Brunel's Other BridgeBrunel Swivel Bridge Project Photos July 2019
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Investigative Work in 2019
2019 investigative work is on the rotation of the bridge
July 2019
Investigating the wheelsA day of applying Denso tape and paste to the faying surfaces of the old and new turntable rings, and the 3mm packings that lay between them.
Faying surfaces are the contacting surfaces or faces of two similar or dissimilar materials placed in tight contact to form a joint. They are mating surfaces that contain a sealant in between them during any assembly process so that there is no gap or crevice left between them.
They are used in engineering fastening and joint development of different members to form a strong structure. To prevent corrosion between the two surfaces, primers or sealing agents are used to provide an air- or moisture-tight joint. In this case we attaching a corroded wrought iron surface to a new steel ring using aluminium packers.
Ian attaching Enso paste to the corroded surface |
Aluminium packers |
David applying Enso tape to a packing strip |
Ian making sure that the whole surface is covered in paste. Note that the turntable is virtually sitting on its wheels again |
It is quite difficult to apply the paste in a confined area. Note the corrosion, and protective paint. |
Note the jack in the background. The new ring sags at the moment enabling the paste to be applied. Compare the height with May and June 2019 |
Confined space |
Packing strip not inserted yet. Ian and Geoff working together |
View of the jack lifting the bridge enough to apply the paste. The ring sits on the wheel |
An outside view of a wheel |
Packing strip inserted to the left |
Another view of the strip |
Close up of tape |
Geoff applying more tape to packing strip. Julian videoing |
Ian still applying paste, lying on a hammock of wire rope |
Paste on top of packing strip |
David getting the height right jacking on outside edge. Close to the water |
Geoff jacking on inside edge. Julian videoing |
View of the jack and wedge. Different sizes of wedges to lower the bridge |
Jack taken away and turntable old and new ring glued together |
Used a bollard for dockside restraining chain. Chain no longer needed now bridge lowered onto its wheels |
Used a girder for other restraining chain, which was rather long and heavy |
13 July
Hut painting being finished by Geoff and Julian, this time using green. Makes a change from filming |
Hut door painted |
Building id being painted by Julian. Looks good |
Greaser from wheel bearing to be replaced, which relies on being turned to get the grease in |
Smaller bearing which one can now get a grease gun on |
New volunteer William helping Bob do more surveying now that the bridge is nearly on its wheels |
Bit of a stretch for Bob. Bit difficult to see the level too |
Geoff took a close up of David Greenfield taking a photo |
Unbeknown to the other photographers, Maggie took a picture of Geoff taking a picture of Bob and David |
Ring sagging so had to be blocked up before getting welded. Shows inspection important while removing excess grease, and sweeping up needed to make life more comfortable |
Dorothea Restoration men came to check the ring before welding |
Alian man from Dorothea grinding before welding |