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Wilhelm Jakobs

Wilhelm Jakobs is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Wilhelm Jakobs rather than just read about it. In short: Wilhelm Jakobs (February 10, 1858 – February 3, 1942) was a German railway engineer and construction advisor. Life Early years and education Wilhelm Jakobs was born on 10 February 1858 in Diezenkausen as the eldest child of Wilhelm Jakobs (1832–1913) and Luise, born Luise Simon.

Wilhelm Jakobs — main illustration
Wilhelm Jakobs — illustration

Key takeaways

  • Wilhelm Jakobs belongs to engineering; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Wilhelm Jakobs to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Wilhelm Jakobs from memory before moving on to harder problems.

Reference excerpt

Wilhelm Jakobs (February 10, 1858 – February 3, 1942) was a German railway engineer and construction advisor.

Life

Early years and education Wilhelm Jakobs was born on 10 February 1858 in Diezenkausen as the eldest child of Wilhelm Jakobs (1832–1913) and Luise, born Luise Simon. His father, a respected farmer and blacksmith, held public office and was known for his poetic inclinations, earning him the nickname "poet behind the plow" among the foresters. Wilhelm attended elementary school in Waldbröl and secondary school at the Friedrich-Wilhelm Gymnasium in Cologne, graduating on 17 July 1877. He then enrolled in mechanical engineering at the Berlin Gewerbeakademie (later Technical University) on 9 October 1877. On 22 November 1882, he passed the first state examination for mechanical engineering. Following his graduation, Wilhelm worked in railroad workshops and completed military service as a one-year volunteer at the railroad regiment. He then focused on locomotive construction in Hanover and passed the locomotive examination between 1886 and 1888. From 16 July 1888 onwards, he worked as a railroad official at the railway directorate in Cologne. On 28 August 1895, Wilhelm married Else Luyken and established his first household in St. Johann. Together, they had five sons born between 1896 and 1905. In 1896, Wilhelm was called back to Cologne but retired from civil service in 1900 to become the head of the Rastatt wagon factory. On 10 April 1901, the Imperial Patent Office granted him a patent for a "passenger car consisting of several articulated sections, two of which each rest on a common bogie with the ends facing each other." This bogie, known as the Jakobs bogie, was since adopted by numerous railcars and multiple units worldwide. In this construction, two adjacent car body ends of railway vehicles are based on a common bogie from which effort and weight can be saved. In the spring of 1914, Wilhelm became one of the two managing directors of the Association of German Wagon Factories, which was established in Berlin, and relocated with his family to Berlin-Dahlem.

First World War During the onset of the First World War, Wilhelm Jakobs advanced as Captain of the Reserve and Company Leader of the Reserve Railroad Company 9 on the second day of mobilization. In August, he and his company were deployed to Belgium, where they restored the train station in Libramont. Between September and November 1914, Wilhelm Jakobs oversaw the construction of war railway bridges over the Mesh at Charleville Mezieres, the Scheldt at Ename, and Audenarde. He also restored and put into operation the Sodeghem Kortrijk railway. The train ran from Roeselare to Moorslede and Ypres. By the turn of 1915, the railways between Torhout and Ostend, as well as Thourout and Ypres, were taken over and expanded. At Ostend, heavy guns were positioned in the dunes, and the lighthouse was prepared for blasting. In April 1915, Wilhelm Jakobs led the railway operations during the attack on Ypres and subsequent battles. In July 1915, he was transferred to the 5th Army (Crown Prince Army) and appointed as the chief of the Baudirektion of this army. On 30 November 1915, he was promoted to the rank of major in the reserve. In the winter of 1915–1916, Wilhelm Jakobs, along with the subordinate tram companies and temporarily assigned troop departments, prepared and maintained supply and attack routes for the attack on Verdun in the area of the 5th Army. He also participated in the repair of locks and the Maas canal after Verdun, which became operational again in the autumn of 1916. During this time, Wilhelm Jakobs received the Iron Cross II and I Class, as well as the Knight's Cross I. However, he was called back from the field to resume his leadership role in the Association of German Wagon Factories due to the increasing need for new railway wagons for the war effort. He participated in the vehicle committee until its dissolution. The progression of the war filled Wilhelm Jakobs with growing bitterness and anxiety towards the All-German Association and its far-reaching war aims. He supported the emergence of the so-called 1917–18 Fatherland Party. On 28 October 1918, shortly before the monarchy ended, he was awarded the honorific title of "Royal Building Council." After his death, he remained in the memory of the people in Waldbröler as the "Jakob's Building Council." The lost war, the revolution, and the Versailles Treaty deeply shook Wilhelm Jakobs. In December 1918, he participated in the founding of the German National People's Party and ran for office in parliamentary elections but did not gain a seat. In March 1921, the Association of German Wagon Factories was dissolved and replaced by the Association of German Wagon Factories, which was also later dissolved in October 1923. Wilhelm Jakobs was forced to retire at the age of 65, but took some solace in the 1920s production based on his invention, the Jakob joint car.

Death In October 1926, Wilhelm Jakobs sold his house in Berlin-Dahlen and relocated with his wife to Bensheim an der Bergstraße. The two subsequently moved back to his hometown of Diezenkausen in 1931. In 1939, at the age of 80, Wilhelm Jakobs sold his house in Diezenkausen and moved with his wife to a pension in Bonn. He died of a stroke on 3 February 1942.

Further reading (German) Karl Sachs: Elektrische Triebfahrzeuge. Huber, Frauenfeld 1953.

References

External links (German) Biography Wilhelm Jacobs

Illustrations

Wilhelm Jakobs illustration

Worked examples

Example 1 — a first encounter with Wilhelm Jakobs

Start with the simplest possible case. Write down what Wilhelm Jakobs claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Wilhelm Jakobs before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Wilhelm Jakobs ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Wilhelm Jakobs

In research
Wilhelm Jakobs appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Wilhelm Jakobs in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Wilhelm Jakobs is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1858 births, 1942 deaths, 20th-century German engineers, so understanding it makes those chapters shorter.
In everyday life
Look for Wilhelm Jakobs outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Wilhelm Jakobs in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Wilhelm Jakobs means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Wilhelm Jakobs out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Wilhelm Jakobs in simple terms?

Wilhelm Jakobs (February 10, 1858 – February 3, 1942) was a German railway engineer and construction advisor. Life Early years and education Wilhelm Jakobs was born on 10 February 1858 in Diezenkausen as the eldest child of Wilhelm Jakobs (1832–1913) and Luise, born Luise Simon.

Why does Wilhelm Jakobs matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Wilhelm Jakobs?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Wilhelm Jakobs.

Tags

  • 1858 births
  • 1942 deaths
  • 20th-century German engineers
  • 20th-century mechanical engineers
  • German railway mechanical engineers
  • Train drivers

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