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| Paternoster | |
|---|---|
| Name | Paternoster |
| Type | Lift |
| Invented | 1920s |
Paternoster
A paternoster is a continuous-chain passenger elevator consisting of open compartments that move slowly in a loop, allowing passengers to step on and off at each floor without the cabin stopping. Originating in early 20th-century Europe, the device became notable in Germany, Czech Republic, and the United Kingdom for providing high-capacity vertical circulation in public and institutional buildings. Paternosters intersect with the histories of industrialization, urbanization, building codes, and the work of engineers associated with firms such as Otis Elevator Company and Schindler Group.
The name derives from the Latin phrase "Pater noster", historically associated with the Lord's Prayer used in Christianity, and was applied metaphorically to a chain of prayers recited on a loop like beads on a rosary associated with Catholic Church practices. Early popular descriptions referenced clerical contexts such as Vatican City and devotional objects like the rosary, while commentators compared the circulating cups to repetitive sequences in industrial machinery designs. The term became embedded in vernacular usage across Germany, United Kingdom, and the Czech Republic when journalists and engineers described the mechanism in periodicals tied to institutions like Imperial College London and municipal authorities in Berlin.
Precursors to the paternoster appear in studies of continuous lift concepts by engineers linked to companies such as Otis Elevator Company and inventors working in Vienna and Berlin during the late 19th century. The first commercial installations emerged in the 1920s and 1930s amid rapid building programs in cities like London, Prague, and Hamburg. Notable examples were installed in administrative centers and universities tied to institutions such as University of Oxford, Charles University, and municipal buildings administered by authorities in Munich and Leipzig. Over subsequent decades similar systems were built in corporate headquarters of firms including Siemens and cultural venues like theaters associated with the Royal Opera House.
Post-World War II debates about modernization, safety, and accessibility led to divergent regulatory responses across nations including United Kingdom, Germany, and the Netherlands. In some places older installations were preserved as functional heritage in buildings managed by organizations such as English Heritage and municipal trusts in Prague; in others they were decommissioned under directives influenced by agencies like the Health and Safety Executive and standards bodies in Brussels associated with the European Union.
A paternoster employs a continuous loop of compartments attached to two moving chains or belts driven by electric motors from manufacturers such as Siemens or legacy workshops connected to Schindler Group and ThyssenKrupp. Compartments travel at low speed around the loop, pass openings at each floor, and reverse in concealed shafts above and below the served floors, akin to mechanisms described in patents held by inventors active in Berlin and Vienna in the early 20th century. Control systems historically relied on electromechanical relays developed by firms like AEG and later retrofitted with components from Siemens and Bosch.
Operational practice required passengers to synchronize steps with the continuously moving compartment, a technique taught informally at institutions such as Imperial College London and in workplace inductions at corporate sites like BBC offices and banks associated with Barclays. Architectural integration often involved stairwells and circulation plans by architects trained at academies such as the Royal Institute of British Architects and design studios influenced by the Bauhaus movement.
Variants include designs for freight compartments used in warehouses owned by firms like Marks & Spencer and postal hubs associated with national services such as Royal Mail. Smaller domestic-style installations were trialed in residential blocks commissioned by municipal authorities in Prague and Berlin, while specialized versions served libraries at institutions like Trinity College Dublin and archive repositories in municipal buildings in Stockholm. Adaptations for heavy goods used reinforced carriages and drive systems similar to those employed by industrial elevators for manufacturers like Siemens.
Uses expanded into settings such as corporate headquarters for banks like Deutsche Bank, university buildings at University of Cambridge, and government ministries in capitals including Warsaw and Brussels. Preservation-minded operators sometimes highlight functioning examples in museums associated with organizations like the Science Museum, London and municipal heritage tours in Prague.
Safety concerns center on entrapment, falls between compartments and floor openings, and risks to children and mobility-impaired people. Regulatory agencies such as the Health and Safety Executive in the United Kingdom, the Bundesministerium für Verkehr in Germany, and EU institutions have issued guidance impacting installation and operation. Many jurisdictions require periodic inspections by accredited bodies like those certified under standards influenced by European Committee for Standardization and directives negotiated in Brussels.
Mitigations include physical guards, call systems, interlocks supplied by manufacturers like Schindler Group, and signage mandated by municipal building departments in cities such as London and Berlin. Where risks could not be sufficiently controlled, owners closed or replaced systems with conventional lifts produced by companies such as Otis Elevator Company and KONE.
The device appears in visual and literary culture associated with 20th-century Europe: film scenes shot in city centers like Berlin and Prague, novels set in administrative buildings tied to institutions like University of Oxford and Charles University, and photographic essays curated by museums such as the Victoria and Albert Museum. References occur in period journalism in newspapers like The Times and in broadcasts by organizations such as the BBC. Contemporary preservation debates invoke heritage bodies including English Heritage and municipal councils in Prague and Berlin.