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Posts by derrickman

Showing 1334 results below:

Author Message
Topic: Driving adits & shafts (was 'Hi')
derrickman

Forum: General Chat   Posted: 30/06/2009 13:20:38   Subject: Hi
ok a bit simpler than that... essentially, yes. The Romans used a technique of aligning a number of sighting rods to produce a straight line, this is an iterative ( ie repetitive ) process and the res
Topic: 1978 - Main Incline B Floor (photo)
derrickman

Forum: North Wales   Posted: 29/06/2009 09:34:35   Subject: 1978 - Main Incline B Floor (photo)
I have seen it done a number of times over the years, I don't know how it works, or why some people can do it and not others, but it does work at least some of the time
Topic: favourite hard hat....
derrickman

Forum: General Chat   Posted: 25/06/2009 22:50:52   Subject: favourite hard hat....
they are a great hindrance for caving in tight places.. But I do prefer my MSA Skulgard ( like a Texolex with the narrow full brim ) for mine exploring
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 24/06/2009 22:15:41   Subject: Great Flat Lode
now we have come right round to another thread, accessible workings at South Carn Brea as described by Atkinson... existence of, or otherwise!
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 24/06/2009 15:52:41   Subject: Great Flat Lode
[quote="Knocker"]The mine are carrying out a lot of monitoring at surface in order to prove compliance with planning conditions. Thhere was a chart at the pblic meeting about the blasting a few weeks
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 24/06/2009 09:23:36   Subject: Great Flat Lode
what is the actual status of the site at Pendarves now?
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 24/06/2009 08:13:28   Subject: Great Flat Lode
disregarding the question of whether the various drives are at sufficiently similar levels for it to be feasible at all, which I ( for one ) don't know the answer to, I would be very dubious of the fi
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 24/06/2009 00:19:18   Subject: Great Flat Lode
I have had a fair amount of experience of monitoring underground blasting using commercially-produced accelerometers, and I would be quite surprised if you got any identifiable results from what is af
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 23/06/2009 15:58:29   Subject: Great Flat Lode
you'd probably better apologise for using upper case letters as well... ****s, didn't work that time... scunthorpe, analysis
Topic: NAMHO Conference
derrickman

Forum: Events   Posted: 23/06/2009 15:31:16   Subject: NAMHO Conference
I go down there occasionally with ttxela, I am driving from Peterborough. I'll let you know next time if you are interested
Topic: NAMHO Conference
derrickman

Forum: Events   Posted: 23/06/2009 15:19:07   Subject: NAMHO Conference
he'd be in a poor state if he did.

have you ever been to the Surrey mines?
Topic: NAMHO Conference
derrickman

Forum: Events   Posted: 23/06/2009 13:57:44   Subject: NAMHO Conference
ChrisJC - is that Huntingdon as in Oliver Cromwell?
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 23/06/2009 13:55:43   Subject: Great Flat Lode
what's wrong with Elvan ****, anyway? Is poor old Tolkein not PC enough?

I live in E Anglia and without dykes, we'd be in poor form.
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 23/06/2009 13:52:08   Subject: Great Flat Lode
interesting stuff.

when you start a bit of research and see the links within the CPO camp it all hangs together, rather.

The thing I could never understand is quite what WUM are
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 23/06/2009 08:50:21   Subject: Great Flat Lode
sounds as though a pattern is emerging here;

(1) there is a sizeable area in the Stray Park direction where two things of value may, or may not, be located - The Wide Formation and the lowe
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 22/06/2009 17:54:59   Subject: Great Flat Lode
it's difficult, because there is so little actual information available from either side.

Wheal Jane were always going to do great things with new mill gear and latest technology and it di
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 22/06/2009 14:39:49   Subject: Great Flat Lode
which all fits together.

I worked with Foraky for a while in the beginning of the 80s, they had done a deal of work on reclaiming old adits around the Crofty area in the late 60s / early 7
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 22/06/2009 12:52:05   Subject: Great Flat Lode
digressing slighly, it's curious how two fora ( ME and aditnow ) with a considerable overlap between the membership and a basically similar theme, have such differing tones.

compare this th
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 22/06/2009 10:03:28   Subject: Great Flat Lode
and is this formation what the present workings at S Crofty are seeking to work?
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 22/06/2009 09:10:30   Subject: Great Flat Lode
I wasn't aware that any part of Wheal Uny was accessible.

