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Posts by ChrisJC

Showing 761 results below:

Author Message
Topic: Boxed Off
ChrisJC

Forum: General Chat   Posted: 19/11/2020 15:23:24   Subject: Boxed Off
Googling for 'box mine rescue' gives an impressively long list. All f*ckwits.

If I were Hansons, I'd be pouring concrete in all the entrances.

Chris.
Topic: Nenthead Mines Ownership
ChrisJC

Forum: North West England   Posted: 12/11/2020 10:35:12   Subject: Nenthead Mines Ownership
[quote="PeteJ"]Chris - Cumbria does not have the resources to care for the site. We have a chance of being able to obtain conservation grants. We can generate sufficient income from Open Days to cover
Topic: Nenthead Mines Ownership
ChrisJC

Forum: North West England   Posted: 11/11/2020 17:57:27   Subject: Nenthead Mines Ownership
Is that on the same sort of idea as Cwmystwyth, i.e. the landowner (Cumbria County Council) need to be rid of the liability and sold it for a song to a reputable local charity?

Chris.
Topic: Ventilation in mines and caves
ChrisJC

Forum: General Chat   Posted: 10/11/2020 15:39:07   Subject: Ventilation in mines and caves
I've not seen this mentioned yet, the word brattice:

https://en.wikipedia.org/wiki/Brattice

Chris.
Topic: AI and Underground Monitoring
ChrisJC

Forum: General Chat   Posted: 05/11/2020 13:24:02   Subject: AI and Underground Monitoring
Have you looked for other models, specifically non AI models?

I wonder if the model for this one is very straightforward - it is just the change in air pressure or something of that nature.
Topic: Disappearing Footpaths
ChrisJC

Forum: General Chat   Posted: 03/11/2020 16:43:37   Subject: Disappearing Footpaths
Yes, the classification changing at a parish boundary is pretty common. Also the termination of a RoW at a parish boundary is common too. Yet not all footpaths were ever through routes. They might hav
Topic: Disappearing Footpaths
ChrisJC

Forum: General Chat   Posted: 03/11/2020 10:33:55   Subject: Disappearing Footpaths
[quote="TwllMawr"] The history of how they became lost in the first place would be interesting to know.
[/quote]

That is fairly straightforward. Before 1949 (I think), there were no su
Topic: Disappearing Footpaths
ChrisJC

Forum: General Chat   Posted: 02/11/2020 19:49:46   Subject: Disappearing Footpaths
That is a good link. It is a shame you can't drill into it to see what footpaths they have got on their list already as I know at least two in my parish that need to be done.

My only reserv
Topic: One for car enthusiasts
ChrisJC

Forum: General Chat   Posted: 20/10/2020 12:36:12   Subject: One for car enthusiasts
It's had a Rover V8 in it for decades. I tuned it up to about 300BHP this time. She goes well...

Chris.
Topic: One for car enthusiasts
ChrisJC

Forum: General Chat   Posted: 20/10/2020 11:41:14   Subject: One for car enthusiasts
[quote="royfellows"]Chris, your pics aren't working. I'm keen to see what you done to it.[/quote]

Odd. The pics are hosted here:
http://www.cowdery.org.uk/images/Landie-1989-small.png<
Topic: One for car enthusiasts
ChrisJC

Forum: General Chat   Posted: 20/10/2020 09:41:10   Subject: One for car enthusiasts
Since we're on about proper vehicles now, here is my Landie in 1989:

[img]http://www.cowdery.org.uk/images/Landie-1989-small.png[/img]

Not long after I became the owner.

Topic: Clogau
ChrisJC

Forum: North Wales   Posted: 13/10/2020 08:53:58   Subject: Clogau
[quote="staffordshirechina"]
The dam was put in in the early 1990's after a consultants report suggested there could be a surge if the lake broke through.
Unlikely perhaps but good for (our)
Topic: Clogau
ChrisJC

Forum: North Wales   Posted: 11/10/2020 08:33:44   Subject: Clogau
All sounds very positive. Nothing a good bit of bureaucracy can't kill off though sadly.

Chris.
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 07/10/2020 10:52:56   Subject: Oxygen levels
Interesting measurements Steve. I hope that by NAMHO next year I will have some equipment and will have tried it out in a few places, so we can compare notes.

Chris.
Topic: Parys Mountain near Amlwch
ChrisJC

Forum: North Wales   Posted: 04/10/2020 20:22:21   Subject: Parys Mountain near Amlwch
[quote="rufenig"]calling it "Wales's grand canyon".
[/quote]

Hmm, the Grand Canyon is a mile deep and 277 miles long. Seems like a mildly optimistic comparison!

Chris.
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 02/10/2020 14:32:23   Subject: Oxygen levels
[quote="sinker"]
No offense Wormster, the Crowcon is ideal for industrial / factory / petro-chem type stuff (basically clean) but for mining, underground and wet / muddy / damp conditions the MSA
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 02/10/2020 08:22:49   Subject: Oxygen levels
Thanks Wormster. I've not come across Crowcon before, but this one looks suitable as it has 5 gas dectors, which should be enough:
https://www.crowcon.com/products/portables/gas-pro/
O2, CO,
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 01/10/2020 10:03:19   Subject: Oxygen levels
Also explains that 12% oxygen at the top of a mountain is OK because the CO2 level is insignificant, whereas 12% down a mine could be a problem as the CO2 might well be 8%...

