Effective - 28 Aug 1959, 2 histories
293.210. Shaft coal mines, ventilation requirements. — 1. The owner, agent or operator of every coal mine, whether operated by shaft, slope or drift, shall provide and maintain for every such mine a good and sufficient amount of ventilation for such men as may be employed therein, the amount of air in circulation to be in no case less than one hundred cubic feet for each man per minute, measured at the foot of the downcast, and the same to be increased at the discretion of the director of the division according to the character and extent of the workings, or to the amount of powder used in blasting and said volume of air shall be forced and circulated to the face of every working place throughout the mine, so that such mine shall be free from standing powder smoke and gases of every kind.
2. All doors set on main entries for the purpose of conducting the ventilation shall be so constructed and hung as to close of themselves when opened, and shall be made sufficiently tight to effectually obstruct the air currents. In all mines employing fifty or more men a trapper shall be kept in attendance upon such doors to see that they are kept securely closed and the air currents properly controlled.
3. Whenever the director shall find men working without sufficient air, or under any unsafe conditions, he shall first give the operator a reasonable notice to rectify the same, and upon his refusal to do so, may himself order them out until said portions of said mine shall be put in proper condition.
4. The ventilation required by this section may be produced by any suitable appliances, but in case a furnace shall be used for ventilating purposes, it shall be built in such a manner as to prevent the communication of fire to any part of the works, by lining the upcast with incombustible material for a sufficient distance up from said furnace.
5. The currents of air in coal mines shall be so split as to give a separate current to at least every fifty men at work, and the director shall have discretion to order a separate current for a smaller number of men, if special conditions render it necessary.
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(L. 1959 S.B. 188 §§ 22, 23)
Structure Missouri Revised Statutes
Title XVIII - Labor and Industrial Relations
Chapter 293 - Mining Regulations
Section 293.010 - Definitions.
Section 293.020 - Applicability of law.
Section 293.040 - Maps of mine, when made, contents.
Section 293.050 - Hours of work — safety rules — posting of law and rules.
Section 293.070 - Limits on visitors.
Section 293.080 - Mine owner to report, when.
Section 293.090 - Director's report, contents.
Section 293.100 - Washrooms, dressing rooms, first aid equipment.
Section 293.110 - Working places, shafts — drinking devices.
Section 293.120 - Air safety requirements.
Section 293.130 - Mine railroad equipment and operating requirements — gasoline engines limited.
Section 293.140 - Escapement shafts, how equipped.
Section 293.150 - Electrical wiring and equipment requirements.
Section 293.160 - Electrical equipment requirements.
Section 293.170 - Fire safety requirements.
Section 293.180 - Protective clothing and devices to be worn.
Section 293.190 - Accident reports, investigation, powers of inspector — failure to report, penalty.
Section 293.200 - Shaft coal mine outlets and escapement shaft requirements — penalty.
Section 293.210 - Shaft coal mines, ventilation requirements.
Section 293.220 - Daily examination of coal mines generating explosive gas, record.
Section 293.230 - Experienced coal miner to handle explosives or gases.
Section 293.240 - Blasting cartridge requirements.
Section 293.250 - Violation of coal mining safety laws, penalty.
Section 293.260 - Explosive strongbox required — employment of shot firers, duties — penalty.
Section 293.270 - Storage of over daily supply of explosives in mine prohibited.
Section 293.280 - Location of explosive storage magazines, ventilation.
Section 293.290 - Detonators or caps not kept in magazine in coal mine.
Section 293.300 - Explosives not to be prepared in storage magazine.
Section 293.310 - Violations of law as to explosive storage, penalty.
Section 293.320 - Bore holes required, when, where.
Section 293.330 - Signaling and hoisting devices in shaft, safety requirements.
Section 293.350 - Hoisting equipment, operating requirements (coal mines).
Section 293.360 - Inspection of hoisting equipment, records — penalty (coal mines).
Section 293.380 - Coal mine operated, how — abandoned workrooms sealed, penalty.
Section 293.390 - Standards for roof control — supply of materials required (coal mines).
Section 293.400 - Coal dust controls.
Section 293.410 - Welding and cutting operations, ventilation, rock-dusting.
Section 293.420 - Weighing regulations where coal miners paid by weight.
Section 293.440 - Weighing laws apply to "loaders", when.
Section 293.450 - Coal miners to be brought to surface for lunch period of hour, penalty.
Section 293.460 - Coal miner to prove qualifications before working alone — penalty.
Section 293.470 - Division to close coal mine, when — penalty.
Section 293.480 - Coal miners paid wages, when — penalty.
Section 293.490 - Coal miner's lien for wages.
Section 293.500 - Applicability of sections 293.200 to 293.490.
Section 293.510 - Dangerous mines to be closed by state, expenses.
Section 293.520 - Experience required for miners, except trainees.
Section 293.530 - Notice of opening and abandonment of mines — abandoned mines to be sealed.
Section 293.540 - Outlets may be required, when — location of shafts.
Section 293.550 - Ventilation of mines.
Section 293.560 - State inspections for health safety — procedure when ventilation inadequate.
Section 293.570 - State inspection for dust — waterlines to be installed, when, sprinkling.
Section 293.580 - Explosives, storage, handling and use.
Section 293.590 - Hoisting equipment and operating regulations.
Section 293.600 - Director may require crossheads in shaft sinking operations.
Section 293.610 - Applicability of sections 293.510 to 293.600.
Section 293.620 - Caves, inspection, to provide map — inspection fees.
Section 293.630 - Rules and regulations.
Section 293.640 - Inspectors and employees — appointment, salaries.
Section 293.650 - Expenses of director and inspectors.
Section 293.660 - Inspection of mines, when — rights and duties of inspectors — reports.
Section 293.670 - Complaints as to dangerous conditions, procedure.
Section 293.680 - Judicial review of orders of director — effect of filing on order, procedure.