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Posts by derrickman

Showing 1334 results below:

Author Message
Topic: Public Footpaths - Fancy a paddle
derrickman

Forum: General Chat   Posted: 28/07/2009 17:40:30   Subject: Public Footpaths - Fancy a paddle
depends on the local authorities' attitude. Some have no interest in paths away from what they perceive as 'official tourist routes'.

Cornwall seem to have very little interest in that asp
Topic: Public Footpaths - Fancy a paddle
derrickman

Forum: General Chat   Posted: 28/07/2009 09:48:33   Subject: Public Footpaths - Fancy a paddle
RA can be a bit trying, I have had some pointless run-ins with them on pipeline spreads ( temporary diversions of footpaths for safety reasons are a particular bete noire with them ) but they are abou
Topic: Cornwall, Mining in the next 20 years?
derrickman

Forum: South West England   Posted: 27/07/2009 12:29:11   Subject: Cornwall, Mining in the next 20 years?
that all sounds pretty much consistent with what I heard at the time, that a part of the production in the later 80s was essentially 'picking the eyes of the mine' to retrieve known reserves which wou
Topic: Cornwall, Mining in the next 20 years?
derrickman

Forum: South West England   Posted: 25/07/2009 14:12:25   Subject: Cornwall, Mining in the next 20 years?
Hemerdon again, is a site where most of the serious investigation has been done; the coring, and the inclined drive for bulk sampling, in particular. It's well known, in the sort of detail that needs
Topic: Cornwall, Mining in the next 20 years?
derrickman

Forum: South West England   Posted: 25/07/2009 08:44:12   Subject: Cornwall, Mining in the next 20 years?
the fact of the matter is, that Cornwall has been picked over, in great detail, by a lot of knowledgeable people for a very long time.

If there's anything of value remaining it will be wel
Topic: Cornwall, Mining in the next 20 years?
derrickman

Forum: South West England   Posted: 24/07/2009 21:41:02   Subject: Cornwall, Mining in the next 20 years?
[quote="agricola"]Apart from the Camborne/Redruth area there are other areas which I would like to see investigated further and could potentially have a future. One might say that the area around Whea
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 24/07/2009 13:55:06   Subject: Destruction of the underground
ok, now I'm worried. There are a whole stack of viruses with names like that on the Norton database....


Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 24/07/2009 12:52:53   Subject: Destruction of the underground
if God doesn't strike the internet with fire and brimstone, he owes Sodom and Gomorrah a big apology... I have a simple test for anything I post, 'do I want to actively advertise this to all and sund
Topic: Cornwall, Mining in the next 20 years?
derrickman

Forum: South West England   Posted: 24/07/2009 11:14:04   Subject: Cornwall, Mining in the next 20 years?
agreed. I can't see any substantial resumption of mining in the SW ( apart from whatever takes place at S Crofty ) while there are major reserves available in countries which don't care at all about H
Topic: Cornwall, Mining in the next 20 years?
derrickman

Forum: South West England   Posted: 24/07/2009 08:48:39   Subject: Cornwall, Mining in the next 20 years?
it's good to see Crofty doing something useful. I'd like to think this will be a productive focus of the SW mining industry for a long time to come.

I can't see Wheal Jane being reworked in
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 23/07/2009 18:15:25   Subject: Destruction of the underground
this isn't unique to ME by any means. Most specialised interest groups conduct themselves in a similar fashion.

Doesn't surprise me in the least that little appears from the SW, I wouldn't
Topic: Fenix T1 crush test / barbeque
derrickman

Forum: Lamps & Lighting   Posted: 23/07/2009 16:15:08   Subject: Fenix T1 crush test / barbeque
would it be Fenii?

did I miss part of this thread, or is the barbeque test to come? What is it, anyway? Barbeque a lamp, or pressure-test a barbie?
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 23/07/2009 16:13:09   Subject: Destruction of the underground
so, it seems that Cat_bones ( above ) isn't a fan of urbex.

I've done a fair amount of entry into derelict and working urban underground sites, mostly professionally, and they can be pretty
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 23/07/2009 12:29:26   Subject: Destruction of the underground
I remember being told a long while ago that unacceptable removal of artefacts was often the removal of something you couldn't lift, or didn't have room for, yourself...

I don't particularl
Topic: Help needed in iron mine
derrickman

Forum: Exploration Chat   Posted: 23/07/2009 11:05:06   Subject: Help needed in iron mine
what you mean is, you can only see a small part of it, which isn't quite the same thing....

I'd be most interested to see this site.

