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Posts by royfellows

Showing 3831 results below:

Author Message
Topic: Gwynfynydd Gold Mine - Access
royfellows

Forum: North Wales   Posted: 16/04/2009 20:30:18   Subject: Gwynfynydd Gold Mine - Access
I endorse what Mr Simply says, but for more info please refer to my posting on the 'other' website.
Topic: Damage in Smallcleugh
royfellows

Forum: General Chat   Posted: 15/04/2009 17:59:12   Subject: Damage in Smallcleugh
I did not want to get involved in this, however:

I was recently in a working mine watching hydraulically operated drilling rigs in action together with an automated conveyor system and unde
Topic: Coniston
royfellows

Forum: North West England   Posted: 09/04/2009 21:22:00   Subject: Coniston
Mr Jimbo's idea sounds better than mine and I go with it.

It’s also more logical as in computer directories and sub directories in the form of a tree, it’s the same in the Windows registry.
Topic: False flooring photos
royfellows

Forum: General Chat   Posted: 09/04/2009 18:21:47   Subject: False flooring photos
This is for the benefit of the less knowledgeable, to most of you it will be old hat.

Levels can be either crosscuts or drives.
A crosscut is driven through barren rock to cut a vein a
Topic: Bat Pillars / Entrances
royfellows

Forum: South West England   Posted: 07/04/2009 20:14:50   Subject: Bat Pillars / Entrances
This is how its done when its not someone elses money

Frongoch adit shaft, capped by RF/WMS 2002

[photo]Personal-Album-128-Image-32071[/photo]

EDIT
It cost me abo
Topic: Coniston
royfellows

Forum: North West England   Posted: 06/04/2009 17:37:22   Subject: Coniston
My suggestion is to re-arrange areas such as this with a main and sub name system separated by a colon. For instance "Coniston Copper Mines: Hospital Level" and "Nenthead Mines: Smallcleugh"
In t
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 06/04/2009 09:45:26   Subject: My Oldham Conversions
I have been using my lamp underground this weekend re-timbering at Frongoch.
I have to say that I am more than pleased; this lamp will run 2 Cree Q5s at 1050 mA each (AMC 7135 drivers) so must be
Topic: Prototype StenLight waterproof battery
royfellows

Forum: Lamps & Lighting   Posted: 01/04/2009 18:32:02   Subject: Prototype StenLight waterproof battery
Ha!
This has started Roy athinking
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 01/04/2009 18:30:37   Subject: My Oldham Conversions
Beware the Oldham switch as well, use a little Vaseline or similar. One of my tests discovered a ridiculous 1.4 ohms at the switch, twiddling it caused the meter to drop to zero. When I used Oldhams '
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 31/03/2009 19:50:22   Subject: My Oldham Conversions
[quote="royfellows"]I will think about this one.

I have some results on testing etc.
The 2 parallel Li Ion power packs will not support 4 Crees, I now have them on direct drive and the
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 31/03/2009 19:30:36   Subject: My Oldham Conversions
Hi Mr Morlock
This is an absolutely superb job and does you great credit.
How long did it take you to make?
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 27/03/2009 20:44:18   Subject: My Oldham Conversions
Hi Mr Morlock, nice to hear from you again.

I would say that its basically the same as for any other high power LED such as Q5, and in that, its rather arbitrary as nothing appears to be en
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 27/03/2009 19:40:10   Subject: My Oldham Conversions
<<<< He's back!!!
Topic: Longrake in the 1980s
royfellows

Forum: Midlands   Posted: 27/03/2009 09:03:43   Subject: Longrake in the 1980s
Nice photographs Martin, well done.
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 26/03/2009 12:11:53   Subject: My Oldham Conversions
I have found where my avatar was hiding, he was in a back up disk hoping that he would not be noticed. My new lamp had frightened him away.
I shall try to coax him into wearing this and coming ba
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 26/03/2009 06:45:53   Subject: My Oldham Conversions
I will think about this one.

I have some results on testing etc.
The 2 parallel Li Ion power packs will not support 4 Crees, I now have them on direct drive and they only run at half p
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 24/03/2009 18:21:05   Subject: My Oldham Conversions
Again for the benefit of those who do not use the 'other' site.

