from tinydental wheels -fa of an inch thick and % of an inch indiameter up to wheels 6 inches in thickness and 36inches in diameter ; and just here it may be noted thatto obtain the cutting material in a 36-ineh wheel in-volves the expenditure of energy amounting to 1,250horse power hours. One of… … A VENDING-MACHINE OF NOVEL CONSTRUCTION. other data. From the printing roll it passes to a bathof liquid glue, and then beneath a V-shaped hopper,from the bottom of which a fine stream of powderedcarborundum falls upon the glued surface. It is thenlooped up onto a series of racks where it is hung…
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