Keep's test for cast-iron : a description of the routine to be pursued by those using this method of testing (1893)
W[illiam] J[ohn] Keep · leaf 8
rfaces with a cloth onwhich is a little kerosone oil,to prevent rusting. A few castswithout oil would ruin the sur-faces, and the ends of the testbars would also be imperfect,but with oil the yokes will lastfor years, and the ends oi thehats will be sharp and smooth.The pattern being placed… … He
Building materials · Metals · Cast Iron
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.