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Post by Deleted on Jan 28, 2019 14:29:58 GMT
Hi Alan You may recall that we spoke about this before, well I had forgotten but in checking my build thread I see the drawing you posted when we discussed this. The 'Bear' is different to 4472 but I can say that I did the bending when cold for both the man frames and trailing frames. The mains were done in a vice at home, some details and picture on page 56 of my thread. Sometimes I do wonder how the hell I managed some things as the bend involved two 1/8 frames riveted together. IIRC I had left the rivets off the side to be clamped, this for two reasons, first to be able to hold the frame in the vice and two, in case the holes moved during bending, again IIRC there was very little if any sign of the holes moving and they were duly riveted together after. The trailing frames which are probably closer to what the front end of the 'Bear' is, I did at an engineering unit next door to my son's, they had a press rated for 25 tons which formed the joggle without any issues. The frames had been made overlength to allow for said joggle. Hope this is of some help Alan? sometimes I look back on what I have done on 4472 and think...'God that was lucky'.... Pete
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Post by delaplume on Jan 28, 2019 15:11:18 GMT
Hi Pete,
Yes, in my recent mental meanderings I'd forgotten about our discussions..............
.Meanwhile I've just re-discovered some embryo frame steel that I had earmarked for The Bear's mainframes many years ago.....but didn't use as Maidstone Engineering provided some water jet cut ones instead........I'll do some experimenting over the next week or so and see what transpires...
Thanks matey
Alan.
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Post by delaplume on Feb 1, 2019 1:08:01 GMT
FEBRUARY 1ST, 2019.... OK, nothing new by way of building etc at the moment---- other jobs taking priority ( Lathe repairs---- Simplex wheels------ Diesel shunter re-spray )... I'll have a go at some trial chassis bending towards the end of this month..........The loco bogie is also ready for re-building so that could be done over a week-end maybe.... Meanwhile I'm always on the look-out for "new" photos.......I'm including any of the 8-Wheeled tender attached to other locos after The Bear was re-built......and also any of GWR Castle Class 4-6-0 No.111 Viscount Churchill.....NB}-- these can be full size OR models, I don't mind which.. For interest I've included this old photo of the GWR Signal Works at Reading, Berks....... The mechanical semaphore signalling system was well established before The Bear came into service and there are still some in active use today on 21st Century GWR.... I think this is at the Nat. Railway Museum, York }-----------
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Post by delaplume on Feb 4, 2019 1:05:04 GMT
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Post by delaplume on Feb 4, 2019 1:26:06 GMT
An early artists view showing}---steps in front of cylinders.....fully lined livery........Brass capped chimney,......no top feed,......Company plaque on centre splasher, ....... "Long" cab roof..
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Post by delaplume on Feb 4, 2019 1:33:18 GMT
Just found this in my ods 'n sods-------------For those of you who haven't been in a Railway workshop here is a wheelset set between centres ----------------------> --------->
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Post by delaplume on Feb 4, 2019 1:37:03 GMT
and here are a 5" Set for Simplex in my Chester Craftsman lathe--------->
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Post by delaplume on Feb 5, 2019 19:36:38 GMT
When The Bear was finally withdrawn from service in January 1924 by the then CME Mr.C.B.Collet, it was re-built as a "Castle" class loco using a few of the original parts........It kept the No.111 but was named "Viscount Churchill" in honour of the longest serving Chairman of the GWR... Here is my 4mm loco No.111 Viscount Churchill.............It's actually an Airfix Castle which has the correct type of mainframes shown at the front of the Smokebox............The etched plates are by Kings Cross bought via E-Bay and fitted by the good people at Pendon Museum}----- pendonmuseum.com/ ------ where my Brother-in-Law is a volunteer....
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Post by David on Feb 6, 2019 4:34:56 GMT
Looking at that photo of your lathe above it seems you're missing a piece of rack on the removable part of the bed in the gap.
Mine is missing that same piece and it means I can't get very close to the spindle with the carriage, eg when using collets.
This is a very common type of lathe - are they all missing the rack there?
