AN IM- PROVED GAS REGULATOR DESIGNED FOR THE PURPOSE OF BEING APPLIED TO BURNERS OF EVERY DESCRIPTION WITHOUT ALTERING THE ORIGINAL APPEARANCE OF THE FITTINGS
Year: 1876

page_text: LETTERS PATENT to Albert Edouard Vandendriesche, of George Yard, Lombard
Street, in the County of Middlesex, Merchant, for the Invention of "AN IM-
PROVED GAS REGULATOR DESIGNED FOR THE PURPOSE OF BEING APPLIED TO
BURNERS OF EVERY DESCRIPTION WITHOUT ALTERING THE ORIGINAL APPEARANCE
OF THE FITTINGS." A communication from abroad by Mr. Paul Charles Joseph
Léonce de Combettes, of Paris, in the Republic of France, Civil Engineer,
92 Rue de Bondv.
Sealed the 13th April 1877, and dated the 19th October 1876.
PROVISIONAL SPECIFICATION left by the said Albert Edouard Vandendriesche
at the Office of the Commssioners of Patents on the 19th October 1876.
ALBERT EDOUARD VANDENDRIESCHE, of George Yard, Lombard Street, in the
County of Middlesex, Merchant. "AN IMPROVED GAS REGULATOR DESIGNED FOR
THE PURPOSE OF BEING APPLIED TO BURNERS OF EVERY DESCRIPTION WITHOut
ALTERING THE ORIGINAL APPEARANCE OF THE FITTINGS." A communication from
abroad by Mr. Paul Charles Joseph Léonce de Combettes, of Paris, in the Republic
of France, Civil Engineer, 92, Rue de Bondy.
This Invention is designed for the purpose of regulating the volume and con-
sumption of gas brought to the burner, and of enabling the consumer to check the
escape and to regulate, once for all, the maximum height or intensity of the flame
according to his wish, thus avoiding the enormous waste caused by high and
irregular pressure, and all its objectionable results.
The Invention consists of a small apparatus, which is introduced into the gas
pipes at any part; it is invisible from the outside, and consequently can be applied
to any kind of burner, as it does not in any way alter the appearance of the
fittings, nor raise the burner above its original position, as is the case with most
regulators.
The regulator is made according to the size required by the inside diameter of
the gas pipe for which it is intended. It is composed of two pieces fitting into
each other, as seen in the longitudinal section, Fig. 1.
The outer piece B is hollow, and at one end is partially closed, leaving only an
opening O. The inner piece A screwed inside B, is pointed at its end P, it is also
hollow, but not throughout, the cavity D, D, communicating with the hollow

page_text: portion of the piece B through an opening C cut on the side of the piece A. The
point P fits in the hole O, partially closing it. The gas is compelled to pass through
the apparatus, following the direction of the arrow (Fig. 1), and it is evident that
the more the piece A is screwed down into B the smaller O becomes, the greater
is the friction, and the less gas passes through the aperture; the quantity of gas
consumed may thus be regulated as desired.
Figs. 2 and 3 show the mode of adapting the regulator to the gas burner. It
may, of course, be applied to any kind of burner and placed near it, as seen in R
(Fig. 2), or at the next joint, as in G (Figs. 2 and 3), or at any other place, even
inside the tap in H (Fig. 2), in which case it might be necessary to file off the pro-
jecting portion of the piece B (Fig. 1).
To regulate the apparatus the meter is opened to the full, as well as the burner,
at the time of full pressure. The piece A is screwed or unscrewed until the flame
attains the desired height or intensity, and the peculiar noise known as roaring or
whistling disappears. The smoking is suppressed, and this is very easily seen in
the case of burners having a glass chimney. As regards the latter the regulator is
further very effective in preventing breakage.
It is evident that the regulator may be constructed in several ways, for instance,
the piece A instead of being hollow could be solid, and one or several channels cut
on its outside so as to allow the gas to escape between A and B, the point P
closing more or less the aperture O, the passage of the gas would be equally well
regulated.
Also the screw on the pieces A and B may be dispensed with, and these pieces
made to fit and slide inside each other. The hole O need not be in the centre
of the piece B, and the lower part of A being flat instead of pointed the opening C
might be at the end of D instead of at the side. In this manner by turning A
inside B, and making it slide up or down, the two holes O and C would correspond,
but leave an opening more or less large, which would regulate the escape of
the gas.
Having described the nature of the said Invention, and the manner in which
it is to be used, I would remark that it is not limited to the precise details and
construction I have given, as the same may obviously be varied or modified without
departing from the principles and objects first mentioned, viz., the control of the
consumer over the escape of the gas by means of an apparatus placed inside the
pipe itself, and which requiring no modification whatever of the fittings is of a
universal use.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Albert Edouard Vandendriesche in the Great Seal Patent Office on
the 17th April 1877.
ALBERT EDOUARD VANDENDRIESCHE, of George Yard, Lombard Street, in the
County of Middlesex, Merchant. "AN IMPROVED GAS REGULATOR DESIGNED FOR
THE PURPOSE OF BEING APPLIED TO BURNERS OF EVERY DESCRIPTION WITHOUT
ALTERING THE ORIGINAL APPEARANCE OF THE FITTINGS." A communication from
abroad by Mr. Paul Charles Joseph Léonce de Combettes, of Paris, in the Republic
of France, Civil Engineer, 92, Rue de Bondy.
This Invention is designed for the purpose of regulating the volume and con-
sumption of gas brought to the burner, and of enabling the consumer to check the
escape and to regulate once for all the maximum height or intensity of the flame
acccording to his wish, thus avoiding the enormous waste caused by high and
irregular pressure, and all its objectionable results.
The Invention consists of a small apparatus, which is introduced into the gas
pipes or fittings at any part; it is invisible from the outside, and consequently can

