Information Circular

Capa
1946
 

Palavras e frases frequentes

Passagens conhecidas

Página 12 - Said vehicle shall be marked or placarded on each side and the rear with the word "Explosives...
Página 13 - No. 26 gauge or other fire-resistant material. The roofs of magazines so located that it is possible to fire bullets directly through the roof into the...
Página 32 - Metallic frames, casings, and other electric equipment that can become "alive" through failure of insulation or by contact with energized parts shall be grounded.
Página 36 - No. 26 gauge, or other flre-resistant material; or of wood not less than 6 inches in thickness; or of reinforced concrete not less than 4 inches in thickness. Doors of magazines located underground shall be substantially constructed of wood not less than 2 inches in thickness or of other material of equivalent...
Página 38 - MT36. FORMULAS FOR DIRECT AND INVERSE INTERPOLATION OF A COMPLEX FUNCTION TABULATED ALONG EQUIDISTANT CIRCULAR ARCS.
Página 36 - Padlocks and mortise locks shall be the equivalent of 5-tumbler jarproof locks. Doors shall be provided with strong hinges, hasps and staples attached by welds, rivets, or by bolts fitted with lockwashers and nuts on the inside of the magazine and installed in such a manner that the fastening cannot be removed when the magazine is locked.
Página 27 - The number of faculty members is taken from the report (unpublished) of a survey conducted by the National Roster of Scientific and Specialized Personnel of the War Manpower Commission in December, 1942.
Página 32 - Switchboards installed after the effective date of this section shall be located so that ample room will be provided between the switchboard and passageways or lanes of travel and shall have an entrance at each end to permit authorized persons to inspect, adjust, or repair apparatus back of the board. Switchboards shall have the entrance to the rear guarded against entrance of unauthorized persons, unless in a building that is kept locked.
Página 36 - ... decrease in the thickness of the steel plate: or of wooden walls at least 4 inches apart and filled with screened sand or other effective bullet-resistant filler, the exterior being covered with sheet iron not lighter than No. 26...
Página 61 - An accurate and reliable indicator, showing the position of the cage or trip, shall be placed so as to be in clear view of the engineer, unless the position of the car or trip is clearly visible to the engineer at all times.

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