BulletinU.S. Government Printing Office, 1919 |
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Página 31
... amount and character of the minerals contained . Zinc and silver are the determining factors . For instance , an ore ... amounts . Copper is present only in very small amounts , but is found both as tetrahedrite and chalcopyrite . The ...
... amount and character of the minerals contained . Zinc and silver are the determining factors . For instance , an ore ... amounts . Copper is present only in very small amounts , but is found both as tetrahedrite and chalcopyrite . The ...
Página 34
... amount of oil fed to the pulp as it is discharged from the first centrifugal pump . After thorough mixing in the Pachuca tank the pulp is distributed to four roughing cells . The froth is collected and cleaned in the first cleaner cell ...
... amount of oil fed to the pulp as it is discharged from the first centrifugal pump . After thorough mixing in the Pachuca tank the pulp is distributed to four roughing cells . The froth is collected and cleaned in the first cleaner cell ...
Página 54
... amount of salt from 3 to 10 per cent of the weight of the ore . The blast pressure was varied in order that temperatures of 600 ° to 900 ° C. could be obtained . The roasting period was varied from 15 minutes to 3 hours . In no test did ...
... amount of salt from 3 to 10 per cent of the weight of the ore . The blast pressure was varied in order that temperatures of 600 ° to 900 ° C. could be obtained . The roasting period was varied from 15 minutes to 3 hours . In no test did ...
Página 64
... amount and agitating 1.5 hours ; ( 3 ) using a large excess of acid and agitating for 1.5 hours ; ( 4 ) using a ... amount theoretically required to dissolve the zinc was added . Of course , some of the zinc sulphide had been roasted to ...
... amount and agitating 1.5 hours ; ( 3 ) using a large excess of acid and agitating for 1.5 hours ; ( 4 ) using a ... amount theoretically required to dissolve the zinc was added . Of course , some of the zinc sulphide had been roasted to ...
Página 74
... amount of soluble zinc . The effect of temperature on the solubility of the zinc is shown by the upper curve in figure 8 , where the gradual temperature rise is plotted on one axis and the percentages of soluble zinc , as determined by ...
... amount of soluble zinc . The effect of temperature on the solubility of the zinc is shown by the upper curve in figure 8 , where the gradual temperature rise is plotted on one axis and the percentages of soluble zinc , as determined by ...
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Términos y frases comunes
Act entitled action AMENDATORY ACT amended amount appointed approved April 18 brass Bureau of Mines cage Carterville cause cent zinc certificate charge chloride Coal & Coke coal mines compensation Consolidated Coal copper court Curtiss Statutes damages dangerous condition dollars Donk Bros duty electric furnace electrodes Eminent domain employee enacted escapement shaft examination explosive failure February 13 feet filed fire force July furnish heat hereby Illinois Industrial Board ingot injury inspection iron June June 16 June 21 Kellyville Coal kilowatt-hours La Salle County Laws leaching lead lease liable manager melting miner Mining Board Mining operations owner pipe pounds poured power consumption props purpose recovered recovery Revised Statutes roasting rocking roof safety saline solution spelter Spring Valley Coal Starr & Curtiss sulphate sulphuric acid tank temperature tests therein thereof tion weight zinc chloride Zinc concentrate zinc oxide zinc sulphide
Pasajes populares
Página 401 - Where the injury for which compensation is payable under this Act was caused under circumstances creating a legal liability in some person other than the employer...
Página 396 - ... in the case of partial incapacity the weekly payment shall in no case exceed the difference between the amount of the average weekly earnings of the workman before the accident and the average weekly amount which he is earning or is able to earn in some suitable employment or business after the accident...
Página 400 - No proceedings for compensation under this Act shall be maintained unless notice of the accident has been given to the employer as soon as practicable after the happening thereof...
Página 452 - Loss of both hands, or both arms, or both feet, or both legs, or both eyes, or of any two thereof shall, in the absence of conclusive proof to the contrary, constitute permanent total disability. In all other cases permanent total disability shall be determined in accordance with the facts.
Página 209 - For any injury to person or property, occasioned by any willful violations of this act or willful failure to comply with any of its provisions, a right of action shall accrue to the party injured for any direct damages sustained thereby...
Página 407 - Provided, however, That in no case shall the amount received for more than one finger exceed the amount provided in this schedule for the loss of a hand.
Página 144 - Illinois, before any justice of the peace of such county, and such fine, when collected, shall be paid into the county treasury for the use of the county in which any such accident may have occurred.
Página 352 - I do solemnly swear (or affirm, as the case may be) that I will support the Constitution of the United States, and the Constitution of the State of Illinois, and that I will faithfully discharge the duties of the office of according to the best of my ability.
Página 402 - ... persons herein required to do them, or any violation of any of the provisions or requirements hereof, or any attempt to obstruct or interfere with any inspector in the discharge of the duties herein imposed upon him, or any refusal to comply with the...
Página 385 - ... all laws and parts of laws inconsistent with this act are hereby repealed...