LNERGE Posted March 11, 2015 Author Share Posted March 11, 2015 A short movie here.. https://www.flickr.com/photos/32297024@N08/16165999954/ Link to post Share on other sites More sharing options...
LNERGE Posted March 13, 2015 Author Share Posted March 13, 2015 Upthread i wasn't sure how i would use the tipper installation. I've decided to go for a coal concentration depot, or at least imply that is what it serves. this leaves the power station idea with only one option... and a start has been made.. Link to post Share on other sites More sharing options...
LNERGE Posted March 24, 2015 Author Share Posted March 24, 2015 (edited) After a quick search round the net i found a motor and gearbox i thought might do the job. The first try was with a 60 to 1 ratio. I doubt a wagon catapult would catch on. I was surprised how far it chucked the wagon. Next i tried the 288 to 1 ratio... Back to searching the net for something more suitable.. Edited March 24, 2015 by LNERGE 1 Link to post Share on other sites More sharing options...
RMweb Premium uax6 Posted March 25, 2015 RMweb Premium Share Posted March 25, 2015 Richard, How about getting hold of an old mains driven electric clock? These have 240v motors with gearing that will probably be about right. Or how about the drive head for something like a honeywell central heating valve. The drive is again 240v, but possibly a bit quicker than a clock mech. Andy G Link to post Share on other sites More sharing options...
ozzyo Posted March 25, 2015 Share Posted March 25, 2015 Have a look at this link http://www.technobotsonline.com/pololu-1000-1-micro-metal-gearmotor.html OzzyO. Link to post Share on other sites More sharing options...
jwealleans Posted March 25, 2015 Share Posted March 25, 2015 One of the magazines (BRM?) had an article by the chap who built the tippler on Happisburgh. That might have some ideas you could make use of. There are almost certainly some MRC members on here as well, if you can locate htem. Link to post Share on other sites More sharing options...
LNERGE Posted March 25, 2015 Author Share Posted March 25, 2015 Have a look at this link http://www.technobotsonline.com/pololu-1000-1-micro-metal-gearmotor.html OzzyO. That looks like a super little gearbox. I'm put of but the statement that it will strip the gears if stalled. I've built this to show the kids how it was done and their little fingers and where they place them have to be taken into account. I reckon it'll be good for the Rotaside as there needs to be a belt in the drive train. I do have some clock mechanisms tucked away so i'll start the process of finding them. Link to post Share on other sites More sharing options...
LNERGE Posted March 26, 2015 Author Share Posted March 26, 2015 A rummage in the parts box produced a matching pair of coreless motors. I have reverted to the original 60 to 1 gearbox. A proper battery holder, control switches and limit switches fitted. I think the speed looks about right now.. 1 Link to post Share on other sites More sharing options...
ozzyo Posted March 27, 2015 Share Posted March 27, 2015 (edited) The speed looks a bit quick, don't forget that the real thing was lifting about 30 tons or more. Also the angle looks a bit to steep, bring it down by about 15 deg. and I think that it would be about right. A nice job all the same. OzzyO. PS. a small point on the 21/24 ton wagon why is the diagonal strip on the fixed end of the wagon? Edited March 27, 2015 by ozzyo Link to post Share on other sites More sharing options...
73c Posted March 27, 2015 Share Posted March 27, 2015 You could try a 12v low rpm geared ( or not ) motor on ebay, there pretty cheap and add a pwm controller to slow it down a bit more Link to post Share on other sites More sharing options...
LNERGE Posted March 27, 2015 Author Share Posted March 27, 2015 PS. a small point on the 21/24 ton wagon why is the diagonal strip on the fixed end of the wagon? I was given a job lot of around 10 of these wagons with the stripe on the wrong end. It's a factory error, not mine. I'll sort it one day. The intended wagons are the Parkside 24 1/2 minerals (with the yellow triangle).. The angle of dangle is easily adjusted via a 'cam' on the end of the shaft. I'll fiddle in due course. Link to post Share on other sites More sharing options...
LNERGE Posted March 28, 2015 Author Share Posted March 28, 2015 Some progress with the Rotaside today. Here's a short movie of me brutally testing it. I will carry on in due course as i'm sure it's going to work reliably. The bridge is a lash up to help with proving etc. 2 Link to post Share on other sites More sharing options...
