Safety Standards of the Industrial Board, Issues 1-31 |
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allowable working pressure angle approved bakeshop bars belt bolts cables car safeties castings ceiling cent Commissioner conform construction counterweights Department of Labor diameter dimensions drum Dumbwaiter elevator car employe equipped escalator existing installations factor of safety fastened feet fire fire-tube boiler flange floor freight elevators fusible plug gage gates guarded heating boilers hoisting hydraulic inches Industrial Board inspection iron Labor and Industry ladder lamps landing doors least length less load located locking device machine machinery manufacturer material maximum allowable metal minimum operation overhead passenger elevators Passenger Freight person pipe plate platform pulleys requirements rivets rules rungs Safety Standards safety valve SAMUEL SEMPLE screws Section set screws shaft shaftway side rails specified standard railings staybolts stays steam steel switches tensile strength test specimen thickness tion toe boards toilet rooms tube holes water closet water-tube boilers wheels width WILLIAM LAUDER wire wood