1240 



INDEX TO VOL L 



[MECHA.XIOS. 



Chimney of a steam-boiler, 851. 



Circular motion. 740. 



Circular sections have not so great torsive 



strength as squire, 814. 

 Circumferrneei, how to find, 908. 

 Clay execrating, power developed in, 818. 

 Clepsydra, or water-dock, 766. 

 Clipping as a strain, 795, 815. 

 Clock, astronomical, 692. 

 Clock machinery, 838. 

 Clock, magic, 716. 

 Clock, striking apparatus of a, 838. 

 Clock, water, 766. 

 Clock-work, regulation of, 782. 

 Clocks have the most ingenious devices for 



regulating power, 782. 

 Clutch, the friction, 883. 

 Clutch to couple or uncouple shads, 896. 

 Cogs, 727, 887. 



Cohesion of a body, what it is, 795. 

 Cohesive attraction follows a regular law, 



800. 



Coil of rope, its friction, 903. 

 Collision of bodies, 745. 

 Colouring drawings, 790. 

 Columbus, his poising an egg, 712. 

 Columns of brickwork, experiments, 801. 

 Columns of cast-iron, their strength, 801. 

 Columns of stone, experiments, 801. 

 Columns of wood, experiments on the 



strength of, 801. 

 Combined engines, 876. 

 Components of force, 693. 

 Compression, 800. 



Compression, effects of, on beams, 806. 

 Compression, experiments have as yet 



shown no regular law of, 800. 

 Compression, influence of height on, 800. 

 Compression of elastic fluids, 768. 

 Compression of fibres in beams, 803. 

 Concave surfaces, fluid pressure on, 752. 

 Condensation of steam, 845. 

 Condenser, air, 7 7 1 . 

 Condenser in a steam-engine, 871. 

 Condensing steam-engines (See Steam. 



engines). 



Cone ascending an inclined plane, 713. 

 Cone-drawing, 789. 

 Cone-frustrum, developed in drawing, 



789. 



Cone, to find its centre of gravity, 718. 

 Cone-vessel, fluid pressure in a, 753. 

 Cones, projection of the shadows of, 792. 

 Conical pulleys, their action, 886. 

 Conical surfaces developed in drawing, 



789. 



Connecting-rod of a steam-engine, 860. 

 Construction, elegance in, 779. 

 Contraction of cast-iron in cooling, 808. 

 Copper, alloyed with tin, used to diminish 



friction in bearings, 859. 

 Copper bars, experiments on their 



strength, 797. 

 Copper (cast), data, for calculating the 



strength, 798. 



Copper, crushing pressure, 802. 

 Copper, table of torsire strength, 814. 

 Copper (wrought), data for calculating 



the strength of, 798. 

 Cordage-making machinery, 783. 

 Cords, considered as perfectly flexible and 



inextensible, 693, 719. 

 Cords used for conveying motion, 887. 

 Corn-thrashing and winnowing by steam 



880. 



Cornish boilers, 848. 

 Corniih engines, 874, 878. 

 Cornish granite, 802. 

 Corrugating adds to the stiffness of plates, 



Cost (economy of), the chief study of me- 

 chanics, 779. 



Cotes's calculation of the weight of the 

 atmosphere, 771. 



Cotton, machinery for preparing, 783. 



Cotton manufacture, one horse-power 



sufficient for 100 spindles, 880. 

 Couples, theory of, 703. 

 Coupling by friction, 900. 

 Coupling rods, manner of, 816, 883. 

 Coupling shafts described, 883. 

 Crab, a machine, 783. 

 Crane, a machine for raising weights, 783. 

 Crane, friction-break of a, 782. 

 Crane, hydraulic, 840. 

 Cnne, method of stopping the, 899. 

 Crane, the friction of ropes or chains 



in a, 903. 



Crank for converting motion, 894. 

 Crank, its action and construction. 858, 



el Mtq. 

 Crank-shaft of a steam-engine, conditions 



of rotation, 814, 859. 

 Cross-pulleys for reversing motion, 897. 

 Crowbar, 719. 

 Crown wheel, 728. 

 Crushing apparatus, effects of, 783. 

 Crushing force, table of experiments, 802. 

 Crushing ore machinery at mines, 878. 

 Cubes, drawing, 784. 

 Currents of water, computation of, 826. 

 Curved surfaces, projection of the 



shadows, 792. 

 Curves intersecting, mode of drawing, 



789. 



Curves, projection of, 787. 

 Curves, round, the scales for measuring, 



795. 



Curving timber, machinery for, 783. 

 Cutting apparatus, 783. 

 Cylinder, drawing, 785. 

 Cylinder, floating, its equilibrium, 759. 

 Cylinder of steam-engine described, 854, 



ft ley. 



