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Posts by derrickman

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Author Message
Topic: First Fatality of 2011
derrickman

Forum: Lamps & Lighting   Posted: 26/01/2011 14:14:34   Subject: First Fatality of 2011
always unwelcome news.

which contractor is actually doing the work?
Topic: 1950s hard rock mining film
derrickman

Forum: Mining Methods & Techniques   Posted: 24/01/2011 14:34:36   Subject: 1950s hard rock mining film
I don't know about introduction of slushers, compressed air winches were certainly in use in Cornwall by the 1890s. The miners of the day would have been familiar with them from working in South Afric
Topic: Overalls, p.p.e and shin pads ....
derrickman

Forum: General Chat   Posted: 24/01/2011 11:30:53   Subject: Overalls, p.p.e and shin pads ....
how do you define the difference?

I would take 'furry' ( in this context ) as meaning a synthetic fleece material with a raised pile on one side, like those trapper caps everyone is wearin
Topic: 1950s hard rock mining film
derrickman

Forum: Mining Methods & Techniques   Posted: 23/01/2011 20:39:31   Subject: 1950s hard rock mining film
[quote="scooptram"]nice bit of film loved the old slusher loader think holmans had a play around with something like that ,didnt work that well as for the slusher its self we still use them for cleari
Topic: Overalls, p.p.e and shin pads ....
derrickman

Forum: General Chat   Posted: 23/01/2011 20:00:16   Subject: Overalls, p.p.e and shin pads ....
last time I did a wet cave - ttxela's famous "slightly damp" Spinney Level - I wore lightweight thermal underwear from Arco, flannel shirt and a light, cheap fleece top, cotton overalls and a cheap wa
Topic: photographs and overalls
derrickman

Forum: General Chat   Posted: 23/01/2011 14:40:26   Subject: photographs and overalls
as ttxela has recently pointed out, my reflective overalls don't photograph very well.

I notice one of the banner photos features a quite close shot of two sets of these... how was this do
Topic: Dolcoath and C&M Powder Co.Ltd
derrickman

Forum: Mine Tramways and Railways   Posted: 22/01/2011 20:20:06   Subject: Dolcoath and C&M Powder Co.Ltd
http://www.irsociety.co.uk/Archives/62/Letters%2062.htm
Topic: Overalls, p.p.e and shin pads ....
derrickman

Forum: General Chat   Posted: 22/01/2011 17:00:20   Subject: Overalls, p.p.e and shin pads ....
The spats you refer to are plain uncomfortable, no real used in caves and downright dangerous for ladder or srt work. They are ok if you wear them all the time but no-one wears them for fun.

Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 21/01/2011 07:17:07   Subject: New potash mine in the UK?
I would agree, I find it very difficult to believe that there is a viable market for two indepently operated underground potash mines in the UK.
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 20/01/2011 22:43:05   Subject: New potash mine in the UK?
the Selby shafts had about forty boreholes apiece, each one with a full-length sealed casing. The chilled brine was pumped down an inner string and back up the annulus to the return tanks for re-use.
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 20/01/2011 20:04:54   Subject: New potash mine in the UK?
hitting water in the sandstone isn't a problem, in the sense that it has been done many times before. The Selby shafts were sunk through it, as was the Boulby one. The water in the sandstone was froze
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 20/01/2011 19:27:29   Subject: New potash mine in the UK?
I've never really looked into the subject but I would tend to assume that some sort of hydraulic backfilling would be part of the process.

Modern drilling techniques mean that guided horizo
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 20/01/2011 08:43:17   Subject: New potash mine in the UK?
I remember seeing some of those at Seal Sands some years ago, part of the AMOCO CATS pipeline project if memory serves.

There is a further working area at Easington on the North side of the
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 19/01/2011 22:41:55   Subject: New potash mine in the UK?
solution mining is an interesting concept.
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 19/01/2011 22:07:48   Subject: New potash mine in the UK?
I don't believe that CPL's owners would have any serious incentive for that sort of investment when they have open-cut interests overseas. Remember that the sinking of the shaft and intial development
Topic: New potash mine in the UK?
derrickman

Forum: North East England   Posted: 19/01/2011 10:44:31   Subject: New potash mine in the UK?
I don't think anyone need lose any sleep fretting about the danger to the National Park from mining activities around the Whitby - Scarborough area in any foreseeable future.
Topic: Electon ladder - strength
derrickman

Forum: SRT Equipment & Training   Posted: 15/01/2011 10:15:11   Subject: Electon ladder - strength
is it a full-strength cavers' mars bar tasting of carbide and cave water?

some older electron ladders consist of swaged-on blocks between rungs, later ones consist of pins through the wire
Topic: Pelicase for DSLR
derrickman

Forum: Underground Photography & Video   Posted: 15/01/2011 10:05:07   Subject: Pelicase for DSLR
everything gets abused offshore! It's quite common for stuff to be stacked on pallets and left under a tarpaulin for days or weeks, or containerised and shipped for two or three weeks at a time.
Topic: Pelicase for DSLR
derrickman

Forum: Underground Photography & Video   Posted: 15/01/2011 00:24:02   Subject: Pelicase for DSLR
interesting comment on warping them. Most of the ones I see have been lashed onto a pallet or stacked in a container and left there in West Africa, Finland and anywhere else you can think of at some p
Topic: Polberro Brea
derrickman

Forum: South West England   Posted: 14/01/2011 11:39:42   Subject: Polberro Brea
this would be a reference to Whear Tin? My first digs in Camborne were in Fore Street, one of several houses around there owned by Peter Whear and let to students.