RMweb Premium uax6 Posted March 29, 2015 RMweb Premium Share Posted March 29, 2015 The rotaside is looking very good, the movement is looking just how it should. Andy G Link to post Share on other sites More sharing options...
LNERGE Posted April 1, 2015 Author Share Posted April 1, 2015 The Rotaside is now under power but i'm less than happy with it. Here it is tippling a 21 ton hopper.. I haven't located my 13 ton sand tipplers to try yet. How did we end up with such small wagons for sand traffic? Were they that size to prevent overloading? Surely wet sand isn't that heavy? Link to post Share on other sites More sharing options...
ozzyo Posted April 1, 2015 Share Posted April 1, 2015 1 cubic yard of wet sand = approx 1 ton. Link to post Share on other sites More sharing options...
RMweb Premium uax6 Posted April 2, 2015 RMweb Premium Share Posted April 2, 2015 Or an open wagon of dry sand = a darn site less sand than you started with......... andy G Link to post Share on other sites More sharing options...
LNERGE Posted April 2, 2015 Author Share Posted April 2, 2015 There must be a good reason for such a small wagon but I can't think of it. The Marks Tey and Middleton Towers jobs both used 16 tonners. Link to post Share on other sites More sharing options...
Fat Controller Posted April 2, 2015 Share Posted April 2, 2015 There must be a good reason for such a small wagon but I can't think of it. The Marks Tey and Middleton Towers jobs both used 16 tonners. I did a quick conversion from the figures given in OzzyO's post (no 40); 13 cubic yards is 351 cubic feet. BR Diagram 1/071 shows the capacity for the 13t Sand Tippler as being 330 cu feet, so the wagon would seem to be too small for its maximum load, if loaded flat to the top of the sides. Link to post Share on other sites More sharing options...
meil Posted April 2, 2015 Share Posted April 2, 2015 1 cubic yard of wet sand = approx 1 ton. ! cubic metre of wet sand = 1.8t Link to post Share on other sites More sharing options...
LNERGE Posted April 2, 2015 Author Share Posted April 2, 2015 (edited) I found my 13 tonner. The bumf i have on the Rotaside says it copes with wagons between seven and ten feet high. My model(standard Bachmann) comes out at six feet nine high but tipples just fine. I wonder what height the type is in the official drawing? Edited April 2, 2015 by LNERGE Link to post Share on other sites More sharing options...
Fat Controller Posted April 2, 2015 Share Posted April 2, 2015 I found my 13 tonner. The bumf i have on the Rotaside says it copes with wagons between seven and ten feet high. My model(standard Bachmann) comes out at six feet nine high but tipples just fine. I wonder what height the type is in the official drawing? Have a dig through this lot:- http://www.barrowmoremrg.co.uk/BRBDocuments/BRFreight1Issue.pdf Link to post Share on other sites More sharing options...
LNERGE Posted April 2, 2015 Author Share Posted April 2, 2015 Six feet four and eleven sixteenths on the drawing. I'll revise my measuring of the model to six feet six. Still tipples ok. Link to post Share on other sites More sharing options...
hmrspaul Posted April 2, 2015 Share Posted April 2, 2015 I didn't record the speed of the tippler at Grimethorpe when I photographed it, but the video looks good to me. Nice work. http://paulbartlett.zenfolio.com/grimethorpetippler Paul Link to post Share on other sites More sharing options...
LNERGE Posted April 2, 2015 Author Share Posted April 2, 2015 I didn't record the speed of the tippler at Grimethorpe when I photographed it, but the video looks good to me. Nice work. http://paulbartlett.zenfolio.com/grimethorpetippler Paul Your Grimethorpe photo's have been very useful with this project. I was lucky to get a personal guided tour of the Barrington tippler in it's last weeks of operation.. Link to post Share on other sites More sharing options...
RMweb Premium uax6 Posted April 3, 2015 RMweb Premium Share Posted April 3, 2015 Richard, The last couple of seconds of your Barrington film shows the difference between your model and the real thing. The real thing looks to have a last stage, where the rail platform levels out to match the ground level. On your model this looks fixed (Is it?). I presume the reson for this extra moving part is to keep the wheels on the rails, as, shown by your model film, if this platform doesn't move up at the outer edge, when the rotation starts the wagon falls to the side, which when coming back down again, could lead to the outer wheels landing on the outside of the outer rail. Interesting film, its amazing how much of this stuff hasn't been recorded. Andy G Link to post Share on other sites More sharing options...
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