mark99 Posted July 27, 2010 Report Share Posted July 27, 2010 Just out of interest, how are these washer type adornments attached to the N/B? Weld? Glue? Link to comment Share on other sites More sharing options...
Derek R. Posted July 27, 2010 Report Share Posted July 27, 2010 Spit. Welded. Link to comment Share on other sites More sharing options...
Keeping Up Posted July 27, 2010 Report Share Posted July 27, 2010 Spit. Welded. No you can't weld with spit. You can glue (loosely) with spit, but weld needs to be a lot hotter than that. Link to comment Share on other sites More sharing options...
Roger t' Bodger Posted July 27, 2010 Report Share Posted July 27, 2010 Does the experienced Richard Horne have them adorning his working Town Class repro NB's? If he doesn't, than he is more than cool! Link to comment Share on other sites More sharing options...
Derek R. Posted July 27, 2010 Report Share Posted July 27, 2010 Spit - after a good vindaloo . . . Link to comment Share on other sites More sharing options...
mark99 Posted July 27, 2010 Author Report Share Posted July 27, 2010 Yes I read they were welded but how? Looking at them, there is no fillet weld all around the circumference, in fact, there seems to be a <1mm circumferential gap which is filled with primer/paint?, which, as it's probably hard to pre-prep is a time bomb for rust. Rgds Mark Link to comment Share on other sites More sharing options...
alan_fincher Posted July 27, 2010 Report Share Posted July 27, 2010 A number you see on badly blacked hulls with rust streaks running from them make me think that these adornments are sometimes just a corrosion source. There are no fake rivets on Arundel, and it looks heaps better for that. Link to comment Share on other sites More sharing options...
RLWP Posted July 27, 2010 Report Share Posted July 27, 2010 (edited) Yes I read they were welded but how? Looking at them, there is no fillet weld all around the circumference, in fact, there seems to be a <1mm circumferential gap which is filled with primer/paint?, which, as it's probably hard to pre-prep is a time bomb for rust. Rgds Mark I believe you weld them on through the hole in the middle, fill the hole with weld, then grind them back to a rivet shaped head with an angle grinder Richard Edited July 27, 2010 by RLWP Link to comment Share on other sites More sharing options...
casper ghost Posted July 27, 2010 Report Share Posted July 27, 2010 We used 'real' rivets, but then cheated by drilling a hole pushing them through and welding from the back... Casp' Link to comment Share on other sites More sharing options...
RLWP Posted July 27, 2010 Report Share Posted July 27, 2010 I'm away now! Even better rivetting video on Youtube Richard Link to comment Share on other sites More sharing options...
Guest Posted July 27, 2010 Report Share Posted July 27, 2010 (edited) Just out of interest, how are these washer type adornments attached to the N/B?Glue? Yup that's as good as it gets - thank goodness for Evo Stick.... Edited July 27, 2010 by NB No Deadlines Link to comment Share on other sites More sharing options...
Derek R. Posted July 27, 2010 Report Share Posted July 27, 2010 (edited) Richard wrote: I'm away now! Even better rivetting video on Youtube How about that - catching hot rivets in the gloved hands! Irn Bru? Derek Edited July 27, 2010 by Derek R. Link to comment Share on other sites More sharing options...
mark99 Posted July 27, 2010 Author Report Share Posted July 27, 2010 Richard wrote: I'm away now! Even better rivetting video on Youtube How about that - catching hot rivets in the gloved hands! Irn Bru? Derek Knowing me, it would go up the gauntlet Link to comment Share on other sites More sharing options...
Timleech Posted July 27, 2010 Report Share Posted July 27, 2010 We used 'real' rivets, but then cheated by drilling a hole pushing them through and welding from the back...Casp' Trouble is, unless you're using secondhand rivets, the shape is wrong as they change shape when being closed up. None of the riveting on Youtube seems to show proper flush rivetting as used by the classier yards, all that I've seen use a shaped 'snap'. Tim Link to comment Share on other sites More sharing options...
RLWP Posted July 27, 2010 Report Share Posted July 27, 2010 How about that - catching hot rivets in the gloved hands! Irn Bru? Derek I was impressed by that too. In the Tyne yards they would have used bare hands of course Richard Link to comment Share on other sites More sharing options...
