Patent Model - Device for Adjusting to a Right Angle Joiners' Squares
Maker and role
Linus Yale, Jr. (b.1821, d.1868), Patentee
Production date
Oct 19 1858
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Object detail
Media/Materials
Wood
Measurements
13 1/2 x 9 3/4 x 3 3/4" (34.3 x 24.8 x 9.5cm)
Description
Yale's patent "consists in providing the blade of the square with a lateral projection or arm proportioned to its length to serve as a lever by which through two screws at its extreme end the blade may be made readily to assume a position exactly at right angles to the handle." (Patent Number 21,861)
Collection
Object number
2015.14.247a,b
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