Construction & Infrastructure
Lewis stone lifter
A lewis fits into a specially cut socket in a stone block so the block can be lifted. Different wedge and pin arrangements grip the stone as tension is applied through the lifting eye.
About this artifact
A lewis fits into a specially cut socket in a stone block so the block can be lifted. Different wedge and pin arrangements grip the stone as tension is applied through the lifting eye.
Sources & image credits
Historical photograph, illustration or documented physical example; the source caption identifies the depicted object.
Image: CWO_(16).jpg
Creator: http://en.wikipedia.org/wiki/User:Cathetus
License: CC BY-SA 3.0
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