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Boulton and Watt

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Former type
  
General partnership

Defunct
  
c. 1895

Industry
  
Engineering

Boulton and Watt

Founded
  
Birmingham, England (1775)

Founder
  
Matthew Boulton and James Watt

Key people
  
Matthew Boulton James Watt William Murdoch

The engine partnership

The partnership was formed in 1775 to exploit Watt's patent for a steam engine with a separate condenser. This made much more efficient use of its fuel than the older Newcomen engine. Initially the business was based at the Soho Manufactory near Boulton's Soho House on the southern edge of the then-rural parish of Handsworth. However most of the components for their engines were made by others, for example the cylinders by John Wilkinson.

Contents

In 1795, they began to make steam engines themselves at their Soho Foundry in Smethwick, near Birmingham, England. The partnership was passed to two of their sons in 1800. William Murdoch was made a partner of the firm in 1810, where he remained until his retirement 20 years later at the age of 76. The firm lasted over 120 years, albeit renamed "James Watt & Co." in 1849, and was still making steam engines in 1895, when it was sold to W & T Avery Ltd..

Nurturing talent

The business was a hotbed for the nurturing of emerging engineering talent. Among the names which were employed there in the eighteenth century were James Law, Peter Ewart, William Brunton, Isaac Perrins, William Murdoch, and John Southern.

Archive

The firm left an extremely detailed archive of its activities, which was given to the city of Birmingham in 1911 and is kept at the Library of Birmingham. The library has since obtained various other related archives.

An additional archive was donated to the Boulton and Watt collection in 2015. It represents the research carried out by John Richardson (Accession number 2015/049) The archive includes: A copy of his completed P.h.D.thesis submitted to the University of Reading in 1989. The original thesis remains the property of the University of Reading.

Display folders containing text and drawings from his detailed examination of the large number of portfolios of engineering drawings

Folders containing detailed handwritten notes on all portfolios examined. This information includes portfolio number, dates of drawings and comments on techniques used. Where applicable, the records cross reference with letters, books and other related literature on the firm of Boulton and Watt.

A selection of DVDs containing all text and the many drawings studied are also included in the archive.

This research is primarily concerned with the contribution of the firm of Boulton and Watt to engineering drawing used in design and manufacture.

The Australian Project

An opportunity arose in 1984 to evaluate the use of Boulton & Watt drawings made two hundred years earlier when Dr Richardson was asked to help the Museum of Applied Arts and Sciences, New South Wales Australia who were planning to restore and erect a Boulton and Watt engine. In the course of restoration the engine had been completely dismantled and the work revealed that the cylinder, valve gear, condenser and air pump had all been modified at least once from the original design. Reports from Australia confirmed that the engine was erected in the Power House Museum, Ultimo, New South Wales. This engine was originally designed and built for Samuel Whitbread in 1784 and the job portfolio (B & W 4) contains forty four drawings that relate to it. Copies of the different types of drawings were made and sent out; they provided all the necessary information required to re assemble and erect the engine. (Dr Louise Crossley 1984)

Preserved operational engines

  • Smethwick Engine, Thinktank science museum, Birmingham, manufactured 1779.
  • Whitbread Engine, Powerhouse Museum, Sydney, manufactured 1785, 25 inch (0.64 m) bore, 72 inch (1.83 m) stroke.
  • Crofton Pumping Station manufactured 1812, 42.25 inch (1.07 m) bore, 84 inch (2.13 m) stroke.
  • Kew Bridge Steam Museum manufactured 1820, 64 inch (1.62 m) bore, 96 inch (2.44 m) stroke.
  • References

    Boulton and Watt Wikipedia