Adler

D, 1900 – 1939

(1) Adler Fahrradwerke vorm. Heinrich Kleyer AG 1900 – 1906

(2) Adlerwerke vorm. Heinrich Kleyer AG, Frankfurt/Main 1906 – 1939

This well-known bicycle and typewriter firm had already built components for Benz as well as a few De Dion tricycles when their first car appeared in 1900. This closely resembled the contemporary Renault, with tubular frame, shaft drive, and front-mounted 400cc single-cylinder De Dion engine; suspension was full-elliptic all round and steering was by tiller, but both these archaisms had gone by 1901 when a bigger 510cc power unit was standardized. By 1902 the company were making their own engines, an 850cc single and a 1.7-litre twin, there were four forward speeds, and the lateral radiators continued the Renault idiom.

With the arrival of Edmund Rumpler in 1903 the Adler idiom crystallized, even if this experimental swing-axle suspension did not pass beyond the prototype stage. Characteristics of the new models were side valves in an L-head, dual ignition, pressed-steel frames, and rectangular radiators. Four cylinders were preferred, though singles were still offered in 1905, and twins as late as 1909. By 1905 there were 4-cylinder cars of 2.8-litres, 4-litres and 7.4-litres, this last figuring in Adler’s Herkomer Trophy entry, and attracting an order from Kaiser Wilhelm II in 1907. If the 1906 Kleinwagen, a 1.032cc aiv V-twin with water cooling and steel artillery wheels, marked a retrograde step, by 1907 the company had adopted the unit gearbox, and were experimenting with ioe engines, achieving a 3rd place in the Prince Henry trials. There were also some modest short-stroke fours. A 2-litre 8/15ps was followed a year later by the successful 1.555cc 7/15. This developed into the 1.8-litre 7/15, popular in England as the 12hp. These small Adlers had dual ignition, but foot accelerators were found only on the bigger cars as late as 1913. There was a fast 5.2-litre 76bhp ioe model for the 1910 Prince Henry Trials, and a smaller 3.2-litre version was offered to the public. It evolved into the 15/40 of 1913, with 3.8-litre and 69bhp, used as the basis for Adler’s unsuccessful 1914 T.T. racers. Their Knight-engined 1911 cars did not progress beyond the prototype stage, but very attractive was that year’s new model, the 1.3-litre K voiturette, initially with pair-cast cylinders, but offered in 1913 with Monobloc engine and a choice of side-by-side or tandem seats. Rear suspension was full-elliptic. It did 50mhp and 38mpg, and was well received by Britons, who bought it under the name of Morgan-Adler Carette. There were also some large sv fours, the 4.8-litre 19/45 appearing in 1911, followed in 1912 by a 7.8-litre 30/70, and in 1914 by a V-radiatored 9.1-litre monster, top of a nine-model range. Also new was an enlarged K, the 1.552cc KL with four-seater bodywork and semi-elliptic rear springs.

A selection of the more popular 1914 types reappeared in 1919, and even in 1922 a replacement for the KL, the 6/22PS, retained a fixed head and reverted to a separate gearbox. Adler’s first sixes came in 1925, these boasting alloy pistons, detachable heads, and front wheel brakes. The 10/50 had a 2.6-litre Monobloc engine, but the 4.7-litre 18/80 was of biblock type. Also new was an essay in the American idiom, Becker’s 1.550cc 4-cylinder Favorit. Three years later it had been joined by a 2.9-litre six and a 3.9-litre straight-8, both with hydraulic brakes, these being offered on an enlarged and modernized Favorit in 1929. 

At the Geneva Show in 1932 Adler presented their new 1.5-litre Trumpf with front-wheel drive and independent wheel suspension, a design of H.G. Röhr. This first front-driven car was followed by the 1-litre Trumpf Junior, the 1.7-litre Trumpf and the 2-litre model. The competition versions of these models – very often fitted with aerodynamic bodies – were very successful in the years from their appearance to the outbreak of World War 2. Streamlined Trumpf and Trumpf Junior cars gained 22 international records in 1935 and 1936 on the Avus and the Darmstadt Autobahn. A win in the Leinster Trophy Race of 1934, a Team Prize at Spa in 1936 in the 2-litre class, a 2-litre class win and 6th place overall at Le Mans in 1937 were only a few of the victories. In 1937 Adler introduced a rear-wheel driven model again, the 2.5-litre with 6-cylinder 50bhp engine, aerodynamic body and swing axles. The sports version of this type developed 80bhp.

