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Posts by derrick man

Showing 64 results below:

Author Message
Topic: The great county adit
derrick man

Forum: South West England   Posted: 09/11/2020 12:13:14   Subject: The great county adit
One of the things people tend to overlook nowadays, is that in the 1970s it was still possible to meet people who had seen these things, first hand.

That information is now completely lost
Topic: Lithium Mining in Cornwall
derrick man

Forum: General Chat   Posted: 06/11/2020 15:21:36   Subject: Lithium Mining in Cornwall
[quote="John Lawson"]as i understand this process? it seems that it would be used in conjunction with a geothermal heating project?
Fundamentally the operators pump down water, which heats up un
Topic: Brookmans Limestone Mine Info
derrick man

Forum: South West England   Posted: 07/09/2020 18:17:02   Subject: Brookmans Limestone Mine Info
[quote="Paul Marvin"]That journal looks more like 1985 not 2005 , thanks for sharing it .[/quote]

Cavers can be like that. I saw one with a mullet only last year...
Topic: Brookmans Limestone Mine Info
derrick man

Forum: South West England   Posted: 07/09/2020 13:51:11   Subject: Brookmans Limestone Mine Info
https://www.wessex-cave-club.org/wp-content/uploads/2016/09/Wessex-Cave-Club-Journal-Number-294.pdf

I visited this site as an outlier to the work at Combe Down in 2009, no action taken
Topic: Dufton Fell Mines
derrick man

Forum: North West England   Posted: 02/09/2020 19:03:55   Subject: Dufton Fell Mines
PW?
Topic: Dufton Fell Mines
derrick man

Forum: North West England   Posted: 02/09/2020 16:02:40   Subject: Dufton Fell Mines
Speaking of which, on the way up from Dufton to High Cup Nick, just after entering the area where ground birds nest there is a prominent arch, or portal beside the track. It looks like a walled-up adi
Topic: Miners Tools.
derrick man

Forum: Mining Methods & Techniques   Posted: 31/08/2020 15:44:03   Subject: Miners Tools.
Don’t see why not. It’s rendered beef or mutton fat, after all. It's a main ingredient of pemmican, which I will say is just about the most disgusting thing I’ve ever eaten...
Topic: Caernaron Tunnels
derrick man

Forum: North Wales   Posted: 25/08/2020 17:42:46   Subject: Caernaron Tunnels
When I was at Combe Down, one of the lesser problems of the job was that at least two of the local pubs had access to the workings, and used them as an extension to their cellars, or for lock-ins.
Topic: Lithium Mining in Cornwall
derrick man

Forum: General Chat   Posted: 25/08/2020 11:37:04   Subject: Lithium Mining in Cornwall
I see they were filming for Countryfile at KEM, although KEM itself didn’t get a mention. Some nice drone footage of Fortescues engine houses and the area, plus what might politely be described as “pr
Topic: Cannock coalfield project
derrick man

Forum: Midlands   Posted: 20/08/2020 09:57:02   Subject: Cannock coalfield project
Industry depends, ultimately, on power, ore and water.

It isn’t usually possible to divert water flows with any degree of success - the Soviets tried it, and look how THAT turned out, in t
Topic: Cannock coalfield project
derrick man

Forum: Midlands   Posted: 20/08/2020 08:31:01   Subject: Cannock coalfield project
Coal mining is fundamentally different from metal mining, it consists of recovering a resources which exists in very large, very extensive seams, the value of which per ton is extremely low.

