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 páginas |
Dentro del libro
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Página 642
... is also valued according to the time taken in painting it . APPENDIX . RAIL - ROADS AND LOCOMOTIVE ENGINES . AMIDST the various 642 THE OPEKATIVE MECHANIC Distemper Painting, Colours for Mensuration of Painters' Work.
... is also valued according to the time taken in painting it . APPENDIX . RAIL - ROADS AND LOCOMOTIVE ENGINES . AMIDST the various 642 THE OPEKATIVE MECHANIC Distemper Painting, Colours for Mensuration of Painters' Work.
Página 643
... ENGINES . AMIDST the various speculations of the day , perhaps none have more deservedly excited the public interest than that of the numerous projected lines of rail - road for diminish- ing the friction of carriages , and for ...
... ENGINES . AMIDST the various speculations of the day , perhaps none have more deservedly excited the public interest than that of the numerous projected lines of rail - road for diminish- ing the friction of carriages , and for ...
Página 645
... engine , upon pistons , movable within cylinders , into which the steam or the water of the boiler is allowed to enter . in order to press upon such pistons ; and which pistons are , by the intervention of certain levers and connecting ...
... engine , upon pistons , movable within cylinders , into which the steam or the water of the boiler is allowed to enter . in order to press upon such pistons ; and which pistons are , by the intervention of certain levers and connecting ...
Página 646
... engines which move over them , from the re- action which is often destructive to them . As the centre of gravity in a loaded coal - waggon is , from its shape , much elevated , there is generally a great waste of coal from the shaking ...
... engines which move over them , from the re- action which is often destructive to them . As the centre of gravity in a loaded coal - waggon is , from its shape , much elevated , there is generally a great waste of coal from the shaking ...
Página 647
... engine . The wheels which are constructed on this plan will be found , when compared with those already in use ( the weights of both being equal ) to be more durable ; for the arms , when made of malleable iron , being infinitely less ...
... engine . The wheels which are constructed on this plan will be found , when compared with those already in use ( the weights of both being equal ) to be more durable ; for the arms , when made of malleable iron , being infinitely less ...
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Términos y frases comunes
Ansr arch architrave axis balusters bisect bolts breadth brick-work bricks building called carriages cast cast iron centre circle circular circumference colour construction cornices cubic curve cylinder describe diameter dimensions distance divide dome draw edge ellipsis engine equal face feet fibres find the Area fixed flat framed friction frustum groove half height hinge horizontal inches internal angle joining joint joists king-post laid laths length lime malleable iron measured method miles an hour mitre mitre joint mortar mortise and tenon mould multiply notch parallel parallelogram perpendicular pieces of timber placed plane plaster plaster of Paris plate principal rafters Prob proportion purlines quantity queen-posts radius rail railway rebate ribs right angles risers roof round sides slates soffit square stone straight string stucco surface thickness tie-beam transverse trapezium triangle truss upper velocity vertical waggon wall wheels wood workman
Pasajes populares
Página 674 - The square of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the other two sides.
Página 664 - Proportion, when the ratio is the same between every two adjacent terms, viz. when the first is to the second, as the second to the third, as the third to the fourth, as the fourth to the fifth, and so on, all in the same common ratio.
Página 679 - 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.
Página 679 - Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector. Then...
Página 680 - Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area.
Página 681 - 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.
Página 688 - 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.
Página 565 - 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.
Página 627 - 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...
Página 587 - ... 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...