Museum trails

Polytechnic Roads

1

THE “REgIna MaRgHERITa” THERMal POWER PlanT

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1895

Installed in Egidio and Pio Gavazzi’s silk factory, the power central was utilized for lighting the spaces and powering the operation of the looms. it was inaugurated in 1895 in the presence of Umberto i and Margherita of Savoy, and continued operating until 1950. it consisted of a steam engine with two horizontal cylinders constructed by the Legnano workshop officine Franco Tosi, combined with a pair of alternators produced by Brown Boveri, a leading company in the electromechanical sector.


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2

THE SaVOIa dIESEl EngInE

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1920

This single-cylinder diesel engine had a power output of 60 hp at 30 rpm. Dating from the 1920s, it was donated by the Politecnico di Milano to the Museum in 1970. it was long employed for didactic purposes in the industrial Mechanics Department laboratory, and Giuseppe Colombo also used it for his practical exercises. The reduced number of students in courses at that time allowed the professor to follow each pupil individually.


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3

THE EdISOn dynaMO

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1880s

Originally at Europe’s first thermoelectric power plant, inaugurated in 1883 on Via Santa Radegonda in Milan, in the near vicinity of the Cathedral, where a theater once stood. The power plant was used for producing direct current electric energy for lighting the city and remained active until 1922. The facilities were demolished in 1926, and the Cinema odeon now stands in their place.


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4

THE RIVa SPEEd REgUlaTOR

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1901

Giuseppe Colombo shaped generations of engineers, many of whom went on to found industries in widely varied production sectors, giving an economic boost to italy. Among these were Alberto Riva, who founded Riva, a company best known for its design and construction of hydraulic turbines, and Guido Ucelli, its director. Based on a centrifugal speed sensor, this regulator was patented in 1901.


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