Hayward A. Harvey
Encyclopedia
Hayward Augustus Harvey (January 17, 1824 – August 28, 1893) was an American
inventor and industrialist.
the front surface of steel
armor plate. The resulting Harvey armor
was widely used on armoured ships in the 1890s. He was born in Jamestown
, New York
, U.S.A.
. He invented the Harvey process while living in Orange
, New Jersey
, and died there on August 28, 1893.
Patents
Newest first, Manufacture of Steel Rails for Railroads, Improvement in Compositions for Super-carburizing Steel, Improvements in Decrementally-Hardened Armor-Plates, Gun, Spring-washer
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
inventor and industrialist.
Biography
Hayward Harvey is best known for inventing the Harvey process for case hardeningCase hardening
Case hardening or surface hardening is the process of hardening the surface of a metal, often a low carbon steel, by infusing elements into the material's surface, forming a thin layer of a harder alloy...
the front surface of steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...
armor plate. The resulting Harvey armor
Harvey armor
Harvey armor was a type of steel armor developed in the early 1890s in which the front surfaces of the plates were case hardened. The method for doing this was known as the Harvey process....
was widely used on armoured ships in the 1890s. He was born in Jamestown
Jamestown, New York
Jamestown is a city in Chautauqua County, New York in the United States. The population was 31,146 at the 2010 census.The City of Jamestown is adjacent to Town of Ellicott and is at the southern tip of Chautauqua Lake...
, New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...
, U.S.A.
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. He invented the Harvey process while living in Orange
Orange, New Jersey
The City of Orange is a city and township in Essex County, New Jersey, United States. As of the 2010 United States Census, the township population was 30,134...
, New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...
, and died there on August 28, 1893.
External articles
Further reading- Memoir of Hayward Augustus Harvey By Thomas William Harvey. T.W. Harvey, 1900.
Patents
Newest first, Manufacture of Steel Rails for Railroads, Improvement in Compositions for Super-carburizing Steel, Improvements in Decrementally-Hardened Armor-Plates, Gun, Spring-washer