TY - JOUR
AU1 - Darby, J F
AB - Laboratory and workshop notes For clearness it is shown on the end of a cylinder, but in a Sphcrical mineral purticles were also produced from rough large surface would usually be made by raising the work pieces in the wiic apparatus, although the addition of a small vertically to the cutter, and not, as shown here, by setting the amount of carboriindum paqte reduced the tendency of brittlc mincrals to crack along their plancs of weaknes while in the depth of cut and feeding the work right across the cutter. of the groove produced by the latter method when The faces C is formed are shown appropriately shaded on the drawing. The enchroachment on to the surrounding surface might be on, say, the face of an interferometer mirror, a disadvantage Fig. 2. Acrylic spheres from mill Fig. 3. Calcite (left) and galena (right) spheres from mill but in many other applications it would not matter. If the mill. Fig. 3 shows two typical products made from calcite angle of the cutter is 450, then Maxwell-s condition(7) is and galena. It is probable that the method could be extended fulfilled, that is LL. . . if one of the bearings 
TI - A note on the hole, slot and plane method
JF - Journal of Scientific Instruments
DO - 10.1088/0950-7671/31/6/414
DA - 1954-06-01
UR - https://www.deepdyve.com/lp/iop-publishing/a-note-on-the-hole-slot-and-plane-method-Hzsm2adf3f
SP - 224
VL - 31
IS - 6
DP - DeepDyve
ER -