Topic: Chemical rock splitting
derrick man

Forum: Mining Methods & Techniques   Posted: 30/07/2020 18:08:51   Subject: Chemical rock splitting
I’ve used it for specialist demolition operations, particularly splitting old brickwork away from concrete. Works well for that sort of thing, but in general terms it’s not much use.
Topic: Video Explore : A Stunningly Beautiful Mine With Bad Air!
derrick man

Forum: General Chat   Posted: 09/07/2020 13:46:36   Subject: Video Explore : A Stunningly Beautiful Mine With Bad Air!
I’m afraid that my view if all this sort of thing was permanently affected by an incident in the 1970s, in which two “vacation casuals” at Wheal Jane were asphyxiated within minutes of passing behind
Topic: Louisa Antimony Mine. D&G.
derrick man

Forum: Scotland   Posted: 05/07/2020 07:15:55   Subject: Louisa Antimony Mine. D&G.
Well, mines ARE dangerous. Ever written a Risk Assessment for mining? I have, and they aren’t pretty.
Topic: Save a Railway Tunnel
derrick man

Forum: Mine Tramways and Railways   Posted: 23/06/2020 10:21:44   Subject: Save a Railway Tunnel
I have to say, looking at the report, that that looks like a nasty old place, with a fair likelihood of continuing long-term problems from the surrounding water and workings, and best left to its own
Topic: The great county adit
derrick man

Forum: South West England   Posted: 06/06/2020 12:25:50   Subject: The great county adit
I worked for Foraky Ltd in the early 80s, they had contracted to Wheal Jane and South Crofty at various times in the 1960s and 1970s. I knew the area quite well at the time, having lived, worked and s
Topic: Novel, but fatal, use of a straw hat
derrick man

Forum: General Chat   Posted: 04/05/2020 12:39:56   Subject: Novel, but fatal, use of a straw hat
[quote="Peter Burgess"]I am using this time of "house arrest" to trawl the internet for archives relating to the various places of interest to me. In 1890, there was an appalling accident in the silic
Topic: United Downs copper
derrick man

Forum: South West England   Posted: 13/04/2020 19:08:51   Subject: United Downs copper
I don’t have the detail to hand, and I’ve forgotten most of what I knew forty-odd years ago about United Downs, but I find it extremely difficult to believe that the “old man” would leave a deposit of
Topic: Croesor Rhosydd TT - latest gear/boat situation?
derrick man

Forum: North Wales   Posted: 15/02/2020 15:00:55   Subject: Croesor Rhosydd TT - latest gear/boat situation?
[quote="JonK"]I am often puzzled why people bother with the boats. I have always worn a wetsuit and a buoyancy aid and swam across. Be warned however I once got tangled in one of the ropes across the
Topic: South Crofty - current situation?
derrick man

Forum: South West England   Posted: 14/02/2020 02:44:19   Subject: South Crofty - current situation?
[quote="The Fresh Prince of Portreath"][quote="waggy"]Just seen an update Strongbow are raising another $2 mil by private placement for more drilling at Crofty (always room for more!) and working capi
Topic: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
derrick man

Forum: North East England   Posted: 20/01/2020 21:42:06   Subject: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
I’m working at present at a Tunnelling job near Peterborough, and one of the managers was at Sirius before being chopped suddenly... he seems to be expecting a call...
Topic: South Crofty - current situation?
derrick man

Forum: South West England   Posted: 15/01/2020 09:03:28   Subject: South Crofty - current situation?
Tbh, in an area as small, and as thoroughly picked over as West Cornwall, I’d rate the chances of finding viable deposits which can be worked by historically used techniques as round about, three part
Topic: South Crofty - current situation?
derrick man

Forum: South West England   Posted: 15/01/2020 03:58:19   Subject: South Crofty - current situation?
[quote="Boy Engineer"][quote]and pointy shoes[/quote]

..... And the other thing, at the risk of taking us further off-topic, were the number of folk who pulled their shirtsleeves up at the
Topic: South Crofty - current situation?
derrick man

Forum: South West England   Posted: 15/01/2020 03:40:20   Subject: South Crofty - current situation?
Treliver was a new one on me. An interesting example of the power of the internet, in some ways.

