Search found 678 matches

by JFS
Fri Feb 21, 2020 8:40 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Hello Tony, Very sorry to hear about the flood - I trust there is no permanent harm. Is this something like you had in mind:- Collars.jpg They take only seconds to bend-up and blow over with a bit of red rattle-can. I will ask Jeremy if he thinks they might be stocked in the stores. Does not help wi...
by JFS
Tue Feb 11, 2020 4:02 pm
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

Hello Tony,

Just to mention that your wires might be a bit on the thin side (compare them to what was originally fitted by by the previous owners!). This could be causing a fair voltage drop around the layout and might explain why a wrong-way diode did not blow!

Best Wishes,
by JFS
Mon Feb 10, 2020 1:11 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

... and decides by diode matrix or whatever ... Hi Dave, I think you might find a thousand devils lurking in that tiny detail! To me, the biggest ADVANTAGE of an electircal approach is if it is implemented digitally (I know of a very large layout with over 500 levers done this way) and I have writt...
by JFS
Thu Feb 06, 2020 10:52 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Could either of you please advise what the Max Throw is for the Top Take-off Clevis and Bottom Take-off Clevis is please? The throw of the top clevis is 16.5mm (intended to give 15mm after some losses in a rodding run). The bottom take-off gives a max of 6.25mm (intended to give 5mm after losses) H...
by JFS
Sun Feb 02, 2020 8:42 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

... I'll try to not come up with too many supplementary questions. Tony I don't see why not - it is your topic: ask whatever you want for me! 2. Do you think that signals 14, 19 and 22 should be yellow? IE. authorised to pass without being cleared providing you are not taking a route that would req...
by JFS
Sun Feb 02, 2020 2:57 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Before anyone says anything about the guide wires, I haven't cut and tack soldered them yet as, with my usual lack of confidence, I want to use the frame for a while before committing it to any degree of permanence. Had you looked too closely at the Minories frame, you might have spotted that, even...
by JFS
Sun Feb 02, 2020 2:49 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

There is something in the instructions about using pins in the central holes in adjacent nibs to keep the bridles apart. I don't think that this would work on mine as there are no full sized nibs in close enough vicinity and, in any event, I didn't want to take it all apart again. However, I came u...
by JFS
Fri Jan 31, 2020 12:40 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Well done! Hope it was not too much of a trial. Time for the Brown flux! Be sure to get it good and hot - you should see the flux bubbling (it does not boil) and the a bead of solder should appear. Once it has cooled down, nothing will shift it ... Just as a suggestion to others following in your fo...
by JFS
Thu Jan 30, 2020 6:32 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

I have the most awful feeling that everything is going to have to be dismantled to access it! That should not be necessary at all - assuming you did as suggested(!) and divided the pivot shaft into 5-lever lengths. If so, then "all" you have to do is to work each length of rod sideways, u...
by JFS
Thu Jan 23, 2020 4:50 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Something that I had not spotted at the planning stage and, in fairness, unless you've done this before you are unlikely to notice, is that you cannot easily place a single, double ended nib, immediately above or below a conditional lock. It is true that the swinging bits do get in the way and you ...
by JFS
Sun Jan 19, 2020 11:20 am
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

The nibs are nominally the same thickness as the tappets. Therefore, the nibs that are to be effected by the swinging bit (?) attached to the tappet, do not actually come into contact with it. I can't tell from your photos but I assume that the nibs need to be doubled in thickness for it to work. I...
by JFS
Tue Jan 14, 2020 1:05 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Tonycardall wrote:... I have noticed a massive gap in the instructions. ...


