- Software name: appdown
- Software type: Microsoft Framwork
- size: 303MB
"I don't know, Lieutenant; do you think Jewett has run back into his own lines?"
4. The speed at which shafts should run is governed by their size, the nature of the machinery to be driven, and the kind of bearings in which they are supported."Ah, no, General! By the name of the lady you love best, I beg you to see my need and let me go. I promise you never henceforth to offend your cause except in that mere woman's sympathy with what you call rebellion, for which women are not so much as banished by you--or if they are, then banish me! Treat me no better, and no worse, than a 'registered enemy'!"
In the case of line shafting for manufactories, if the speed varies so much from that of the first movers on machines as to require one or more intermediate or countershafts, the expense would be very great; on the contrary, if countershafts can be avoided, there is a great saving of belts, bearings, machinery, and obstruction. The practical limit of speed for line shafts is in a great measure dependent upon the nature of the bearings, a subject that will be treated of in another place.
"I should--have turned back, my boy." After a silence the hero said more to himself than to me "Ah, if my brother were here to-night--I might live!"
For milling, drilling or boring ordinary work within its range, a lathe is by no means a makeshift tool, but performs these various operations with nearly all the advantages of machines adapted to each purpose. An ingenious workman who understands the adaptation of a modern engine lathe can make almost any kind of light machinery without other tools, except for planing, and may even perform planing when the surfaces are not too large; in this way machinery can be made at an expense not much greater than if a full equipment of different tools is employed. This of course can only be when no division of labour is required, and when one man is to perform all the several processes of turning, drilling, and so on.