Near where I live there are a series of longish 1 in 50 grades, and recent summers have seen some fairly big fires. The railway company has denied...
25131
Stuart Kean
kean@...
Sep 1, 2002 12:19 pm
... From: Ralph Reese [SMTP:ralphreese@...] Sent: Sunday, 1 September 2002 8:16 To: steam_tech@yahoogroups.com Subject: Re: [steam_tech] Forest Fires...
25132
Andreas Schwander
schwander@...
Sep 1, 2002 4:10 pm
In the Grisons in Switzerland (the area with the mountain resorts Davos, Klosters or St. Moritz) local Raetian Railway now uses its coal fiered steamers only...
25133
Colin Rainsbury
colinrlynbarn
Sep 2, 2002 6:52 pm
Hi all anyone in Britian this weekend can see a Heywood valved gear locomotive working at the Leighton Buzzard railway 740 or the Materan 0-6-0T locomotive...
25134
George William (Bill)...
gwnewport
Sep 2, 2002 8:29 pm
I got some pix that I took when it was on its way back. G ... From: pyewackett To: steam_tech@yahoogroups.com Sent: Tuesday, August 27, 2002 3:22 AM Subject:...
25135
ian bull
granoflug
Sep 2, 2002 8:38 pm
Colin et al. Sorry to split hairs but this loco has Walschaerts VG. Its articulated driving axles are on the lines of Heywoods pattern. All the best Ian B...
25136
Ian Thomson
ithomson@...
Sep 2, 2002 8:54 pm
A 6'7" 4-4-0 seems just what is needed on steeply graded branch line. ... I got some pix that I took when it was on its way back. G ... From: pyewackett To:...
25137
Matthew J Brown
morven
Sep 3, 2002 1:03 pm
... Since few preserved locos are worked at anywhere near their capabilities anyway, I'm not sure it matters. -Matt...
25138
Keith Messent
rkmessent
Sep 3, 2002 2:16 pm
For those who have not already discovered this Magazine and the series "The Experimental Spirit", may I recommend same as an absolute MUST for steam_tech...
25139
Arno Martens
snetram@...
Sep 3, 2002 3:58 pm
Tue, 3 Sep 2002 15:14:25 +0100, "Keith Messent" <rkmessent@...>, ... [snip] ... Keith, some of us have spread our hobby budgets very thin and others...
25140
Keith Messent
rkmessent
Sep 3, 2002 5:16 pm
Arno, and listers, I well know the problem! I would have posted the whole article, but the copyright laws forbid! Such a pity! In due course of time many of...
25141
Colin Rainsbury
colinrlynbarn
Sep 3, 2002 6:34 pm
I bough to you better knowledge on these locomotive Ian Colin Rainsbury ... From: "ian bull" <ianbull@...> To: <steam_tech@yahoogroups.com> Sent:...
25142
Ian Thomson
ithomson@...
Sep 3, 2002 7:02 pm
Keith: Good afternoon. Thans for the info.. I have already ordered a copy (from my favorite Ian Allan bookshop where the sales agent who deals with my account...
25143
BREWSTER
bruce_saund
Sep 4, 2002 12:30 am
Gents, Could anyone tell me the origins and dates for the introduction of Allan straight link valve gear? What were its advantages and disadvantages and why...
25144
BREWSTER
bruce_saund
Sep 4, 2002 12:33 am
Gents, It would appear that British builders began building locos about 1880 with fluted Con Rods and Coupling Rods. Who invented them? Who first began to use...
25145
Arno Martens
snetram@...
Sep 4, 2002 2:23 am
... 1854 ... Trick supposedly developed it just before Allan. This was the most used valve gear on Prussian RR's in the 1880's +. It was mostly surpassed by...
25146
ian bull
granoflug
Sep 4, 2002 2:49 am
... No knowlege at all. Just looking at photos' etc! More importantly. Congratulations on getting the Lynton & Barnstaple going again. A line with a great...
25147
ithomson@...
Sep 4, 2002 2:52 am
Bruce: Good evening. They were meant to be stronger, i.e. less likely to buckle. But regular rods were used at least until around 1905. The South Eastern Ds...
25148
wallybar2000
Sep 4, 2002 8:02 am
I believe that one claimed advantage for the Allan Gear is that it occupies less space as both the radius rod and link move when altering the cut off. Walter...
25149
Stuart Kean
kean@...
Sep 4, 2002 12:11 pm
Bruce, My understanding is that their main advantage was the straight, as opposed to curved, expansion link & the fact that they do not need so much head room,...
25150
Stuart Kean
kean@...
Sep 4, 2002 12:11 pm
Bruce, For a given mass, a square rod is stronger than a fluted one. But the extra extra strength is not proportional, so the strength lost from the material...
25151
Peter Brown
hackenpuss
Sep 4, 2002 12:52 pm
Bruce, unsure of the origins or introduction of Allen v.g. but as Walter mentioned it has the space saving feature of both link and die block movement to...
25152
Ian Thomson
ithomson@...
Sep 4, 2002 1:13 pm
Stuart: Good morning. I would have thought that just about the last thing you want from a coupling or connecting rod would be flexibility. Regards. Ian. ... ...
25153
David Flecker
d_flecker
Sep 4, 2002 1:15 pm
Stuart, is that to say that a fluted rod is stiffer for a given weight than a square section, given that it is rather important for connecting rods not to bend...
25154
Stuart Kean
kean@...
Sep 4, 2002 1:23 pm
Ian, Before I go to bed. You need a little flexibilty. All these things would be a compromise, but a little flexibility would prevent failure if for instance...
25155
JJG Koopmans
Jos.Koopmans@...
Sep 4, 2002 2:38 pm
Hi, The grooves on the Greek colums are called cannelures which is a Latin word. In french it is also used for the grooves in guns and rocks from glaciers. So...
25156
Keith Messent
rkmessent
Sep 4, 2002 3:27 pm
The Ffestiniog Rly's George England Locomotives, e.g. "Prince" and "Palmerston" are fitted with Allan v.g. Alexander Allan was employed by Robert Stephenson &...
25157
wallybar2000
Sep 4, 2002 3:30 pm
As late as 1924 the GWR built a class of pannier tank locos with Allan Straight Link Valve Gear. These 0-6-0T's were based on a much earlier Cornwall Mineral...
25158
Pip Davey
wakedean
Sep 4, 2002 6:12 pm
I would have thought they evolved as stronger steel alloys were discovered. ... From: "Stuart Kean" <kean@...> To: <steam_tech@yahoogroups.com> Sent:...
25159
Arno Martens
snetram@...
Sep 4, 2002 6:59 pm
Wed, 4 Sep 2002 16:35:40 +0200, "JJG Koopmans" <Jos.Koopmans@...>, ... My guestimate, it's from the slenderly tapered musical instrument. Arno...
