inally screwed sufficiently tight, which proceeding will pre-vent the springing of the work by the screws. The bellchuck will hold work very firmly, and obviate the necessity(in most cases) of a guide or cone chuck being placed uponthe outer end of the work to steady it. The screws should be made… … them from the chuck, to replace them when necessary, or tostraighten them if they become bent, as is sometimes thecase. To prevent bulging, the ends should be tempered to aptraw color. When tubes, brass work, or finished work,which is liable to be damaged by the pressure of the screws,is held in a…
Patents · Improved · Keely · Glass · Pressure · Inches · Scientific American · Iron · Keely motor · Small quantity · Horse power · Square inch · Second hand · Solar spectrum · Turbine water · Feet long · Practical treatise
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
