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#281
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Welding cast iron
On Wed, 27 Jul 2011 19:46:49 +0100, James Heaton put finger to keyboard and
typed: "Andy Breen" wrote in message ... On Wed, 27 Jul 2011 08:35:32 +0100, John Williamson wrote: Neil Williams wrote: On Tue, 26 Jul 2011 22:07:11 +0100, Roland Perry wrote: Anyone here still watching a CRT television? Yep. I watch so little TV I can't be bothered changing it. Neil +1 +2 +3. I'm of the mindset that I don't throw out items that work and meet my needs. Current living room telly second hand from a relative, getting on for 20 years old. Bedroom telly bought with a month's overtime in 1998. And still got an old and working Hitachi set which was a Christmas present in I think 1988 - no remote but works fine. Was my monitor for the Commodore 64 for a good while! We have two TVs in the house. One in the living room, and one in my study. Both were, until just over a year ago, CRTs. The one in my study started flickering and losing colour, and it was clear that it wasn't going to last much longer. So I bought a new LCD TV for the living room, with the intention of transferring the previous main TV to the study and throwing mine out. I got it as far as the bottom of the stairs (my study, at the time, being at the top of a three-story house), and realised that I'd never get it all the way up on my own. After pondering for a while, and seeing just how much better the picture was on the new set in the living room, I went out and bought another LCD set (although a bit smaller) for the study. Sometimes, being suitable for a purpose is about more than just the primary function. Anyone who has ever had to carry a large CRT set around, and seen how much space it takes up, will be aware that replacing it with a flat panel for that reason alone is often entirely justifiable. Mark -- Blog: http://mark.goodge.co.uk Stuff: http://www.good-stuff.co.uk |
#282
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Welding cast iron
On Tue, 26 Jul 2011 22:07:11 +0100, Roland Perry wrote:
Even more recently, CRTs were still commonplace, but these days they are already starting to look dated. My last CRT monitors went a couple of years ago, but my first LCD was as relatively recent as 2001 (and I'm still using it, albeit on a server where the small screen size isn't an issue). Anyone here still watching a CRT television? We still have a CRT TV - for the amount that it gets used, and the quality of what's on anyway, it's not worth buying a new one. I still use CRT monitors; I find the picture on good* ones much more pleasing on the eye (particularly for extended periods) than an LCD. I just picked up a couple more last week - one to use on the kids' PC, with the second being kept as a source of spares. * it's hard to find really good ones around here, though - most of it's Gateway junk and they never were up to much even when new. With them being so heavy, it's not viable to have them shipped from anywhere. I really, really hate 'upgrading' things because someone declares what I have to be obsolete. It's only obsolete when it no longer does a useful job or I can no longer repair it when it breaks, and no sooner! cheers Jules |
#283
Posted to uk.d-i-y,uk.railway
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Welding cast iron
Jules Richardson wrote:
On Tue, 26 Jul 2011 22:07:11 +0100, Roland Perry wrote: Even more recently, CRTs were still commonplace, but these days they are already starting to look dated. My last CRT monitors went a couple of years ago, but my first LCD was as relatively recent as 2001 (and I'm still using it, albeit on a server where the small screen size isn't an issue). Anyone here still watching a CRT television? We still have a CRT TV - for the amount that it gets used, and the quality of what's on anyway, it's not worth buying a new one. I still use CRT monitors; I find the picture on good* ones much more pleasing on the eye (particularly for extended periods) than an LCD. I just picked up a couple more last week - one to use on the kids' PC, with the second being kept as a source of spares. * it's hard to find really good ones around here, though - most of it's Gateway junk and they never were up to much even when new. With them being so heavy, it's not viable to have them shipped from anywhere. I really, really hate 'upgrading' things because someone declares what I have to be obsolete. It's only obsolete when it no longer does a useful job or I can no longer repair it when it breaks, and no sooner! cheers Jules OK Jules, want a pair of G4 macs then? :-) Were working last time I switched em on.. |
#284
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Welding cast iron
On Thu, 28 Jul 2011 14:19:42 +0000 (UTC), Jules Richardson
wrote: I still use CRT monitors; I find the picture on good* ones much more pleasing on the eye (particularly for extended periods) than an LCD. I don't unless the refresh rate is very high - 90Hz or better. I'm quite sensitive to the flicker - gives me headaches. Neil -- Neil Williams, Milton Keynes, UK |