Production of private ceased in 1939. Some prototypes of the Trumpf Junior were produced after the war and were on show at the Hanover Fair 1948, but production was not taken up. Instead of this, production of motorcycles was resumed, lasting until 1957.

Source: Georgano, encyclopedia of motorcar; HON

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com

Stoewer

D, 1899 – 1939

(1) Gebrüder Stoewer, Fabrik für Motorfahrzeuge, Stettin, 1899 – 1916

(2) Stoewer-Werke AG vorm. Gebr. Stoewer, Stettin, 1916 – 1939

The Stoewer car factory developed out of the Stoewer ironworks and was among the pioneers of the German car industry. After manufacturing motor cycles, tricycles and quadricycles for two years, Stoewer turned to cars in 1899. The first Stoewer car had a rear-mounted 2-cylinder engine. 4-cylinder Stoewer cars followed in 1901, and electric Stoewer cars were also produced. Best known were the 2-cylinder Type T Stoewer car (2.280cc and 3/12PS), the 4-cylinder Stoewer P4 (3.052cc and 11/22PS), the Stoewer G4 (1.500cc and 6/12PS) and the 6-cylinder Stoewer P6 (8.820cc and 34/60PS), evolved in the 1905-1907 period all Stoewer cars with shaft-drive. The Stoewer B1 of 6/16PS and the Stoewer B6 of 9/22PS which appeared in 1910 were also built by Mathis under licence. The G4 Stoewer car was the basis for the Stoewer B5, which Stoewer car in 1912 became famous by setting up a record at Brooklands with 67.7mph. The new range of Stoewer cars which appeared in 1913 was also based on successful earlier cars. They were the Stoewer C1 (6/18PS), Stoewer C2 (10/28PS) and C3 Stoewer car (6-cylinder and 19/45PS). Shortly before the outbreak of World War 1 the Stoewer car range was headed by the F4 Stoewer car with a 4-cylinder, 8.8-litre 33/100PS ohc engine. After the war an enormous Stoewer car appeared, the Stoewer D7, using a 6-cylinder 11.2-litre 42/120PS aero engine, as well as some conservative sv 4- and 6-cylinder Stoewer cars with rear wheel and transmission brakes. Front wheel brakes appeared on Stoewer cars in 1925. Stoewer introduced 8-cylinder Stoewer cars in 1928. These were the Stoewer Superior, Stoewer Marschall, Stoewer Gigant and Stoewer Repräsentant with engines ranging from 2-litres and 45bhp to 4.9-litres and 100bhp. The Stoewer car firm re-entered the economy class in 1931 with the V5, a front-driven Stoewer car with a V4 1.188cc engine, followed by the front-drive models R140 (1.369cc), R150 (1.488cc) and R180 (1.769cc). Another 8-cylinder was the front wheel drive Greif V8 with a 2.488cc engine, which was replaced by the conventional 6-cylinder 3.609cc Arcona Stoewer car in 1938. In 1934 the 1½-litre 4-cylinder Stoewer car and 2½-litre V8 Stoewer car were shown at the Brussels Salon by Monsieur Dewaet under the name D.S. (Dewaet-Stoewer). The Greif Junior was built under Tatra licence with an opposed 4-cylinder 1.474cc engine. It succeeded the Röhr Junior. In the middle of the range was the Stoewer Sedina with a 4-cylinder engine of 2.4-litres.

Production of private Stoewer cars was given up at the outbreak of World War 2 in 1939. The Stoewer car factory was destroyed during the war and production of Stoewer cars was not resumed.

Source: Georgano, encyclopedia of motorcar; HON   

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com