Useful information for architects, engineers, and workers in wrought iron (1886)
Phoenix Iron Company · Philadelphia : Printed by J.B. Lippincott Co. · leaf 110
hof the purlins above them, leaving all others with a littleplay in the notches, sufficient provision will be made forany alteration of length in the roof, due to changes oftemperature. When wooden purlins are employed they may be put be-tween the rafters and held in place by tie rods, or on topand… … 107 THE PHCENIX IRON COMPANY, wood being laid on the top of the beam from purlin to pm%lin. The sheathing-boards and covering are then naileddown on top of all in the usual manner. When desired, ventilators or lanterns are added alongthe ridge of the roof, as seen in Fig. 15, the attachmentsbeing…
Wrought-iron · Iron, Structural · Building, Iron and steel · Building
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