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Sylvester H. Roper

Sylvester H. Roper
Line drawing of a man standing next to a bicycle with a steam engine
Born Sylvester Howard Roper
(1823-11-24)November 24, 1823
Francestown, New Hampshire, U.S.
Died June 1, 1896(1896-06-01) (aged 72)
Cambridge, Massachusetts, U.S.
Cause of death Heart failure, motorcycle crash
Residence Roxbury, Massachusetts, U.S.
Occupation Machinist, inventor
Known for Roper steam velocipede, repeating shotgun, shotgun choke
Spouse(s) Almira D. Hill
Children Charles Roper
Awards Motorcycle Hall of Fame (2002)

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 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.

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, 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 neighborhood at 299 Eustis Street.

About the same time he came to Boston, Roper invented his Handstitch Sewing Machine. In 1861 he invented a hot air engine. 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, Christopher Miner Spencer. Roper was observed driving his steam carriage around Boston in 1863. One such 1863 carriage went to the Henry Ford Museum.


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