. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. blade generally is fixed by rivets or bolts; the assemblage of blades constitutes the propellingagents. To render them effectual they are encased in a round box, adapted to them, having acentral opening each side, for the admission of air, and an opening in the circumference for theexpulsion of air, with a short passage in continuation, to connect the air passages leading to thefurnace. This case should be strong and heavy. By the rapid revolution of the blades upon thisaxle, a strong current sets in at th
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. blade generally is fixed by rivets or bolts; the assemblage of blades constitutes the propellingagents. To render them effectual they are encased in a round box, adapted to them, having acentral opening each side, for the admission of air, and an opening in the circumference for theexpulsion of air, with a short passage in continuation, to connect the air passages leading to thefurnace. This case should be strong and heavy. By the rapid revolution of the blades upon thisaxle, a strong current sets in at the centre, and is propelled along the air passages to the journals of the axles should be long, with the view of dispersing the great amount of friction towhich they are subjected, by running in their bearing at such a high velocity as is usually com-municated to the axle. Unless these parts be very well fitted, and the framework of the arms andblades perfectly balanced and firmly fixed upon the axle, the greatest difficulty is experienced inpreventing the firing of the rub
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
