Charles Macintosh FRS (29 December 1766 – 25 July 1843) was a Scottish

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th ...

and the

inventor An invention is a unique or novel device, method, composition, idea or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an ...

of the modern waterproof

raincoat A raincoat is a waterproof or water-resistant garment worn on the upper body to shield the wearer from rain. The term rain jacket is sometimes used to refer to raincoats with long sleeves that are waist-length. A rain jacket may be combined with ...

. The

Mackintosh The Mackintosh or raincoat (abbreviated as mac) is a form of waterproof raincoat, first sold in 1824, made of rubberised fabric. The Mackintosh is named after its Scottish inventor Charles Macintosh, although many writers added a letter ''k' ...

raincoat (the variant spelling is now standard) is named after him.

Biography

Macintosh was born in

Glasgow Glasgow ( ; sco, Glesca or ; gd, Glaschu ) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe. In 2020, it had an estimated popul ...

, Scotland, the son of George Macintosh and Mary Moore, and was first employed as a clerk. Charles devoted his spare time to

science Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for ...

, particularly

chemistry Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions ...

, and before he was 20 resigned his clerkship to study under

Joseph Black Joseph Black (16 April 1728 – 6 December 1799) was a Scottish physicist and chemist, known for his discoveries of magnesium, latent heat, specific heat, and carbon dioxide. He was Professor of Anatomy and Chemistry at the University of Glas ...

at the

University of Edinburgh The University of Edinburgh ( sco, University o Edinburgh, gd, Oilthigh Dhùn Èideann; abbreviated as ''Edin.'' in post-nominals) is a public research university based in Edinburgh, Scotland. Granted a royal charter by King James VI in 15 ...

, and to take up the manufacture of chemicals. In this he was highly successful and invented various new processes. His experiments with

naphtha Naphtha ( or ) is a flammable liquid hydrocarbon mixture. Mixtures labelled ''naphtha'' have been produced from natural gas condensates, petroleum distillates, and the distillation of coal tar and peat. In different industries and regions ''n ...

led to his invention of waterproof rubberized fabric; the essence of his patent was the cementing of two thicknesses of cloth together with

natural rubber Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Thailand, Malaysia, and ...

. The rubber is made soluble by the action of the naphtha. The naphtha was prepared by

distillation Distillation, or classical distillation, is the process of separation process, separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distilla ...

coal tar Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It is a type of creosote. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasi ...

, with the

Bonnington Chemical Works The Bonnington Chemical Works was a pioneer coal tar processing plant established in Edinburgh. It was probably the first successful independent facility established for the integrated treatment of gasworks waste, and manufactured the residues o ...

being a major supplier. Macintosh married Mary Fisher in 1790, daughter of Alexander Fisher, a Glasgow merchant. They had one son, George Macintosh (1791–1848). In 1823, he was elected a fellow of the

Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...

for his chemical discoveries. In 1828, he became a partner with

James Beaumont Neilson James Beaumont Neilson (22 June 1792 – 18 January 1865) was a Scottish inventor whose hot-blast process greatly increased the efficiency of smelting iron. Life He was the son of the engineer Walter Neilson, a millwright and later engin ...

in a firm to exploit the latter's patent for the

hot blast Hot blast refers to the preheating of air blown into a blast furnace or other metallurgical process. As this considerably reduced the fuel consumed, hot blast was one of the most important technologies developed during the Industrial Revolution. ...

blowing of blast furnaces, which saved considerably on their fuel consumption. Charles died in 1843 and was buried in the

Glasgow Cathedral Glasgow Cathedral ( gd, Cathair-eaglais Ghlaschu) is a parish church of the Church of Scotland in Glasgow, Scotland. It is the oldest cathedral in mainland Scotland and the oldest building in Glasgow. The cathedral was the seat of the Archbisho ...

graveyard. He is buried with his parents in the ground of his great grandfather, John Anderson of Douhill,

Lord Provost of Glasgow The Right Honourable Lord Provost of Glasgow is the convener of the Glasgow City Council. Elected by the city councillors, the Lord Provost serves not only as the chair of that body, but as a figurehead for the entire city. The office is equiv ...

. His name is added to the 17th century monument which stands against the eastern boundary wall. A late 19th century secondary memorial also exists, in polished red granite, slightly to the north, where Charles is again mentioned on the grave of his son, George.

Legacy

On 29 December 2016, the search engine

Google Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. ...

marked the 250th anniversary of the birth of the inventor of the waterproof raincoat with a

Google doodle A Google Doodle is a special, temporary alteration of the logo on Google's homepages intended to commemorate holidays, events, achievements, and notable historical figures. The first Google Doodle honored the 1998 edition of the long-running an ...

of Macintosh in the rain.

References

External links

*
Charles Rennie Macintosh Society
{{DEFAULTSORT:Macintosh, Charles 1766 births 1843 deaths Fellows of the Royal Society Scientists from Glasgow Alumni of the University of Edinburgh Scottish chemists Scottish inventors Burials at Glasgow Cathedral

Biography

Legacy

References

Further reading

External links