Hans Hilfiker

Hilfiker began working for Albiswerk Zürich, a Siemens production plant in 1925. He was transferred to Argentina in 1926 and became technical advisor to the telecommunications troops of the Argentine Army until 1928. His tasks included building workshops and mobile telephone exchanges, while also training telecommunications non-commissioned officers. As a senior engineer, he was involved in the construction of the Buenos Aires - Rosario telephone line through the Paraná River in 1929. He planned a submarine cable running through the Río de la Plata to connect the Argentine and Uruguayan capitals in 1930. The same year, Hilfiker was transferred to Berlin and trained for the role of operating a Siemens subsidiary in Argentina. The plan however did not materialize and Hilfiker returned to Switzerland in 1931.[4]

Virtual clock

Hilfiker joined the Swiss Federal Railways (SBB) as an engineer in construction department III in 1932.[5] In his first year, he developed the first iteration of the later iconic Swiss railway clock. The version which was first displayed at the Bahnhofplatz (plaza) adjacent of Zürich Hauptbahnhof (Zürich Central Station) lacked the 'minute' and 'second' hands.[6] Hilfiker would improve upon the design with the addition of a 'minute' hand in 1943. The following year, the SBB replaced all its clocks across the country in an effort to have a consistent clock face, which were all synchronized by a master clock linked to the telephone network.[6] Hilfiker became deputy head of the construction department and head of the fixed electrical systems services. Among other things, he also designed a gantry crane[5] to load heavy goods from the road onto the rail, the platform roof for Winterthur Grüze station, and a timetable projector for the Zurich station.[7]

In 1955, Hilfiker launched the final iteration of the Swiss railway clock, which had been in development since 1952. A 'second' hand resembling a red signalling disk was added, which would pause slightly at the twelve o'clock mark, before jumping forward with the minute hand (see illustration). It became an international icon.[6]

Between 1958 and 1968, Hilfike was a director of Therma AG located in Schwanden of the canton of Glarus. He developed a completely new kitchen range for Therma that consisted of modules that could be combined with one another.[8] Until then, Therma had been producing standalone devices. With these system kitchens, he laid the foundation for the Swiss kitchen standard SINK (Swiss Industrial Commission for the Standardization of Kitchens), which deviated from the European one (width 55 instead of 60 cm).[9] A prototype based on this standard was shown at the EXPO 1964 in Lausanne.[10] Hilfiker created an actual corporate design for Therma and restructured the manufacturing processes for the new fitted kitchens.[9]