David Schweizer Posted July 27, 2010 Report Share Posted July 27, 2010 I remember seeing a film of hot rivetting on a Glasgow shipyard, where the riviters were about 50 ft up from the furnaces where the rivets were breing heated. The white hot rvets were hurled upwards where they were caught by a man with a pair of tongs who then hurled the rivet up to another man who repeated the action and hurled the now only red hot rivet up to the riveters. It struck me how skilled this simple operation was, but how did they learn to do it, Did they practice with cold rivets first? Link to comment Share on other sites More sharing options...
dove Posted July 27, 2010 Report Share Posted July 27, 2010 Trouble is, unless you're using secondhand rivets, the shape is wrong as they change shape when being closed up.None of the riveting on Youtube seems to show proper flush rivetting as used by the classier yards, all that I've seen use a shaped 'snap'. Tim This is us repairing Dove, not the best way, but when there's only two of you. Andrew Link to comment Share on other sites More sharing options...
Radiomariner Posted July 27, 2010 Report Share Posted July 27, 2010 Richard wrote: I'm away now! Even better rivetting video on Youtube How about that - catching hot rivets in the gloved hands! Irn Bru? Derek I was impressed by that too. In the Tyne yards they would have used bare hands of course Richard I remember seeing a film of hot rivetting on a Glasgow shipyard, where the riviters were about 50 ft up from the furnaces where the rivets were breing heated. The white hot rvets were hurled upwards where they were caught by a man with a pair of tongs who then hurled the rivet up to another man who repeated the action and hurled the now only red hot rivet up to the riveters. It struck me how skilled this simple operation was, but how did they learn to do it, Did they practice with cold rivets first? I recall joining my first ship in dry dock at Wallsend. I used to watch the riveters for ages and only saw one hot rivet dropped. There was however a nasty accident at that time. The ship was a tanker. A hot rivet would be thrown up from below and caught (usually with an asbestos glove but sometimes with tongs) and quickly inserted into hole. The guy with the pneumatic hammer would then hold it in place with the hammer and another chap, inside, when seeing the hot rivet would then hammer the rivet with another pneumatic hammer. After a couple of seconds the outside guy would join in with the hammering. Apparently, the rivet would not fit in the hole, so the apprentice stuck his finger in to see why not. Chap inside saw something coming through the hole and hammered it flat. How did they learn to do it? Darwinian Selection! In the local pub (I think it was called The Albert) it was always safe to ask a riveter if he wanted another drink. They were stone deaf. Link to comment Share on other sites More sharing options...
WotEver Posted July 28, 2010 Report Share Posted July 28, 2010 Link to comment Share on other sites More sharing options...
NB Alnwick Posted July 28, 2010 Report Share Posted July 28, 2010 Just out of interest, how are these washer type adornments attached to the N/B? Weld? Glue? Not all builders replicate rivets by tacking washers on with a spot of weld in the middle and then relying on filler or paint - our boat, which is all welded, has many real rivets as well 'replica rivets' - the latter are welded in place round the outside as well as being welded on the inside before being dressed off. I cannot say why this was done this way or even why they were deemed necessary but the boat was built by a well respected builder for his own use. I suppose we could grind the 'replica rivets' off (if we knew which ones were not real) but we have many other maintenance tasks to carry out before we even consider such a folly! Link to comment Share on other sites More sharing options...
RLWP Posted July 28, 2010 Report Share Posted July 28, 2010 I discarded those clips because I thought heating up the rivets with oxy-acetylene was beyond the pale Richard Link to comment Share on other sites More sharing options...
Strads Posted July 28, 2010 Report Share Posted July 28, 2010 Mine are plastacine, i repair with blue tac.... so far ive no big issues with them going rusty,, only 2 appear to have a hint of rust, so they appear well sealed to the hull... time will tell.. Link to comment Share on other sites More sharing options...
luctor et emergo Posted July 28, 2010 Report Share Posted July 28, 2010 real rivet porn Link to comment Share on other sites More sharing options...
wrigglefingers Posted July 28, 2010 Report Share Posted July 28, 2010 Mine are plastacine, i repair with blue tac.... so far ive no big issues with them going rusty,, only 2 appear to have a hint of rust, so they appear well sealed to the hull... time will tell.. Tupperware boat with rivets? It was only a matter of time ... No washer rivets on Cobbett, couldn't see the point and I did believe that they were glued on having watched said action taking place at a boatyard Far Far Away. David assure me that he welds them on, but I still couldn't see the point although it might just be a matter of taste. Dr Watson is having gazillions on his shell. But then it has a real engine not an imitation one! Link to comment Share on other sites More sharing options...
Dominic M Posted July 29, 2010 Report Share Posted July 29, 2010 Anyone out there got rivets tattooed on to their bodies? If so, where? Link to comment Share on other sites More sharing options...
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