My recollection is that t
Topic: Pelicase for DSLR
derrickman

Forum: Underground Photography & Video   Posted: 13/01/2011 19:32:18   Subject: Pelicase for DSLR
my experience of pelicases over the years, mainly for shipping and storing survey equipment offshore, is that they are very strong and ideal for secure packing of equipment for handling, and weather r
Topic: Crofty South Copper Mine
derrickman

Forum: South West England   Posted: 13/01/2011 06:32:31   Subject: Crofty South Copper Mine
oh I know that one.. then again, seeing any given soap opera on tv and asking which one is the murderer and which one has a child by a third member of the cast, not generally realised by the other cha
Topic: Irthlingborough (Ebbw Vale) Iron Mine
derrickman

Forum: Midlands   Posted: 12/01/2011 19:20:26   Subject: Irthlingborough (Ebbw Vale) Iron Mine
any day would suit me on current plans and my travelling is only about 20 miles
Topic: Mining in Greenland
derrickman

Forum: Europe   Posted: 12/01/2011 07:45:38   Subject: Mining in Greenland
I was surprised and disappointed by the general failure of Cornish miners to come through into the oil industry in the 80s. There were a lot of opportunities there, and you'd think that with the numbe
Topic: German Bunkers.
derrickman

Forum: Europe   Posted: 11/01/2011 21:33:13   Subject: German Bunkers.
that's my impression also. I've never known the subject to be raised by anyone over 50.

When I was at school, I did 1 x 40-minute periods a week on that curious hippogriff, the British Con
Topic: German Bunkers.
derrickman

Forum: Europe   Posted: 11/01/2011 15:40:07   Subject: German Bunkers.
I spent most the spring, summer and autumn working in Germany, Finland and Russia and it was an interesting experience.


The Dutch are quite anti-German when it slips out, from experie
Topic: Mining in Greenland
derrickman

Forum: Europe   Posted: 11/01/2011 11:53:35   Subject: Mining in Greenland
[quote="Mr Mike"]Makes me want to change jobs![/quote]

why? Don't go down t' mine, Da', there's plenty of coal in the shed... mining is a hard dollar, always was, always will be. It's not a
Topic: Premier carbide (acetylene) lamp
derrickman

Forum: Lamps & Lighting   Posted: 10/01/2011 15:27:22   Subject: Premier carbide (acetylene) lamp
[quote="davel"][quote="Morlock"] If the rubber washer is a bit leaky the results are entertaining. ;D [/quote]
Ah yes, I had forgotten about that.

Dave[/quote]

also check th
Topic: Premier carbide (acetylene) lamp
derrickman

Forum: Lamps & Lighting   Posted: 10/01/2011 14:40:40   Subject: Premier carbide (acetylene) lamp
no, many of the fibre helmets were manufactured with clip fittings. There is no actual fitting for the loop on the lamp, simply a hole punched or moulded in the upper-forward part of the crown plate.
Topic: Premier carbide (acetylene) lamp
derrickman

Forum: Lamps & Lighting   Posted: 10/01/2011 11:08:12   Subject: Premier carbide (acetylene) lamp
I have two of these lamps and they both have blades. One was bought new by me in 1970 or 1971, the other came from Wheal Geevor and had been out-of-use for several years when I acquired it in about 19
Topic: Mine site preparation and related construction activities, construction contractors
derrickman

Forum: General Chat   Posted: 09/01/2011 16:30:44   Subject: Mine site preparation and related construction activities, construction contractors
I can't see any logical reason for making a range of posts of that sort, if it isn't some sort of scam. The similarity of the wording suggests that it's a spambot.

