Diderot on Anchor Forging.
DIDEROT, Denis. Forge des Ancres (Anchor Forging) Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers. Plates vol. 7 Paris (1769)
Folio, 253 x 393mm. 16 pages of descriptive text & 13 loose plates with their accompanying 8 text sheets from the volume of plates. Slight browning to margins, a little spotting otherwise very good.
The 13 plates and descriptive text for the entry of Forge des Ancres from volume VII of plates. Plates are numbered 1-13
6 pages (162, & 442-446) from volume I of the Encyclopédie (1751) including Ancre d'affourche and Les ancres en général
3 pages (339, 355 & 418) from volume II of the Encyclopédie (1751) including information on Boussoirs soutenir l'ancre and Lorsque le cable s'est rompu and Brider l'ancre
1 page (689) from volume V of the Encyclopédie (1755) including Enjabler une ancre
1 page (860) from volume VII of the Encyclopédie (1757) including Les grappins
1 page (463) from volume VIII of the Encyclopédie (1765) including Jas d'ancre
2 pages (187 & 188) from volume XII of the Encyclopédie (1765) including Patte d'une ancre
1 page (806) from volume XVI of the Encyclopédie (1765) including Ancre des Chinois
1 page (188) from volume I of the Supplément à l'Encyclopédie (1776) which includes further information onAncre d'affourche
With some browning to a few leaves.
This impressive suite of plates depicts the construction of enormous anchors and the gigantic forges in which they are created. Massive levers and pulleys are used to move the components and the finished anchors, which would be used on the battleships of their day. Also included are many relevant text entries, most of which were contributed by Jacques-Nicolas Bellin, a French philosophe and hydrographer. These include the main entry for Ancre, Grappin, Jas D'Ancre, and those on other processes and parts. Other articles include those by Chevalier Louis de Jaucourt and Chevalier de la Coudraye, a naval officer and politician.