More like 'The carpenters' steel square, and its uses. : being a description of the square, and its uses in obtaining the lengths and bevels of all kinds of rafters, hips, groins, braces, brackets, purlins, collar beams, and jack-rafters ; also its application in obtaining the bevels and cuts for hoppers, spring mouldings, octagons, stairs, diminished stiles, etc., etc., etc.'