#285
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Welding cast iron
In article ,
Clive wrote: In message , Sam Wilson writes I remember being told about a fusible plug coming away on a preserved Black 5 on the S&C some years ago. IIRC correctly the plug had been cross-threaded and no one noticed. The loco wasn't fitted with a rocking grate and I was told the crew had to shovel the fire out through the cab rather than just being able to drop it. The usual way to drop a fire is by removing about six bars of the grate and scraping the entire fire into it. Fire-droppers had a special hooked fire iron to whip out the bars with and could drop a complete fire in a matter of minutes. You couldn't shovel out a fire as a fire iron is of no use towards the firehole doors and a standard shovel would just catch fire if you attempted to remove burning coals with it. Interesting. I'm only reporting what I heard from a colleague who knew the crew. I can't find a report of the incident. Sam |
#286
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Thu, 28 Jul 2011 18:20:35 +0100, Sam Wilson wrote:
In article , Clive wrote: The usual way to drop a fire is by removing about six bars of the grate and scraping the entire fire into it. Fire-droppers had a special hooked fire iron to whip out the bars with and could drop a complete fire in a matter of minutes. You couldn't shovel out a fire as a fire iron is of no use towards the firehole doors and a standard shovel would just catch fire if you attempted to remove burning coals with it. Reading this prompts another thought, regarding the development of locomotives in the earlies. I've not seen it listed before, but surely one of the major advantages of a separate firebox (as adopted by Stephenson's works from Rocket onwards, though not by some other builders until much later [1]) is that it would allow the fire to be dumped reasonably easily (as above), whereas with a flue-type grate the whole fire would have to be raked out through the back of the box across the footplate. Not idea, if the feed-pump has packed in, you're miles from help and the water level is dropping... [1] The Albion locomotive in Nova Scotia, built (or at least purchased from) Raine and Burn in 1856, lacks a separate firebox. -- Andy Breen, not speaking on behalf of Aberystwyth University "The internet, that wonderful tool for bringing us into contact with things that make us wish we could scrub our brains out with dental floss.." (Charlie Stross) |
#287
Posted to uk.d-i-y,uk.railway
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Welding cast iron
"Andy Breen" wrote Reading this prompts another thought, regarding the development of locomotives in the earlies. I've not seen it listed before, but surely one of the major advantages of a separate firebox (as adopted by Stephenson's works from Rocket onwards, though not by some other builders until much later [1]) is that it would allow the fire to be dumped reasonably easily (as above), whereas with a flue-type grate the whole fire would have to be raked out through the back of the box across the footplate. Not idea, if the feed-pump has packed in, you're miles from help and the water level is dropping... It also depends on the crew knowing what to look for, and what to do if something goes wrong. http://www.raib.gov.uk/publications/...3_Kirklees.cfm Whist the fusible plug did its job, the delay by the crew in dumping the fire may well have caused damage to the boiler. Peter |
#288
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Welding cast iron
On Fri, 29 Jul 2011 12:07:42 +0100, Peter Masson wrote:
"Andy Breen" wrote Reading this prompts another thought, regarding the development of locomotives in the earlies. I've not seen it listed before, but surely one of the major advantages of a separate firebox (as adopted by Stephenson's works from Rocket onwards, though not by some other builders until much later [1]) is that it would allow the fire to be dumped reasonably easily (as above), whereas with a flue-type grate the whole fire would have to be raked out through the back of the box across the footplate. Not idea, if the feed-pump has packed in, you're miles from help and the water level is dropping... It also depends on the crew knowing what to look for, and what to do if something goes wrong. http://www.raib.gov.uk/publications/ current_investigations_register/110703_Kirklees.cfm Whist the fusible plug did its job, the delay by the crew in dumping the fire may well have caused damage to the boiler. I'm pretty sure the (main-line) use of flue-type fireboxes went out before fusible plugs were introduced (the only case of the two coming together on main-line locomotives that I can think of is that batch of L&Y 0-8-0s which had the corrugated marine-type "fireboxes"). They didn't last long like that. -- Andy Breen, not speaking on behalf of Aberystwyth University "The internet, that wonderful tool for bringing us into contact with things that make us wish we could scrub our brains out with dental floss.." (Charlie Stross) |
