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Earlytimes
Steam Legend!!
Joined: 14 Jul 2011
Posts: 2234
Location: Simi Valley, California
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 Posted: Sat Mar 31, 2012 7:26 am Post subject: Smoke Stack question |
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I was wondering why on some old locomotives ( mid, late 1800's ) the smoke stack is bell shaped at the top ?
They look cool, I know that 
I'll see if I can find a pic ? if you have one post it please.
Perfect example
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scobby12
Full member
Joined: 01 Dec 2009
Posts: 766
Location: New Zealand
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| Posted: Sat Mar 31, 2012 8:22 am Post subject: |
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| Spark arrestors they are mainly used on wood burner like this but also coal |
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Earlytimes
Steam Legend!!
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Location: Simi Valley, California
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| Posted: Sat Mar 31, 2012 9:04 am Post subject: |
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| scobby12 wrote: | | Spark arrestors they are mainly used on wood burner like this but also coal |
I hadn't thought of that..... Thank You !
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DolwyddelanLightRail
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Joined: 10 Feb 2011
Posts: 791
Location: Lost. If found please return to nearest Railway Station.
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| Posted: Sat Mar 31, 2012 4:10 pm Post subject: |
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| Spark arrestors like that were mainly used in the US, don't think there was ever a standard gauge loco in the UK like that, and the only thing I can think of in the UK is leader, which is 2" I think! |
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angus
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Joined: 13 Feb 2011
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Location: New York, NY
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| Posted: Sat Mar 31, 2012 5:37 pm Post subject: |
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Very interesting and informative. I also imagine that because it's so wet in much of the UK, even spark augmenters wouldn't stand much of a chance of starting anything  |
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Earlytimes
Steam Legend!!
Joined: 14 Jul 2011
Posts: 2234
Location: Simi Valley, California
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| Posted: Sat Mar 31, 2012 6:00 pm Post subject: |
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| angus wrote: | | Very interesting and informative. I also imagine that because it's so wet in much of the UK, even spark augmenters wouldn't stand much of a chance of starting anything |
That's what I thought too... unlike the dry weather in the Western US.
It must of been really dry where the engine I posted above was running, it's smoke stack is extra Big.
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ministeamer
Hero Steamer
Joined: 30 Apr 2009
Posts: 1667
Location: Thornleigh, north-west of Sydney
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| Posted: Sat Mar 31, 2012 9:54 pm Post subject: |
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Hmmm. So the spark arrestor is to stop locos lighting fires in dry climates, why didn't Australian locomotives have them? Anyone have any ideas?  |
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nissan boy
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Joined: 17 Aug 2009
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Location: county durham
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| Posted: Sat Mar 31, 2012 10:11 pm Post subject: |
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we do sometimes use then and traction engines use then but they dont look out like that but they are only used for in parts of the yorkshire dales and when it is very dry and may cause a fire
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pauly
Chief Railway Engineer
Joined: 11 Apr 2008
Posts: 6827
Location: Middlesbrough, Northeast, England
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| Posted: Sat Mar 31, 2012 10:22 pm Post subject: |
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| Earlytimes wrote: | | angus wrote: | | Very interesting and informative. I also imagine that because it's so wet in much of the UK, even spark augmenters wouldn't stand much of a chance of starting anything |
That's what I thought too... unlike the dry weather in the Western US.
It must of been really dry where the engine I posted above was running, it's smoke stack is extra Big. |
Actually most of our locos have arrestors built into their smokeboxes, its actually a requirment on the NYMR during the dryer seasons. |
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David
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Joined: 15 Apr 2009
Posts: 1435
Location: Exeter, Devon
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| Posted: Sat Mar 31, 2012 10:27 pm Post subject: |
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We have one built in to the Burrell, it's hidden in the base of the chimney 
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shaygetz
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Joined: 19 Jan 2008
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Location: USA
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| Posted: Sat Mar 31, 2012 11:08 pm Post subject: |
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The shape actually created a vortex that captured the embers so they would burn out and fall away as ash, the screen was there to break up larger ones.
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Atticman
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Joined: 29 Oct 2007
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Location: Gloucestershire UK
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| Posted: Sat Mar 31, 2012 11:29 pm Post subject: |
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| angus wrote: | | Very interesting and informative. I also imagine that because it's so wet in much of the UK, even spark augmenters wouldn't stand much of a chance of starting anything |
Depends where you are in the UK, Despite it being Spring its a drought and fires start surprisingly easily 
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pauly
Chief Railway Engineer
Joined: 11 Apr 2008
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Location: Middlesbrough, Northeast, England
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| Posted: Sat Mar 31, 2012 11:34 pm Post subject: |
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| Atticman wrote: | | angus wrote: | | Very interesting and informative. I also imagine that because it's so wet in much of the UK, even spark augmenters wouldn't stand much of a chance of starting anything |
Depends where you are in the UK, Despite it being Spring its a drought and fires start surprisingly easily |
yeah Britain isnt as wet as most non-Brits seem to think, we have a drought like every year these days, Im already hearing talk of a hosepipe ban about to come into effect. |
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angus
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Joined: 13 Feb 2011
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Location: New York, NY
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| Posted: Sat Mar 31, 2012 11:54 pm Post subject: |
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| Atticman wrote: | | Depends where you are in the UK, Despite it being Spring its a drought and fires start surprisingly easily |
| pauly wrote: | | yeah Britain isnt as wet as most non-Brits seem to think, we have a drought like every year these days, Im already hearing talk of a hosepipe ban about to come into effect. |
Actually, I was being a little facetious about weather in the UK and its ramifications. As a sprog in Glasgow, not the least humid of places in that scepter'd isle, I remember that regularly there were track fires, presumably caused by cinders from the steam locos of the time. They'd keep vegetation cropped beside the tracks -- apart from those dedicated to the floral displays entered in the "Best Kept Station" competitions -- and use controlled burns as well (a kind of mini Mendocino National Forest approach). |
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steamon
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Joined: 15 Mar 2011
Posts: 41
Location: Melbourne Australia
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| Posted: Sun Apr 01, 2012 4:44 am Post subject: |
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Possibly the reason Aussie locos didn't use this type of chimney is in the 'goog old days' of steam the rail corridors were well cleared of vegetation. Not to say that steam engines didn't start a fair few fires though all the same !
Since the rise of green issues like no clearing, spraying or burning off and efforts to make rail corridors the last bastion of some threatened plant species [species which have been ploughed, grazed and sprayed to near extinction on adjacent farmland] by doing nothing in the way of clearing, many rail corridors have become weed infested and have significant fire risk these days. So much so mainline steam trips are suspended over the summer months and even the famous Puffing Billy in the Dandenong Ranges is diesel hauled on days of total fire ban and a fire patrol motor trolley is used behind trains in fire risk times.
These coments apply to Victoria, not sure if the situation in other states.
Ken |
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