Record

Reference numberCLP/1/11/2
LevelItem
TitleDiagram, engine for grinding hyperbolic glasses by Christopher Wren
Date1669
DescriptionDrawing of Christopher Wren's 'engine' for grinding hyperbolic glasses. This follows on from Wren's publication in Philosophical Transactions of the Royal Society, vol. 4, no. 48 (1669), which shows that a section through the axis of a cylinder was a hyperbolic surface, which could then be applied to create a machine to grind hyperbolic lenses. This drawing, however, is not much more than a geometric diagram with shading, and does not take into account the wheels, cogs and other arrangements necessary to translate this into an actual machine.

Includes 2 cylinder with a hyperbolic surface and a disk.

Parts are lettered.

Subject: Engineering / Geometry
LanguageLatin
Extent1p
FormatDiagram
Physical descriptionInk on paper
Access statusOpen
Related materialDOI: 10.1098/rstl.1669.0069
DOI: 10.1098/rstl.1669.0046
DOI: 10.1098/rstl.1669.0018
Printed in 'Philosophical Transactions', vol 4, no 48, p 961 (1669)
RBC/3/150
JBO/4/65
Related records in the catalogueRBO/4/20
CLP/1/11/8
CLP/1/11
CLP/1/1
Fellows associated with this archive
CodeNameDates
NA8299Wren; Sir; Christopher (1632 - 1723); architect, astronomer, and mathematician1632 - 1723
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