Alfred Angas Scott 1908 .... Scott Motorcycle .... Sociable .... Engines ....

Scott Motorcycles

Alfred Angas Scott was a motorcycle designer, and a prolific inventor, who took out over 50 patents between 1897 and 1920, mostly concerning two-stroke engines and road vehicles.

Alfred Scott's first motorcycle was developed from his own 2 horsepower (1.5 kW) twin cylinder engine design which he hand built and fitted to the steering head of a bicycle. These engines were used to power equipment such as lathes and light machinery and Scott had been involved in the manufacture of 'Premier' pedal cycles. He developed this prototype into a motorcycle and six were produced under contract by friends with a car company called Jowett in Bradford, UK. Scott patented an early form of calliper brakes in 1897 (Patent GB 1626 of 1897), designed a fully triangulated frame, rotary induction valves, and used unit construction for his motorcycle engine.

Scott started making boat engines in 1900. He patented his first engine in 1904 (Patent GB 3367 of 1904) and started motorcycle production in 1908 with a vertical two-stroke 450 cc twin, with patented triangulated frame, chain drive, neutral-finder, kick starter (Patent GB 27667 of 1908), and two-speed gearbox. His patented two-stroke engine designs are still the basis of modern two-stroke engines and features such as the first kick start, monoshock suspension, efficient radiators, rotary inlet valves, drip-feed lubricators and centrestands continue to this day.

Scott motorcycles were very successful in competitions, winning the fastest laps at the Isle of Man TT (Tourist Trophy race) from 1911-14, with outright wins in 1912 and 1913. Scott's motorcycles were deemed to be 'too efficient' for racing against motorcycles of the same capacity, so their cubic capacity was multiplied by 1.32 for competitive purposes.

1913 Scott 550cc

The outbreak of the First World War in 1914 halted production of civilian Scott motorcycles. Alfred Scott developed a three-wheeled machine gun carriage which was not taken up by the military and in 1919 he left the Scott motorcycle company he had founded to develop the vehicle for civilian use as the Scott Sociable. This did not prove to be as successful as the Scott motorcycles.

Scott Sociable

After the war Scott motorcycle production restarted with the 532 cc Standard Tourer and in 1922 Scott introduced the Squirrel, its first sporting model to be offered to the general public. This had a slightly smaller 486 cc engine to bring it within the 500 cc competition limit but, with aluminium pistons and careful preparation, it produced more power. In addition, many heavy accessories such as foot boards and leg shields which had been fitted to the touring models were dispensed with, making it a very light and competitive motorcycle. It was followed by the Super Squirrel, with a further revised engine of 498 cc or 596 cc, which was the mainstay of production in the mid-1920s.

Although they never regained their pre-war form, Scotts continued to compete successfully in sporting events scoring a 3-4 in the 1922 TT and a third in 1924. A three-speed gearbox with conventional clutch was offered from 1923 and in this form the machine had some success as a trials motorcycle.

1923 Scott Squirrel

In 1929 Scott achieved third place in the Isle of Man TT and launched a road going TT Replica Flying Squirrel. Following cost cutting the factory also launched a basic touring model in 1929 for under £70. Financial problems continued, however, and in 1931 Scott were unable to enter the TT or the Earls Court show. A three cylinder prototype was developed but Scotts lacked the resources to develop it and production ended due to the outbreak of the Second World War.

Scott Flying Squirrel

Shortly after the end of the Second World War (1946/7) Scott relaunched the Scott Flying Squirrel, available with 500 or 600 cc engines.

Stationary Engines

In the 1930s Scott manufactured a number of stationary engines with the aim of raising funds following the decline in motorcycle sales. Some of these engines were derived from motorcycle units, for instance the DSE was a watercooled version of the Lightweight Squirrel engine and the SE had the same bore and stroke dimensions as the long stroke Flyers. The PA stationary engine however was different. Designed to meet a Ministry requirement for a portable electrical generator for the Bofors anti-aircraft gun and its Kerrison Predictor, it was produced during the Second World War by both Scott and its former partners Jowett. It was air cooled, petroil lubricated and featured a loop scavenge design with two opposed main transfer ports supplemented by a third "boost" port opposite the exhaust. This arrangement was patented by Scott in 1939 but is often mistakenly believed to be of post war origin as it was later widely adopted for motorcycle racing engines and power boats after its "reinvention" in the late 1950s by East German motorcycle manufacturer MZ.

Aircraft Engines

Between 1935 and 1938 the factory at Shipley in Yorkshire produced the B2592 air-cooled Aero engine, based on the Scott Flying Squirrel motorcycle unit. A 25 hp (19 kW) version was also specifically developed to power the notoriously dangerous Flying Flea aircraft.