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Post by delaplume on Feb 7, 2019 11:09:27 GMT
Looking at that photo of your lathe above it seems you're missing a piece of rack on the removable part of the bed in the gap. Mine is missing that same piece and it means I can't get very close to the spindle with the carriage, eg when using collets. This is a very common type of lathe - are they all missing the rack there? Hello David, It all depends where your main carriage handwheel is located..............Looking at the Apron you'll note that mine is on the far R/H side ie}--- Furthest away from the Headstock.... And as the connecting cog between it and the rack is therefore also in a similar position I can get my toolpost to actually touch the collet...... However if your main carriage handwheel is on the far L/H side of the Apron then your carriage can only come up to the end of the rack because of the connecting cog being closest to the Headstock .... At one time my type was known as the "English" lathe and the other as the "American" lathe ----- but that was from my Apprentice notes from the 1960's and probably not used to-day.... Please note that the 5c collet is posed for the photo----I've yet to make the collet closer whilst the dedicated drawbar is on it's way from the USA at the moment..
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uuu
Elder Statesman
your message here...
Posts: 2,807
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Post by uuu on Feb 7, 2019 18:32:23 GMT
With the English pattern, you can operate the handwheel with your hand clear of the shower of swarf, but get hit when you engage/disengage the feed. With the American pattern you can operate the feed whilst clear of danger. Perhaps Americans used the feed more often, but the English preferred to cut manually.
Wilf
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Post by delaplume on Feb 7, 2019 19:38:57 GMT
With the English pattern, you can operate the handwheel with your hand clear of the shower of swarf, but get hit when you engage/disengage the feed. With the American pattern you can operate the feed whilst clear of danger. Perhaps Americans used the feed more often, but the English preferred to cut manually. Wilf Very true regarding the hot swarf !! Look what just turned up from the USA E-Bay}-----------
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Post by David on Feb 7, 2019 21:20:04 GMT
I've heard of them referred to as English/American too so that is still current.
Mine is like yours and I hadn't considered the location of the gear engaging with the rack being at the rear of the apron. I'll have another look at mine but I know I've fallen off the rack before and it wasn't easy getting back on.
Have fun with your collets! I went looking for a 4mm one the other day and found all of mine are imperial.
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Post by delaplume on Feb 8, 2019 0:06:37 GMT
Have just copied these from}---"A beginners guide to the GWR".....I'm not sure just what the "Approx. mileage" refers to}-------
List of GWR water troughs}----
Location Approx. mileage Operational date Pangbourne/Goring & Streatley 43.5 1 October 1895 Aldermaston/Midgham 45.5 1904 Fairwood Junction 111.5 (down), 111.75 (up) Cogload Junction (Creech Junction) 159.25 March 1902 Exminster/Starcross 200 July 1904 Keynsham/Fox's Wood 114.75 30 June 1899 (some sources say 1 October 1895) Chipping Sodbury 104 1 January 1903 Undy Crossing/Magor 150.25 Ferryside 240.75 Denham/Ruslip 2.24 20 November 1905 Kings Sutton Junction (Aynho) 81.5 Rowington Junction ('Kingswood') 114.5 July 1902 Charlbury/Ascott-under-Wychwood 78 Bromfield/Ludlow 22.5 Lostwithiel ? 1908 – no official record exists, possibly never installed.
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Post by delaplume on Feb 8, 2019 0:44:09 GMT
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Post by delaplume on Feb 8, 2019 5:24:25 GMT
The "Other" 8-wheeled tender}------- Just as much a mystery as Churchward's 8-wheeled tender on The Bear is the other one which was of more conventional appearance...So I thought a slight deviation might be in order ??
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Post by delaplume on Feb 8, 2019 5:44:53 GMT
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Post by delaplume on Feb 8, 2019 6:02:20 GMT
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uuu
Elder Statesman
your message here...
Posts: 2,807
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Post by uuu on Feb 8, 2019 8:45:08 GMT
....I'm not sure just what the "Approx. mileage" refers to.... Would that be miles to the terminus? So as showing on the trackside posts/signs. Wilf
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Post by Deleted on Feb 8, 2019 8:48:12 GMT
Which tender is that Alan?...I can't see any bogies which IIRC is what 'The Great Bear' has.. Pete
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