So as Tom says
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 01/10/2020 07:01:21   Subject: Oxygen levels
[quote="Morlock"]Not sure if this clarifies the issue/
[/quote]
I'm not sure either! ;D

I'm going to have to think about what that actually tells us (if anything).

Chri
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 30/09/2020 13:31:32   Subject: Oxygen levels
Interesting. The idea that O2 is replaced by CO2 in approximately equal proportions should be testable with a suitable gas monitor. That does surprise me a bit - I would have thought that the biggest
Topic: Oxygen levels
ChrisJC

Forum: General Chat   Posted: 30/09/2020 10:15:26   Subject: Oxygen levels
I was thinking about oxygen levels in Iron Mines. I saw a video the other day of somebody with an oxygen meter around 14% and they appeared quite breathless.

Then I considered my recent exp
Topic: Shaft Exploring
ChrisJC

Forum: General Chat   Posted: 30/09/2020 08:00:54   Subject: Shaft Exploring
[quote="sinker"]
Glad to hear that I'm not the only cynic (realist) who thinks that this kind of stuff is a waste of bloody time.

[/quote]

Yeah, but most new technology is a
Topic: The track (photo) bryneglwys
ChrisJC

Forum: North Wales   Posted: 28/09/2020 13:31:23   Subject: The track (photo) bryneglwys
I think our job-list for the return trip is getting quite long!

Chris.
Topic: Cwmorthin on the telly
ChrisJC

Forum: North Wales   Posted: 25/09/2020 11:05:57   Subject: Cwmorthin on the telly
I think you need to amend the Freudian slip - spelling bloke as block!

Chris.
Topic: Geology / drainage patterns - Talyllyn valley
ChrisJC

Forum: General Chat   Posted: 24/09/2020 11:54:56   Subject: Geology / drainage patterns - Talyllyn valley
I'd not put those two together. I presumed the deposit at the foot of the lake was a terminal moraine.
I also presumed that there was a 2nd one at Cedris, a 3rd one at Abergynolwyn (still there)
Topic: Geology / drainage patterns - Talyllyn valley
ChrisJC

Forum: General Chat   Posted: 21/09/2020 10:01:20   Subject: Geology / drainage patterns - Talyllyn valley
Maybe the arrangement of the Dysynni has been repeated in the past.
Previous moraines have permitted rivers to flow across the valley for extended periods before subsequent glaciations have deepe
Topic: Geology / drainage patterns - Talyllyn valley
ChrisJC

Forum: General Chat   Posted: 21/09/2020 08:49:05   Subject: Geology / drainage patterns - Talyllyn valley
[quote="BertyBasset"]I wonder though if the Bala Fault wasn't actually reflected by a valley until glaciation. So you could have three rivers crossing the fault at altitude, then glaciation digs it ou
Topic: Geology / drainage patterns - Talyllyn valley
ChrisJC

Forum: General Chat   Posted: 19/09/2020 12:41:44   Subject: Geology / drainage patterns - Talyllyn valley
I made an observation about the rivers and valleys around the Talyllyn valley whilst looking at Bryneglwys. At this point any connection with mining ends, but maybe somebody on here knows about geolog
Topic: Ardda Sulphur Mine
ChrisJC

Forum: North Wales   Posted: 17/09/2020 19:40:04   Subject: Ardda Sulphur Mine
I was out with Mr. Down and Beyond this evening, so I mentioned it to him in case he doesn't see it.

Chris.
Topic: Prince Edward Gold Mine (mine)
ChrisJC

Forum: North Wales   Posted: 16/09/2020 08:50:42   Subject: Prince Edward Gold Mine (mine)
Personally I would go to Rhosydd. It's a nice walk up to it (weather depending!), and you can have a good poke about inside without the need for any gear. If you're brave, you can climb out of the Twl
Topic: Lead ingot from wreck
ChrisJC

Forum: New recruits!   Posted: 14/09/2020 14:55:32   Subject: Lead ingot from wreck
Is there not a missing letter (judging from the spacing) - PO?NTPRAN

I suggest the letter I would fit quite well.

Chris.
Topic: Bug on Lead Mine maps
ChrisJC

Forum: Site Updates, Suggestions & Corrections   Posted: 14/09/2020 11:00:09   Subject: Bug on Lead Mine maps
I have been alerted to the fact that there are too many lead mines to show on a map!
If you search for all lead mines (A-Z) it gives you an error "Uh oh, too many mines to show on a map (2183), t
Topic: Look at This Bad Boy
ChrisJC

Forum: Midlands   Posted: 08/09/2020 17:38:56   Subject: Look at This Bad Boy
[quote="Paul Marvin"]https://www.ebay.co.uk/itm/114132350741


Is that not cool or what guys ![/quote]

The local mine explorers still use them in the Forest of Dean.

