 | New York (State). Office of Factory Inspectors - 1899 - 902 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...owners shall cause the shafts or openings in each floor • height. If a building in course of construction is five stories or more in height, во lumber... | |
 | New York (State) Bureau of Labor Statistics, New York (State). Dept. of Labor - 1899 - 660 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...for the purpose of lifting materials to be used in svich construction, the contractors or owners shall cause the shafts or openings in each floor to be... | |
 | New York (State) - 1900 - 846 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...sides by a barrier at least eight feet in height. If a building in course of construction is five stories or more in height, no lumber or timber needed... | |
 | New York (State). Office of Factory Inspectors - 1900 - 904 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...contractors or owners shall cause the shafts or openings m each floor height. If a building in course of construction is five stories or more in height, no... | |
 | New York (State). Office of Factory Inspectors - 1900 - 890 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoistIng apparatus are used within a building in the course...such construction, the contractors or owners shall en use the shafts or openings in each floor height. If a building in course of construction is five... | |
 | Wisconsin - 1901 - 884 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...sides by a barrier at least eight feet in height. If a building in course of construction is five stories or more in height, no lumber or timber needed... | |
 | Wisconsin - 1901 - 900 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...sides by a barrier at least eight feet in height. If a building in course of construction is five stories or more in height, no lumber or timber needed... | |
 | 1901 - 1300 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...used in such construction, the contractors or owners snail cause the shafts or openings in each floor to be inclosed or fenced in on all sides by a board... | |
 | New York (State) Bureau of Labor Statistics - 1902 - 792 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...sides by a barrier at least eight feet in height. If a building In course of construction is five stories or more in height, no lumber or timber needed... | |
 | 1903 - 212 páginas
...by the plans and specifications for stairways and elevator shafts. If elevating machines or hoisting apparatus are used within a building in the course...shall cause the shafts or openings in each floor to be inclosed or fenced in on all sides by a barrier at least eight feet in height. If a building in course... | |
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If elevators, elevating machines or hod-hoisting N apparatus are used within a building in the course of construction, for the purpose of lifting materials to be used in such construction, the contractors or owners shall cause the shafts or openings in... 
