The Steam Hammer and the Clyde
Coming to Wonder Inventions on 7 December 2026.
In 1839 the Great Western Steamship Company cannot find a forge in Britain big enough to beat out the thirty-inch paddle shaft for the iron ship Great Britain, and the failure follows engineer Francis Humphrys from a Bristol dry dock to a Lancashire canal wharf, where James Nasmyth answers it with a drawing in his scheme book: a hammer lifted and let fall by steam. The design is sketched, tested with a dropped weight, traced by visitors — and then abandoned when Brunel throws out the paddles for a screw. Three years later Nasmyth, crossing France, walks into the forge at Le Creusot and finds his own hammer already standing and working, built by Eugène Schneider from a copy of his page. He races the tracing back to the Great Seal Patent Office in London, secures the patent in 1842, and sees the first British steam hammer erected at Lancefield Forge in Glasgow, where the Clyde at last gets shafts no other river can make — the story ending on the open water off Greenock, under Dumbarton Rock, with a finished paddle shaft swinging aboard.
About this story
- Length
- 10 illustrated pages
Who appears
- James Nasmyth — Engineer and founder of the Bridgewater Foundry; inventor of the steam hammer
- Francis Humphrys — Engineer to the Great Western Steamship Company, Bristol; the man with an unforgeable shaft
- Robert Wilson — Foreman of the Bridgewater Foundry erecting shop; Nasmyth's right hand
- Tam Kerr — Glasgow-born apprentice, fourteen, chalk-boy and runner
- Eugène Schneider — Master of the Schneider ironworks at Le Creusot, Burgundy
What happens on 7 December 2026
This story is finished and scheduled. On 7 December 2026 it opens here in full — every page illustrated, with narration you can listen to — as part of Wonder Inventions. Nothing on this page is a placeholder: the story exists, it has been reviewed, and this is its address.
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