Driving truck brakes

[runner42]

Mar 14, 2017 20:19:30 GMT itchyballs said:

Dec 3, 2016 23:40:40 GMT runner42 said:

Thanks for the considerations for additional facilities to be incorporated. I suppose a fundamental consideration is the size (length) of the trolley and this is influenced by the capability of the locomotive. Do you make the trolley to accommodate just the driver or have it longer to carry passengers. This then begs the question what size and numbers of wheels are required? Where passenger carrying capability is included such things as running boards is an important consideration. Is there any safety standards for the construction of trolleys? Is there any useful URLs that cover the construction of trolleys available?

Brian

     

Ross bishop did an article for a bum truck way back in ame to go with the blowfly. the aals standards use to have i think max axle loading so that should help with the number of wheels. whilst on this forum there may well be a paucity as you suggest, in general there is a superfluity, indeed a plethora of articles available on 4. 6  and 8 wheeled drivers trucks.  I think the man who goes around to show with the Chinese takeaway van sells ready to run drivers trucks.  Bring your cheque book, credit card our titles deeds to purchase))). I would contact ame and buy the back issues))). To have your own drivers truck certainly is a desideratum devoutly to be wished for))).

Thanks for the reply. I have made some progress in constructing my driver's trolley, it's present status is recorded here at the bottom of the page modeleng.proboards.com/thread/10766/today?page=88. The AALS information is available here www.aals.asn.au/Resources/CoP%20Stds.pdf

Brian 

[steamer5]

Hi Jim,
 No problem sharing the design.
I see that we can't attach pictures to this site but need a hosting site, I don't have one!

I try a PM with the pictures

basiclly what I did was made the axels, 3/4", long enough for 7 1/4 gauge PLUS an out board clamp with the bearing out board of this, the axels are gauged, turned to 5/8", for 5", key ways cut, 4mm, the key ways cover the distanance from the 5" to the out board clamp, EXCLUDING the bearing area. Wheels broached for the same size key. I then made spacers that when placed inside the wheels gauged for 7 1/4.
The spacers & the clamps are made from aluminum about 30 mm dia drilled a bit under 5/8", 2 3 mm cap screws drilled & tapped. Then split horizontally bolted up & bored to a neat slightly tight fit, you need then to clamp up on the axel, think this is what I did! Then cut a key way in 1 half of each. Place a wheel on each side, 5" gauge, then the spacer, followed by a spacer. Squeeze it all up tighten the clamps, followed by the spacers. To change gauges remover the spacers side the wheels out, replace the spacers on the inboard side & tighen uo....job done!

hope all that makes sense! Any questions feel free to ask!


cheers Kerrin