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Adler was a German bicycle, car, and motorcycle manufacturer from 1880 until 1957. The 'Adler' name is German for 'eagle'.Adlerwerke vormals Heinrich Kleyer (‘Adler Works formerly [known as] Heinrich Kleyer’) was a German manufacturer established byHeinrich Kleyer [de] inFrankfurt am Main.
The factory inFrankfurt-Gallus still exists and was restored in the late 1990s for use as an office building. It also houses theGallustheater and a restaurant.
The Adler factory produced bicycles (from 1880),typewriters,sewing machines motorcycles, aircraft and calculators in addition to cars. BeforeWorld War I, the company usedDe Dion two- and four-cylinder engines in cars that ranged from 1032 cc to 9081 cc; beginning in 1902 (the yearEdmund Rumpler became technical director),[1] they used their own engines as well. These cars, driven by Erwin Kleyer and Otto Kleyer (sons of the company founder Heinrich Kleyer) and by Alfred Theves won many sporting events. In the 1920s, Karl Irion raced many Adlers; popular models of the period included the 2298 cc, 1550 cc, and 4700 cc four-cylinders and the 2580 cc six-cylinders. A few of theStandard models, built between 1927 and 1934, featuredGropius-designed coachwork. TheAdler Standard 6, which entered volume production in 1927, had a 2540 cc or 2916 cc six-cylinder engine, while theAdler Standard 8 which appeared a year later use a 3887 cc eight-cylinder engine. The Standard 6, first seen in public at theBerlin Motor Show in October 1926 was the first Continental European car to useLockheedhydraulic brakes (theTriumph 13/35 offered them in the UK in 1924 andDuesenberg offered them in the US in 1920), when it was fitted with an ATE-Lockheed system. 1927 to 1929Clärenore Stinnes was the first to circumnavigate the world by car, in an Adler Standard 6.[2]
In December 1930, Adler assigned the German engineerJosef Ganz, who was also editor-in-chief ofMotor-Kritik magazine, as a consultant engineer. In the first months of 1931, Ganz constructed a lightweightVolkswagen prototype at Adler with a tubular chassis, a mid-mounted engine, andindependent wheel suspension withswing-axles at the rear. After completion in May 1931, Ganz nicknamed his new prototypeMaikäfer (May Beetle). After a shift in management at Adler, further development of the Maikäfer was stopped as the company's new technical director Hans Gustav Röhr concentrated on front-wheel driven cars.
In the 1930s, the company introducedfront-wheel driveTrumpf andTrumpf-Junior models, ranging from 995 cc to 1645 cc four-cylinder flat-headsv engines. These gained many successes in races, including in theLe Mans race. The 1943 ccFavorit, the 2916 cc six-cylinderDiplomat (featuring 65hp (48 kW) at 3800rpm, and the 1910 cc four-cylinder and 2494 cc six-cylinder models (withAmbi-Budd andKarmannbodywork) were allrear-driven; these were built untilWorld War II. The last new car introduced by Adler was the2.5 Liter of 1937; it had a six-cylinder engine producing 58 hp (43 kW). Thanks to a streamlined body designed byPaul Jaray, this car could run at 125 km/h (78 mph).[3]
AfterWorld War II, a decision was made to not resume automobile construction. Motorcycle production resumed in 1949 and continued for eight years, leading to the production of the MB 250S. As part ofwar reparations to the Allies, Adler motorcycle designs were ceded to Britain; however it is anurban myth that the Adler designs formed the basis ofAriel's[4]Arrow andLeader models. Increasingly, Adler focused on the manufacture of office equipment. The company associated withTriumph to formTriumph-Adler, and was taken over byGrundig in 1957, then later byOlivetti.[5] In 1969 Adler was acquired byLitton Industries.
