The Works Of Messrs. Schneider And Co.

THE ARTILLERY WORKS OF MESSRS. SCHNEIDER AND CO., AT HAVRE. 171 intirmary, and the porter’s lodging on the ground floor ; the first floor is utilisée! as accommodation for the French and foreign inspecting officers. The other annexe is to the north of the works adjoining the Western of France Rail- way ; it contains a 3-ton steam hammer, and hånd forges which are employée! for executing varions repairs to the machine tools, &c., and also for making small foreings required in the gun shops. The large forgings are manu- facturée! at Creusot and sent on to Havre. The difficulties with the foundations already referred to, were, of course, also encountered when carrying out throughout ; the main trusses are placed 6 metres (19 ft. 9 in.) apart; between these are intermediate trusses that are attached to the longitudinal girders between the columns. In the three western spåns however, the intermediate trusses are carried by single columns that rest on the top of the masonry arches uniting the concrète masses that enclose the upper part of the piles. The iron purlins that carry the roof covering have therefore, a 3-metre (9 ft. 10 in.) spån. The shops are lighteel by day through skylights placed on top of all the buildings, except the west shop, which is lighted through Fig. 574. Plan of the Havre Gun Factory. extensions. The subsoil over which the Havre gun works are built, consisting of a bed of marl 9 to 10 metres (about 32 ft.) in depth, it was necessary, in order to obtain buildings of the required strength, to execute foundation works of great magnitude. The columns that support the buildings also carry the rails of overhead travellers, and they rest on piles that have been driven as deep as it was possible in the layer of marl. These piles are connectée! in groups of four and six, and near the surface they are einbedded in a mass of concrète that serves to carry the base of’ the columns. The structure of the shops is of iron and steel side Windows. All the parts of the roof that are not glazed are lined inside with matebed boarding. The floor of the large machine-tool shops is made of cement concrète ; that of the other shops is of thick wood planking, fixed to longitudinal beams that rest on a concrète foundation. The heaviest machine tools are carried on groups of piles in the same way as the buildings. Motive power is suppliée! by two vertical compound engines of 120 horse-power each. They can be worked coupled or separated, and are generally driven at a speed of 90 revolutions. Steam is supplied by two Galloway bollers, a third boiler of similar construction being kept in