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Information about William Sellers

William Sellers (September 19 1824 – January 24 1905) was a mechanical engineer, manufacturer, and inventor who filed more than 90 patents, most notably the design for the United States standard screw thread. As president of the Franklin Institute in Philadelphia, Pennsylvania, Sellers proposed the adoption of a system of screw threads which was easier for ordinary mechanics and machinists to cut than a similar design by Joseph Whitworth.

Family

Sellers was born in Upper Darby, Pennsylvania to John and Elizabeth (Poole) Sellers, into a Quaker family full of industrial and manufacturing innovators. His cousins include George Escol Sellers (1808-1899), an inventor holding patents for a hill-climbing locomotive, a pulp-paper process, converting steamboats to coal, and removing brine from salt water, and Coleman Sellers (1827-1907), a five-term president of the Franklin Institute, who was instrumental in harnessing Niagara Falls for electricity.

Sellers was married in 1849 to Mary Ferris (1820-1870), with whom he had three children, Katherine (1852-1917), William (1856-1933), and Frances (1858-1859). He married again in 1873 to Amélie Haaszm (1842-1929), with whom he had another three children, Alexander (1875-1957), Richard (1881-1942), and Christine (1882-1884). He died in his hometown on January 24 1905 at the age of 81.

Career

After receiving a private education in a family-run school, he began apprenticing at age fourteen with his uncle, J. Morton Poole, in a machine shop near Wilmington, Delaware. After seven years, he moved to Providence, Rhode Island to run the shops of what eventually became the Corliss Steam Engine Company. Returning to West Philadelphia to start his own machine company, he eventually formed a partnership with his brother-in-law Edward Bancroft (1811-1855) in 1848. After Bancroft's death in 1855, Sellers incorporated as William Sellers & Co., which continued to operate until 1947 when it was sold to the Consolidated Machine Tool Corporation and relocated to Rochester, New York.

In 1847 Sellers was elected a member of the Franklin Institute, where he served as a member of the Board of Managers from 1857 to 1861 and again from 1864 to 1892, and as president from 1864 to 1867. At a meeting on September 15 1864, he presented a uniform system of screw threads which with its angle and its flat top and bottom differed from Whitworth's British standard. Within a few years, the system had been adopted by the government workshops, leading railroad companies, prominent machine tool builders and others, under the various names of the United States, Sellers, or Franklin Institute Systems.

Positions

Awards

References

September 19 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.

Events

  • 335 - Dalmatius is raised to the rank of Caesar by his uncle Constantine I.

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18th century - 19th century - 20th century
1790s  1800s  1810s  - 1820s -  1830s  1840s  1850s
1821 1822 1823 - 1824 - 1825 1826 1827

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Subjects:     Archaeology - Architecture -
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January 24 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.

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19th century - 20th century - 21st century
1870s  1880s  1890s  - 1900s -  1910s  1920s  1930s
1902 1903 1904 - 1905 - 1906 1907 1908

Year 1905 (MCMV
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The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada.
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The Franklin Institute is a museum in Philadelphia, Pennsylvania, and one of America's oldest and premier centers of science education and development in the country. The Franklin Institute itself comprises three centers, The Science Center, The Franklin Center, and The Center for
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Nickname: "City of Brotherly Love", "The City that Loves you Back", "Cradle of Liberty", "The Quaker City", "The Birthplace of America", "Philly".
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Sir Joseph Whitworth, Baronet (December 21, 1803 – January 22, 1887) was an English engineer and entrepreneur.

Early life and career

Whitworth was born in Stockport and at a young age developed an interest in machinery.
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Upper Darby Township
Township |

Nickname|: UD

Country | United States
State | Pennsylvania

County |
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Religious Society of Friends, whose members are commonly known as Quakers was founded in England in the 17th century as a Christian religious denomination by people who were dissatisfied with the existing denominations and sects of Christianity.
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Niagara Falls

The American Falls, Bridal Veil Falls, and Horseshoe Falls.
Location Niagara Falls (Ontario & New York)
Coordinates Coordinates:
Type Segmented Block
Total height 167 ft (51 m)
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City of Wilmington
City |



Flag |

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Providence, Rhode Island

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Nickname: Little Rhody, The Ocean State, Beehive of Industry, The Renaissance City, The Divine City
Location in Rhode Island
Coordinates:
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A Corliss Steam Engine is a steam engine fitted with Corliss valves, invented by and named after the American engineer George Henry Corliss. There are four valves for each cylinder, with steam and exhaust valves located at each end.
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Rochester, New York
A portion of Rochester's skyline, looking north-northeast along the Genesee River from the Ford Street Bridge.

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Nickname:
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September 15 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.

Events

  • 668 - Eastern Roman Emperor Constans II is assassinated in his bath at Syracuse, Italy.

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The American Philosophical Society is a discussion group founded in 1743 by Benjamin Franklin as an offshoot of his earlier club, the Junto. Through research grants, published journals, the upkeep of an extensive library, and regular meetings, the society continues to
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University of Pennsylvania (also known as Penn[3][4]) is a private, coeducational research university located in Philadelphia, Pennsylvania. According to the university, it is America's first university[5] and is the fourth-oldest
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Fairmount Park is Philadelphia's municipal park system. It consists of 63 parks, with 9,200 acres (3,723 hectares), all overseen by the Fairmount Park Commission.

Fairmount Park proper


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Philadelphia, Wilmington and Baltimore Railroad

Locale Pennsylvania, Delaware and Maryland
Dates of operation 1836 – 1916

Track gauge 4 ft 8 in (1435 mm) (standard gauge)

The Philadelphia, Wilmington and Baltimore Railroad
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Reading Company

Reporting marks RDG
Locale Delaware, Maryland, New Jersey and Pennsylvania
Dates of operation 1838 – 1976

Successor line Conrail
Track gauge 4 ft 8 in (1435 mm) (standard gauge)
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Centennial International Exhibition of 1876, the first official world's fair in the United States, was held in Philadelphia, Pennsylvania, to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia.
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National Academy of Sciences (NAS) is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine."

Overview

Origin

The Civil War caused a need for a national academy.
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Exposition Universelle (1867) was the Champ de Mars, the great military parade ground of Paris, which covered an area of 119 acres (48 ha) and to which was added the island of Billancourt, of 52 acres (21 ha).
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The Weltausstellung 1873 Wien was the large World exposition which was held in 1873 in the Austrian-Hungarian capital of Vienna.

A lot of special buildings were erected for this exposition, including the Rotunde
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Exposition Universelle of 1889 was a World's Fair held in Paris, France from May 6, to October 31, 1889.

It was held during the year of the 100th anniversary of the storming of the Bastille, an event traditionally considered as the symbol for the beginning of the French
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The maximum quotas:
Knight: 125,000
Officer: 10,000
Commander: 1,250
Grand Officer: 250
Grand Cross: 75
Precedence
Next (higher) None

Next (lower) Ordre de la Libération

The Légion d'honneur or
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