... Report on the building and ornamental stones of Canada, vol. I-V (1912)
Parks, W. A. (William Arthur), 1868-1936, Canada. Mines Branch · Ottawa : Government printing bureau · leaf 148
Pneumatic Surfacina; Machine. … 91 saw, except that the work is carried against the saw on a platten actuatedby worm and rack. The saw blade may be plain or provided with insertedteeth according to the nature of the material to l)e cut. I The Carborundum Wheel Machine. A recent improvement in stone working machineiv, which is…
Building stones
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
