Sylvester H. Roper
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Sylvester Howard Roper (November 24, 1823 – June 1, 1896) was an American inventor and a pioneering builder of early automobiles and motorcycles from Boston, Massachusetts. In 1863 he built a steam carriage, one of the earliest automobiles. The
Roper steam velocipede The Roper steam velocipede was a steam-powered velocipede built by inventor Sylvester H. Roper of Roxbury, Boston, Massachusetts, United States sometime from 1867–1869. It is one of three machines which have been called the first motorcycle, ...
of 1867–1869 may have been the first motorcycle, for which he was inducted into the Motorcycle Hall of Fame in 2002. He is also the inventor of the shotgun choke and a revolver repeating shotgun.


Early life

Sylvester H. Roper's father, Merrick, was a cabinetmaker, born 1792 in Sterling, Massachusetts. Merrick came to Francestown, New Hampshire in 1807 and married Sylvester's mother Susan Fairbanks in 1817. Sylvester had an older brother who was a housepainter, two younger sisters, and a younger brother who became a machinist at the Singer Sewing Machine Manufactory in Boston, then later a jeweler. Sylvester Roper was born on November 24, 1823. From an early age he displayed mechanical talent. At age 12 he made a stationary steam engine, even though he had never seen one before in person; this invention was kept on display in the laboratory of the Francestown Academy. At age 14, he built a locomotive engine, and only afterward saw such an engine for the first time in Nashua. Roper left Francestown at a young age and worked as a machinist, first in Nashua, then in Manchester, New York,The history is unclear if this refers to Manchester (town), New York, Manchester (village), New York, or Manchester, New Hampshire and New York state and Worcester. He married Almira D. Hill on April 20, 1845 in Providence, Rhode Island. In 1854 he moved to Boston, Massachusetts living in the
Roxbury Roxbury may refer to: Places ;Canada * Roxbury, Nova Scotia * Roxbury, Prince Edward Island ;United States * Roxbury, Connecticut * Roxbury, Kansas * Roxbury, Maine * Roxbury, Boston, a municipality that was later integrated into the city of Bosto ...
neighborhood at 299 Eustis Street.


Inventor

About the same time he came to Boston, Roper invented his Handstitch Sewing Machine. In 1861 he invented a hot air engine and filed several patents for a hot air engines. He eventually succeeded in building engines ranging from 1 to 4 HP. In 1869 over 200 roper's air engines were in operation. Roper worked for the Springfield Armory during the Civil War. Roper's work eventually came to the attention of other inventors and engineers of the area, including Elias Howe,
Alvan Clark Alvan Clark (March 8, 1804 – August 19, 1887), born in Ashfield, Massachusetts, the descendant of a Cape Cod whaling family of English ancestry, was an American astronomer and telescope maker. Biography He started as a portrait painter and engra ...
, Christopher Miner Spencer. Roper was observed driving his steam carriage around Boston in 1863. One such 1863 carriage went to the Henry Ford Museum. Roper invented the first
shotgun A shotgun (also known as a scattergun, or historically as a fowling piece) is a long gun, long-barreled firearm designed to shoot a straight-walled cartridge (firearms), cartridge known as a shotshell, which usually discharges numerous small p ...
choke, short tubes that could be threaded onto, or removed from, the outside of the shotgun barrel to vary the shot spread to suit different targets and ranges. Roper and Christopher Miner Spencer were granted a joint patent for a repeating shotgun mechanism on April 4, 1882. Later, on April 21, 1885, Roper alone obtained a patent for an improved shotgun loading mechanism. Roper and his son, Charles, designed a factory producing screw making equipment, which Charles Roper continued to manage after his father's death.


Death while riding

On June 1, 1896, Roper rode one of his later velocipede models, a Pope Manufacturing Company Columbia bicycle with a steam engine added, to the Charles River bicycle track, near Harvard Bridge, Cambridge, Massachusetts where he made several laps, pacing bicyclists there, including professional rider Tom ButlerThe same Tom Butler was overtaken 10 feet from the finish by
Major Taylor Marshall Walter "Major" Taylor (November 26, 1878 – June 21, 1932) was an African-American professional cyclist. Even by modern cycling standards, Taylor could be considered the greatest American sprinter of all time. He was born and raised ...
in the 1899 world track cycling championship. See
who could not keep up with the steam powered machine. Roper was clocked at 2 minutes 1.4 seconds for the flying mile, for a top speed He was seen to be unstable and then fall on the track, suffering a head wound, and was found dead. After autopsy, the cause of death was found to be heart failure, although it is unknown if the crash was the cause of the stress on his heart, or if his heart failed prior to the crash.


List of patents


References


External links

* * * Demonstration of working replica of 1894 Roper velocipede by Pete Gagan of the Antique Motorcycle Club of America. * {{DEFAULTSORT:Roper, Sylvester 1823 births 1896 deaths People from Francestown, New Hampshire People from Boston 19th-century American inventors Steam motorcycle designers Machine tool builders Inventors killed by their own invention Steam vehicles American automotive pioneers