A lot of Chinese compani
Topic: Mine site preparation and related construction activities, construction contractors
derrickman

Forum: General Chat   Posted: 09/01/2011 16:08:41   Subject: Mine site preparation and related construction activities, construction contractors
ok, understood. What is this, a data mining scam of some sort? :ban:
Topic: Mine site preparation and related construction activities, construction contractors
derrickman

Forum: General Chat   Posted: 09/01/2011 13:46:52   Subject: Mine site preparation and related construction activities, construction contractors
I'm afraid that most of the information and opinion you'll find on here on that subject, is from highly experienced people who have given it up as a bad job!

there has been no new mine deve
Topic: New event added 'Nent Christmas Explore!' on 28th and 29th December 2010
derrickman

Forum: Events   Posted: 05/01/2011 19:07:10   Subject: New event added 'Nent Christmas Explore!' on 28th and 29th December 2010
[quote="RJV"][quote="Redwinch"][quote="christwigg"]So all the beloved Landrovers are broken [/quote]

Not quite all !!!!!! ;D [/quote]

Yet!!!! :devil: [/quote]


Topic: NAMHO 2011
derrickman

Forum: Midlands   Posted: 05/01/2011 13:12:08   Subject: NAMHO 2011
link doesn't work
Topic: Hendre Ddu Cwm Pennant- new road
derrickman

Forum: North Wales   Posted: 03/01/2011 22:01:57   Subject: Hendre Ddu Cwm Pennant- new road
or could that be.. hope the local quarrymen and drivers are getting some work?

what's the difference between last year's mining remains and 100-year-old ones?
Topic: Odin mine
derrickman

Forum: Midlands   Posted: 31/12/2010 16:23:29   Subject: Odin mine
I fancy going underground in the New Year while I'm home, sod the SRT though. Stabbed myself through the hand trying to get my crampon into the prussik loop in the early 70s, dangerous bloody stuff :P
Topic: Odin mine
derrickman

Forum: Midlands   Posted: 30/12/2010 20:41:43   Subject: Odin mine
I went to Windy Knoll with a school trip in the late 1960s, picked up a sample of elaterite which I still have!

I have it in mind that there was a lower entrance in the early 1970s when I w
Topic: Irthlingborough (Ebbw Vale) Iron Mine
derrickman

Forum: Midlands   Posted: 30/12/2010 00:36:11   Subject: Irthlingborough (Ebbw Vale) Iron Mine
well, I'm home now with time free. Saw ttxela today and he was interested.. what' s the latest on this?
Topic: Odin mine
derrickman

Forum: Midlands   Posted: 30/12/2010 00:34:54   Subject: Odin mine
what is the current status of Odin mine? I see some pics but they date from the 1980s
Topic: White Miner
derrickman

Forum: North West England   Posted: 30/12/2010 00:32:29   Subject: White Miner
what about fullers earth?
Topic: What the heck is this? (photo)
derrickman

Forum: South West England   Posted: 29/12/2010 01:13:54   Subject: What the heck is this? (photo)
[quote="Morlock"]Certainly does.

[link]Harnisha-Burn-Lead-mine-User-Album-Image-019[linkphoto]Harnisha-Burn-Lead-mine-User-Album-Image-019[/linkphoto][/link][/quote]

this one is
Topic: White Miner
derrickman

Forum: North West England   Posted: 26/12/2010 11:38:05   Subject: White Miner
this was ( briefly ) my job title, in South Africa in the late 70s.. or more correctly 'Assistant White Miner'. It may be that the deceased was so described, although it sounds a little early for that
Topic: Merry Christmas everyone
derrickman

Forum: General Chat   Posted: 25/12/2010 08:41:17   Subject: Merry Christmas everyone
just had a short and entirely non-PC midnight mass in the foc'sle chain locker with half-a-dozen Catholic Filipino stewards and ABs, a Polish bosun who sang a quite remarkable unaccompanied Ave Maria
Topic: Lamplight trip - need a lamp!
derrickman

Forum: Lamps & Lighting   Posted: 25/12/2010 05:50:59   Subject: Lamplight trip - need a lamp!
I could fancy giving the old Premier an airing without inviting ttxela's disapproval.. but not enough to drive to N Wales in Jan ............
Topic: Irthlingborough (Ebbw Vale) Iron Mine
derrickman

Forum: Midlands   Posted: 20/12/2010 18:35:24   Subject: Irthlingborough (Ebbw Vale) Iron Mine
feb could be good for me too
Topic: Modelling in mining
derrickman

Forum: General Chat   Posted: 19/12/2010 20:34:49   Subject: Modelling in mining
mine railways are a well-established niche-of-a-niche in the narrow gauge railway modelling field, this is a favourite of mine http://www.trainweb.org/nzgr/Gn15/Gn15.html

try the gnatterbox
Topic: Surveying, the mining dial.
derrickman

Forum: Exploration Chat   Posted: 19/12/2010 20:19:53   Subject: Surveying, the mining dial.
I have one, but it's not usable
Topic: Irthlingborough (Ebbw Vale) Iron Mine
derrickman

Forum: Midlands   Posted: 13/12/2010 19:33:43   Subject: Irthlingborough (Ebbw Vale) Iron Mine
I'd be most interested in an underground trip in the Northants area, I dare say ttxela would as well
Topic: California crossings
derrickman

Forum: Exploration Chat   Posted: 13/12/2010 19:29:01   Subject: California crossings
my experience of them was in the 80s working on tbm tunnelling in London. They were sectional crossings attached to the last sledge of the tbm train by drag ropes ( wire bonds that is ) about 50m long
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