Carpentry Made Easy, Or, The Science and Art of Framing, on a New and Improved System: With Specific Instructions for Building Balloon Frames, Barn Frames, Mill Frames, Warehouses, Church Spires, Etc. Comprising Also a System of Bridge Building; with Bills, Estimates of Cost, and Valuable Tables. Illustrated by Thirty-eight Plates and Near Two Hundred Figures
J. Challen & Sons, 1859 - 134 σελίδες
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12 feet 12 inches 1nch alternate angles altitude arch beam Balloon Frames base beam bridge Bill of Timber blade bolts bridge building centre circumference common rafter corner counter braces cripple stud cross timbers designed diagonal width diameter distance divided draw bores equal angles equal sides equiangular exhibits extracting the square feet long foot girder given half the width hence hip rafters hip roof hypotenuse inches rise inches square inscribed angle interior angles intersection iron lower end bevel manner multiplied opposite exterior parallel parallelogram perpendicular polygon principal rafters proportion Proposition purlin plates purlin post brace rafters required rectangle represented ridge pole right-angled triangle Scholium secant line side bevel sills span spiked spire square root straight lines meet straining beam supporting rods tenons Theorem thickness tie beam tongue truss upper chord upper end bevel upper joists
Σελίδα 29 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Σελίδα 19 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Σελίδα 30 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Σελίδα 29 - A straight line falling on parallel straight lines makes the alternate angles equal to one another, the exterior angle equal to the interior and opposite angle, and the interior angles on the same side equal to two right angles...
Σελίδα 32 - The straight line which bisects the vertical angle of an isosceles triangle is perpendicular to the base.
Σελίδα 20 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Σελίδα 19 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 19 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle.
Σελίδα 35 - If two triangles have two sides and the included angle of the one, equal to two sides and the included angle of the other, each to each, the two triangles will be equal in all their parts." Axiom 1. "Things which are equal to the same thing, are equal to each other.