Flying Flea

Sources: This article uses material from the Wikipedia website and the public domain. (Wikipedia articles 'Alfred Angas Scott', 'The Scott Motorcycle Company', 'Scott Flying Squirrel', 'Scott Sociable' and 'Mignet Pou-du-Ciel')

This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License

Scott1908.com	Alfred Angas Scott (1875-1923)

Scott Motorcycles Alfred Angas Scott was a motorcycle designer, and a prolific inventor, who took out over 50 patents between 1897 and 1920, mostly concerning two-stroke engines and road vehicles. Alfred Scott's first motorcycle was developed from his own 2 horsepower (1.5 kW) twin cylinder engine design which he hand built and fitted to the steering head of a bicycle. These engines were used to power equipment such as lathes and light machinery and Scott had been involved in the manufacture of 'Premier' pedal cycles. He developed this prototype into a motorcycle and six were produced under contract by friends with a car company called Jowett in Bradford, UK. Scott patented an early form of calliper brakes in 1897 (Patent GB 1626 of 1897), designed a fully triangulated frame, rotary induction valves, and used unit construction for his motorcycle engine. Scott started making boat engines in 1900. He patented his first engine in 1904 (Patent GB 3367 of 1904) and started motorcycle production in 1908 with a vertical two-stroke 450 cc twin, with patented triangulated frame, chain drive, neutral-finder, kick starter (Patent GB 27667 of 1908), and two-speed gearbox. His patented two-stroke engine designs are still the basis of modern two-stroke engines and features such as the first kick start, monoshock suspension, efficient radiators, rotary inlet valves, drip-feed lubricators and centrestands continue to this day. Scott motorcycles were very successful in competitions, winning the fastest laps at the Isle of Man TT (Tourist Trophy race) from 1911-14, with outright wins in 1912 and 1913. Scott's motorcycles were deemed to be 'too efficient' for racing against motorcycles of the same capacity, so their cubic capacity was multiplied by 1.32 for competitive purposes. 1913 Scott 550cc The outbreak of the First World War in 1914 halted production of civilian Scott motorcycles. Alfred Scott developed a three-wheeled machine gun carriage which was not taken up by the military and in 1919 he left the Scott motorcycle company he had founded to develop the vehicle for civilian use as the Scott Sociable. This did not prove to be as successful as the Scott motorcycles. Scott Sociable After the war Scott motorcycle production restarted with the 532 cc Standard Tourer and in 1922 Scott introduced the Squirrel, its first sporting model to be offered to the general public. This had a slightly smaller 486 cc engine to bring it within the 500 cc competition limit but, with aluminium pistons and careful preparation, it produced more power. In addition, many heavy accessories such as foot boards and leg shields which had been fitted to the touring models were dispensed with, making it a very light and competitive motorcycle. It was followed by the Super Squirrel, with a further revised engine of 498 cc or 596 cc, which was the mainstay of production in the mid-1920s. Although they never regained their pre-war form, Scotts continued to compete successfully in sporting events scoring a 3-4 in the 1922 TT and a third in 1924. A three-speed gearbox with conventional clutch was offered from 1923 and in this form the machine had some success as a trials motorcycle. 1923 Scott Squirrel In 1929 Scott achieved third place in the Isle of Man TT and launched a road going TT Replica Flying Squirrel. Following cost cutting the factory also launched a basic touring model in 1929 for under £70. Financial problems continued, however, and in 1931 Scott were unable to enter the TT or the Earls Court show. A three cylinder prototype was developed but Scotts lacked the resources to develop it and production ended due to the outbreak of the Second World War. Scott Flying Squirrel Shortly after the end of the Second World War (1946/7) Scott relaunched the Scott Flying Squirrel, available with 500 or 600 cc engines. Stationary Engines In the 1930s Scott manufactured a number of stationary engines with the aim of raising funds following the decline in motorcycle sales. Some of these engines were derived from motorcycle units, for instance the DSE was a watercooled version of the Lightweight Squirrel engine and the SE had the same bore and stroke dimensions as the long stroke Flyers. The PA stationary engine however was different. Designed to meet a Ministry requirement for a portable electrical generator for the Bofors anti-aircraft gun and its Kerrison Predictor, it was produced during the Second World War by both Scott and its former partners Jowett. It was air cooled, petroil lubricated and featured a loop scavenge design with two opposed main transfer ports supplemented by a third "boost" port opposite the exhaust. This arrangement was patented by Scott in 1939 but is often mistakenly believed to be of post war origin as it was later widely adopted for motorcycle racing engines and power boats after its "reinvention" in the late 1950s by East German motorcycle manufacturer MZ. Aircraft Engines Between 1935 and 1938 the factory at Shipley in Yorkshire produced the B2592 air-cooled Aero engine, based on the Scott Flying Squirrel motorcycle unit. A 25 hp (19 kW) version was also specifically developed to power the notoriously dangerous Flying Flea aircraft. Flying Flea Sources: This article uses material from the Wikipedia website and the public domain. (Wikipedia articles 'Alfred Angas Scott', 'The Scott Motorcycle Company', 'Scott Flying Squirrel', 'Scott Sociable' and 'Mignet Pou-du-Ciel') This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License		Info Links



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