#289
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Jul 27, 7:14*pm, harry wrote:
Whether you could tell the difference as to whether steam or water was present on opening the cock is an experiment I've never tried. * This is basic operating practice for steam locos, as a backup for a failed gauge glass. |
#290
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Jul 29, 12:21*pm, Andy Breen wrote:
I'm pretty sure the (main-line) use of flue-type fireboxes What's a "flue type firebox" ? If you mean a flued boiler, then they went out very early on, as they had so little heating area. They were only practical for Lancashire boilers because they could be much longer and were followed by economiser chambers too. Even the Lancashire was usually a Galloway boiler in later years, with cross- tubes. The later multi-tubular version is generally called a "launch-type" or gunboat boiler. These had some use for small ships, and for small narrow gauge locos - Arthur Heywood in particular used them. They have the same cylindrical furnace with only a small ashpan beneath the grate, but as they have firetubes similar to a conventional loco boiler, they also have plenty of convective heating area. Wikipedia has articles on both of these types, neither of which are as bad as usual. Launch boilers were never used on mainline locomotives, as they have too little radiative heating area (i.e. firebox surface) and so their power output is low, even if they're reasonably efficient overall. They were used in later years by both the LNWR for a class of small shunters and also by the L&Y for the 0-8-0s you mention. Neither of these were long-haul locomotives, but rather shunting within a yard and with pauses between moves to recover. The L&Y locos had reasonable tractive effort (cylinder size and pressure), but couldn't sustain this for any long period, owing to the lack of firebox evaporative capacity. There's also a suspicion that they were more the result of lobbying at Horwich by local makers of corrugated furnaces for the mill engine trade. Certainly not a sucessful or repeated experiment. |
#291
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Jul 29, 11:23*am, Andy Breen wrote:
Reading this prompts another thought, regarding the development of locomotives in the earlies. I've not seen it listed before, but surely one of the major advantages of a separate firebox (as adopted by Stephenson's works from Rocket onwards, though not by some other builders until much later [1]) is that it would allow the fire to be dumped reasonably easily The biggest difference is that a furnace in a flue can burn coal, unlike Rocket, which had to burn the more expensive coke. It wasn't for a few decades after Rocket prompted the switch to Stephenson's more powerful firebox and thus a more compact locomotive, before the invention of the brick arch allowed a return to coal burning. |
#292
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Fri, 29 Jul 2011 07:36:14 -0700, Andy Dingley wrote:
On Jul 29, 11:23Â*am, Andy Breen wrote: Reading this prompts another thought, regarding the development of locomotives in the earlies. I've not seen it listed before, but surely one of the major advantages of a separate firebox (as adopted by Stephenson's works from Rocket onwards, though not by some other builders until much later [1]) is that it would allow the fire to be dumped reasonably easily The biggest difference is that a furnace in a flue can burn coal, unlike Rocket, which had to burn the more expensive coke. The S&D managed to burn coke for a few years (as a trial) in flue-type 'boxes, and coal in fireboxes. It produced rather a lot of smoke, but as most of the land around the railway was owned by shareholders in the company that wasn't an issue (the same, I think, could be said of the other companies which burned coal - both in flue-type furnaces and fireboxes - in the same era) It wasn't for a few decades after Rocket prompted the switch to Stephenson's more powerful firebox and thus a more compact locomotive, before the invention of the brick arch allowed a return to coal burning. Coke was mandated for smoke reduction, and firebox engines seem to have been perfectly capable of burning coal (possibly with a different arrangement of air-holes and firebars), ablet at the cost of a lot of smoke. Some railways were burning coal with (relatively) low smoke emission before the brick arch too. Even neglecting the complex fireboxes of McConnell, Cudworth and Beattie there was the arrangment of air-holes in the box developed by Cowan on the GNoS in the middle 1850s that worked so well that (IIRC) it was only under Pickersgill that they switched to the brick arch (about 1900, I think...). -- Andy Breen, not speaking on behalf of Aberystwyth University "The internet, that wonderful tool for bringing us into contact with things that make us wish we could scrub our brains out with dental floss.." (Charlie Stross) |
