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It is fundamental
to search for the perfect musical chord and the homogeneity in
the timbre of voice among the va- rious components in concerts
of three-four-five-six-eight bells and more;
this is the
more important the greater is the number of bells. Innumerous
are the musical accords that may be obtai- ned, and time by time
our firm studies the characteristics of a concert that must suit
the requirements and the parti- cular taste of a place: Several
are also the methods of sound production with bells that swimg
more or less swiftily, by adopting different techniques in setting
the same bells on hubs or support stocks.
As we have
supplied bells all over Italy and the world we are in a position
to abtain all different methods of sound, always offering our
free advice when special circumstances require particular settlements.
With only the indication of the measures of the belfry, we build,
besides the concerto of bells, also the scaffolding in iron and
all fittings which, if sent abroad, find an easy setting with
pictures and explanations supplied by our firm.
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Our exportations have practically reached all countries: Great Britain,
Iceland, France, Germany, Austria, Jugosla- via, Spain, Greece,
Albany, Poland, Hungary, Russia, Mid- dle East, Yapan, China, India,
Philippines, North Africa, Central Africa, North America, Central
America, South America, Oceania. Numberless testimonials of praise,
merits and honours are the best guarantees for a definitely up-to-date
product.
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THE 25 BELLS
CONCERT IN "LA PLATA" CATHEDRAL.
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The
heigth of the bells, included the plait, is like the diameter of base. |
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On
a walnut board perfectly smooth is drawn the profile of the
bell that is wanted. Measure and calculations concerning such
design consti- tute the secret of the foundry handed down
from generation to generation and continuously studied and
modified accor- ding to the most modern requirements in order
to obtain the best musical efficiency. The board drawn and
sawn along the profile is called the model. The mould fexed
suitably to an iron staff running on a gui- de that allows
it a complete turn, gives the shape to the stamp constituted
by refractory bricks tied together by a mixture of clay, water
and other ingredients. In successive operation the mould is
refined to precision and cooked with vegetable coal that allows
it a slow exsicca- tion, without causing cracks in the clay.
When the exact shape of the bell (in clay) is obtained ope-
ratins continue with decoration of the mould with ornaments,
sacred images and inscriptions, all in bee wax, obtained from
artistic engreved tablets of the greatest value.
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The
mould so decorated is covered again with other layers of very pure
clay to form the external part for completion of the working. At
last, the mould in clay emptied internally of the thick- ness corresponding
to the bell, is laid in the ditch, where the casting will take place.
Succesive layers of ground are beaten around theh mould so as to
cover it and to keep it steady in order to avoid displa- cements
of the mould, caused by the weight of the cast bronze and the pressure
of gases.
Succesive layers of ground are beaten around theh mould so as to
cover it and to keep it steady in order to avoid displa- cements
of the mould, caused by the weight of the cast bronze and the pressure
of gases. The material, bronze, is chosen with scrupulous care for
the purity of the very fine alloy as the sound of a bell acqui-
res more or less value in timbre and in diffusiveness depen- dently
upon the quality of the same material. Another fundamental factor,
besides the particular mould of the bell (bendings and proportions
of thicknesses), is the com- bustible employed for the casting.
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Our firm, in fact, employs well- seasoned beechwood because
the flame is completely neu- tral in the combustion, and,
therefore, it does not pollute the bronze, as it happens,
on the contrary, with other burner com- bustibles, such
as fuel oil, gas oil , etc. Of course what has been explained
serves to give an ap- proximate idea of the system of manufacturing,
which is rich of little thecnical espedients and fine points,
acquired with experience.
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