page_text: be applied to any kind of burner, as it does not in any way alter the appearance of
the fittings, nor raise the burner above its original position as is the case with most
regulators.
The regulator is made according to the size required by the inside diameter of
the gas pipe or fittings for which it is intended. It is composed of two pieces
fitting into each other, as seen in the longitudinal section, Fig. 1, of the accompanying
Drawing.
The outer piece B is hollow, and at one end is partially closed, leaving only an
opening O. The inner piece A screwed inside B is pointed at its end P; it is also
hollow, but not throughout, the cavity D, D, communicating with the hollow portion
of the piece B through an opening C cut on the side of the piece A. The point P
fits in the aperture O, partially closing it. The gas is compelled to pass through
the apparatus, following the direction of the arrow, and it is evident that the more
the piece A is screwed down into B the smaller O becomes, the greater is the
friction, and the less gas passes through the aperture. The quantity of gas con-
sumed may thus be regulated as desired.
Figs. 2 and 3 show the mode of adapting the regulator to the gas burner. It
may of course be applied to any kind of burner and placed near it, as seen in R,
Fig. 2, or at the next joint, as in G (Figs. 2 and 3), or at any other place, even
inside the tap in H (Fig. 2), in which case it might be necessary to file off the pro-
jecting portion of the piece B (Fig. 1).
To regulate the apparatus the meter is opened to the full, as well as the tap of
the burner, at the time of full pressure. The piece A is screwed or unscrewed until
the flame attains the desired height or intensity, and the peculiar noise known as
roaring or whistling disappears. The smoking is suppressed, and this is very easily
seen in the case of burners having a glass chimney. As regards the latter the
regulator is further very effective in preventing breakage.
One of the great advantages of this regulator consists in its enabling the pro-
prietors of large establishments having many gas burners in different situations to
regulate the consumption throughout the premises in spite of the causes which
generally check or accelerate the escape (independently of the size of the burners),
such as the situation of the burners as regards the meter, the diameter of the different
pipes, and their position in the upper or lower floors. Light may thus be distri-
buted exactly as required, and the gas consumed with an intelligent economy in
places where the consumption is in general dependent on changes of pressure, and
on careless or ignorant persons who have access to the taps.
It is evident that the regulator may be constructed in several ways, for instance,
the piece A instead of being hollow may be solid, and one or several channels cut
on its outside, so as to allow the gas to escape between A and B, the point P
closing more or less the aperture O, the passage of the gas would be equally well
regulated.
Also the screw on the pieces A and B may be dispensed with, and these pieces
made to fit and slide inside each other. The hole O need not be in the centre of
the piece B, and the lower part of A being flat instead of pointed the opening C
might be at the end of D instead of at the side. In this manner by turning A
inside B, and by making it slide up or down, the two holes O and C would corre-
spond, but leave an opening more or less large, which would regulate the escape of
the gas.
Having thus described the nature of this Invention, and the manner of per-
forming or carrying the same into practice, I would remark that I do not limit
inyself to the precise details and method of construction herein described, as the
same may be varied or modified without departing from the principles and objects
of the Invention; but what I consider to be novel and original, and therefore
claim as the Invention secured to me by the herein-before recited Letters Patent
is, the improved arrangement and construction of a gas regulator placed inside the
gas pipes or fittings either under the burner or at any joint of the said pipes or

page_text: fittings, thus making the regulating apparatus applicable to all patterns of burners
without necessitating external alterations or modifications of the fittings.
In witness whereof, I, the said Albert Edouard Vandendriesche, have here-
unto set my hand and seal, this Seventeenth day of April, in the year of
our Lord One thousand eight hundred and seventy-seven.
Witness,
G. G. S. MACPHERSON,
Merchant,
8, George Yard,
Lombard Street,
London.
A. VANDENDRIESCHE. (L.S.)