#293
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Fri, 29 Jul 2011 07:33:03 -0700, Andy Dingley wrote:
On Jul 29, 12:21Â*pm, Andy Breen wrote: I'm pretty sure the (main-line) use of flue-type fireboxes What's a "flue type firebox" ? If you mean a flued boiler, then they went out very early on, as they had so little heating area. They were only practical for Lancashire boilers because they could be much longer and were followed by economiser chambers too. Even the Lancashire was usually a Galloway boiler in later years, with cross- tubes. Boilers with a single flue (straight through or return type) lasted in new-builds through to the early 1840s for main line use (Stockton and Darlington Railway, Clarence Railway, West Hartlepool Railway..). They were cheap - and in fact several batches of locomotives with flue-type boilers were built for the S&D after they'd had a period of building locomotives with tubular boilers (both straight-through multitube and return-flow multitube). The later multi-tubular version is generally called a "launch-type" or gunboat boiler. These had some use for small ships, and for small narrow Or, in marine use, a "locomotive boiler".. :-) gauge locos - Arthur Heywood in particular used them. They have the same cylindrical furnace with only a small ashpan beneath the grate, but as they have firetubes similar to a conventional loco boiler, they also have plenty of convective heating area. This was what I meant - a cylindrical flue-type firebox, feeding into either straight-through multitubes (Dodds, Hackworth - both brothers, Adamson, Heywood..) or a return-flow arrangement (Hackworth). These were built for main-line use through to the later 1840s on the S&D (observe Derwent, built 1845 with a flue-type grate feeding a return-flow multitube arrangment..). Industrial locomotives with this arrangment continued to be built considerably later, and some of these ran for significant distances over main lines (the West Hartlepool railway outsourced much of its mineral traffic to colliery owners using their won engines, for example..). Launch boilers were never used on mainline locomotives, as they have too little radiative heating area (i.e. firebox surface) and so their power output is low, even if they're reasonably efficient overall. Universal until the very end of the 1840s for mineral traffic on the S&D (and used for several fast passenger engines) - these engines lasted past the 1870s in main line use.. Also used on several other companies main lines (Llanelly Railway, West Cornwall Railway, West Hartlepool Railway, Clarence Railway..). So certainly not "never used".. They were used in later years by both the LNWR for a class of small shunters and also by the L&Y for the 0-8-0s you mention. Neither of these were long-haul locomotives, but rather shunting within a yard and with pauses between moves to recover. The L&Y locos had reasonable tractive effort (cylinder size and pressure), but couldn't sustain this for any long period, owing to the lack of firebox evaporative capacity. There's also a suspicion that they were more the result of lobbying at Horwich by local makers of corrugated furnaces for the mill engine trade. Certainly not a sucessful or repeated experiment. Agreed - though their building also followed a couple of very nasty firebox collapses traced to problems with staying. They were an attempt to do away with staying altogether. -- Andy Breen, not speaking on behalf of Aberystwyth University "The internet, that wonderful tool for bringing us into contact with things that make us wish we could scrub our brains out with dental floss.." (Charlie Stross) |
#294
Posted to uk.d-i-y,uk.railway
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Welding cast iron
This is proving an expensive thread: just ordered a reprint of Wood's
"Practical treatise on railways" and a copy of Warren's centenary history of Stephenson's.. Oh well, good excuse to buy more books :-) -- From the Model M of Andy Breen, speaking only for himself |
#295
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Welding cast iron
On Jul 29, 1:25*pm, Andy Dingley wrote:
On Jul 27, 7:14*pm, harry wrote: Whether you could tell the difference as to whether steam or water was present on opening the cock is an experiment I've never tried. * This is basic operating practice for steam locos, as a backup for a failed gauge glass. There are two guage glasses. I have never known one to fail. They are changed regularly, they get wire drawn from being blown down. They are surrounded by a thick glass safety box to prevent accidental damage and to protect the operator if the glass fails. I have known a steam arm to block. We never found the reason for it either. |
#296
Posted to uk.d-i-y,uk.railway
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Welding cast iron
In message
