IMPROVEMENTS IN THE CONSTRUCTION OF FIRE, HEATING AND OTHER PIPES OR TUBES
Year: 1883

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PROVISIONAL SPECIFICATION left by Edwin Ambrose Brydges at the
Office of the Commissioners of Patents on the 12th November 1883. Com-:
municated to him by Georg Sokoff of the town of Janpol Government
Tschernigow. Russia..
EDWIN AMBROSE BRYDGES of the firm of Brydges & Co Engineers & Patent
Solicitors of 107" Königgrätzer Strasse in the City of Berlin and German
Empire. IMPROVEMENTS IN THE CONSTRUCTION OF FIRE, HEATING AND OTHER
PIPES OR TUBES" a communication to me by Georg Sokoff of the town of
Janpol Government Tschernigow Russia
This invention relates to improvements in the construction of fire, heating and
other pipes or tubes, the object of which said invention is to considerably augment
the heating surface of fire, heating and warming pipes or tubes without increasing
the diameter of the same
This purpose is attained by employing a compound tube or pipe instead of the.
ordinary tubes or pipes made of one piece-Each of my said improved tubes or
pipes is made of two half or half round tubes or pipes which said halves are
arranged at a suitable distance from each other.
The diameter of one kind of compound tube is 570 millimetre or about
22 inches which consist of two half tubes or pipes which are arranged about
10 / or inch apart although it is obvious that the diameter of the tubes or
pipes and the space between the same can be varied according to the purpose to
which the said tubes or pipes are to be applied
m
It is evident that the connection between the parts of the double or compound
pipe or tube can be modified in various ways without departing from the tenor of
my invention which consists in the construction of compound fire, beating or
warming tubes or pipes with two smoke, steam, hot air or hot water canals
which said balf round tubes or pipes are so connected with each other that a free
space remains between the same for the circulation of the fluid to be evaporated or
the air to be warmed.
The connection consists of a metallic _ formed piece or part which is
inserted at each end between the half tubes or pipes and is securely soldered to
the same.

page_text: Or instead of employing the connecting pieces, the space at the ends of the half
tubes or pipes can be closed by casting in suitable metal alloy, or the parts can be
made of one piece with the compound tubes or pipes when same are of cast metal.
The ends of the said compound tubes or pipes are filed and turned off irrespective
of the manner in which they are manufactured, so that they can be employed in
tubular boilers, evaporating and other apparatus in the place of the ordinary fire or
steam pipes or tubes. The half tubes or pipes can also be soldered to a suitable
ring-In this case a piece of metal is soldered in between the half tubes or pipes
after which the parts so connected are soldered into the ring.
It is evident that the formed piece can also be employed for this purpose
or the corresponding space be closed by casting the same full with a suitable alloy.
If my improved compound tubes are to be employed as substitutes for tubes or
pipes made on the old system, the exterior diameter of the rings must be the same
as the outer diameter of the old pipes or tubes.
The connection between the half round tubes or pipes and their connection with
the rings or muffs can be effected in such manner that the outer diameter of the
finished fitted pipe or tube and the rings are equal.
In this case a partition is inserted between the ends of the two half-round tubes
or pipes of like thickness with the space between the said two tubes or pipes to
which the said partition is soldered
The ends of the tubes or pipes and the soldered in partition are now conically
turned off and then inserted in the conically turned out end of a piece of piping
or tubing of like diameter with the said compound pipe or tube and firmly soldered
into the same.
The compound tubes described above can be made of various kinds of metal
such as Iron, brass, etc and be drawn or soldered or for many purposes they can
be cast of one piece with the parts for holding the said tubes or pipes at a certain
distance from each other from cast iron or a copper alloy-In the case of long pipes
or tubes, blocks can be employed to keep the half-round tubes or pipes at suitable
distance from each other.
It is obvious that these pipes or tubes can be connected with each other by
means of flanges, muffs or other kind of connection-The pipes or tubes constructed
on the above described system can be employed in all cases where an enlargement
of the heating surface is desired and prove specially advantageous when the
heating surface is to be increased without having to pull down and rebuild the
apparatus for instance in the evaporating apparatus for sugar factories.-In this
manner the costs of erecting a subsiduary apparatus and also space is saved whereas
new apparatus with like large heating surface can be made in much smaller
dimensions and at considerably less expense