In the case of factories the exhaust steam from the engines used for driving the working machinery is made use of and forms the most economical method of heating possible.
The system is economical in fuel, but needs skilled attendance to keep the appliances and fittings in order.
In the choice of a boiler of this description it should be remembered that rapid heating, economical combustion of fuel, and facilities for cleaning, are requisites, the absence of any of which considerably lowers the efficiency of the apparatus.
This drawback can be corrected to a slight extent by furnishing the hydraulic crane with more than one cylinder, and thus compounding it, but the arrangement does not give the same economical range of load "as in an electric crane.
This insurgence of the artisans, in a republic which had been remodelled upon economical principles by Giano della Bellas constitution of 1292, reached a climax in 1378, when the Ciompi rebellion placed the city for a few years in the hands of the Lesser Arts.
He then addressed himself to the French ministers, and had much earnest conversation, especially with Rouher, whom he found well inclined to the economical and commercial principles which he advocated.
Electric locomotives are in general more economical then either steam or compressed air.
It is more economical Lowerin g to save the men's strength, however, by raising men.
An economical method of evaporation must be found.
The electrolytic parting of gold and silver has been shown to be more economical and free from the objections - such as the poisonous fumes - of the sulphuric acid process.
He had not accustomed himself to economical living; and, when the emoluments of his office were withdrawn, he had barely enough to support his family.
He visited all parts of the country himself, and personally encouraged agriculture; he introduced a more economical mode of mining and smelting silver; he favoured the importation of finer breeds of sheep and cattle; and he brought foreign weavers from abroad to teach the Saxons.
For moderate spans brick, masonry or concrete can be used without excessive cost, but for longer spans steel is more economical, and for very long spans its use is imperative.
The development of the theory of structures has been largely directed to determining the arrangements of material which are most economical, especially in the superstructure.
It is economical to have one horizontal boom and one polygonal (approximately parabolic) boom.
A Hindu strain is evident in Java and others of the western islands; Moors and Arabs (that is, as the names are used in the archipelago, Mahommedans from various countries between Arabia and India) are found more or less amalgamated with many of the Malay peoples; and the Chinese form, from an economical point of view, one of the most important sections of the community in many of the more civilized districts.
I desire to speak impartially on this point, and as one not interested in the success or failure of the present economical and social arrangements.
On the previous Sunday the old count had given his son two thousand rubles, and though he always disliked speaking of money difficulties had told Nicholas that this was all he could let him have till May, and asked him to be more economical this time.