Topic: Collapse in Gilfach
ChrisJC

Forum: North Wales   Posted: 28/08/2020 12:08:16   Subject: Collapse in Gilfach
[quote="TwllMawr"]Btw, I came across a personal artefact of someone’s close by one of the adits. If whoever owns it would like it back somehow please pm me with a description. [/quote]

Almo
Topic: Collapse in Gilfach
ChrisJC

Forum: North Wales   Posted: 28/08/2020 10:10:42   Subject: Collapse in Gilfach
What you'd be stood on might go with it, so worth remaining on the rope!

I look forward to hearing how it goes...

Chris.
Topic: Collapse in Gilfach
ChrisJC

Forum: North Wales   Posted: 28/08/2020 09:19:06   Subject: Collapse in Gilfach
I think you could help it on it's way. If you abseiled down from the steps, you can look underneath the stacked deads onto the top of all of the hanging death. I reckon if you lobbed a few boulders on
Topic: Collapse in Gilfach
ChrisJC

Forum: North Wales   Posted: 28/08/2020 07:06:48   Subject: Collapse in Gilfach
Nice. Yes, those pictures illustrate the problem pretty well!

Chris.
Topic: Muscles in a mine.
ChrisJC

Forum: General Chat   Posted: 27/08/2020 15:57:38   Subject: Muscles in a mine.
I was expecting a thread about how strength can be used advantageously with SRT and clambering up stopes etc.

Muscles / mussels !

Chris.
Topic: Collapse in Gilfach
ChrisJC

Forum: North Wales   Posted: 23/08/2020 10:14:40   Subject: Collapse in Gilfach
Morning All,
A select few elite mine explorers tried to make the through trip at Gilfach (Cwm Pennant) yesterday.
However they were thwarted by what appeared to be a recent collapse in the
Topic: Croesor approach road
ChrisJC

Forum: North Wales   Posted: 19/08/2020 15:19:45   Subject: Croesor approach road
It's also not a road...

Chris.
Topic: Gas Monitors
ChrisJC

Forum: Exploration Chat   Posted: 15/08/2020 14:28:33   Subject: Gas Monitors
Thanks for the input all. I shall look at the Altair 4x and see what the options are.

Chris.
Topic: Gas Monitors
ChrisJC

Forum: Exploration Chat   Posted: 14/08/2020 13:14:07   Subject: Gas Monitors
Good Afternoon All,
It is likely that I will soon be exploring places for which having a Gas Monitor would be sensible. They are Ironstone, so I believe the general problem is oxidation of the i
Topic: Back underground ????
ChrisJC

Forum: General Chat   Posted: 14/08/2020 10:35:01   Subject: Back underground ????
I wouldn't say normal, but I have been out!

Chris.
Topic: Hidden BBC Wales Drama
ChrisJC

Forum: North Wales   Posted: 13/08/2020 07:59:00   Subject: Hidden BBC Wales Drama
[quote="Paul Marvin"]Yep that looks so bad as said why not use a real one[/quote]

It's quite an atmospheric setting - perhaps they couldn't find a real one set in the right environment.
Topic: Fellows lamps forum.
ChrisJC

Forum: Lamps & Lighting   Posted: 11/08/2020 19:35:57   Subject: Fellows lamps forum.
[quote="davel"]New battery for Roy's lamps?

https://www.theguardian.com/environment/2020/aug/11/powerhouses-nanotechnology-turns-bricks-into-supercapacitor-batteries

I'm not sure
Topic: Bryneglwys
ChrisJC

Forum: Mid Wales   Posted: 31/07/2020 11:22:19   Subject: Bryneglwys
[quote="JonK"]Can't remember? you were the the youngest person on that trip. If you carry on this way you will end up like somebody else we know.

Seriously, your good self and the King of
Topic: Bryneglwys
ChrisJC

Forum: Mid Wales   Posted: 21/07/2020 12:26:47   Subject: Bryneglwys
My memory is a bit vague since visiting in 2009.

We entered 15B, and descended to floor 25. Then we crossed the valley underground, and somehow got out on the Cantrybedd side. I imagine we
Topic: Bryneglwys
ChrisJC

Forum: Mid Wales   Posted: 20/07/2020 09:54:03   Subject: Bryneglwys
Worth noting that the suggestion in the PDF to buy a book from Sara Eade is problematic as I believe she has died.

Chris.
Topic: East Midlands
ChrisJC

Forum: Midlands   Posted: 06/07/2020 14:11:23   Subject: East Midlands
It does depend. I got some old maps from the Northamptonshire Record Office, and the cheeky buggers had put their own copyright notice on there!

Naturally I got that sorted out!

Topic: Bryn Eglwys.
ChrisJC

Forum: North Wales   Posted: 30/06/2020 16:15:55   Subject: Bryn Eglwys.
I can't remember what is in the waterfall entrance. I have an idea that it doesn't go.

But I do know you can traverse the valley from the Cantrybedd side to the Bryneglwys side although the
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