In 1901, Luís Couto dos Santos, a civil engineer, rented no. 21 in the Fogueteiros Street to install his tinsmith workshops. In this same year, he opened the Electra Factory, specialized in the electricity powered production of hospital equipment. In the project's drawing can be seen the plan, elevations and sections of the factory, as well as its location – between the Virtudes Estate and the street that goes up to the Largo do Viriato, from where the main entrance was made and where now stands a wall and a gate to the public garden.