The stirrups are raised and lowered independently of each other by the block and tackle mechanisms, as it is desired to change the position of the scaffold with respect to a wall. A swing stage plank which supports the workmen and the material is supported by and extends between the stirrups. Scaffolds of this type generally comprise a pair of spaced stirrups which are suspended from elevated supports by block and tackle mechanisms, there being a separate block and tackle for each stirrup. E04G7/28- Clips or connections for securing boards.E04G7/02- Connections between parts of the scaffold with separate coupling elements.
E04G7/00- Connections between parts of the scaffold. E04G- SCAFFOLDING FORMS SHUTTERING BUILDING IMPLEMENTS OR AIDS, OR THEIR USE HANDLING BUILDING MATERIALS ON THE SITE REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS. 238000006011 modification reaction Methods 0.000 description 1. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by WILBERD F FEIGENBAUM filed Critical WILBERD F FEIGENBAUM Priority to US102487A priority Critical patent/US2639951A/en Application granted granted Critical Publication of US2639951A publication Critical patent/US2639951A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee WILBERD F FEIGENBAUM Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US102487A Inventor Allenbaugh Ralph Current Assignee (The listed assignees may be inaccurate. 
SWING STAGE SCAFFOLD PDF
Google Patents US2639951A - Swing stage scaffoldĭownload PDF Info Publication number US2639951A US2639951A US102487A US10248749A US2639951A US 2639951 A US2639951 A US 2639951A US 102487 A US102487 A US 102487A US 10248749 A US10248749 A US 10248749A US 2639951 A US2639951 A US 2639951A Authority US United States Prior art keywords plank section clamping bar bolts Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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