Definitions
from The Century Dictionary.
- A machine consisting of two heavy rolls between which ore, coal, or other mineral is drawn and crushed. Sometimes the rolls are toothed or ribbed, but for ore their surface is generally smooth.
Etymologies
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Examples
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` ` When Mr. Edison first decided to go into the cement business, it was on the basis of his crushing-rolls and air separation, and he had every expectation of installing duplicates of the kilns which were then in common use for burning cement.
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After leaving the giant rolls the broken rock passed on through other crushing-rolls of somewhat similar construction.
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After leaving the giant rolls the broken rock passed on through other crushing-rolls of somewhat similar construction.
Edison, His Life and Inventions Frank Lewis Dyer 1905
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"When Mr. Edison first decided to go into the cement business, it was on the basis of his crushing-rolls and air separation, and he had every expectation of installing duplicates of the kilns which were then in common use for burning cement.
Edison, His Life and Inventions Frank Lewis Dyer 1905
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