Search Results - RERO DOC

Blued steel sheets : history, manufacturing and conservation : The case of a Ganz & Co projection and enlargement lantern conserved at the Collection Centre of the Swiss National Museum

Lefebvre, Alexandra

Mémoire de master : Haute Ecole Arc Conservation-Restauration, 2021.

The Collections Centre of the Swiss National Museum, located in Affoltern-am-Albis, in the canton of Zurich, conserves a projection and enlargement lantern designed by a well-known local company selling projection and photography equipment. This device, dated from the early 20th century, has the particularity of having its lantern made of blued steel. This surface treatment offering both...

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Make it work? : The restoration of a Green Ray Television Wonder, a 1930s Fortune-teller slot machine from the Deutsches Technikmuseum berlin

Duc, Augustin

Mémoire de master : Haute Ecole Arc Conservation-Restauration, 2020.

In this work we are interested in the restoration of a Green Ray Television Wonder belonging to the Deutsches Technikmuseum in Berlin. It is a coin-operated automaton from the 1930s which supposedly allows the user's mind to be "read" by means of television technology. This object is part of the technical heritage, more precisely electromechanical; conservation-restoration professionals are...

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Conservation of charred archaeological textiles

Ramírez Calderón, Andrea

Mémoire de master : Haute Ecole Arc Conservation-Restauration, 2018.

Archaeological textiles that were carbonised prior to their burial often survived to the present days. They are particularly friable and in recent years research has focused on the combination of consolidants and lubricants for their freeze-drying treatment. For this master thesis, consolidation tests were carried out on wet charred archaeological samples from the late medieval archaeological...

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Investigation into the potential of low-oxygen and dry/cold storage for freshly excavated iron artifacts

Guggenheimer, Salome

Mémoire de diplôme HES : Haute Ecole Arc Conservation-Restauration, 2006.

Once archaeological iron artifacts are excavated their protective environment is lost. On exposure to the air the objects can dry out and the earthy as well as the corrosion layers become permeable due to the formation of cracks and fissures. Moisture from the air and oxygen get access to the objects. If chlorides are present in the corrosion layers and metallic iron remains in the artifact,...