1MI 



INDEX TO VOL. I. 



Table of the eolMaive trao|th of vari<.ui 



malerialt, 797. 

 TsbU of UK cohesive streofth of wrought- 



iroo bum. 797. 

 TiMe-engine described. 866. 

 Table of angle* at UM null of a windmill, 



Table of friction, 902. 



Table of pnMurea and temperature of 



Inn. 845. 



Table of icrew.gearing for the lathe, 897. 

 Table of (be misting power of material! 



to crashing force 

 Table of torsive strength of cylindrical 



haft*. 814. 



Table of Telocity for water-power, 826. 

 Table* and rule* for calculating quanti- 

 ties 905. 



Tablea of transverse strengths, 810. 

 Tablea of weigbta. Ac , 905. 

 Tacking, an important part of the tailor's 



art, 821. 

 Tackle, 783. 



Tail. water, precaution for a free flow, 830. 

 Tail water, what it is, 828. 

 Tallow, machinery for [in-paring, 783. 

 Tangential force, 742. 

 Tate'a air-pump, 776. 

 Teak, data for calculating the strength, 



797. 



Teak, table of strength of, 810. 

 Tearing asunder iron ban, force required, 



816. 



Tearing asunder of fibres in beams, 803. 

 Teeth-cutting machines, 898. 

 Teeth of wheels, engineers do not agree as 



to forms, 889. 



Teeth of wheels, rules for retting out, 889. 

 Teeth of wheels, their theory, 887. 

 Telegraph, electric, its importance, 842. 

 Temperature affects the volume of bodies, 



748. 



Temperature of iteam, 844. 

 Tempest, to find the pressure of a, 820. 

 Tenacity impaired by long strain, 797. 

 Tender of a locomotive, 881. 

 Tendon, its action, 817. 

 Tension, 693, 796. 

 Tension, effect of, 806. 

 Tension of fibres in beams, 804. 

 Tension of materials, 796. 

 Tension of strings, 744. 

 Tension, the resistance of squire bars 



greater than that of circular, H14. 

 Tensive strain of beams, how met, 809. 

 Textile fabrics, machinery for, 783. 

 Textile fabrics, methods of gearing em- 

 ployed in manufacturing 

 Thames river, it* velocity, 828. 

 Thickness of material* i* not always 



strength, 799. 



Thrashing by steam power, 880. 

 Thread, drawing the, of a screw, 788. 

 Throttle-valve, water, 838. 

 Throttle-valve, how put in action, 857. 

 Throttle. valve in steam-engines, 857. 

 Throw of the crank, 861. 

 1 brow of the eccentric, 861. 

 Tidal currents, their velocities, 833. 

 Tide-mills, 828. 

 Tide*, when first converted into mechani- 



cal force, 828. 

 Til --miking by steam, 880. 

 Tili-hammen used in iron manufactures, 



891. 

 Timber, data for calculating the strength, 



797. 



Timber, machinery for preparing, 783. 

 Time, an element for measuring power, 



Time and distance the element* of velo- 

 city, 781. 



Time, apparatus for measuring, 782. 



Time as measure of mechanical work, 

 7H1. 



Time, unit of, 692. 



Tin alloyed with copper used to diminish 

 friction. 859, 902. 



Tin (cast) data for calculating the strength, 

 797. 



Tin, crushing pressure, 802. 



Tin employed in bearings, 859, 902. 



Tin, table of friction, 902. 



Tin, table of torsive strength, 814. 



Tin, used for shift-bearings, 902. 



Tinting a drawing, 793. 



Tonga are levers, 719. 



Tools are the products of dynamical me 

 chanics, 779. 



Tooth-wheel. 719,728,888. 



Tooth. wheels, drawing, 787. 



Toothed gearing, reversing by, 896. 



Toothed wheel* described, 888. 



Torricelli's experiment on atmospheric 

 pressure, 769. 



Torricelli the first recogniser of atmosphe- 

 ric pressure, 769. 



Torsion, 812. 



Torsion, table of strengths. 814. 



Torsion, the resistance of a cylindrical 

 shaft to, 812. 



Towers at Pisa and Bologna, 714. 



Toys, on the principle of unstable equi- 

 librium, 715. 



Traction-engines, steam, for common 

 roads, 866. 



Trains, railway, breaks for, 901. 



Translation in space, 747. 



Transverse strength, 802, 810. 



Travellers and tackle, a machine, 783. 



Treadmill, how it is a penal labour of 

 severe character, 818. 



Trees, the force which sustains their tap, 

 750. 



Triangles, fluid pressure* on, 751. 



