To avoid imperfection in the running spindles of lathes, or any lateral movement which might exist in the running bearings, there have been many attempts to construct lathes with still centres at both ends for the more accurate kinds of work. Such an arrangement would produce a true cylindrical rotation, but must at the same time involve mechanical complication to outweigh the object gained. It has besides been proved by practice that good fitting and good material for the bearings and spindles of lathes will insure all the accuracy which ordinary work demands.
ONE:"Is that so? Well, the Netherlanders are our friends, and have so much in common with our people."The man nodded. The woman was speaking the truth, and he knew it.
Ren shook his head. He could hear nothing at all. He said so impatiently. It seemed to him that his companion was playing with him.291It was a chilly night, and a dense heavy fog made it impossible to see anything.... My "bed-fellows" raged and fumed at me, saying that I was one of those villains who had treacherously shot at them. I shivered from the cold, and felt, as it were,128 the dampness of the wet stone floor entering my system.