Jackson, Frank G · London : Chapman & Hall · leaf 221
illustrating the method of constructing, on the Hypothenuseof a Right-angled Triangle, a Square equal in area to the squares describedon the sides which* contain the right angle. (Euclid, book i., prop, xlvii.) Section 3.—Apparatus for practically describing the Cycloid, Epicycloid,Hypocycloid, and… … This Stand has a guard plate, B,which so moves forward as to pre-vent the set screw from damaging theholder. The construction of the joint is suchas to render movement impossiblewhen set by the screw. It has a second action, so that whenthe model is set at the desired angleit can be moved to the…
Decoration and ornament
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