THE STEEL SQUARE AND ITS USES. 



DIVISION B. 

 INTRODUCTORY. 



Having dealt, with the more simple matters 

 that can be dealt with by aid of the Steel Square, 

 we now take up some of the more difficult prob- 

 lems that can be solved by aid of this useful 

 tool. 



Among the problems and solutions offered, arc- 

 those of laying out braces, having regular o' 

 irregular runs, rafters, and roofing generally, 

 ascertaining the length of hips, their bevels, cut?, 

 pitches arid angles, jacks, cripples, ridges, pur- 

 lins, collar beams, and much other matter per- 

 taining to hip or cottage roofs. 



Gables, or saddle roofs are dealt with, also 

 mansard roofs, taper framing, odd bevels, splays 

 and otjier similar work. 



I introduce in this division a few remarks 

 regarding the fence made use of when laying out 

 rafters, stairs or other bevelled work. The de- 

 partment also shows how to lay-out stair strings 

 by aid of the square, and many other things that 

 will be found useful to the general workman. 

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