Safety in Handling Material* 



her 



il.m^cr r. hu Mings is the liability of ovcrloa 

 the floors \vith materials. In the best pi. 

 the buildings have signs posted in conspicuous 

 places giving the allowable load per foot on each 

 floor, and it is one of the responsibilities of the 

 foreman in charge to see to it that these maximum 



Safe Handling of A/ lings. All 



ill cranes require constant care and fre- 

 quent inspection. A definite schedule should be 

 set up for this inspection and faithfully m 

 tairu tchet should be provided on all 



elevating hoists to preclude the danger of over- 

 ling. Cables are considered safer than chains 

 for general work. The hooks should be of ap- 

 proved type, and so arranged that they cannot 

 twist while hoisting. Sheaves should be provided 

 with tfuanls to prevent the cable from running 

 out of the grooves. 



In slinging heavy material, the load should be 

 1 before starting a ii it to see that it is 



securely slung and hooked. The ropes, cables, or 

 chains should be so slung as to make an angle of 

 not less than sixty degrees with the horizontal. 

 This is trry important, because a flat sling with 

 a hook close to the work is under an enormous 

 and unnecessary tension, greatly in excess of the 

 weight of the load. Accidents most frequently 

 occur from hooks catching in the work after thcv 

 have been unhooked. These happen because the 

 crane men raise the loads before they are sccurelv 



