Tag: Iron Bridge

Viewed from the west, the iron bridge at Ironbridge in Shropshire, England.

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In the early eighteenth century, the only way to cross the Severn Gorge was by ferry. Having said that, the industries that were being expanding in the space of Coalbrookdale and Broseley needed a a lot more reliable crossing.

In 1773, Thomas Farnolls Pritchard[2] wrote to a community ironmaster, John Wilkinson of Broseley, to counsel setting up a bridge out of solid iron. By 1775, Pritchard had finalised the strategies, but he died in December 1777, only a month soon after perform had started.[3]

Abraham Darby III, who was the grandson of the 1st foundry operator and an ironmaster doing the job at Coalbrookdale in the gorge, was commissioned to cast and create the bridge. The iron for the new bridge was solid at his foundry.

Shares ended up issued to increase the £3,200 needed, and Darby agreed to fund any excess. While it experienced been predicted that 300 tons of iron would be needed (costing £7 a ton), in the finish 379 tons were being used, costing Darby and his organization nearly £3,000. There would be a lot of other charges to bear (masonry abutments, assembly, and many others.), so that the challenge was considerably more costly than to start with envisaged. Darby bore most of the charge overrun, and was in personal debt for the relaxation of his daily life.

Remaining the 1st of its form, the building experienced no precedent the method selected to produce the construction was hence centered on carpentry. Just about every member of the body was solid individually, and fastenings followed these utilised in woodworking, this kind of as the mortise and tenon and blind dovetail joints, adapted as important to the diverse attributes of solid iron. Bolts had been made use of to fasten the half-ribs jointly at the crown of the arch. Quite massive components were essential to develop a structure to span 100 ft rising to 60 toes over the river. The greatest parts ended up the 50 percent-ribs, each about 70 ft extensive and weighing 5.25 tons. The bridge contains additional than 800 castings of 12 standard sorts.

The bridge was lifted in the summer months of 1779, and it was opened on New Year’s Working day 1781.

en.wikipedia.org/wiki/The_Iron_Bridge

Posted by brianac37 on 2014-03-23 23:31:56

Tagged: , Iron Bridge , Ironbridge Gorge , Abraham Darby , Shropshire , England

#home furnishings #Diy #woodwork #woodworking #freedownload#woodworkingprojects #woodsmith ,wood craft, wooden planer, wonderful woodworking, wood chairs, wooden functioning resources, preferred woodworking, woodworking publications, woodworking workbench plans

Viewed from the east, the iron bridge at Ironbridge in Shropshire, England.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In the early eighteenth century, the only way to cross the Severn Gorge was by ferry. Having said that, the industries that were being developing in the space of Coalbrookdale and Broseley wanted a more trusted crossing.

In 1773, Thomas Farnolls Pritchard[2] wrote to a community ironmaster, John Wilkinson of Broseley, to advise creating a bridge out of forged iron. By 1775, Pritchard had finalised the plans, but he died in December 1777, only a thirty day period after perform experienced begun.[3]

Abraham Darby III, who was the grandson of the initially foundry proprietor and an ironmaster functioning at Coalbrookdale in the gorge, was commissioned to solid and create the bridge. The iron for the new bridge was cast at his foundry.

Shares ended up issued to raise the £3,200 essential, and Darby agreed to fund any surplus. While it had been predicted that 300 tons of iron would be required (costing £7 a ton), in the end 379 tons were utilized, costing Darby and his corporation nearly £3,000. There would be a lot of other charges to bear (masonry abutments, assembly, etcetera.), so that the undertaking was significantly extra highly-priced than first envisaged. Darby bore most of the cost overrun, and was in financial debt for the relaxation of his everyday living.

Remaining the very first of its type, the development experienced no precedent the technique picked out to produce the construction was for that reason based mostly on carpentry. Each individual member of the frame was cast separately, and fastenings adopted those employed in woodworking, such as the mortise and tenon and blind dovetail joints, adapted as necessary to the unique qualities of cast iron. Bolts ended up used to fasten the fifty percent-ribs collectively at the crown of the arch. Really significant sections were essential to generate a framework to span 100 feet soaring to 60 ft higher than the river. The premier parts were being the fifty percent-ribs, each about 70 ft lengthy and weighing 5.25 tons. The bridge includes additional than 800 castings of 12 standard kinds.

The bridge was raised in the summer season of 1779, and it was opened on New Year’s Working day 1781.

en.wikipedia.org/wiki/The_Iron_Bridge

Posted by brianac37 on 2014-03-23 23:31:55

Tagged: , Abraham Darby , Iron Bridge , Ironbridge Gorge , Shropshire , England

#home furniture #Do-it-yourself #woodwork #woodworking #freedownload#woodworkingprojects #woodsmith ,wood craft, wood planer, high-quality woodworking, wood chairs, wood functioning tools, preferred woodworking, woodworking guides, woodworking workbench plans