23 pages matching Derricks in this book
Results 1-3 of 23
What people are saying - Write a review
We haven't found any reviews in the usual places.
Accident Prevention Organization
43 other sections not shown
accident prevention acetylene American Red Cross artificial respiration avoid barricades blasting boiler braced brakes bucket building carbon monoxide cause chain clean cofferdam condition construction contractor crane cylinders danger Derricks diameter disability dismemberment electric employees engineer equipment excavation explosives falling fastened feet fire fire extinguishers flammable floor foreman fracture goggles ground guard guard rails gudgeon pin handling hazards hoisting inches Industrial Indemnity injury inspected installed kink ladders legs lights live end load machine Manila rope material metal method motor nails National Safety Council necessary never operations persons piles pipe placed planks platform possible practical pressure properly protected rails removed rip saws safe safety department safety engineer scaffolds SECTION securely shaft sheaves shoring shovel side slings steel storage stored superintendent swinging table saw tion toe-board trench truck unloading valve victim walls wear welding wire rope workers workmen worn