Found some photos, which were an interesting look at this sort of low-level field operation
Topic: Report spam
derrick man

Forum: New recruits!   Posted: 04/01/2020 08:51:58   Subject: Report spam
Doesn’t this forum have a function to report spam? There is an obvious spambot, a few posts down..
Topic: Wheal Peevor
derrick man

Forum: South West England   Posted: 30/12/2019 14:40:03   Subject: Wheal Peevor
This is all a bit nostalgic. When I first saw the Great Flat Lode engine houses, in the 1970s they were pretty much inaccessible for the gorse and other overgrowth, like lost cities in the South Ameri
Topic: South Crofty - current situation?
derrick man

Forum: South West England   Posted: 30/12/2019 14:32:29   Subject: South Crofty - current situation?
I don’t doubt that I’ll regret asking this, but what is the current situation at South Crofty? I did a google search, having been put in mind of it by posts on here, and I get an impression of financi
Topic: Images of South Crofty Mine
derrick man

Forum: South West England   Posted: 30/12/2019 10:51:48   Subject: Images of South Crofty Mine
Those are quite tremendous, easily the best images of the last days of hand mining with airlegs to be seen anywhere.

The only comparable pictures I know, are Nadine Gordimer’s work depicti
Topic: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
derrick man

Forum: North East England   Posted: 12/11/2019 08:26:51   Subject: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
There is a repeated pattern of failed investment in major infrastructure projects, going back to the construction of the canal network in the 1700s; repeated in the “railway mania” of the 1840s and 18
Topic: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
derrick man

Forum: North East England   Posted: 12/11/2019 07:56:30   Subject: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
Read the last part of this piece - similar conclusions

https://www.telegraph.co.uk/business/2019/11/11/desperate-government-ignoring-risks-selling-british-steel-chinese/
Topic: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
derrick man

Forum: North East England   Posted: 11/11/2019 16:39:16   Subject: Construction Phase of 'Woodsmith Mine' Launched by Sirius Minerals
... nothing would induce me to invest in a project of this nature, least of all my pension fund or life savings. Mark Twain’s aphorism to the effect that “a Western mine, is a hole in the ground, owne
Topic: The Archaeology of Underground Mines and Quarries
derrick man

Forum: For Sale! (and wanted / for swap)   Posted: 02/03/2019 17:16:46   Subject: The Archaeology of Underground Mines and Quarries
[quote="ttxela"]I'm definitely going to order a copy, however......

[quote="Moorebooks"]
Every county in England has a network of mine and quarry workings, a little-seen underground wo
Topic: Craig -y -Dinas Upper Silica Mine
derrick man

Forum: South Wales   Posted: 29/12/2018 18:09:03   Subject: Craig -y -Dinas Upper Silica Mine
Just found this on the Industrial Railways Society website, obviously the same report

https://www.irsociety.co.uk/Archives/7/dinas_quarzite_mine.htm
Topic: Ron Hooper ACSM
derrick man

Forum: South West England   Posted: 19/07/2018 05:42:17   Subject: Ron Hooper ACSM
[quote="B175"]As for the Survey plan the two things I recall that would really get Ron's goat were triangulation sightlines drawn through buildings and lurid crayon-like topography colours instead of
Topic: Ron Hooper ACSM
derrick man

Forum: South West England   Posted: 18/07/2018 15:12:28   Subject: Ron Hooper ACSM
I last met Ron about 20 years ago. He was much amused to learn the role that surveying had played in my subsequent career, not having been distinguished in the field in my time at CSM.

