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Hydraulics: a pressure equalizing device. Engraving by Eastgate.

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Please note, due to essential maintenance work to our systems, you will be unable to request items in our collections; apply for, renew or pre-register for a library membership; or use our computers, laptops and printers from 06:00 on Saturday 12 July until 06:00 on Sunday 13 July. Our library will remain open as usual. Thank you for your understanding.

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Quayle, inventor.

Images from the collections

Images about Quayle, inventor.

Works from the collections

Hydraulics: a pressure equalizing device. Engraving by Eastgate.