I know the engine house but I suppose I never paid it any attention at the time, and it is ancient history now, I haven't been in C
Topic: Great Flat Lode
derrickman

Forum: South West England   Posted: 21/06/2009 19:46:42   Subject: Great Flat Lode
is that Wheal Uny? is it accessible?
Topic: Poldark
derrickman

Forum: South West England   Posted: 20/06/2009 14:18:44   Subject: Poldark
I was told that the front of the farm house was used but not the back, but the interior scenes had already been shot, partly in another house altogether and partly in the studio and so the internal an
Topic: more bookshelf mining...
derrickman

Forum: General Chat   Posted: 20/06/2009 07:12:24   Subject: more bookshelf mining...
been having a trawl around my bookshelves..

'On The Mines', wonderful photo essay on 1960s South African gold mining

'Gold and Silver in the West', lots of super period stuff and
Topic: Poldark
derrickman

Forum: South West England   Posted: 20/06/2009 06:53:25   Subject: Poldark
I always remember it as typical period bodice-ripper in the Catherine Cookson style, my wife was a great fan of it... which says it all, really :)

if you want a really super piece of hokum,
Topic: Derbyshire Fluorite queries
derrickman

Forum: Midlands   Posted: 19/06/2009 23:30:53   Subject: Derbyshire Fluorite queries
ear defenders in the 80s? Certainly, I wore helmet mounted ones in the early 70s, in those days they were often mounted to screws drilled through the helmet - which wouldn't be allowed now :o
Topic: Poldark
derrickman

Forum: South West England   Posted: 19/06/2009 13:43:35   Subject: Poldark
I believe there were others.. a number of students worked as stage hands, as well.

I do remember that a large temporary tank was set up at one time, for a scene in which a character was su
Topic: Please help me!!
derrickman

Forum: General Chat   Posted: 19/06/2009 13:19:33   Subject: Please help me!!
well, the check weighman was not someone to be lightly offended - men were paid by his records :o
Topic: Poldark
derrickman

Forum: South West England   Posted: 19/06/2009 13:17:21   Subject: Poldark
underground scenes for the early series were filmed at the CSM's King Edward Mine during the summer vacation.

Stretching memory cells to the limit, Prof Tony Batchelor, John Watton the pho
Topic: New event added 'Boulby Mine Visit June 2009' on 16/06/2009 at 10:00
derrickman

Forum: Events   Posted: 19/06/2009 11:20:24   Subject: New event added 'Boulby Mine Visit June 2009' on 16/06/2009 at 10:00
on a slightly different note, can anyone PM me a contact at the mine?

I've been meaning to add Boulby to my contact list for some time, but I usually do this by contacting an individual rat
Topic: Please help me!!
derrickman

Forum: General Chat   Posted: 19/06/2009 11:08:52   Subject: Please help me!!
I assume this is a misprint, mis-spelling or misreading of the term 'check weighman'

your ancestor would have had the job of weighing the production ( presumably by operating the weighbridg
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 19/06/2009 09:16:29   Subject: HSE rants... good thing / bad thing?
people who say they would happily spend hours waffling to a judge, are probably people who haven't had to do it. I've been involved on two occasions with HSE proceedings following a reportable injury,
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 18/06/2009 16:55:47   Subject: HSE rants... good thing / bad thing?
soooooo ............... did you notify the school in advance that you were going to bring a safety lamp in? Because I took my old Premier carbide into my son's school a while ago, did them a one-page
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 18/06/2009 15:36:33   Subject: HSE rants... good thing / bad thing?
can't comment about tourist mines, except to say that in my experience the main problem is the low level of remuneration and lack of career progression and professional development, which makes it not
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 18/06/2009 14:41:25   Subject: HSE rants... good thing / bad thing?
I was trying NOT to rant... I am firmly of the opinion that the overall loss of management skills, caused to a significant extent by the over-promotion of 'soft' degree candidates who believe that 'ma
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 18/06/2009 12:29:37   Subject: HSE rants... good thing / bad thing?
well, yes.. but the increasingly risk-averse insurance company attitudes, driven in large part by tv adverts for law practices promoting the idea that everything is someone's fault and they owe you mo
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 18/06/2009 10:33:31   Subject: HSE rants... good thing / bad thing?
this is very much to the point.

