![]() ![]() The clamping device 5 comprises a pair of spaced eye- bolts 20 and a bar 2|. The plank 4 is supported by the horizontal section 6 and is clamped thereto by the clamping device5. The stirrups should also be provided with wall-engaging means in order to maintain the plank a fixed distance from the wall. In order to keep the plank from sliding out of the stirrups when the stirrups are disposed at different heights some type of fastening means is generally provided to secure the plank to the stirrups. During raising and lowering the plank is frequently disposed at a considerable angle to the horizontal for it is often necessary to raise or lower one stirrup in advance of the other in order to have the scaffold clear some projection or other object. ![]() 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 2.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. You agree to our cookies by continuing to use our website.- Google Patents US2639951A - Swing stage scaffoldÄownload 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. For more information about how they process data for each of these purposes, please see the privacy policy from Google and their advertising page for more information about Google advertising, how your information is used in the context of advertising, and how long Google stores this information. Google and on their partner sites, personalize and apps. Google uses the information shared by sites and apps to provide, maintain, and improve their services, develop new services, measure ad effectiveness, protect against fraud and abuse, and display the content and ads you view. These partners may combine this information with other information that you have provided to them or that they have collected based on your use of their services. We also share information about your use of our site with our partners such as Google for social media, advertising and analytics. We use cookies to personalize content and advertisements, to provide social media features and to analyze our website traffic. ![]()
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