Skip to content

Please be aware that some material may contain words, descriptions or illustrations which will not reflect current scientific understanding and may be considered in today's context inaccurate, unethical, offensive or distressing.


Brennand presents a series of geometrical figures and mechanical problems concerning Watt's motion.

Annotations in pencil throughout. Includes geometrical and trigonometrical diagrams throughout the text.

Subject: Mathematics / Engineering / Mechanics

Received 2 January 1893. Read 26 January 1893. Communicated by C B [Charles Baron] Clarke.

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 52 of the Proceedings of the Royal Society as 'On the three-bar motion of watt'.

Reference number
Earliest possible date
Physical description
Ink and graphite pencil on paper
Page extent
164 pages

Creator name

William Brennand

Use this record


William Brennand, Unpublished paper, 'On the three-bar motion of Watt' by William Brennand, 1893, AP/69/4, The Royal Society Archives, London,, accessed on 27 May 2024

Link to this record

Embed this record

<iframe src="" title="Unpublished paper, 'On the three-bar motion of Watt' by William Brennand" allow="fullscreen" frameborder="0" width="100%" height="500px"></iframe>

Related Publications

Related Fellows

Explore the collection

  • Archived Papers

    Dates: 1768-1989

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is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

    View collection