Patent Model - Instrument for Laying out Rafters

Maker and role
Legrand Crofoot, Patentee
Production date
Aug 26 1856
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Object detail

Media/Materials
Wood, brass, copper
Measurements
4 x 17 7/8 x 3 1/4" (10.2 x 45.4 x 8.3cm)
Description
An advantage of Crofoot's patented invention is "that the planes of the bevels laid off will always bear the same relation to each other, but when independent bevels are used, any irregularity in the form of the rafter will be liable to change that relation." (Patent Number 15,600)
Object number
2015.14.175a,b
Currently on display?
No

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