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Doddys HaupWerkstatte - My build thread

Started by Doddy, Mar 02 2018 10:42

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0 Members and 1 Guest are viewing this topic.

Doddy

I am about ready to start assembling some Gloucester Bogies supplied by Wallsall Models, designed by Keith Smith.



Question is how to retain compensation of the sideframes? - assuming that the loose fit of the bearings is designed to do this - what design of bogie transom/crossbeam goes in between the two sideplates? The photo below shows the Walsall Models Orienstein & Koppel bogie sideframes which I suggest would work in the same way as my Gloucester Bogie design.




Any ideas from more experience modellers who have used these products and/or have knowledge of compensated bogie designs would be welcome here?

Many thanks in advance.
"You don't know what you don't know"

Peaky 556

Doddy, my suggestion, if you want to use those side-frames and have compensation, is to have a piece of bent flat bar, with the ends bent down, joining the two via a new central hole drilled into each frame.  The fastener for each connection would be left slightly loose and thus enabled to pivot, thus providing the compensation.  A simple short screw and self-locking nut and a few flat washers would be needed.  I have tried this method with some prototype Blue Pullman bogies, but discovered that I hadn't left quite enough rotational travel on each pivot so severe camber changes were not totally accommodated.  In principle it seemed to work ok.

Cheers, Tim

Peaky 556

Ignore the gears and you should see the basic principle. 
Tim


Doddy

Working with Tim on him supplying his Slaters wheelsets for a couple of wagon designs, I thought I'd share my research with you all.
The Orenstein & Koppel 'Foster Yeoman' stone wagon uses bogie sideframes which are readily available from Wallsall Models, and the British Oxygen Company 100ton tank wagon uses either Gloucester MKIII or Gloucester MKIV bogie sideframes available from the same supplier.


What I only realised this morning, is that the 3'- 0" Slaters wheels Tim commissioned for his 'Andrews' trucks are almost a nats-whisker within reach of being identical.  At 952.5mm diameter for the O&K wheel, that makes for a 3' 1 1/2" wheel.


Tims wheels are 40.8mm dia and I require 42.146mm dia, The 1.3mm difference is not going to notice in Gauge 3 I think.
More interestingly, Tim choose a disc wheel which with added interest seems to be the preferred wheel type and diameter fitted on modern wagons built for British Railways in my chosen era. (1960s-1980s).

Whether the bogie is manufactured by ESC, Gloucester R.C&W, Sambre et Meuse or Schlieren they all use a variation of disc wheels either with or without brake discs fitted that can easily be represented by Tims newly commisioned wheelsets.





D



"You don't know what you don't know"

Doddy

Viewing the latest reports from Italy and America, I had a wake up call this last week, where in having some medical work done on fitting a new gold cap, the dentist was astonished about the lack of PPE gear issued by the company I am working for. I work in the transport industry carrying clinical staff and scientists to Milton Park Medical Labs whom are working on the Corona Virus.

My week started flippantly with this photoshop of a train full of New Yorkers leaving the MTBA's  Corona Yards, New York City.




Working from home this weekend, I am now getting seriously geared up for the increase in the spread of Corona Virus. Medical specification protective eye goggles, filtered facemasks and latex gloves being the order of the day.







So far - I'm free of infection, I hope you are too!






"You don't know what you don't know"

Doddy

The worlds leading Korean professor who has spent 30 years specialising in treating infectious diseases talks about Corona Virus.

Including

       
  • The three principle methods of infection transmission
  • Methods of protection
In short, wear facemasks, wash your hands regularly, socially isolate.

https://www.youtube.com/watch?v=gAk7aX5hksU
"You don't know what you don't know"

Doddy

The lastest video update from Professor Woo-Joo Kim

A brilliant assessment on the Corona Virus.

https://www.youtube.com/watch?v=QwoNP9QWr4Y

You 'may' need to watch the first interview with Professor Kim for context:

https://www.youtube.com/watch?v=gAk7a...

As mentioned to the Peak builders group, recent activity at RAF Upper Heyford has produced some shocking images. 10 former concrete bunkers that used to house the USAF's F-111 nuclear bombers are now being converted into a morgue for 6000 caskets. Also scientists at Milton Park are developing compounds to dissolve Calcium.