In 1993, Olivetti sold Adlerwerke AG, which is still listed on the stock exchange, with the entire historical factory premises in Frankfurt to real estate investor Roland Ernst and construction company Philipp Holzmann. The existing typewriter production was initially relocated and finally discontinued in 1998; the site with the listed buildings was sold separately to subsidiaries of the investors. In 1999 HBAG Real Estate (formerly Kühltransit AG) took over 98.3 percent of the shares of Adlerwerke AG from the financially troubled Philipp Holzmann AG.
Adlerwerke AG changed its name toAdler Real Estate in 2002 and have been active in real estate project development since then.
| Typ | Construction Time | Cylinders | Capacity | Power | Top speed |
|---|---|---|---|---|---|
| Vis-à-Vis | 1900–1903 | 1 | 400 cc | 2,6 kW (3,5 PS) | 30 km/h (19 mph) |
| 45 PS (33 kW; 44 hp) | 1900–1903 | 1 | 510 cc | 3,3 kW (4,5 PS) | 35 km/h (22 mph) |
| 8 PS (6 kW; 8 hp) | 1901–1903 | 1 | 865 cc | 5,9 kW (8 PS) | 40 km/h (25 mph) |
| 24/28 PS | 1904–1905 | 4 inline | 4,016 cc | 20,6 kW (28 PS) | 65 km/h (40 mph) |
| 8/12 (8/14) PS | 1904–1906 | 2 inline | 2,008 cc | 8,8–10,3 kW (12–14 PS) | 50 km/h (31 mph) |
| 4/8 PS | 1906–1907 | 2 V | 1,032 cc | 5,9 kW (8 PS) | 55 km/h (34 mph) |
| 5/9 PS | 1907–1909 | 2 inline | 1,134 cc | 6,6 kW (9 PS) | 60 km/h (37 mph) |
| 8/15 PS | 1907–1910 | 4 inline | 2,011 cc | 11 kW (15 PS) | 55 km/h (34 mph) |
| 11/18 PS | 1907–1910 | 4 inline | 2,799 cc | 13,2 kW (18 PS) | 55 km/h (34 mph) |
| 23/50 PS | 1909–1912 | 4 inline | 5,800 cc | 42,6 kW (58 PS) | |
| 19/45 PS | 1909–1912 | 4 inline | 4,840 cc | 35 kW (48 PS) | |
| 13/30 PS | 1909–1912 | 4 inline | 3,180 cc | 25,7 kW (35 PS) | |
| 10/28 PS | 1909–1912 | 4 inline | 2,612 cc | 22 kW (30 PS) | |
| K 7/15 PS | 1910–1913 | 4 inline | 1,768 cc | 11 kW (15 PS) | 60 km/h (37 mph) |
| 30/70 PS | 1911–1914 | 4 inline | 7,853 cc | 51 kW (70 PS) | 115 km/h (71 mph) |
| 35/80 PS | 1911–1914 | 4 inline | 9,081 cc | 62,5 kW (85 PS) | |
| K 5/13 PS | 1911–1920 | 4 inline | 1,292 cc | 9,6–10,3 kW (13–14 PS) | 55 km/h (34 mph) |
| 20/50 PS | 1912–1914 | 4 inline | 5,229 cc | 40 kW (55 PS) | 105 km/h (65 mph) |
| 15/40 PS | 1913–1914 | 4 inline | 3,866 cc | 33 kW (45 PS) | 90 km/h (56 mph) |
| 9/24 PS | 1913–1914 | 4 inline | 2,313 cc | 17,6 kW (24 PS) | 70 km/h (43 mph) |
| 25/55 PS | 1913–1914 | 4 inline | 6,457 cc | 44 kW (60 PS) | |
| KL 6/16 PS | 1913–1920 | 4 inline | 1,551 cc | 11,8 kW (16 PS) | 60 km/h (37 mph) |