One
Topic: Surveying weekend re GIS & Cave Surveying
derrick man

Forum: General Chat   Posted: 17/03/2018 07:20:49   Subject: Surveying weekend re GIS & Cave Surveying
Sketchfab is a very useful app..
Topic: Surveying weekend re GIS & Cave Surveying
derrick man

Forum: General Chat   Posted: 17/03/2018 07:04:37   Subject: Surveying weekend re GIS & Cave Surveying
I was involved with mapping the outside and inside of a derelict industrial chimney using laser scanners and a drone, a few years ago. Fascinating stuff.
Topic: Communicating in shafts
derrick man

Forum: General Chat   Posted: 17/03/2018 07:01:08   Subject: Communicating in shafts
You have a new van?
Topic: Communicating in shafts
derrick man

Forum: General Chat   Posted: 17/03/2018 06:59:56   Subject: Communicating in shafts
I’ve used those Mitek ones for communicating at motorcycle race events, very useful. They aren’t the best around but they are good value and have a good range and battery life.
Topic: Bad air in ironstone mines
derrick man

Forum: New recruits!   Posted: 15/02/2018 05:33:31   Subject: Bad air in ironstone mines
When I was a student, one of my contemporaries died in Wheal Jane. In company with an experienced miner, the two of them passed behind a ventilation brattice (a temporary barrier, serving the purpose
Topic: Whitehaven redevelopment
derrick man

Forum: North West England   Posted: 13/11/2017 08:58:04   Subject: Whitehaven redevelopment
This is a new one on me - anyone shed any light on this?

http://www.westcumbriamining.com
Topic: 3D Drone Survey
derrick man

Forum: General Chat   Posted: 30/01/2017 00:03:19   Subject: 3D Drone Survey
I was involved with surveying a historic (i.e., derelict) chimney in Baku a couple of years ago, using a drone, photogrammetry and external laser scanning. Worked extremely well.

There was
Topic: Lithium Mining in Cornwall
derrick man

Forum: General Chat   Posted: 29/01/2017 23:49:48   Subject: Lithium Mining in Cornwall
[quote="RAMPAGE"]Sorry Stuey, what's a tah-tah?[/quote]

Small crappy Indian car...
Topic: Lithium Mining in Cornwall
derrick man

Forum: General Chat   Posted: 29/01/2017 23:48:56   Subject: Lithium Mining in Cornwall
[quote="RAMPAGE"]
Why would you put it on a mistress?

Not very erotic, is it?[/quote]

You might be surprised.. takes all sorts, so they say. Just make sure you can tell butt
Topic: Lithium Mining in Cornwall
derrick man

Forum: General Chat   Posted: 24/01/2017 06:58:10   Subject: Lithium Mining in Cornwall
Being old enough to recall the "Hot Rocks" programme at Rosemanowse in the 70s, and given the extensive research done over the years into mine discharges, I'm sure that if payable lithium values in mi
Topic: Remote exploration developments
derrick man

Forum: Europe   Posted: 18/12/2016 12:23:50   Subject: Remote exploration developments
Hope this is readable

http://www.iom3.org/materials-world-magazine/news/2016/mar/02/drones-explore-flooded-mines-europe
Topic: PUB - Morning coffee and WHAT!
derrick man

Forum: General Chat   Posted: 17/12/2016 12:06:13   Subject: PUB - Morning coffee and WHAT!
An old favourite

http://www.bpmlegal.com/wpschitt.html

Topic: 1779 Chamber (photo)
derrick man

Forum: Midlands   Posted: 16/11/2016 21:39:56   Subject: 1779 Chamber (photo)
[quote="ttxela"]That all makes sense.

I think the grille on the connection is clearly visible from the showcave if I remember correctly.

The gate is mostly hidden from showcave v
Topic: Helmet Tips
derrick man

Forum: Mining Heritage   Posted: 13/11/2016 21:31:17   Subject: Helmet Tips
I've never worn one with a lamp, I've got a couple of miners helmets and they serve for me.

The Centurion is a good hat, though, robust, cheap, easily available and the lowest and snuggest
Topic: Helmet Tips
derrick man

Forum: Mining Heritage   Posted: 13/11/2016 19:02:32   Subject: Helmet Tips
They are a cheap version of the Petzl type helmets, for wind farm work. So, I suppose they are much like wearing a Petzl

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