, harry writes There are two guage glasses. Not on Western Locomotives. They have only one with two small cocks at the levels of the top and bottom of the gauge glass to make sure the boiler is somewhere in between. -- Clive |
#297
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On 30/07/2011 01:21, Clive wrote:
In message , harry writes There are two guage glasses. Not on Western Locomotives. They have only one with two small cocks at the levels of the top and bottom of the gauge glass to make sure the boiler is somewhere in between. I would have thought that if the boiler was missing, you might notice it without the need for small cocks top and bottom! :-) Cheers Puffernutter |
#298
Posted to uk.d-i-y,uk.railway
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Welding cast iron
In message , puffernutter
writes On 30/07/2011 01:21, Clive wrote: In message , harry writes There are two guage glasses. Not on Western Locomotives. They have only one with two small cocks at the levels of the top and bottom of the gauge glass to make sure the boiler is somewhere in between. I would have thought that if the boiler was missing, you might notice it without the need for small cocks top and bottom! :-) Cheers I had to read it about three times before I spotted my mistake, proves I'm human, I hope? ;-) -- Clive |
#299
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Sun, 31 Jul 2011 01:32:05 +0100, Clive wrote:
In message , puffernutter writes On 30/07/2011 01:21, Clive wrote: In message , harry writes There are two guage glasses. Not on Western Locomotives. They have only one with two small cocks at the levels of the top and bottom of the gauge glass to make sure the boiler is somewhere in between. I would have thought that if the boiler was missing, you might notice it without the need for small cocks top and bottom! :-) Cheers I had to read it about three times before I spotted my mistake, proves I'm human, I hope? ;-) :-) I've always assumed so... Coming back to the however-did-they-manage-before-gauge-glasses angle, I hope to have some more info on that in the next few days, having just ordered a copy of Wood's 'Practical treatise on railways' (the bookseller didn't say whether it was the 1825 or 1831 edition, but either might be able to cast some light on the subject).. -- From the Model M of Andy Breen, speaking only for himself |
#300
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Jul 29, 4:15*pm, Andy Breen wrote:
The later multi-tubular version is generally called a "launch-type" or gunboat boiler. These had some use for small ships, and for small narrow Or, in marine use, a "locomotive boiler".. :-) You have to be careful with that - some naval "locomotive boilers" had Belpaire fireboxes. |
#301
Posted to uk.d-i-y,uk.railway
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Welding cast iron
On Tue, 02 Aug 2011 07:00:20 -0700, Andy Dingley wrote:
On Jul 29, 4:15Â*pm, Andy Breen wrote: The later multi-tubular version is generally called a "launch-type" or gunboat boiler. These had some use for small ships, and for small narrow Or, in marine use, a "locomotive boiler".. :-) You have to be careful with that - some naval "locomotive boilers" had Belpaire fireboxes. Examples? Genuinely - I'm interested, as I wasn't aware of that.. Now where's my copy of the Admiralty Manual of Engineering gone? It was on the shelf above this computer last time I saw it... -- From the Model M of Andy Breen, speaking only for himself |
#302
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Welding cast iron
On 28/07/2011 15:23, The Natural Philosopher wrote:
OK Jules, want a pair of G4 macs then? :-) Suggest post this to uk.comp.vintage. Andy |
#303
Posted to uk.d-i-y
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Welding cast iron
Andy Champ wrote:
On 28/07/2011 15:23, The Natural Philosopher wrote: OK Jules, want a pair of G4 macs then? :-) Suggest post this to uk.comp.vintage. Andy Christ they aren't THAT old! |
#304
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Welding cast iron
The Natural Philosopher wrote:
Andy Champ wrote: On 28/07/2011 15:23, The Natural Philosopher wrote: OK Jules, want a pair of G4 macs then? :-) Suggest post this to uk.comp.vintage. Andy Christ they aren't THAT old! Introduced in 1999? That makes them antiques in computerland. ;-) -- Tciao for Now! John. |
#305
Posted to uk.d-i-y,uk.railway
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Welding cast iron
harry wrote:
If you look at a guage glass it has diagonal stripes behind it. If the glass is full of water they are refracted to the horizontal as seen through te sight glass. If the glass is full of steam, they remain diagonal. So you know whether the water level is above or below the glass. When the first main transformer to be built for the Class 357 stock was delivered, we noticed that, unlike previous UK practice, the oil level sight glass was plain, rather than prismatic, and the oil was almost clear, so the level was difficult to see. I suggested diagonal stripes behind the tube, an idea that was initially regarded as, at best, strange. I persevered, and quickly produced a suitably marked piece of card. The result was as I had anticipated, much to the amazement of all around. Sometimes steam can help electrics! Chris -- Chris J Dixon Nottingham UK Have dancing shoes, will ceilidh. |
