Tank Builders' Scaffold : A supported scaffold consisting of a platform resting on brackets that are either directly attached to a cylindrical tank or attached to devices that are attached to such a tank
US Department of Labor, Scaffolding eTool: Glossary, Occupational Safety & Health Administration OSHA, Washington, D.C., USA 2010. https://www.osha.gov/SLTC/etools/scaffolding/gloss ary.html, (OSHA/ Scaffolding - Amer) {619}