The heavy engineering disciplines generally are places where specific targets are pursued, by people with a detailed knowledge of the subject, and it is stil
Topic: HSE rants... good thing / bad thing?
derrickman

Forum: General Chat   Posted: 18/06/2009 07:59:19   Subject: HSE rants... good thing / bad thing?
just following one of the usual HSE rants over on ME, this one about a teacher bringing a miner's lamp into class and falling foul of the HSE jobsworth there.

well, quite so. This is what h
Topic: Derbyshire Fluorite queries
derrickman

Forum: Midlands   Posted: 16/06/2009 12:38:45   Subject: Derbyshire Fluorite queries
I note that at least two members of the party are apparently wearing texolex helmets, with liner strings trailing down their backs
Topic: mine art
derrickman

Forum: General Chat   Posted: 15/06/2009 09:56:22   Subject: mine art
there are several examples at Combe Down, including a sailing ship, various names and dates and a local lady who seems to have been widely admired for reasons which remain unspecified... :blink:
Topic: trip report-recent trips may-july
derrickman

Forum: Midlands   Posted: 11/06/2009 11:24:30   Subject: trip report-recent trips may-july
[quote="ttxela"]Spinney level is a fantastic little mine and the entrance is only a little damp.

My photos came out much better without the Ready Brek effect.

I've had a look up
Topic: Disused Mine Ventilation natural and forced.
derrickman

Forum: General Chat   Posted: 11/06/2009 09:09:34   Subject: Disused Mine Ventilation natural and forced.
I've used 4" and 6" PVC gutter downpipe as ventilation tube in small diameter tunnels before now. Works well and doesn't collapse if you lay on it, lean against it, put something on top of it or just
Topic: Glove recommendation
derrickman

Forum: Exploration Chat   Posted: 11/06/2009 09:02:11   Subject: Glove recommendation
in no particular order..

1) Polyco nitrile palm, knitted back. Much as you describe, but usually yellow or green

2) those yellow knitted ones with the soft webbing. Goofy looking
Topic: trip report-recent trips may-july
derrickman

Forum: Midlands   Posted: 10/06/2009 16:11:34   Subject: trip report-recent trips may-july
the ladder shaft is above the boulder climb, there is a 'bold step' across a rift to get to it.. really there is no good reason to go there, it is an awkward take-off, drops bits of cr*p on you while
Topic: trip report-recent trips may-july
derrickman

Forum: Midlands   Posted: 10/06/2009 15:50:01   Subject: trip report-recent trips may-july
from RA's post it doesn't sound as though the raise is worth looking at. I know a thing or two about having things dropped down on me from above, and I'm done with that now

agree about the
Topic: trip report-recent trips may-july
derrickman

Forum: Midlands   Posted: 10/06/2009 15:09:06   Subject: trip report-recent trips may-july
it's that good, is it? Ok we won't bother with the drain rods then..
Topic: trip report-recent trips may-july
derrickman

Forum: Midlands   Posted: 10/06/2009 13:46:22   Subject: trip report-recent trips may-july
didn't see the wooden rails?

I think climbing the raise and sticking drain rods up the second one, then walking around the top to see where they come out, is turning into a project for nex
Topic: Disused Mine Ventilation natural and forced.
derrickman

Forum: General Chat   Posted: 10/06/2009 13:30:47   Subject: Disused Mine Ventilation natural and forced.
as evidence the recent fatality involving setting a campfire in a cave..
Topic: Disused Mine Ventilation natural and forced.
derrickman

Forum: General Chat   Posted: 10/06/2009 13:13:17   Subject: Disused Mine Ventilation natural and forced.
[quote="Boy Engineer"][quote="stuey"]If we managed to open the other shaft to this mine, I imagine the lady (who is allready highly strung) seeing smoke at the bottom of her garden would have an orgas
Topic: trip report-recent trips may-july
derrickman

Forum: Midlands   Posted: 10/06/2009 10:18:57   Subject: trip report-recent trips may-july
this all sounds familiar.. I was in Mouldridge, Masson and Spinney Level on 29th / 30th with ttxela... some pics on mine explorer.

Spinney level is a truly rank entrance :( with smelly mu
Topic: Charcoal as fuel for Cornish engine
derrickman

Forum: South West England   Posted: 10/06/2009 07:56:11   Subject: Charcoal as fuel for Cornish engine
[quote="carnkie"]That's very true. It was used when the blowing houses were going full blast. but Cornwall became deforestated so they used to pop off to Dartmoor Forest to find timber suitable for ch
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