An Improved Vapour Lamp for Soldering and like purposes.
Year: 1898

page_text: Date of Application, 14th May, 1898
An Improved Vapour Lamp for Soldering and like purposes.
A communication by Messrs. BRIQUET AND DE RAET, of Brussels, in the King-
dom of Belgium, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester,
both in the County of Lancaster, 118, New Street, Birmingham, in the County
of Warwick, and 322, High Holborn, in the County of Middlesex, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
The arrangement of vapour lamp for soldering and like purposes which forms
the object of the present invention enables ordinary lamp petroleum to be used
successfully in soldering lamps in the same way as spirit, that is to say by
means of the said arrangement a perfect working is obtained exempt from any
obstruction, whilst in similar apparatuses at present employed the working
ceases after a short period of use, sometimes of a few hours and even in some
cases after one hour's working. This suspension is not merely temporary but
continuous as it is not generally possible to set the lamp again in action.
This arises from the fact that, in the apparatuses at present employed, the gas
forming passage leading from the reservoir and mounted in the hood becomes
filled with liquid petroleum under the pressure of the air pump which causes a
preliminary distillation of the petroleum thus brought directly under the influ-
ence of the flame of the central burner, thereby causing a separation of the tar
which dries little by little on the internal walls of the passage and on becoming
hard stops said passage entirely and irremediably without the possibility of
unstopping it in a short time.
The invention will be described with reference to the accompanying drawings,
in which,
Figure 1 is a side elevation;
Figure 2, a longitudinal section of the hood for producing the gas; and
Figure 3 a rear view of the latter.
The improved lamp radically obviates the aforesaid drawback by such an
arrangement of the gas producing passage that the petroleum arrives in
the part in contact with the flame already in a gaseous condition, or at
least in a state of such fluidity that distillation is no longer produced, and
that the vapourisation is as perfect as in the case of spirit: that is to
Bay instead of causing a thickening of the petroleum in the passage under
the action of heat it is progressively and homogeneously fluidified without dis-
associating its constituents which are thus together brought into a gaseous con-
dition, and hence there is an absolute impossibility of deposition and a continuous
perfect working of the lamp is ensured.
This result is attained by the combination with the gas producing passage C
of a spiral coil S, preferably of less diameter, which is wound a certain number

page_text: of turns round the hood P and of which the admission arm a and the discharge
arme are connected with the gas producing passage C below, and above a
partition c dividing the passage into two separate parts at that portion of it
which is exterior of the hood P above the petroleum reservoir R.
The working will now be easily seen from the foregoing explanation. By
actuating an air pump A, petroleum is lifted or raised against the partition e and
through the pipe a into the coil S in which it undergoes a progressive heating
which fluidifies it homogeneously as it travels through it to the discharge pipe
above the partition where it passes into the gas forming passage C in the desired
density in order to be totally gasified under the action of the flame of the
burner B which raises the passage C to a dull red heat so that the lamp works
absolutely as if it were fed by spirit.
It may be added for the object of better bringing forward the character of the
invention that the combination of the external coil and the internal passage
is indispensable for obtaining the result hereinbefore described seeing that neither
the use of the coil S without the passage C nor the use of a single gasifying
passage C without the equivalent coil S enables it to be realised.
1000
A communication by Messrs. BRIQUET AND DE RAET, of Brussels, in the King-
dom of Belgium, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester,
both in the County of Lancaster, 118, New Street, Birmingham, in the County
of Warwick, and 322, High Holborn, in the County of Middlesex, Civil 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 arrangement of vapour lamp for soldering and like purposes which forms
the object of the present invention enables ordinary lamp petroleum to be used
successfully in soldering lamps in the same way as spirit, that is to say by
means of the said arrangement a perfect working is obtained exempt from any
obstruction, whilst in similar apparatuses at present employed the working
ceases after a short period of use, sometimes of a few hours and even in some
cases after one hour's working. This suspension is not merely temporary but
continuous as it is not generally possible to set the lamp again in action.
This arises from the fact that, in the apparatuses at present employed, the gas
forming passage leading from the reservoir and mounted in the hood becomes
filled with liquid petroleum under the pressure of the air pump which causes a
preliminary distillation of the petroleum thus brought directly under the influ-
ence of the flame of the central burner, thereby causing a separation of the tar
which dries little by little on the internal walls of the passage and on becoming
hard stops said passage entirely and irremediably without the possibility of
unstopping it in a short time.
The invention will be described with reference to the drawings accompanying
the Provisional Specification in which,

page_text: Figure 1 is a side elevation;
Figure 2 a longitudinal section of the hood for producing the gas; and
Figure 3 a rear view of the latter.
The improved lamp radically obviates the aforesaid drawback by such an
arrangement of the gas producing passage that the petroleum arrives in
the part in contact with the flame already in а gaseous condition, or at
least in a state of such fluidity that distillation is no longer produced, and
that the vapourisation is as perfect as in the case of spirit; that is to
say instead of causing a thickening of the petroleum in the passage under
the action of heat it is progressively and homogeneously fluidified without dis-
associating its constituents which are thus together brought into a gaseous con-
dition, and hence there is an absolute impossibility of deposition and a continuous
perfect working of the lamp is ensured.
This result is attained by the combination with the gas producing passage
of a spiral coil S, preferably of less diameter, which is wound a certain number
of turns round the hood P and of which the admission arm a and the discharge
arm are connected with the gas producing passage C below, and above a
partition c dividing the passage C into two separate parts at that portion of it
which is exterior of the hood P above the petroleum reservoir R.
The working will now be easily seen from the foregoing explanation. By
actuating an air pump A, petroleum is lifted or raised against the partition e and
through the pipe a into the coil $ in which it undergoes a progressive heating
which fluidifies it homogeneously as it travels through it to the discharge pipe e
above the partition c where it passes into the gas forming passage C in the desired
density in order to be totally gasified under the action of the flame of the
burner B which raises the passage C to a dull red heat so that the lamp works
absolutely as if it were fed by spirit.
It may be added for the object of better bringing forward the character of the
invention that the combination of the external coil and the internal passage
is indispensable for obtaining the result hereinbefore described seeing that neither
the use of the coil S without the passage C nor the use of a single gasifying
passage C without the equivalent coil S enables it to be realised.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondents, I declare that what I claim is:
A vapour lamp for soldering and like purposes enabling lamp petroleum to
be used, characterised by the combination of a gas producing passage (C) divided
into two parts by a partition (c) inside the hood (P), and a coil (S) or equivalent
passage wound externally round the hood (P) and connecting with one arm a
below and with the other arm e above said partition (c) in the gas producing
passage arranged in the interior of the hood, with the object of progressively
and homogeneously fluidifying the petroleum and bringing it to a degree of
density insuring its integral conversion into gas in the passage (C) substantially
as hereinbefore described and shown as as example in the drawings accompany-
ing the Provisional Specification.
Tata thin 1
T
1
1000
WM. P. THOMPSON & Co.,
Agents.