Every emery wheel and grindstone shall be fitted with a sheet or cast iron hood or hopper, of such form so adjusted that the dust or refuse therefrom will fall or be thrown into such hood or hopper by centrifugal force, and be carried off by the current of air into a suction pipe.
Neb. Rev. Stat. § 48-407
Emery wheels and grindstones; hoods or hoppers required
Laws 1911, c. 67, § 7, p. 301; R.S.1913, § 3594; Laws 1919, c. 190, tit
Official source: Nebraska Legislature. Reproduced from public-domain Nebraska statutes; confirm against the official source for the current text. Not legal advice.