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RefNoCLP/1/11/2
LevelItem
TitleDiagram, engine for grinding hyperbolic glasses by Christopher Wren
Date[1669]
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
PhysicalDescriptionInk on paper
AccessStatusOpen
RelatedMaterialDOI: 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
RelatedRecordRBO/4/20
CLP/1/11/8
CLP/1/11
CLP/1/1
Fellows associated with this archive
CodePersonNameDates
NA8299Wren; Sir; Christopher (1632 - 1723); architect, astronomer, and mathematician1632 - 1723
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