Cylinder, projection of the shadows, 792. 

 Cylinder represented geometrically shaded, 



793. 



DAM across valleys, 833. 



Dam or reservoir of water, 833. 



Dam to check a stream, 833. 



Dam, to find the pressure sustained by a, 

 751. 



Day, sidereal, G92. 



Day, solar, 692. 



Deal, table of strength of, 810. 



Deal, white, crushing pressure of, 802. 



Decanter, pressure of fluids in a, 753. 



Deflection of beams under loads, 807. 



Density of bodies, 742. 



Desagulier's method for estimating the 

 centre of gravity, 714. 



Development, process in drawing, 789. 



Direct acting engines, 864. 



Direction of forces, 694. 



Discharge of fluids (See Fluids). 



Distance and time the elements of velo- 

 city, 781. 



Distance travelled, an element for mea- 

 suring power, 781. 



Divider, a drawing instrument, 795. 



Dividing-machines, 898. 



Diving-bell, 774. 



Docks, pumping in, 879. 



Double-beat valve in steam-engines, 855. 



Dragging loads, 818. 



Drainage of hills collected in reservoirs, 

 825. 



Drainage performed by windmills, 825. 



Draining, form of engine employed, 874. 



Draining land by steam, 880. 



Draughtsman should draw all details full 

 site, 795. 



Drawing a hexagonal prism, 787. 



Drawing cubes and cylinders, 785. 



Drawing elevations, 785. 



Drawing-instruments, 794. 



Drawing land surveys, what scales are 

 used, 795. 



drawing, mechanical, its objects, 784. 



Drawing-pens, 795. 

 Drawing sections, 786. 

 Drawing solids, 791. 

 Drawing-squares, 794. 

 Drawing teeth of wheels ; rules for, 889. 

 Drawing the exterior of solid bodies, 785. 

 Drawing the interior of bodies, 785. 

 Drawing unfolded surfaces, 789. 

 Drawings, full size, their object, 795. 

 Drawings (working), what are, 792. 

 Drilling machinery, 783. 

 Driving machinery, 880, 882, el teg. 

 Drum to convey motion, 885. 

 Drunken thread of a screw, 787. 

 D-slide in steam-engines, 855. 

 Duchayla's demonstration of the paral- 

 lelogram of forces, 695. 

 Dyeing machinery, 783. 

 Dynamical and statical mechanics, 779. 

 Dynamics, 689, 733, el ley. 

 Dynamics, momentum in, 701. 

 Dynamometers, 691, 900. 



EARTH, centrifugal force at the surface 



of the, 741. 



Earth, equatorial diameter of the, 747. 

 Earth once in a fluid state, 742. 

 Earth, polar diameter of the, 747. 

 Eccentric, action of the, 861. 

 Eccentric for converting motion, 891. 

 Eccentric link motion, 862. 

 Eccentric, the throw of the, 861. 

 Education, general, should embrace prac- 

 tical mechanics, 783. 

 Egyptian architecture, then U not fouud 



an arch in, 778. 

 Elastic bodies in collision, 745. 

 Elasticity a source of power, 781. 

 Elasticity employed for giving motion, 



839. 

 Elasticity exercised in resisting strain, 



795. 



Elasticity in fluids, 748. 

 Elasticity, modulus of, 746. 

 Electricity a source of mechanical power, 



842. 

 Elephants employed for carrying and 



dragging, 818. 



Elevations, drawing, 786, el teg. 

 Ellipse employed for gearing, 893. 

 Elm, crushing pressure, 802. 

 Elm, table of strength, 810. 

 Embankments, how to be constructed, 



752. 



Emery used in polishing surfaces, 902. 

 Engine acting by the decomposition of 



water, 842. 

 Engines are the products of dynamical 



mechanics, 779. 



Engines (steam) (See Steam-engines). 

 Envelopment, process in drawing, 789. 

 Equator, force of gravity at the, 741, 747. 

 Equatorial diameter of the earth, 747. 

 Equilibrium neutral iu flouting bodies, 



758. 



Equilibrium of a floating body, 758. 

 Equilibrium of a material particle, 693. 

 Equilibrium of a rigid body, 700. 

 Equilibrium of a rotating fluid, 761. 

 Equilibrium or rest, 690. 

 Equilibrium, stable and unstable, 712. 

 Equilibrium, stable and unstable, in 



floating bodies, 758. 

 Escapement in a clock, 839. 

 Escapement-wheels, methods for moving, 



895. 

 Estuaries, tidal, their mechanical power, 



Ether rises in vapour at low temperature, 



842. 



Excise hydrometer to test spirits, 757. 

 Exploding strain, 1'J'J. 

 EiploMon of gunpowder, &c., as a source 



of power, 811. 

 Extension of materials, 808. 



