Address of Charles Hutton Gregory, esq., on his election as president of the Institution of civil engineers |
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Address of Charles Hutton Gregory, Esq., on His Election as President of the ... Charles Hutton Gregory No preview available - 2016 |
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accuracy allude application of Engineering armour-plating arms Armstrong gun army battery believe blast boiler breech-loaders bridges British Association carried Civil Engineer coil Committee compressed air considerable construction corps Crimean war cylinder direction effected employed ether evaporative condenser experiments factory feet long fire FREDERICK BRAMWELL give Government gross indicated horse-power guns heavy hour hydraulic improvements inches thick Inst Institution iron plates iron ships labour locomotive Lord Cochrane machinery manufacture of iron marine engines mechanical ment Messrs metal miles Millwall mode national defence Navy obtained ordnance piston-speed ploughs practical present President pressure of steam produced projectile puddled iron puddling process pumped purposes rails railway reaping machines rivers rolled plates round shot Section sewing machine Shoeburyness Sir William Armstrong speed square inch steam-engine steel supplied surface condenser tons train transmission of power trial tubes vessels water-line weight weldless Whitworth wrought-iron yards
Popular passages
Page 5 - Engineer being the art of directing the great sources of power in nature for the use and convenience of man as the means of production and of traffic in states both for external and internal trade...
Page 5 - ... the art of directing the great sources of power in Nature for the use and convenience of man, as the means of production and of traffic in states both for external and internal trade, as applied in the construction of roads, bridges, aqueducts, canals, river navigation and docks, for internal intercourse and exchange, and in the construction of ports, harbours, moles, breakwaters and lighthouses, and in the art of navigation by artificial power for the purposes of commerce, and in the construction...
Page 18 - It is considered by the present authorities that the diminution in number of parts leaves the gun less liable to injury by accident and less dependent upon perfection in manufacture, and that practically an equal amount of strength is obtained ; while it is held that a fibrous iron is to be preferred as more workable for coils, and as giving out its greatest strain over a greater distance than the best Yorkshire iron, which, while stronger statically, is considered not to yield so far before fracture....
Page 18 - Prior to the mechanical improvements which have led up to the present rifled guns, the greatest distance to which a projectile was ever thrown from a smooth bore gun was not much over 6,000 yards, and the limit of bombarding range at high elevations, with the 13-inch mortar, was 4,500 yards. With the modern ordnance projectiles have been thrown, with greater precision, to a range exceeding 10,000 yards : the guns of the service make good practice at 6,600 yards; in fact, much better practice than...
Page 5 - Water, which is at once the most useful of the necessaries of life, and the most dangerous element in excess, when limited by the laws of this science is rendered the best of servants ; the rolling cataract which spends its powers in idleness may be directed to drain the mine, to break the ore, or be employed in other works of labour for the use of man ; the streams are collected and confined in canals for inland traffic ; harbours are formed to still the raging of the waves of the ocean, and offer...
Page 18 - ... Yorkshire iron, which, while stronger statically, is considered not to yield so far before fracture. It is stated that this change has diminished the cost of production by 35 or 40 per cent. The heaviest projectile thrown by any gun in the service prior to 1854, was the 200 Ib. shell of the 13-inch mortar. The largest Armstrong gun hitherto constructed is an experimental one, which has a calibre of 13-1 inches, weighs 23 tons, and throws a shell of 600 Ibs. It is intended that future 12 inch...
Page 5 - Sir William Armstrong alluded to this probability in his address, and I entirely agree — if he will allow me to say so — that such a change in the production of power from fuel appears to be impending, if not in the immediate future, at all events in a time not very far remote : and however much the mechanical section of the British Association may to-day contemplate with regret even the...
Page 26 - Corps, constituted, according to its rules, " for the purpose of directing the application of skilled labour and of railway transport to the purposes of national defence, and for preparing, in time of peace, a system on which such duties should be conducted.
Page 18 - ... The pattern at present in use for all guns consists of only 4 pieces, namely, 1st, the steel barrel, or lining ; 2d, a coiled tube over the barrel, extending from the muzzle nearly to the trunnions ; 3d, the breech coil, consisting of 3 coils in alternate directions, welded together, with a trunnion welded on, the whole piece shrunk on over the breech of the barrel, and lapping over the front coil ; 4th, the cascable. It is considered by the present authorities that the diminution in number of...
Page 18 - ... throws a shell of 600 Ibs. It is intended that future 12 inch guns shall have a weight of 25 tons. The 11 inch gun lately constructed weighs 23 tons, and the weight of the several parts are as follows : — The steel barrel, 5 tons 5 cwt. in the rough, 2 tons 16cwt.