Rather worried about his - let me look into it.
by JFS
Tue Jan 14, 2020 12:51 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

I apologise that this learning process is taking me so long. It must be very tedious for readers to see how slow going it all is and how many basic errors I am making. Not at all - it can be a very iterative process for those - including me - who do this as a once in a while hobby, rather than an e...
by JFS
Mon Jan 13, 2020 10:13 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Howard has gotten the better of my conscience and I have attempted to incorporate the conditional locking. Ha gotcha! Looks like you are making some good progress here - well done. Sorry I have not had time to look fully through it, but fortunatley, Keith is on the case. Just to say that you have g...
by JFS
Sat Jan 11, 2020 4:33 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Well done Tony and I am looking forward to having a look through it when I have a mo! Not sure if you might have slightly misunderstood the purpose of the conditional lock - what is going on is that the Starting Signal locks all the points in Rear of it Either Way and also locks out any conflicting ...
by JFS
Thu Jan 09, 2020 8:06 am
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Hello Tony, You seem to be following a good path here - a bit of thinking about the job goes a long way! You will find that there is a degree of tolerance in lining up the frames and locking trays, but the closer you get to perfect at each stage the better. The main thing to check when you have the ...
by JFS
Fri Dec 27, 2019 11:04 am
Forum: Manchester AG
Topic: Progress with Slattocks Junction
Replies: 102
Views: 30187

Re: Progress with Slattocks Junction

John Palmer wrote:... gradient post on the Werneth Incline marked 1 in 27


You are quite right John - well spotted!
by JFS
Thu Dec 26, 2019 1:49 pm
Forum: Manchester AG
Topic: Progress with Slattocks Junction
Replies: 102
Views: 30187

Re: Progress with Slattocks Junction

... any coal for Chadderton was taken back through Rochdale and round the Oldham loop to Chadderton yard. Are you sure about that Tony? Oldham (Werneth) was at the top of the 1:37 and Chadderton was at the bottom - not sure I would fancy working loaded coal trains down there: too great a risk that ...
by JFS
Tue Dec 24, 2019 7:43 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Many thanks for that Tony - I have uploaded a revised version which includes the revision of the fret layout.

I am sure you will spot further issues - please feel free to let me know.

EDIT: I think I have sorted the references to 1.4mm wire but again please let me know what you think.

Best Wishes,
by JFS
Tue Dec 24, 2019 1:53 pm
Forum: Manchester AG
Topic: Progress with Slattocks Junction
Replies: 102
Views: 30187

Re: Progress with Slattocks Junction

Coal Concentration Depots were introduced in the late 1950s, but most dated from the early 1960s. ... True, but Chadderton opened on 12 August 1914 - albeit less fancily titled a "Coal and Mineral yard" at that time! Equally, if history has been flexible enough to permit a goods yard at S...
by JFS
Tue Dec 24, 2019 11:08 am
Forum: Manchester AG
Topic: Progress with Slattocks Junction
Replies: 102
Views: 30187

Re: Progress with Slattocks Junction

Hello Ralph, Just to support what Dave said - it is looking superb, and I agree it makes the scene. Well worth your hard work! Re coal supplies - a mill of this size would have burnt about 60 tons per week when on full load and (depending on the type of yarn) processed between 20 and 40 tons of cott...
by JFS
Sat Dec 21, 2019 6:50 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

In fact, what you didn’t see was the awful mess I made of fitting them. Well, it is where you end up that matters - even if the route takes you the long way round sometimes! If it is any consolation, I had one go wrong on me not long ago (after doing dozens of them) the reason came down to the tab ...
by JFS
Sat Dec 21, 2019 9:17 am
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

I may even venture into metal vehicle/loco kits once this project is over. Well, improving skills and building confidence is what this is all about - so very well done! I did mean to comment about the process of joining frame units. I see from your photo that a number of the frame sides do not line...
by JFS
Fri Dec 20, 2019 10:45 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Howard, yes please, suppliers of suitable piercing saw blades would be useful. Though, if I understand correctly, I don’t actually need to cut any more tube as the alignment jig is made and I should be able to use that for each of the drive mechanisms. ... Tony Tony, Here is a supplier of piercing ...
by JFS
Fri Dec 20, 2019 10:31 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

John, Where does the 'nibs and bridles' terminology come from? Is it GWR practice? They did love having their own naming conventions. I, and the IRSE, have always known these as 'locks and bars'. Regards Hello Keith, Ignore the "John" - its Howard here! I picked it up as one picks up habi...

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