There are large delaminated slabs evident in
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 23/07/2009 11:01:56   Subject: Destruction of the underground
appropriate? Possibly. I have variously seen a medieval tennis ball, found in the rafters of Westminster Great Hall from a time when it was used as a sorts arena by Henry VIII; damage in rural churche
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 23/07/2009 10:41:32   Subject: Destruction of the underground
geo-cache, if I understand it correctly, is a sort of treasure-hunt connected with google earth - people post locations and you go and find them and do whatever you do.
Topic: Destruction of the underground
derrickman

Forum: General Chat   Posted: 23/07/2009 08:40:06   Subject: Destruction of the underground
nothing new except for the increased ease of access to information for people who treat it as ' a bit of a lark'. Same people have much more access to transport, too. When I firstt went caving in abou
Topic: Hemel Hempstead chalk mines
derrickman

Forum: South East England   Posted: 22/07/2009 12:55:20   Subject: Hemel Hempstead chalk mines
does anyone have any information regarding chalk mines in Hemel Hempstead and the surrounding area?
Topic: North Derbs small collieries
derrickman

Forum: Midlands   Posted: 20/07/2009 16:46:04   Subject: North Derbs small collieries
I'd be interested to see the plan.

The shaft was sunk in 1982 or 1983, from memory, if that helps? We left two plates out on the last two rings for the incoming connection, so the roof wou
Topic: North Derbs small collieries
derrickman

Forum: Midlands   Posted: 20/07/2009 12:44:03   Subject: North Derbs small collieries
make any use you like, I found it on google, it's not a secret.

Lookin at the Doe Lea GRs I suppose the one in the document is the original drift ( now apparently lost under the M1 slip-roa
Topic: North Derbs small collieries
derrickman

Forum: Midlands   Posted: 20/07/2009 10:04:41   Subject: North Derbs small collieries
I've just uploaded a document which gives various details of small collieries in N Derbs.

it's under Doe Lea because that's how I found it, but it contains a lot of stuff about other mines
Topic: Doe Lea shaft house
derrickman

Forum: Midlands   Posted: 20/07/2009 09:07:16   Subject: Doe Lea shaft house
the quoted co-ordinates of the drift are under the SE slip road for J29, but I believe there were in total 3 drifts, all from the same yard

ok in that case, and from recollection of the si
Topic: Doe Lea shaft house
derrickman

Forum: Midlands   Posted: 19/07/2009 22:18:53   Subject: Doe Lea shaft house
looks as though it has been demolished and the shaft capped.

Land has probably been returned to agriculture, it was at the edge of a ploughed field

I believe the incline was aro
Topic: Trip: 'Cwmorthin Photography Day' - 18/07/2009
derrickman

Forum: Events   Posted: 18/07/2009 09:57:49   Subject: Trip: 'Cwmorthin Photography Day' - 18/07/2009
can't make this trip but would be interested in one later in the year when my present work-in-hand is about complete.
Topic: Drifting OT ... a Poo Boat
derrickman

Forum: North Wales   Posted: 16/07/2009 07:49:32   Subject: Drifting OT ... a Poo Boat
there's a joke here somewhere about creeks and paddles....
Topic: Find that lode
derrickman

Forum: Mining Methods & Techniques   Posted: 12/07/2009 23:47:05   Subject: Find that lode
1) surface geology.

2) local information, if any. Local inspection, pick-up sampling, review of

3) aerial photography, photogrammetry, satellite imagery

4) core dril
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 09/07/2009 22:56:34   Subject: Solo in the Coppermines, Coniston
[quote="Vanoord"][quote="derrickman"]I'm a mining professional, I get paid to do mining-related things and I hold a membership of a relevant Professional Institution.[/quote]

That makes you
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 09/07/2009 17:39:39   Subject: Solo in the Coppermines, Coniston
just in passing, Fiennes makes some fairly sniffy comments about both Messner and Erwin Kagge in his various books. I rather disagree about 'saluting shining visions'...
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 09/07/2009 17:17:48   Subject: Solo in the Coppermines, Coniston
ok, let's define 'amateur' and 'professional'

I'm a mining professional, I get paid to do mining-related things and I hold a membership of a relevant Professional Institution.

i
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 09/07/2009 15:27:48   Subject: Solo in the Coppermines, Coniston
Messner was always a professional in the purest sense of the word; someone who undertook meticulously planned expeditions including clearly defined levels of risk, for specific financial goals, with t
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 09/07/2009 12:55:11   Subject: Solo in the Coppermines, Coniston
it isn't a valid comparison.

Reinhold Messner is a professional mountaineer and adventurer, with a large and elaborate organisation supporting him.

a better comparison might be
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 09/07/2009 06:42:27   Subject: Solo in the Coppermines, Coniston
[quote="hymac580c"]Indeed, this fellow here is quite happy with what he has. And does not need health and safety to tell him what he needs to protect him from the elements of his working conditions, o
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 07/07/2009 20:14:18   Subject: Solo in the Coppermines, Coniston
being underground alone, well yes, very satisfying in some ways. Spent some time waiting for the others to mess about with cameras in Great Masson the other week, made myself comfy and turned off my l
Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 07/07/2009 15:41:34   Subject: Solo in the Coppermines, Coniston
a contemporary of mine at CSM in the early 70s, didn't survive to qualify; having suffocated in Wheal Jane, while on an unauthorised specimen-gathering trip behind the ventilation screens.

