Arturo Caprotti
Arturo Caprotti (22 March 1881 – 9 February 1938) was an Italian engineer and architect. In 1915 or 1916 he invented the Caprotti valve gear rotary cam poppet valve gear for steam engines of all kinds, but in practice it was employed almost exclusively in railway locomotives.
Arturo Caprotti
Moscazzano3.jpg: Cremasco derivative work: Alupus (talk) · Moscazzano3.jpg · CC BY 3.0
- Name
- Arturo Caprotti
- Born
- 22 March 1881
- Died
- 9 February 1938
- Occupation
- Engineer, architect
- Nationality
- Kingdom of Italy
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Arturo Caprotti (22 March 1881 – 9 February 1938) was an Italian engineer and architect. In 1915 or 1916 he invented the Caprotti valve gear rotary cam poppet valve gear for steam engines of all kinds, but in practice it was employed almost exclusively in railway locomotives.
Admitted source layer · organised and presented by VALÉORINE
Reference Check
Propose documentary evidence for Arturo Caprotti. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
World of VALÉORINE
Documentary connections
Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.
Documentary evidence
Documentary basis
Authority files
wikidata · Q715168 · wikipedia · Arturo Caprotti
In this article
Key facts
Key facts
• Name — Arturo Caprotti • Born — 22 March 1881 • Died — 9 February 1938 • Occupation — Engineer, architect • Illustration — Plaque on the birthplace of Arturo Caprotti
Zeichnung einer Caprotti-Steuerung: oben: Längsschnitt durch die Einlassventile mitte: Grundriss der Steuerwelle mit der Nockenverstellung unten links: Nocke zur Steuerung des Einlassendes unten rechts: Scheibe zum Verdrehen der Nocke für den Einlassbeginn Legende a Nockenwelle mit Steilgewinde b Nocke zur Steuerung des Einlassendes c Nocke zur Steuerung des Einlassanfangs d Nocke zur Steuerung de
Heinrich Dubbel (1923): Die Steuerungen der Dampfmaschinen, p. 282
Schnitt durch ein Einlassventil einer Dampfmaschine mit Caprotti-Steuerung.
M. Touvert (1937): Un Nouvel Exempla de Distribution à Soupapes à Phases Indépendantes, Revue générale des chemins de fer, Paris, p.232 Fig.6
Life and career
Dated record
Life and career
The full dated record · 2 entries
1881
Arturo Caprotti was born in 1881 at Moscazzano.
1938
Arturo Caprotti died in 1938 at Milan.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Moscazzano.
Birth place
Milan.
Death place
Primary material
Documents and archives
reference work
- “Arturo Caprotti”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority record
- Wikidata, structured authority record Q715168: Arturo Caprotti
General reference · Wikidata
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.der Gemeinde Moscazzano
- 2.M. Gaudiano: Arturo Caprotti im Dizionario Biografico degli Italiani.
- 3.Lorenza Caprotti: auf luccaterre.it
- 4.Lorenza Caprotti: sowie auf luccaterre.it
- 5.Siehe Fotografie.
- 6.Henschel-Hefte 2/1930
- 7.Beitrag von Werner Boy in: Alfred B. Gottwaldt: Geschichte der deutschen Einheitslokomotiven. Die Dampflokomotiven der Reichsbahn und ihre Konstrukteure. Franckh’sche Verlagshandlung, Stuttgart 1978, Reprint Kosmos, Stuttgart 1999, ISBN 3-440-07941-4, S. 77
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witnessauthority record
General reference
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
Elsewhere in Design
11,558 published records in this field, each with its sources named.
- Artur GüntherDesigner
- Artur SchwarzDesigner
- Artūras SkučasDesigner
- Arturo Bianchi GundiánDesigner
- Arturo CucciollaDesigner
- Arturo Dell'Acqua BellavitisDesigner
- Arturo Robledo OcampoDesigner
- Arturo Soria y MataDesigner
Best supported in this field
For owners
Own a work by Arturo Caprotti?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.