| 12/30 PS | 1914 | 4 inline | 3,115 cc | 25,7 kW (35 PS) | |
| 9/24 (9/30) PS | 1921–1924 | 4 inline | 2,298 cc | 17,6–22 kW (24–30 PS) | 65 km/h (40 mph)–75 km/h (47 mph) |
| 12/34 (12/40) PS | 1921–1924 | 4 inline | 3,115 cc | 25–29 kW (34–40 PS) | 85 km/h (53 mph) |
| 18/60 PS | 1921–1924 | 4 inline | 4,712 cc | 44 kW (60 PS) | 100 km/h (62 mph) |
| 6/22 PS | 1922–1923 | 4 inline | 1,550 cc | 16 kW (22 PS) | 75 km/h (47 mph) |
| 10/50 PS | 1925–1927 | 6 inline | 2,580 cc | 37 kW (50 PS) | 90 km/h (56 mph) |
| 18/80 PS | 1925–1927 | 6 inline | 4,704 cc | 59 kW (80 PS) | 100 km/h (62 mph) |
| 6/25 PS | 1925–1928 | 4 inline | 1,550 cc | 18 kW (25 PS) | 80 km/h (50 mph) |
| Standard 6 | 1927–1928 | 6 inline | 2,540 cc | 33 kW (45 PS) | 85 km/h (53 mph)–90 km/h (56 mph) |
| Standard 8 | 1928–1933 | 8 inline | 3,887 cc | 51–59 kW (70–80 PS) | 100 km/h (62 mph)–105 km/h (65 mph) |
| Standard 6 A/S | 1928–1934 | 6 inline | 2,916 cc | 37 kW (50 PS) | 85 km/h (53 mph)–90 km/h (56 mph) |
| Favorit | 1929–1933 | 4 inline | 1,943 cc | 25,7 kW (35 PS) | 80 km/h (50 mph) |
| Primus 1,5 A | 1932–1934 | 4 inline | 1,504 cc | 23,5–24,2 kW (32–33 PS) | 90 km/h (56 mph) |
| Trumpf 1,5 AV | 1932–1934 | 4 inline | 1,504 cc | 23,5–24,2 kW (32–33 PS) | 95 km/h (59 mph) |
| Favorit 2U | 1933–1934 | 4 inline | 1,943 cc | 29 kW (40 PS) | 90 km/h (56 mph) |
| Standard 6 3U | 1933–1934 | 6 inline | 2,916 cc | 44 kW (60 PS) | 100 km/h (62 mph) |
| Achtzylinder | 1933–1934 | 8 inline | 3,887 cc | 59 kW (80 PS) | 105 km/h (65 mph) |
| Trumpf Sport | 1933–1935 | 4 inline | 1,645 cc | 34,5 kW (47 PS) | 115 km/h (71 mph) |
| Primus 1,7 A | 1933–1936 | 4 inline | 1,645 cc | 28 kW (38 PS) | 95 km/h (59 mph) |
| Trumpf 1,7 AV | 1933–1936 | 4 inline | 1,645 cc | 28 kW (38 PS) | 100 km/h (62 mph) |
| Diplomat | 1934–1938 | 6 inline | 2,916 cc | 44–48 kW (60–65 PS) | 100 km/h (62 mph)–105 km/h (65 mph) |
| Trumpf Junior 1G/E | 1934–1941 | 4 inline | 995 cc | 18,4 kW (25 PS) | 90 km/h (56 mph) |
| Trumpf Junior Sport | 1935–1937 | 4 inline | 995 cc | 20,6 kW (28 PS) | 110 km/h (68 mph) |
| Trumpf 1,7 EV | 1936–1938 | 4 inline | 1,645 cc | 28 kW (38 PS) | 102 km/h (63 mph) |
| Primus 1,7 E | 1937–1938 | 4 inline | 1,645 cc | 28 kW (38 PS) | 100 km/h (62 mph) |
| Adler 2.5-litre | 1937–1940 | 6 inline | 2,494 cc | 42,6 kW (58 PS) | 125 km/h (78 mph) |
| Adler 2.5-litre Sport | 1938–1939 | 6 inline | 2,494 cc | 59 kW (80 PS) | 150 km/h (93 mph) |
| 2 Liter | 1938–1940 | 4 inline | 1,910 cc | 33 kW (45 PS) | 110 km/h (68 mph) |