In the first video Professor Kim explains why cremation is very neccessary.




"You don't know what you don't know"

AshleyW

dr sarah jarvis recommends not wearing a facemask, as it can lead to false sense of security and reduce your social distancing. it's only recommnded if you are working and have a cough to prevent your cough being carried forward. the risk from touching your face to adjust the mask is MUCH  higher risk thing to do. additionally,persons buying masks is leading to our NHS not being able to secure purchase of their own and they are now looking at small buisnesses to re deploy their usual output to trying to make more masks and PPE.
i may be wrong, but generally sarah jarvis is bang on.

Doddy

Ashley
Professor Kim is the worlds leading infectious desease treatment specialist having lead teams for SARS and MERS in the middle east and asia. South Korea has the lowest infection rates globally under his guidance.
Sorry, who was that Dr Sarah Jarvis again?
Think I'll put my trust in Professor Kim thanks very much for nothing.
"You don't know what you don't know"

Doddy

The universal wearing of face masks to stop droplet aerosolization is the single most important and most effective public health measure possible to stop the spread of coronavirus. It is also the cheapest. Yet its implementation is virtually non-existent in western countries.


https://www.breitbart.com/europe/2020/03/30/czechs-go-global-masksforall-campaign-after-nationwide-adoption/

In South Korea, Japan, Hong Kong and Singapore the near universal wearing of masks in public is the reason why their case growth curves are so markedly different from that of almost all other nations.


Full marks to the Czech's. USA, Britain, France and Germany (to mention just a few) get the global Darwin Awards for stupidity.


https://www.youtube.com/watch?time_continue=1&v=jZtEX2-n2Hc&feature=emb_logo


https://darwinawards.com/rules/
"You don't know what you don't know"

Doddy

On page 41 of Robin Barnes tomb, Locomotives That Never Were, is a colour plate of the proposed LMSR 2-Do-2 Electric locomotive Number 7000 named 'Wizard' leaving Lancaster Station with the LNWR's 1903 Royal Train Saloons.

The E.S. Cox design envisaged an electric locomotive that could pull a 500ton train between Crewe and Carlisle, a Swiss Ae3/6 rebodied to fit the LNWR/LMS loading gauge. I have HO scale models of the Ae4/7 to base such designs on, but have no knowledge whatsoever of coachbuilding LNWR saloons.

If anybody has any knowledge of published articles (in any scale) regarding the construction of LNWR coaches I'd appreciate a few pointers. Preferably remaining with traditional coach building techniqies and not 3D printing.

Many thanks in advance.

Robert
"You don't know what you don't know"

cabbage

Robert,

As we both lie here and enjoy our wonderful free food... I am familiar with the illustration in the book you mention. But rather than build it as 2-D0-2 I think a 2-A-C0-2 might be a better bet for cornering. Memory stirs -but I think there is an LNWR carriage in the sheets provided by Locomotive Design(?) These would be plywood with metal framed underbodies. His plans are "reasonable" but as I have found out -check it!!!!

Is it going to have a working Buchli drive -or are you going to chicken out!?!?!?

https://www.youtube.com/watch?v=sxKJEYQbI4E

regards

ralph

MikeWilliams

Beware Robert, LNWR 12-wheeled carriages are very complex.  As a start there are recessed end vestibules with rounded corners, several layers on the side and heavily recessed windows.  On the plus side there are many drawings available and a few real ones to look at.

Mike

MikeWilliams


Doddy

Quote from: MikeWilliams on May 13 2020 22:36
This is not a 12-wheeler but the same style.

http://www.cs.rhrp.org.uk/se/CarriageInfo.asp?Ref=582

Mike

Thank you Mike, it appears to be easily accessable as well providing this lockdown ends and I can travel to Polhill without being stopped by the travel police. Don't want them to think I am out for a day at the seaside.

I noticed that two LNWR Royal Saloons are at the NRM, so another outing on hold.

After a brief sojourn in hospital, I'm not allowed anywhere for the next three months anyway. so home research is the order of the day.

Many thanks

Robert
"You don't know what you don't know"