Annual Report of the Commissioner of Labor (Volume 12)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...under the circumstances, may be used instead; and then only under the regular direction and supervision of some competent engineer or superintendent of experience who shall be held responsible therefor. And the quantity of such high explosives shall always be limited according to law and local ordinances and the strictest demands of safety. In no tunnel shall more explosives be stored than are required for a single blast or one round of holes in the working face; unless the chief engineer? shall certify in writing that for special and peculiar reasons it is safer or absolutely necessary to do otherwise, which certificate shall prescribe the limits to the amount of explosives to be allowed in the tunnel at any one time and shall be kept posted In a conspicuous place with the other rules hereinafter mentioned. 5. Only such persons as are selected and regularly designated by a competent engineer or superintendent of experience shall handle or transport the dynamite or other high explosives used in the construction of any tunnel; and extraordinary care shall be exercised in selecting therefor only such persons as are competent, careful and of good habits as to the use of liquor, and to see that they store, prepare, handle and transport all such explosives in the safest and most careful manner. 6. Only such persons as have been selected and regularly designated therefor by a competent eugiueer or superintendent) of experience shall be allowed to prepare or set off blasts in any tunnel under construction, and: extraordinary care shall be exercised in selecting therefor only such persons as are competent, experienced and of good habits as to the use of liquor. The person present In charge of the work in any tunnel or section thereof shall see to it that...