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Member postings for Frank Dolman

Here is a list of all the postings Frank Dolman has made in our forums. Click on a thread name to jump to the thread.

1 2 3 4 5 6 Next > Last >>
Thread: Steel Boiler Tubes
28/02/2011 02:20:42

Damp carbon dioxide would promote rusting unless all the oxygen waspurged
out. Depending on the particular boiler, it might be simplest to dry it out by
blowing a stream of hot air through it.
Inert gas is all very well, but sealing would have to be very thorough if air was
to be kept out for a matter of months. It is a bit of a joke that argon is probably
cheaper than nitrogen when the cost of getting hold of a cylinder is taken into
account
Thread: Screwcutting Die Specification
10/02/2011 01:45:46

Did you notice, Wallace, that Tubal's diagram shows the variation from 45 deg
in the other sense from his words?
Thread: pcb guillotine
10/02/2011 01:40:39

Eye and lung protection if using David's idea of a circular saw on glass-fibre!
Thread: Case Hardening
06/02/2011 00:57:36

Crankshafts would surely be gas carburised, or carbo-nitrided. A much more
controllable process than dipping in Kasenit.
This changes the whole story, including the question of tempering. Please
Meyrick, tell me I'm right.
Thread: universal pillar tool by george h thomas
05/02/2011 01:34:05

Yes, Workshop Techniques is the right book. Hemmingway offer a kit for
adding a sensitive drill to a basic pillar tool. There is at least one casting
involved, so you may well decide that this is a good way to go. Usual
disclaimer.
Regards and good luck
05/02/2011 01:33:00

Yes, Workshop Techniques is the right book. Hemmingway offer a kit for
adding a sensitive drill to a basic pillar tool. There is at least one casting
involved, so you may well decide that this is a good way to go. Usual
disclaimer.
Regards and good luck
Thread: Surface Rusting in Workshop
27/12/2010 14:57:02

     I have pointed out in the ''dehumidifier'' thread that it is necessary to prevent
   the tools dropping below the dew point of the air.  You can reduce the dew point
   with an expensive dehumidifier or raise the temperature of the tools with a
   small heater.
      Peter Shaw is talking of a few tens of watts and a cloth.  This is sensible. 3kW
   of room heaters on the other hand is surely only for the rich.
     By the way, heating the air will not affect its dew point.
Thread: Humidistat? for Andrews De-humidifier
24/12/2010 12:42:05

     It seems to me that there is no sense in getting too concerned in accurate
 measurement of humidity.  The requirement is to keep the dew point of the air
 below the temperature of the machines and tools.  The dehumidifier has a
 limit to the maximum number of starts per hour ( usually six ) so you don't  want
 to leave it under the sole control of a humidistat, or it might kill itself.
 
     Semi-manual control could be quite simple if you fitted a timer, setting it to
 run for (say) five minutes every hour in damp weather and reducing it in dry.
Thread: Horses for Courses
11/12/2010 02:54:25

     I think 'dinghies'  Terry
Thread: lathe belt
04/12/2010 05:04:21

     Seems to me that with nothing said about price, guidance or legal
   requirement is meaningless.
Thread: Are steam engines better now in preservation than they were in ordinary service
23/10/2010 07:48:33

     Peter Shaw's grandson was right to be suspicious.  There has been a great
   deal of muddled thinking of this sort in the past.  For example it was quite
   wrong to believe, as many did, that GWR employed the Main Line Gauge
   to prevent trains falling off the rails where the track ran sideways as much
   of the GWR does.
Thread: Hit and miss engines.
22/09/2010 01:55:36

   Thank you John.  Very clear.
21/09/2010 09:40:56

     Why, please, are Hit and miss engines so called?
Thread: ME Issue 4381 - 02 July - Subscription Copy Delivery ?
02/07/2010 10:22:26

     Got it now and read of David's accident.  Did this contribute/ cause the
   delay?  Either way, sympathy and good wishes, David.
02/07/2010 02:37:17

        
Thread: Bearing Extraction
01/07/2010 11:44:08

     Unable to get puller jaws under a race, I had success with cutting one
   off with a cutting disc in a hand-held drill.  A nice neat cut down a radius
   was not possible, so I cut in an odd direction that I could "get at" so that
   I had some sort of control.  When the cut was as deep as I felt I could
   safely go, I whacked a wedge into the cut.  The race broke at the bottom
   of my cut, leaving me to lift it off between finger and thumb.
 
     Idea useless if you can't get a disc at the stuck bit of race.
 
                        Sincere wishes
Thread: Adverts on the Website
20/06/2010 12:50:38

     I don't suppose that commercial concerns are allowed to advertise on
   "our" site for free.  Why should we care who pays?  If Myhobbystore was
   able to run the website without revenue, that would be nice.  We would
   have more space and there would be none of that pesky flickering in the
   corners of our eyes.  It can't be done.  This is the real world and its nasty
   not to say vulgar, but we have to put up with it.
Thread: Joining a Society - contrasting experiences
25/05/2010 10:09:07

     I have served on the committies of a couple of Societies (not ME), both
   of which, from time to time, were accused of the sort of behaviour that
   has been described in this thread.  This post is not a counterblast, it is
   a plea for understanding, mercy and a second or even third chance.
 
     May I point out that the visitor hoping for a minimum welcome and not
   getting one, has often met only one member.  He then judges the whole
   Society on this one unfortunate encounter.  We frequently warned our
   members of this and appointed 'welcomers' who had,we felt, the very
   necessary talents for the job.  All members were advised to introduce
   visitors to a welcomer.
 
     Murphy's Law still ensured that all visitors encountered members who
   were themselves too new to know the system.
 
     I won't go on. Just please go back and try again.  Some MEs are good chaps.
Thread: Fradley Canal Crane Progress
24/05/2010 00:44:54

     It's nice.  We know that it is an accurate model because you allowed us
   to keep track of your enquiries.  I only hope that other viewers give you
   the credit that it deserves!
Thread: Castings
23/05/2010 17:46:41

     Since my last post, I have read a bit and done some sums.  Jason is
   very close, track width is just over 3.5".  Weight is nearer a tonne than a
   ton, although Tigerman seems to have used ali in some places looking
   at the photos.
1 2 3 4 5 6 Next > Last >>
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