MAKE A MEME View Large Image Gin pole derrick.gif en A gin pole derrick is a derrick without a boom Its guys are so arranged from its top as to permit leaning the mast in any direction The load is raised and lowered by ropes reeved through sheaves or blocks at the top ...
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Keywords: Gin pole derrick.gif en A gin pole derrick is a derrick without a boom Its guys are so arranged from its top as to permit leaning the mast in any direction The load is raised and lowered by ropes reeved through sheaves or blocks at the top of the mast date https //www osha gov/pls/oshaweb/owadisp show_document p_id 9832 p_table STANDARDS Occupational Safety Health Administration U S Department of Labor PD-USGov Uploaded with UploadWizard Derrick cranes
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