Topic: Solo in the Coppermines, Coniston
derrickman

Forum: General Chat   Posted: 07/07/2009 14:56:23   Subject: Solo in the Coppermines, Coniston
;( :surrender:

I'd like to refer all contributors to this thread to the OED, in particular the words 'objective' and 'subjective', particularly as they are commonly used in connection wi
Topic: Caption
derrickman

Forum: South West England   Posted: 07/07/2009 11:55:19   Subject: Caption
mobile single-tool air compressor and receiver set, probably made to be used around the plant ( since it appears to be run from an external electrical power supply )
Topic: Caplecleugh Survey
derrickman

Forum: North West England   Posted: 06/07/2009 15:13:28   Subject: Caplecleugh Survey
could it be this?

http://www.mineexplorer.org.uk/caplecleughhigh/cch_survey_051007/cch_survey_051007.htm
Topic: Doe Lea shaft house
derrickman

Forum: Midlands   Posted: 05/07/2009 12:03:58   Subject: Doe Lea shaft house
this has been niggling at me for a while now.... see what going on web sites does for you!

does anyone have any info about the shaft house for Doe Lea colliery ventilation shaft? I worked o
Topic: walking dragline at Corby
derrickman

Forum: General Chat   Posted: 05/07/2009 11:03:29   Subject: walking dragline at Corby
I mainly recall seeing them when I was working on a contract doing repairs to a railway viaduct which I believe was called Harpers Brook, round about 1981.

Foraky still had at that time, a
Topic: walking dragline at Corby
derrickman

Forum: General Chat   Posted: 04/07/2009 10:19:53   Subject: walking dragline at Corby
this was mentioned in another topic, I remember this machine being walked cross-country and I remember it later, awaiting scrapping.

http://en.wikipedia.org/wiki/Sundew_(dragline)

Topic: My Oldham Conversions
derrickman

Forum: Lamps & Lighting   Posted: 04/07/2009 06:55:41   Subject: My Oldham Conversions
just looking there.... interesting stuff.

ttxela makes some pointed remarks at times about this, along the lines that I am used to (a) having resources which cavers and MEs don't and (b) be
Topic: Driving adits & shafts (was 'Hi')
derrickman

Forum: General Chat   Posted: 04/07/2009 06:42:28   Subject: Driving adits & shafts (was 'Hi')
tunnel surveying isn't much different, although it can be erratic as surveying isn't really a separate discipline in civils as it is in mining. Civils has some notable 'blind spots' which revolve aro
Topic: My Oldham Conversions
derrickman

Forum: Lamps & Lighting   Posted: 03/07/2009 15:20:00   Subject: My Oldham Conversions
actually I think that's a bit scary, a cap-lamp having a heat-sink bigger than the rectifier on my old Triumph Thunderbird...

I'd be most interested to see pics of the timbering you have be
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 03/07/2009 12:41:55   Subject: Great Flat Lode
my Tutor ( Richard Edwards ) lived somewhere down there at the time, and I went to Pendarves once or twice over the years.. mainly when I was working for Foraky in the early 80s, they had a pneumatic
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 03/07/2009 11:18:48   Subject: Great Flat Lode
I remember this being done, although I don't recall the wooden headgear. I lived at Croft Mitchell in 1975-7 ( out of Troon heading away from Beacon, and carry on towards Blackrock when the main road
Topic: Big Brutus
derrickman

Forum: General Chat   Posted: 03/07/2009 06:49:51   Subject: Big Brutus
there was, for a long while in the late 70s and early 80s, a specimen of these big walking draglines in 'storage' in the Kettering area - left over from the last days of the Kettering / Corby ironston
Topic: Driving adits & shafts (was 'Hi')
derrickman

Forum: General Chat   Posted: 02/07/2009 07:58:56   Subject: Driving adits & shafts (was 'Hi')
most mining areas had similar requirements.

There is a whole body of regulation covering this, Masham Regulations, Mines and Quarries Act etc. derived from the original local patterns in t
Topic: Driving adits & shafts (was 'Hi')
derrickman

Forum: General Chat   Posted: 01/07/2009 00:16:35   Subject: Driving adits & shafts (was 'Hi')
square point dialling, to the best of my knowledge and making no allowance for the common ambiguities in old technical terms, is a simple means of projecting the dip ( hade ) downslope so that it can
Topic: Driving adits & shafts (was 'Hi')
derrickman

Forum: General Chat   Posted: 30/06/2009 16:04:48   Subject: Driving adits & shafts (was 'Hi')
the miners' dial is an 18th-century instrument, compasses were not in general use before that date.

so, Agricola's description in De Re Metallica would be good from Roman times to the peri
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