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" ... charge of the agent of such mine, and in all mines the doors used in assisting or directing the ventilation of the mine shall be so hung and adjusted that they will close themselves or be supplied with springs or pulleys so that they... "
Acts of the State of Ohio - ˹éÒ 22
â´Â Ohio - 1874
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

Journal of the Senate of the ... General Assembly of the State ..., àÅèÁ·Õè 68

Ohio. General Assembly. Senate - 1872 - 924 ˹éÒ
...used for examining coal mines, or which may be used in working any mine, shall be the property of tho owner of the mine, and shall be under the charge of...directing the ventilation of the mine shall be so hung and so adjusted that they will shut of their own accord, and can not stand open ; and in all such mines...
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Annual Report of the Chief Inspector of Mines for the Year Ending ...

1875 - 762 ˹éÒ
...shall be the property of the owner of the mine, and shall be under the charge of the agent thereof ; and in all mines generating explosive gas, the doors...directing the ventilation of the mine shall be so hun^ and adjusted that they will shut of their own accord, and can not stand open ; and in all such...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

The Coal Mines: Containing a Description of the Various Systems of Working ...

Andrew Roy - 1876 - 436 ˹éÒ
...All the safety-lamps used for examining coal mines, or which may be u-ri| in working any mine, shall be the property of the owner of the mine, and shall...; and in all such mines the mining boss shall keep a careful watch over the ventilating apparatus and the air-ways, and he shall measure the ventilation...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

Laws Enacted in the General Assembly of the Commonwealth of Pennsylvania ...

Pennsylvania. Laws, statutes, etc - 1877 - 650 ˹éÒ
...and shall be in the charge of the agent of such mine ; and in all mines generating explosive gases, the doors used in assisting or directing the ventilation...mine shall be so hung and adjusted that they will close themselves, or be supplied with springs or pulleys so they cannot be left standing open ; and...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

The Revised Statutes and Other Acts of a General Nature of the ..., àÅèÁ·Õè 1

Ohio - 1879 - 1232 ˹éÒ
...shall be the property of the owner of the mine, and shall be under the charge of the agent thereof; nz9 u_ AIi 07 sbQB #QHB˗ ҸI` | Mining boss to ex- A, , , -,, , e ., . jj 'ij • aminc and report that they will shut of their own...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

Laws Enacted in the General Assembly of the Commonwealth of Pennsylvania ...

Pennsylvania. Laws, statutes, etc - 1881 - 724 ˹éÒ
...generatinc explo- DOOM for T«n«ia<iye gases, the doors used in assisting or directing the Uonventilation of the mine, shall be so hung and adjusted that they will close themselves, or be supplied with springs or pulleys so that they can not be left standing open...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

Legislative Documents, àÅèÁ·Õè 5

Iowa. General Assembly - 1882 - 700 ˹éÒ
...shall be under the charge of the agent thereof, and in all mines whether they generate fire-damp or not the doors used in assisting or directing the ventilation...shut of their own accord and cannot stand open, and the mining boss shall keep a careful watch over the ventilating apparatus and the air-ways, and he...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

Annual Report of the Chief Inspector of Mines for the Year Ending ...

1882 - 424 ˹éÒ
...be under the charge of the agent thereof, and in all mines, whether they generate fire-damp or not, the doors used in assisting or directing the ventilation of the mine, shall be BO hung and adjusted that they will shut of their own accord and cannot stand open, and the mining...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

Laws Passed at the ... Session of the ... General Assembly of the ..., àÅèÁ·Õè 4

Colorado - 1883 - 370 ˹éÒ
...face of the workings the day of the month; and in all mines whether they generate fire-damp or not, the doors used in assisting or directing the ventilation...shall be so hung and adjusted that they will shut up of their own accord and cannot stand open ; and the owner or agent shall employ a practical inside...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé

General Laws of the State of Kansas

Kansas - 1883 - 306 ˹éÒ
...to be self- of such mine. And in all mines generating explosive eases, closing, when. " ' ' ' ' "! ' the doors used in assisting or directing the ventilation...mine shall be so hung and adjusted that they will close themselves, or be supplied with springs or pulleys so they cannot be left standing open ; and...
ÁØÁÁͧ·Ñé§àÅèÁ - à¡ÕèÂǡѺ˹ѧÊ×ÍàÅèÁ¹Õé




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