Why Were Chainsaws Invented: Chainsaws was invented in the 18th century by two Scottish surgeons, John Aitken and James Geoffrey a solution they could employ when faced with difficult childbirths. Instead of using a knife to widen the pelvic area through cartilage and bone to remove a trapped baby, the duo developed a chainsaw to make cutting easier. The procedure was dubbed a symphysiotomy and remained in use in the medical field. 

A precursor of the chain saw familiar today in the timber industry was another medical instrument developed around 1830 by German orthopaedist Bernhard Heine. This instrument, the osteotome, had links of a chain carrying small cutting teeth with the edges set at an angle, the chain was moved around a guiding blade by turning the handle of a sprocket wheel. As the name implies, this was used to cut bone.

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