#306
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Welding cast iron
On Sun, 07 Aug 2011 08:10:59 +0100, Chris J Dixon wrote:
harry wrote: If you look at a guage glass it has diagonal stripes behind it. Just got my copy of the `825 edition of Wood's "Practical treatise..". I'll have a work through it and see if what he has to say about water levels in boilers and how they were judged. -- Andy Breen, not speaking on behalf of Aberystwyth University "The internet, that wonderful tool for bringing us into contact with things that make us wish we could scrub our brains out with dental floss.." (Charlie Stross) |
#307
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Welding cast iron
On Aug 2, 3:04*pm, Andy Breen wrote:
On Tue, 02 Aug 2011 07:00:20 -0700, Andy Dingley wrote: On Jul 29, 4:15*pm, Andy Breen wrote: The later multi-tubular version is generally called a "launch-type" or gunboat boiler. These had some use for small ships, and for small narrow Or, in marine use, a "locomotive boiler".. :-) You have to be careful with that - some naval "locomotive boilers" had Belpaire fireboxes. Examples? Genuinely - I'm interested, as I wasn't aware of that.. Early TBDs (torpedo boat destroyers) of the early 1890s. This is difficult, as there were several building yards and a vast array of boiler designs at this time, often obscure water-tube inventions. There seems to be little written distinction between the launch-type and the locomotive-type "locomotive" boilers - you have to look at the builder's plans. Havock (Yarrows) was one with a dual-firedoor Belpaire, I think Fervent, Charger, Dasher, Hasty & Zephyr might have been too. Lyon's "The First Destroyers" is a very good read on the development of turbine propulsion around this time, although it doesn't go into as much detail on boilers as you or I might like. |
#308
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Welding cast iron
On Wed, 10 Aug 2011 04:08:31 -0700, Andy Dingley wrote:
On Aug 2, 3:04Â*pm, Andy Breen wrote: On Tue, 02 Aug 2011 07:00:20 -0700, Andy Dingley wrote: On Jul 29, 4:15Â*pm, Andy Breen wrote: The later multi-tubular version is generally called a "launch-type" or gunboat boiler. These had some use for small ships, and for small narrow Or, in marine use, a "locomotive boiler".. :-) You have to be careful with that - some naval "locomotive boilers" had Belpaire fireboxes. Examples? Genuinely - I'm interested, as I wasn't aware of that.. Early TBDs (torpedo boat destroyers) of the early 1890s. This is difficult, as there were several building yards and a vast array of boiler designs at this time, often obscure water-tube inventions. There seems to be little written distinction between the launch-type and the locomotive-type "locomotive" boilers - you have to look at the builder's plans. Havock (Yarrows) was one with a dual-firedoor Belpaire, I think Fervent, Charger, Dasher, Hasty & Zephyr might have been too. Lyon's "The First Destroyers" is a very good read on the development of turbine propulsion around this time, although it doesn't go into as much detail on boilers as you or I might like. You're entirely right. I can't believe that I missed that one, given that (a) it's a period/area that interests me and (b) I have a copy of Lyon on my shelf. A quick inspection of the drawings revealed that Yarrow did, indeed, use a true locomotive-type boiler in their early TBDs. I must now start checking to see whether they'd done the same in their later, larger TBs or in any of the TGBs they'd been responsible for. Thanks for that. I most heartily apologise for my unforgivable mistake. feels chastened -- Andy Breen, not speaking on behalf of Aberystwyth University "The internet, that wonderful tool for bringing us into contact with things that make us wish we could scrub our brains out with dental floss.." (Charlie Stross) |
#309
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Welding cast iron
On Jul 29, 12:21*pm, Andy Breen wrote:
I'm pretty sure the (main-line) use of flue-type fireboxes went out before fusible plugs were introduced (the only case of the two coming together on main-line locomotives that I can think of is that batch of L&Y 0-8-0s which had the corrugated marine-type "fireboxes"). They didn't last long like that. Henry Hoy's batch of the L&YR Class 30. I've done some wiki stuff about them, under the Hoy article. Ahrons' ''Development of British Loco Design'' has some photos, if I get time to scan them. Strange thing is that they were a response to a firebox problem that he'd caused himself, by specifying a new, and brittle, alloy for the firebox rod stays. |
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