History of Hardin County Illinois
History of Hardin County Illinois
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In our eReader you can find the full English version of the book. Read History of Hardin County Illinois Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book History of Hardin County Illinois
What reading level is History of Hardin County Illinois book?
To quickly assess the difficulty of the text, read a short excerpt:
Two hundred tons is a fairly good day's hoisting.
In order to keep mines safe for workmen, timber must be used where the ore has been extracted. This timber is secured from the forests of the county.
From the beginning of mining operations until about thirty-five years ago, drilling was done with hand steel drills and hammers and black powder was used in blast- ing. Two men working together worked the drill — one holding the drill — the other striking. While this seems very crude today, yet, ou...r early miners could break all the spar the trade demanded.
In prospecting and in some small operations hoisting is done by manpower using a windless but in earlier days when machinery was scarce horsepower was also used.
Milling of Fluorspar The milling of fluorspar is a business within itself. In order to produce the various grades large mills and ex- pensive machinery are required.
When the ore reaches the surface it is placed in bins at the top of the mill from where it moves by gravity and elevators through crushers and washers to a horizontal conveyer belt where it is hand picked.
What to read after History of Hardin County Illinois?
You can find similar books in the "Read Also" column, or choose other free books by Hardin County Ill Historical Committee for the to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Two hundred tons is a fairly good day's hoisting.
In order to keep mines safe for workmen, timber must be used where the ore has been extracted. This timber is secured from the forests of the county.
From the beginning of mining operations until about thirty-five years ago, drilling was done with hand steel drills and hammers and black powder was used in blast- ing. Two men working together worked the drill — one holding the drill — the other striking. While this seems very crude today, yet, ou...r early miners could break all the spar the trade demanded.
In prospecting and in some small operations hoisting is done by manpower using a windless but in earlier days when machinery was scarce horsepower was also used.
Milling of Fluorspar The milling of fluorspar is a business within itself. In order to produce the various grades large mills and ex- pensive machinery are required.
When the ore reaches the surface it is placed in bins at the top of the mill from where it moves by gravity and elevators through crushers and washers to a horizontal conveyer belt where it is hand picked.
What to read after History of Hardin County Illinois?
You can find similar books in the "Read Also" column, or choose other free books by Hardin County Ill Historical Committee for the to read onlineMoreLess
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