Samuel Cleland Davidson | |
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| Born | 18 November 1846 County Down, Ireland |
| Died | 18 August 1921 (aged 74) |
| Nationality | British |
| Citizenship | United Kingdom |
| Education | Royal Belfast Academical Institution |
| Occupation(s) | Engineer and inventor |
| Known for | Inventor of air conditioning and founder of the Sirocco Engineering Works in Belfast |
Sir Samuel Cleland Davidson, KBE (18 November 1846 – 18 August 1921) was a British inventor and engineer. Through his career in the tea import business he invented and patented a number of industrial machines and developed the earliest air conditioning systems. He founded the Sirocco Works in Belfast in 1881.