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The Royal Society: Science in the Making

Unpublished diagram, 'Extracts relating to some new mechanical inventions' by Baron [Karl Freiherr] von Drais of Mannheim

Reference number: AP/11/7

Date: 1820s

Description

Figure showing a triangular structure or frame with parts labelled A, a, B, b, C, and D, with a grid drawn below. There are no captions or labels to suggest the type of structure this diagram represents. The title page suggests that there was text ['extracts'] originally accompanying this figure. A manuscript annotation on the title page also reads '(To be presented to the Society on Thursday)'.

Subject: Scientific Instruments / Engineering

Reference number
AP/11/7
Earliest possible date
1820s
Physical description
Ink on paper
Page extent
2 pages
Format
Diagram

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Citation

Unpublished diagram, 'Extracts relating to some new mechanical inventions' by Baron [Karl Freiherr] von Drais of Mannheim, 1820s, AP/11/7, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_11_7/unpublished-diagram-extracts-relating-to-some-new-mechanical-inventions-by-baron-karl-freiherr-von-drais-of-mannheim, accessed on 05 September 2026

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https://makingscience.royalsociety.org/items/ap_11_7/unpublished-diagram-extracts-relating-to-some-new-mechanical-inventions-by-baron-karl-freiherr-von-drais-of-mannheim

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  • Archived Papers

    The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

    Dates: 1768 - 1989

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