Miners' Circular, Utgaver 2-36U.S. Government Printing Office, 1911 |
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Side 3
... coal mines . Permissible explosives give a short and relatively cool flame that is less likely to ignite inflammable gas or coal dust than is the longer and hotter flame of dynamite or the longer and much more lasting flame of black powder ...
... coal mines . Permissible explosives give a short and relatively cool flame that is less likely to ignite inflammable gas or coal dust than is the longer and hotter flame of dynamite or the longer and much more lasting flame of black powder ...
Side 5
... coal dust , 18 pounds of which is to be placed on shelves along the sides of the first 20 feet of the gallery , and 2 pounds to be so placed that it will be stirred up by an air current in such manner that all or part of it will be ...
... coal dust , 18 pounds of which is to be placed on shelves along the sides of the first 20 feet of the gallery , and 2 pounds to be so placed that it will be stirred up by an air current in such manner that all or part of it will be ...
Side 8
... coal mines for " adobe shots , " a in breaking large pieces of rock or coal or in breaking down stoppings , where either gas or dry inflammable dust is present in quantities or under conditions that indicate danger . It is expected that ...
... coal mines for " adobe shots , " a in breaking large pieces of rock or coal or in breaking down stoppings , where either gas or dry inflammable dust is present in quantities or under conditions that indicate danger . It is expected that ...
Side 11
... coal mines indicate that some of the coal in the drill hole helps to form ... dust in the air , may ignite from the spitting of the fuse of the dependent ... coal will be won for each pound of explosive used and the safety will be ...
... coal mines indicate that some of the coal in the drill hole helps to form ... dust in the air , may ignite from the spitting of the fuse of the dependent ... coal will be won for each pound of explosive used and the safety will be ...
Side 2
... dust needed to spread an explosion_ Fine coal and coal dust____ . Differences in coal dust ... . 7 7 7 Effect of stone dust . Explosiveness of dusts Causes of coal - dust explosions__ Shots or blasts ---- Danger from tamping with coal dust ...
... dust needed to spread an explosion_ Fine coal and coal dust____ . Differences in coal dust ... . 7 7 7 Effect of stone dust . Explosiveness of dusts Causes of coal - dust explosions__ Shots or blasts ---- Danger from tamping with coal dust ...
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Vanlige uttrykk og setninger
Accidents from falls afterdamp barricade black blasting powder black damp blasting powder bones brattice breathing apparatus broken BULLETIN Bureau of Mines burning Burrell and F. M. carbide lamps carbon dioxide carbon monoxide carry cartridge cause cent charge CIRCULAR Clarence Hall clean cloth coal dust coal mines coal-mine containing DANGEROUS PRACTICE detonator disease door drill hole dynamite electric entry face falls of roof figs Figure fire boss fire damp first-aid foreman fuse G. A. Burrell G. S. Rice gases gauze H. H. Clark handle ignited inches injured J. H. White J. W. Paul keep killed methane method mine-rescue miners MOON'S PHASES open light oxygen Penelec permissible explosives precautions prevent properly rescue rock dust SAFE PRACTICE SAFE PRACTICE-Continued safety lamp self-rescuer shot firer side splints stretcher switch tamping TECHNICAL PAPER timber triangular bandage trip trolley wire underground ventilation
Populære avsnitt
Side 10 - With arms held straight, swing forward slowly, so that the weight of your body is gradually brought to bear upon the patient. The shoulder should be directly over the heel of the hand at the end of the forward swing. Do not bend your elbows. This operation should take about two seconds.
Side 11 - After two seconds, swing forward again. Thus repeat deliberately twelve to fifteen times a minute the double movement of compression and release, a complete respiration in four or five seconds.
Side 74 - ... 6. Continue artificial respiration without interruption until natural breathing is restored, if necessary, four hours or longer, or until a physician declares the patient is dead. 7. As soon as this artificial respiration has been started and while it is being continued, an assistant should loosen any tight clothing about the patient's neck, chest or waist. Keep the patient warm.
Side 11 - The main current of air shall be so split or subdivided as to give a separate current of reasonably pure air to every 100 men at work, and the inspector shall have authority to order, in writing, separate currents for smaller groups of men, if, in his judgment, special conditions render it necessary.
Side 74 - The patient must be watched, and, if natural breathing stops, artificial respiration should be resumed at once. 11. In carrying out resuscitation, it may be necessary to change the operator. This change must be made without losing the rhythm of respiration. By this procedure, no confusion results at the time of change of operator, and a regular rhythm is kept up.
Side 20 - Truths. 1. It is easier, better, and cheaper to prevent than to cure disease. 2. Everything that protects the mother before her baby is born improves the health of the baby after its birth. 3. Many of the diseases observed in older children and adults begin in infancy. 4. Healthy babies make strong men and women. 5. The baby's food, home, and surroundings play an important part in keeping it well or making it sick. 6. Mother's milk is the best food for babies. 7. Cow's milk which has become infected...
Side 74 - Not infrequently the patient, after a temporary recovery of respiration, stops breathing again. The patient must be watched, and, if natural breathing stops, artificial respiration should be resumed at once.
Side 105 - He had spent 77 full years trying to make the world a better place in which to live.