The Builder's Practical Guide: Containing a Complete Explanation of the Principles of Science, as Applied to Very Branch of Building ...: To which is Added an Appendix, Containing an Easy and Complete Introduction to the Scientific Principles of Geometry and Mensuration ...
1830 - 182 σελίδες
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Ansr arch architrave axis balusters bars bolts breadth brick-work bricks called carriages cast iron centre chord circle circular circumference colour constructed convex cornices curve cutting cylinder describe diameter dimensions distance divide draw edge ellipsis engine equal face feet find the Area fixed flat framed friction frustum groove half height hinge horizontal hypotenuse inches internal angle joining joints laid laths length lime malleable iron measured method miles an hour mitre mitre joint mortar mortise mortise and tenon mould multiply nails parallel parallelogram perpendicular pieces of timber placed plane plaster plaster of Paris plate Prob proportion quantity radius rafters rail railway rebate ribs right angles risers roof round sand scagliola sides slates soffit square stone straight straight-edge string stucco surface tenons thickness tie-beam tons transverse trapezium triangle upper velocity vertical waggon wall wheels wood workman
Σελίδα 682 - The square of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the other two sides.
Σελίδα 688 - MULTIPLY the radius, or half the diameter, by half the arc of the sector, for the area. Or, multiply the whole diameter by the whole arc of the sector, and take -f .of the product.
Σελίδα 688 - Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector. Then...
Σελίδα 684 - Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area.
Σελίδα 685 - Sides 5 6 7 8 9 10 To find the area of a polygon: Multiply the sum of the sides (perimeter of the polygon) by the perpendicular dropped from its center to one of its sides, and half the product will be the area. This rule applies to all regular polygons. FIGURE 3.57 Polygons.
Σελίδα 694 - To 3 times the square of the radius of the segment's base, add the square of its height ; then multiply the sum by the height, and the product by -5236, for the content.
Σελίδα 570 - The heart of a tree is never in its centre, but always nearer to the north side, and the annual coats of wood are thinner on that side. In conformity with this, it is a general opinion of carpenters that timber is stronger whose annual plates are thicker.
Σελίδα 635 - Indeed the greatest part of the mystery of painting stucco, so as to stand or wear well, certainly consists in attending to these observations ; for whoever has observed the expansive power of water, not only in congelation, but also in evaporation, must be well aware that when it meets with any foreign body obstructing its escape, as oil painting for instance, it immediately resists it, forming a number of vesicles or particles, containing an acrid...
Σελίδα 591 - ... lower floor : divide the rod into as many equal parts as there are to be risers, then, if you have a level surface to work upon below the stair, try each of the risers as you go on, and this will prevent any excess or defect ; for any error, however small, when multiplied, becomes of considerable magnitude, and even the difference of an inch in the last riser...