The steering engine patented by Joseph Farcot enabled a single helmsman to control a ship's rudder weighing several tons using minimal physical force. By implementing a feedback loop in his 1859 servo-motor design, he created a mechanism that used the rudder's own position to regulate the steam flow to a control piston.
Early Development and Industrial Expansion
Born in Paris in 1824, Joseph Farcot followed the path of his father, Marie-Joseph Farcot, who was also an engineer. After receiving his diploma from the École Centrale Paris in 1845, Farcot joined the family firm. In 1846, his father relocated the business to a site in Saint-Ouen near the Seine, eventually expanding the facilities to cover nearly four hectares. Farcot took charge of the research department in 1848, overseeing production that included boilers, pumps, electrical machines, and steam engines. The factory workforce grew from 145 employees in 1849 to between 500 and 700 workers by the late 19th century.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →Technological Innovations and Exposition Success
Farcot was a prolific inventor, securing numerous patents for steam engine components, cranes, and regulators. At the International Exposition of 1867 in Paris, the Maison Farcot received the Grand Prix pour mérite hors ligne for its machinery, much of which Farcot had personally designed. The company demonstrated high-performance equipment, including two 80-horsepower horizontal steam engines and specialized Woolf pumps used to transport water from the Seine to reservoirs in Ménilmontant. His 1878 exhibition entry, an automatic variable expansion-gear, offered precise control over steam cut-offs.
Advancements in Control Systems
Much of Farcot's research focused on improving the reliability of steam engine governors. While James Watt had pioneered the centrifugal speed regulator, Farcot refined these devices to address inherent power limitations and instability. Alongside his father, he developed various hydraulic and pneumatic regulators, including the crossed-arm governor and spring-loaded models. His work on steering engines culminated in the 1873 publication, Le servo-moteur ou moteur asservi, which documented the technical principles behind the steering of ships like the Bélier, where a small input from the operator could move a massive load.
Professional Legacy
Throughout his career, Farcot filed hundreds of patent applications. In 1879, he served as the president of the Society of Civil Engineers of France. His contributions to engineering were recognized with the Plumey prize in 1875 and an appointment as an Officer of the Legion of Honour in 1878. Following his death in 1908 in Saint-Ouen-sur-Seine, the family business faced operational challenges. The facility was eventually acquired by André Citroën in 1924.
Fast facts
- Born: 1824, Paris
- Died: 1908, Saint-Ouen-sur-Seine
- Education: École Centrale Paris
- President of the Society of Civil Engineers of France: 1879
- Officer of the Legion of Honour: 1878
- Plumey prize recipient: 1875
- Primary factory location: Saint-Ouen
- Citizenship: France
Questions readers ask
What major industrial contribution is attributed to Joseph Farcot?
He was a pioneer in the development of servomechanisms, specifically designing feedback-based steering engines that allowed for the precise mechanical control of heavy ship rudders.
What happened to the Farcot factory after he died?
Following Farcot's death in 1908, the business experienced difficulties, leading to a sale in 1915 and acquisition by André Citroën in 1924.
Achievements
- Officer of the Legion of Honour — 1878
- Educated at École Centrale Paris