I have had the big one up and running and been underground with it; however I have problems with the electronics in as much a
Topic: Britain's Best Drives - Wye Valley/ F.O.D
royfellows

Forum: South West England   Posted: 23/03/2009 22:21:10   Subject: Britain's Best Drives - Wye Valley/ F.O.D
Nice wheels.
Don’t get me going on cars though.
Many years ago I was full of enthusiasm but short on bread and bought a Sunbeam Talbot 90, this has an engine just over 2 litre and was the sa
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 16/03/2009 08:59:47   Subject: My Oldham Conversions
I have never seen one of these.

As a heatsink I am sorry to say it would be useless as there has to be direct contact all the way from the LED mounting to whatever you hope will disipate th
Topic: Tesco torch Question??
royfellows

Forum: North West England   Posted: 13/03/2009 10:19:47   Subject: Tesco torch Question??
I owe you an apology as well Mr Knocker, I saw "AA" in original post and missed the "C" in yours!
My Tesco torches are the small AA size.
Topic: Tesco torch Question??
royfellows

Forum: North West England   Posted: 12/03/2009 19:59:55   Subject: Tesco torch Question??
[quote="Knocker"]I would say wihout a doubt over 100 lumens. I had a Cree Q5 on max power earlier and the Tesco C was outshining it, so that has to be in the region of 200lumens[/quote]

Sor
Topic: Old Gang
royfellows

Forum: North East England   Posted: 11/03/2009 21:09:18   Subject: Old Gang
I have just seen this and am not an expert at all on this area, however;
spoil with timbers protruding can in my experience indicate either of 2 things

1 They are the remaining upright
Topic: My Oldham Conversions
royfellows

Forum: Lamps & Lighting   Posted: 10/03/2009 18:42:42   Subject: My Oldham Conversions
I have just completed the dedicated charger designed to take 2 of the Li Ion power packs. The central red light indicates mains power, the others above each charge socket are red indicating on charge,
Topic: New event added 'Bwlchglas Lead Mine SRT Trip' on 16/05/2009 at 10:00
royfellows

Forum: Events   Posted: 09/03/2009 10:13:09   Subject: New event added 'Bwlchglas Lead Mine SRT Trip' on 16/05/2009 at 10:00
Advise
The deep adit itself is explorable in full wet gear to the point where it is blocked by a fall from the stope above.
At this point there is a winze with a very attractive kibble and o
Topic: Build Your Own Beam Engine for £12.50p
royfellows

Forum: General Chat   Posted: 27/02/2009 20:45:47   Subject: Build Your Own Beam Engine for £12.50p
[quote="PeteHall"][quote="royfellows"]
I have some serious fantasies about nurses, but its a family website.
Just changed my brand of lager, maybe some side effects.[/quote]

A fri
Topic: Build Your Own Beam Engine for £12.50p
royfellows

Forum: General Chat   Posted: 27/02/2009 19:25:49   Subject: Build Your Own Beam Engine for £12.50p
[quote="Gwyn"]Far from it for me to comment on the medical regime that various members are subject to, although, I do notice that one considers that the nurses are stealing his clothes! ;)
[/qu
Topic: Herodsfoot Shaft (photo)
royfellows

Forum: South West England   Posted: 25/02/2009 18:59:51   Subject: Herodsfoot Shaft (photo)
[quote="ferret"]
stone linned too so should be fairly stable![/quote]

I would counsel some caution here in that sometimes the stone ginging is supported on timbers that are in turn sup
Topic: Frongoch: Please keep out for now
royfellows

Forum: Mid Wales   Posted: 23/02/2009 16:27:58   Subject: Frongoch: Please keep out for now
I am currently doing some serious re-timbering in the Frongoch adit. The situation is far worse than I though and I would respectfully ask people to stay out for time being.
I dont believe that t
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 20/02/2009 17:58:44   Subject: Power of Beam Engines
In my first post:
"Without referencing any written work I would tend to suggest that actual horsepower is an arbitrary value."

Further
I don’t think anyone owes anyone an apology,
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 20/02/2009 15:03:48   Subject: Power of Beam Engines
[quote="Morlock"]Thanks Roy.
As you may gather I have a firm belief that the vacuum provides a considerable portion of the power in low pressure engines (40 PSI and lower).
This belief is ba
Topic: Should I just give up mine exploring?!?
royfellows

Forum: General Chat   Posted: 20/02/2009 12:09:23   Subject: Should I just give up mine exploring?!?
Hi Mr Skippy
So no. The next time up will be Easter.
Busy diggin in Wales this weekend.
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 20/02/2009 11:34:19   Subject: Power of Beam Engines
Gentlemen, as this discussion appears to be turning back towards the purpose of the condenser etc, I hope that you will both forgive me for this posting. The reason for this is that I feel that in my
Topic: Horse gins
royfellows

Forum: General Chat   Posted: 19/02/2009 20:21:02   Subject: Horse gins
Mr JR? (didnt you get shot a few years ago on TV?)

