. Public health and preventive medicine. -nace cells. Through these thefumes pass to the shaft, heing com-pletely oxidised en route. In thesecond class the forced draught isobtained by means of fans or steam-jet blowers, and a temperature of2000° F. secured. The chimneyrequires to be higher than for anordinary coal or coke-fed furnace, asinferior fuel creates a poorer Horsfall destructor is an excel-lent type of the second variety ; andas an example of the first maybe mentioned Fryers, with Jonesfume cremator, where the wear and tear is less and the cost reduced. TheHorsfall employ
. Public health and preventive medicine. -nace cells. Through these thefumes pass to the shaft, heing com-pletely oxidised en route. In thesecond class the forced draught isobtained by means of fans or steam-jet blowers, and a temperature of2000° F. secured. The chimneyrequires to be higher than for anordinary coal or coke-fed furnace, asinferior fuel creates a poorer Horsfall destructor is an excel-lent type of the second variety ; andas an example of the first maybe mentioned Fryers, with Jonesfume cremator, where the wear and tear is less and the cost reduced. TheHorsfall employs a very high temperature, and the fumes are subjected to thehighest temperature of all. The furnace also has exceptional steam-raisingpower. About one-third of the fuel is obtained in the form of clinker, theremainder being consumed as fuel. One great disadvantage about destructorsis the nuisance arising from dust, and in the Perfectus destructor an effort ismade to avoid this by catching the fine black dust in pits connected with the. Fume cremator. 390 SANITARY ENGINEERING main flue. Baffle plates in the shafl have proved a failure. For small destructor, by virtue of its cheapness and efficiency, is likely to meet awant. The dust evolved from a destructor chimney has been analysed, and foundto contain 93-6 per cent, of mineral matter, and 62 per cent, of organicmatter. VI. MEANS AND METHODS OF ASCERTAINING THE EFFICIENCYOF SANITARY APPLIANCES IN BUILDINGS, AND ACONSIDERATION OF THE DEFECTS WHICH MAY BEENCOUNTERED. Inspection of Individual Houses.—In Scotland, each division of atenement in the individual occupation of a tenant is regarded as a separatehouse; while in England, all that is under the eaves forms a house. Indrawing up a report on the sanitary condition of a house, the medical officerof health should note the following points :?— (1) The name and address of the owner. (2) The name of the occupier.(3) The exact location, number, and name of the dwe
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectprevent, bookyear1902
