black plaque · London

Black plaque № 71887

Hydraulic Lock Gate Engine This machinery was installed in 1902, at the time the Greenland Lock was enlarged, to open and shut one of the lock gates by high pressure water power. It was heated by gas in winter to stop the water freezing.

Inscription drawn from imported open data, awaiting original TributeLegacy editorial.

Source: Open Plaques. Geographic data via OpenStreetMap.

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Data sources

Location records are drawn from open, licence-clean datasets, kept here with attribution and gratitude to the people who maintain them.

Open Plaques, dedicated to the public domain (CC0). See openplaques.org.
Wikidata, available under the CC0 1.0 Universal dedication.
Historic England, National Heritage List for England, used under the Open Government Licence v3.0. War memorial records are drawn from open community datasets (OpenStreetMap, Wikidata, NHLE) — never from the Commonwealth War Graves Commission, which is excluded.

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