Troy-weight, 905. 



T-shaped girders, 804. 



Tube, capillary, its diameter, 763. 



Tube-girders, 809. 



Tubes, equilibrium of fluids in, 760. 



Tubes, fixing in steam-boilers, 851. 



Tubular boilers (See Boilers). 



Tubular bridge, Britannia, 805809. 



Tubular shafts, their advantage. 814. 



Turbine applied to steam power, 877. 



Turbine-wheel, 834. 



Turbine-wheel, estimated power of, 835. 



Turbine-wheel described, 835. 



Turning iron, 880. 



Turning-lathe, treadle of the, 720. 



Turning-machines, methods for moving, 

 895. 



Turning-machinery, 783. 



Twisting (see also Torsion), 795. 



Twisting-force, 812. 



UNDEBSROT water-wheels, 825. 

 Undershot wheels with vertical floats, 



827. 



Unit of force, length, time, Ac., 691, 692. 

 Universal joint for coupling shafts, 



884. 



VACUUM valve in boilers, 854. 



Valve, double-beat, 855. 



Valve, relief, 856. 



Valve, safety, 852. 



Valve, shut-off, 857. 



Valve, slide, 855. 



Valve, stop, 857. 



Valve, vacuum, 854. 



Valve* for opening and closing water- 

 channels, 833. 



Valve* of the condenser, 872. 



Valves, self-acting, in the steam-engine, 

 854. 



Vanes or boards of windmills, 822. 



Vapour generated from liquids by heat, 

 843. 



Vapours, their latent heat, 872. 



Vegetable products, machinery for pre- 

 paring, 783. 



Vrliirles for transport, 783. 



Vehicles propelled by kites over ice, 821. 



Vi-iu in a marble pillar, an element of 

 fracture, 821. 



parallelogram of, 738. 



Vi-loritjr, 735. 



ly and weight are convertible, 781. 



Velocity is distance and time, 761. 



Velocity of falling bodies. 837. 



Velocity of projectiles, 738, 8 1 ! . 



Velocity of the wind, tables of, 820. 



Velocity of toothed wheels, rules, 888. 



Velocity of water-power, 826. 



Vena eontracta in fluids flowing through 

 orifices, 764. 



Vena eontracta, observation by Newton, 

 764. 



Vertical lines, what are so called. 751. 



Vessel, irregular, how to ascertain it* 

 capacity, 755. 



Vessels for water-carriage, 783. 



Vessels, steam, propulsion of, 881. 



Vessels, their form, 821. 



Vessels, their motion in fluid, 821. 



Va rira, 746. 



Volume, 742. 



Volume affected by temperature, 758. 



Volume determined from specific gravity, 

 755. 



WALK of man and animals, 714, 715. 

 Walking, the action of, 714, 715. 

 Washing-machines, methods for moving, 



895. 



Watch-spring, its action described, 839. 

 Water a source of mechanical force, 817. 

 Water a source of power, 781, 825. 

 Water attracted in general by solids, 



762. 

 Water, channels for conveying it to mills, 



833. 



Watt-r-clock, 766. 



Water, computation of the flow of cur- 

 rents of, 826. 



Water, computed power of streams, 834. 

 Water, contrivances for raising, 835. 

 Water converted into steam, occupies 



1,600 time* its bulk, 845. 

 Water conveyed by pipes Irom a reservoir, 



761. 



Water, distilled, its gravity, 750. 

 Water, engine acting by the decomposition 



of, 842. 



Water-engines, high-pressure, 904. 

 Watt's improvements were first applied to 



single-acting engines, 878. 

 Water an inelastic fluid, 748. 

 Water, its velocity through a pipe, 7C3. 

 Water, lOlbs. can be converted into steam 



by 1 Ib. of fuel, 852. 

 Water lifted, becomes a reservoir of 



power, 840. 



Water, movement of, 825. 

 Water power, 825. 

 Water power, adaptation for, 833. 

 Water, velocity of, 826. 

 Water pressure in the hydraulic crane, 



840. 



Water pressure on a float-board, 827. 

 Water-pumping in docks, 879. 

 Water, quantity discharged by a pump, 



774. 



Water, raising from mines, 878. 

 Water reservoirs, 833. 

 Water rises about thirty-two feet through 



tubes exhausted of air, 769. 

 Water-streams, comparative velocity, 834. 

 Water, the force of vapour raised from, 



843. 



Water, the object of hydrodynamics, 763. 

 Water, troy-weight of a culm- nn-li, 755. 

 Water, weight of a cubic foot of, 826. 

 Water-wheel (breast), 831. 