Joking aside, I have just learned something I didn't know, many thanks for that.
Topic: Should I just give up mine exploring?!?
royfellows

Forum: General Chat   Posted: 19/02/2009 20:04:09   Subject: Should I just give up mine exploring?!?
[quote="Peter Burgess"]Indeed, "as you were", please. One of the things I really like about this website is the real lack of political debate (otherwise known as pointless argument). In that respect i
Topic: Horse gins
royfellows

Forum: General Chat   Posted: 19/02/2009 19:36:38   Subject: Horse gins
Everyone knows what the one looks like, so here is the other

[photo]Alltycrib-Mixed-Mine-User-Album-Image-30158[/photo]
Topic: Should I just give up mine exploring?!?
royfellows

Forum: General Chat   Posted: 19/02/2009 19:12:25   Subject: Should I just give up mine exploring?!?
I wont bring politics into this site but whtever they do we still have elections, which gives up a voice and them something to worry about.
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 20:58:12   Subject: Power of Beam Engines
Gentlemen, I have enjoyed your company and the lively discussion, but I am now shutting down for the evening.

EDIT
Final thought before I shut down. We are never all going to agree on
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 20:52:29   Subject: Power of Beam Engines
I cant get this quote to work for some reason.

I was going to quote Mr Spitfires last but one.

If the condenser isn't really doing anything, then why did those marvellous enginee
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 20:48:54   Subject: Power of Beam Engines
I cant get this quote to work for some reason.

I was going to quote Mr Spitfires last but one.

If the condenser isn't really doing anything, then why did those marvellous enginee
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 20:26:38   Subject: Power of Beam Engines
I know nothing about steam locos, so please advise. I understand that there is a cylinder each side of the loco.
Are they acting together or alternately?
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 19:27:57   Subject: Power of Beam Engines
[quote="spitfire"]I can't see what you're driving at there, of course there has to be a point where steam is shut off that applies to any steam engine!
Also Mr Morloc states in a previous post th
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 18:17:40   Subject: Power of Beam Engines
Thinking about this a little further, let us for the sake of argument take the equilibrium valve, condenser, and whole shooting match out of the equation, and see what would happen.
There has to
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 17/02/2009 17:40:27   Subject: Power of Beam Engines
I am following this with interest.
Mr Spitfire, I don’t understand what you mean by "the condenser must be ignored" What I am postulating is that the vacuum created below the piston must offer so
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 16/02/2009 22:20:15   Subject: Power of Beam Engines
This looks really good.
In effect, Boulton and Watt manages to produce an engine where the 'spent' steam was put to very good use, both automating the sequence of events relative to the operation
Topic: What is it?
royfellows

Forum: North East England   Posted: 16/02/2009 22:02:54   Subject: What is it?
[quote="Bob Pit"]Is there any WW11 activity recorded in the area? The emplacement for a 40mm mobile Bofors AA looks very similar, ie a slightly domed circular plateau surrounded by a wall of sandbags,
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 16/02/2009 21:55:33   Subject: Power of Beam Engines
Just tried it, still NG
OK why not upload the image to aditnow?
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 16/02/2009 21:37:16   Subject: Power of Beam Engines
[quote="Morlock"]

How do I get the image to work?[/quote]

I have pasted your URL into the address bar of my browser and got a photobucket error message

"Image moved or
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 16/02/2009 21:28:46   Subject: Power of Beam Engines
Sorry Mr Morlock, cannot view your image.

EDIT
I see your edit, do I take it that we are in agreement?
Topic: Power of Beam Engines
royfellows

Forum: General Chat   Posted: 16/02/2009 21:22:49   Subject: Power of Beam Engines
After "the dumping of the steam below the piston" the exhaust valve would open which connected the space below the piston to the condensor. The steam below the piston would therfore condense forming a
Topic: Wheal Sterran Tin Mine - Cornwall (photos)
royfellows

Forum: South West England   Posted: 16/02/2009 17:04:13   Subject: Wheal Sterran Tin Mine - Cornwall (photos)
[quote="stuey"]My point was that there is a slide and the working aggies side are shallow and the other ones deeper. The adit roy dug goes to stoping..... the other side goes to a big shaft with a lev
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