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Auction archive: Lot number 29

A JOSEPH WHITWORTH AND CO BRASS AND STEEL BENCH MICROMETER,

Estimate
£1,500 - £2,000
ca. US$1,865 - US$2,487
Price realised:
n. a.
Auction archive: Lot number 29

A JOSEPH WHITWORTH AND CO BRASS AND STEEL BENCH MICROMETER,

Estimate
£1,500 - £2,000
ca. US$1,865 - US$2,487
Price realised:
n. a.
Beschreibung:

A JOSEPH WHITWORTH AND CO BRASS AND STEEL BENCH MICROMETER, English, third quarter of the 19th century, signed Sir Joseph Whitworth and Co Limited Manchester, on iron bed plate with worm screw adjustment operated by cast brass wheel at either end, 27in (69cm) long Fußnoten Sir Joseph Whitworth, 1st Baronet (1803 - 1887) was an English engineer, entrepreneur, inventor and philanthropist. In 1841, he devised the British Standard Whitworth system, which created an accepted standard for screw threads. Whitworth also created the Whitworth rifle, often called the "sharpshooter" because of its accuracy and considered one of the earliest examples of a sniper rifle. However, the principal contribution of this exceptionally talented engineer was his introduction of new standards of accuracy in manufacturing to a degree previously unknown. By 1830, a skilled mechanic could be expected to work to an accuracy of a 'bare sixteenth' of an inch. By 1840, though, thanks to Joseph Whitworth, an accuracy of one ten-thousandth of an inch was a practical proposition. Subsequently, Whitworth devised an instrument – a bench micrometre – that could measure to one millionth of an inch, earning him international fame. Upon his death in 1887, he bequeathed much of his fortune for the people of Manchester, with the Whitworth Art Gallery and Christie Hospital partly funded by Whitworth's money. Provenance: Property of The British Engineerium, Hove.

Auction archive: Lot number 29
Auction:
Datum:
25 Sep 2019
Auction house:
Bonhams London
London, Knightsbridge Montpelier Street Knightsbridge London SW7 1HH Tel: +44 20 7393 3900 Fax : +44 20 7393 3905 info@bonhams.com
Beschreibung:

A JOSEPH WHITWORTH AND CO BRASS AND STEEL BENCH MICROMETER, English, third quarter of the 19th century, signed Sir Joseph Whitworth and Co Limited Manchester, on iron bed plate with worm screw adjustment operated by cast brass wheel at either end, 27in (69cm) long Fußnoten Sir Joseph Whitworth, 1st Baronet (1803 - 1887) was an English engineer, entrepreneur, inventor and philanthropist. In 1841, he devised the British Standard Whitworth system, which created an accepted standard for screw threads. Whitworth also created the Whitworth rifle, often called the "sharpshooter" because of its accuracy and considered one of the earliest examples of a sniper rifle. However, the principal contribution of this exceptionally talented engineer was his introduction of new standards of accuracy in manufacturing to a degree previously unknown. By 1830, a skilled mechanic could be expected to work to an accuracy of a 'bare sixteenth' of an inch. By 1840, though, thanks to Joseph Whitworth, an accuracy of one ten-thousandth of an inch was a practical proposition. Subsequently, Whitworth devised an instrument – a bench micrometre – that could measure to one millionth of an inch, earning him international fame. Upon his death in 1887, he bequeathed much of his fortune for the people of Manchester, with the Whitworth Art Gallery and Christie Hospital partly funded by Whitworth's money. Provenance: Property of The British Engineerium, Hove.

Auction archive: Lot number 29
Auction:
Datum:
25 Sep 2019
Auction house:
Bonhams London
London, Knightsbridge Montpelier Street Knightsbridge London SW7 1HH Tel: +44 20 7393 3900 Fax : +44 20 7393 3905 info@bonhams.com
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