A Further Note on the Fracture Systems of Glass

JSGT 1929 V13 T003-T015

This brief note is added as an extension of my former paper (wherein we traced the connection between fracture-systems and the stresses producing them) on account of a deceptive similarity between two sorts of radiating fissures which ought to be recognised and distinguished. If they are confused with one another, a works superintendent trying to cure the trouble will very likely do exactly the wrong thing and make his glass worse rather than better. I am referring, of course, to trouble experienced in annealing large flat sheets of plate or wire glass, which may break in subsequent operations, such as grinding or polishing or glazing.

Linked to JSGT 1926 T234-T269

F. W. Preston