12/28/2023 0 Comments Portable scaffold safetyA tower scaffold is an independent structure consisting of four vertical standards connected together horizontally and transversely to create a scaffold bay. US US573127A patent/US1471304A/en not_active Expired - LifetimeĬited By (5) * Cited by examiner, † Cited by third party Publication numberĬarriage motorizing machine for working or accessing in e.g.When it comes to scaffold there are 2 main types you can acquire, tower and mobile.high place, has left and right clutch mounted on shaft, where each clutch acts on setting of movement of left mechanic system and right mechanic system Priority Applications (1) Application NumberĪpplications Claiming Priority (1) Application Numberįamily ID=24290755 Family Applications (1) Application NumberĬited By (4) * Cited by examiner, † Cited by third party Publication numberĬarriage motorizing machine for working or accessing in e.g. JOSEPH FREDERICK YOUNG, US573127A Safety portable scaffold The dog 181 has e spring 138 secured to its cross bar 32, the lower end of said spring being secured to the fulcrum 38. The dog 31 (as also dog 131')*' has a cross bar 34 at the inner side of the side rail 10 and a cross bar 35 above and at the outside of said rail 10 and adapted to engage in any one of a vertical series of notches 36 in the respective side rails 10. Thelower'dog 3l has a cross bar 32between the side arms of said dog and a's'pring 33 issecured at one end ofsaid cross bar 32 and to the link 27 tending to rock the dog into engaging position. is providedin association with up er slide 30. A' U- shaped dog 31 is provided in association with theslide 24, to embrace rail "'lO'and-a similar dog 131. The pin 26 secures also the bar 20 and slide 24 ton link 27 the upper endof whichis' offset obliquelyjand pivoted as at 28 to an end of alever 29 fulcrumed on a slide'30 corresponding with the slide 2 1. saidslide having lateral flange25 beneath each bar 20 and atransverse pin 26 passing through the bar 20' and slide 2 1 completing the connection. E04G1/20- Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong.E04G1/18- Scaffolds primarily resting on the ground adjustable in height. ![]() E04G1/00- Scaffolds primarily resting on the ground.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. ![]() 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 Individual filed Critical Individual Priority to US573127A priority Critical patent/US1471304A/en Application granted granted Critical Publication of US1471304A publication Critical patent/US1471304A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links ![]() Original Assignee Individual 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 US573127A Inventor Young Joseph Frederick Current Assignee (The listed assignees may be inaccurate. Google Patents Safety portable scaffoldĭownload PDF Info Publication number US1471304A US1471304A US573127A US57312722A US1471304A US 1471304 A US1471304 A US 1471304A US 573127 A US573127 A US 573127A US 57312722 A US57312722 A US 57312722A US 1471304 A US1471304 A US 1471304A Authority US United States Prior art keywords slides platform bar side rails rail Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US1471304A - Safety portable scaffold
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |