisional specification,
wherein figures 1, 2, and 3, shew respectively an elevation, vertical section, and plan,
of the apparatus, in which A is a pipe in communication with a supply of water under
pressure and provided with a perforated cap or rose X enclosed by a cup valve B
held to its seat on pipe A by a lever D having a set-screw V which bears on a spring C
on the back of the valve, whereby the pressure of the valve upon its seat is regulated.
The lever D engages at D' with the pipe A while its other end D2 is held by a catch E
resting upon a distance piece G of fusible metal inserted between them, the catch
being formed on a bridle piece engaging by a knife-edge H with a fixed point. The
distance piece G will melt under an undue elevation of temperature, thus allowing
catch E to drop and slip off, and so release lever D and valve B so as to allow water
to freely escape from the perforated cap or rose X.
The action of the apparatus is dependent upon the form and position of the fusible
piece G, the catch E, and the spring whereby the lever D is caused to hold the valve
perfectly tight until the piece G is completely melted. This is necessary, because
if the smallest jet of water were to prematurely impinge upon the parts G or F, the
fusion would be arrested and the valve prevented from completely opening; a shield
or guard y is therefore interposed between the valve and the bar G to protect the
latter from any accidental leakage of water. The spring C thus ensures the
complete fusion of the piece G by preventing the premature opening of the valve and
also renders certain its opening at the proper moment. The form and dimensions of
the catch E are such that it cannot engage the lever D in the absence of the piece G,
and in order to render the apparatus sufficiently sensitive to heat, the bridle piece is
provided with a thin fin F of large area, which will quickly acquire the temperature
of the surrounding air while the catch H of said bridle piece bearing against an
arın T formed on the pipe A is merely a knife edge in order to avoid loss of heat by
conduction. The length of lever D is such that the pressure which the fusible piece
will have to support shall be much less than its resistance to compression, this resistance
being very variable according to the fusing temperature of the metal. The pressure
is spread over a long length, by making the ends of the catch E and the end of the
lever of considerable breadth.
The fire alarm mechanism is electrical. One pole of the battery is connected to
the water pipe A and the other to stud S carried by a stem passing through an
insulating bush W in the arm T. The stem has an insulating head U which bears
against the lever D, and the stud S is thereby normally held out of contact with the
arm T, but on the lever D falling off by the melting of G spring R confined between

page_text: head and arm T establishes contact between S and T, thus closing the circuit
through an alarm whoreby the fact of the extinguisher being in action and consequently
the existence of the fire are notified.
The apparatus contains no joints liable to melt, nor any pivots likely to cause
friction or liable to oxidation, all the parts being carried upon knife-edges.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1st. An automatic apparatus for extinguishing fires, consisting of a valve B,
lever D, bridle piece F, E, and fusible piece G, combined to operate substantially as
herein before described and illustrated in the drawings.
2nd. Tho combination with the herein described automatic fire-extinguisher, of an
electric alarm operated by the release of lever D, substantially as herein described
and illustrated in the drawings.
P. ORIOLLE.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.