andypugh
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Posts posted by andypugh
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12 minutes ago, Bill Coates said:
A bit of thread hi-jacking again....I'm not in the same league as you guys but I'm rebuilding a 1934 Singer
Ben has a Singer too: https://hmvf.co.uk/topic/30968-1914-dennis-lorry/?do=findComment&comment=461079
15 minutes ago, Bill Coates said:have found a thread size I can't identify. It's 1" diameter 16tpi and just to confuse...is l/h!
There is no requirement that any thread conform to any standard. Especially if LH.
What you have was probably called out on the drawing just as "1in x 16 LH" and left at that. Possibly with a reference to a matching gauge.
I don't see any candidate threads in this list here: http://www.bodgesoc.org/thread_dia_pitch.html
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1 hour ago, Citroman said:
Here just over the border at the Aachen technical university they can 3D-print metal. No one like that in your area?
You can order 3D printed aluminium online. But it's horribly expensive:
https://www.shapeways.com/materials
I looked at having an inlet manifold for a motorcycle cast, and it would have been £1200.
However, I think that the main part of the cost is the overall volume (and especially height) so the pump parts might be worth investigating.
3D printing a pattern for conventional foundry casting is probably worth considering, though.
We have a couple of Aluminium printers at work, but sadly I have not found a way to sneak my parts on to them.
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54 minutes ago, alsfarms said:
I am really not familiar, is the "Dennis" truck make still in production?
Arguably
https://www.alexander-dennis.com
https://www.dennis-eagle.co.uk/en/
You can still buy a vehicle with “Dennis” on the front.
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On 12/10/2020 at 3:01 PM, alsfarms said:
Here is a picture of the manufacturing of the frame for a Riker truck. Most assuredly not modern mass production technology!
I visited the Dennis factory in the late 1980s and it was much the same then. I think that low-volume truck production might have changed less than you think.
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On 10/4/2020 at 5:44 PM, Tony B said:
That central accelerator pedal! I drove a Mk1 Quad and a mate'sMercury with that set up. The underpants bill went up alarmingly.
I had the inverse problem. After I finished my course at university I hung around for the rest of the summer taking the fire engine (which has a central accelerator pedal and hand-operated brake) to rallies. When it was all over I rented a transit van to take all my stuff back North to start a PhD.
It was as I was heading down my road, which runs straight out into the A4 near Heathrow, that I suddenly couldn't remember which pedal was the brake on a modern vehicle.... -
11 minutes ago, Richard Farrant said:
The point I was making was that anyone working on a vehicle that was for example BSF / BSW threaded, then it makes it easier for others to maintain it if all original types of threads are employed.
I don't know if you were replying to me, but you quoted my post so I assume so.
I would never (well, almost never[1]) dream of using anything but an exact replica thread and fastener.
What I was pointing out was that a correct imperial coach screw can be found inside the metric one if you peel it carefully.
[1] The flywheel bolts on the 1916 Dennis currently have metric heads, but as they are prevented from rotating by machined flats rather than a spanner this is not a concern for assembly/disassembly. I used metric washer-faced bolts as a source of high-tensile steel of the right type and heat-treatment.
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42 minutes ago, Richard Farrant said:
Surely 10/16" is commonly known as 5/8" ?
It is, but stated the way I did I feel it makes it clearer that an M16 bolt has 1/16" of extra diameter to work with.
(If I ask you what the difference is between 5/8 and 9/16 isn't the first thing that you do to double the 8ths?)
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34 minutes ago, Minesweeper said:
16mm is close enough - it is now just satisfying Steve who is a Purist!
When we needed some feather-edge coach bolts for the wings of the fire engine one of the club members (a famous loony) re-machined metric bolts. He used MNC, Manual Numeric Control, for the heads. He had a table of coordinates and dialled them in by hand on the lathe handles.
M16 is 10/16" so I would imagine that you could find some 9/16 coach bolts hiding inside metric 16mm ones.
M14 is slightly undersize for 9/16. And I rather expect that M14 coach bolts are rarer than 9/16.
However M16 coach bolts are likely to be 2mm pitch, so I imagine that you would need to cut all the thread off of over-length ones to get a good thread.
Alternatively, perhaps try the US, but again buying over-length and re-threading.
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2 hours ago, alsfarms said:
Surely pre WW-1. What a brute these early steam engines were. I thought to share the You Tube link for those steam enthusiasts among us. Enjoy!
At first I thought that the counterweight on the sledge wasn't moving (it moves forwards through the pull in competive pulling) but on a re-watch it is. So that's quite impressive.
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7 hours ago, alsfarms said:
Here is another interesting page with Riker information....
"We have a pressure lubrication system, but you can turn it off once the engine is run-in as it is clearly a silly idea which will never catch on"
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2 hours ago, alsfarms said:
HMMMM, does anyone have pictures from the time that may show the subtle differences in Khaki paint used by Allied partners?
You might find contemporaneous oil paintings, I suppose.
Colour photography was available at the time, so I would not want to rely too much on colour fidelity. Especially this long after the fact.
There is a 1917 photo of a French Soldier on the Wikipedia page, interestingly: https://en.wikipedia.org/wiki/Color_photography
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12 minutes ago, PITT24423 said:
Will need them at Dorset if its wet ⛈️ like 2014 ,Webbys Locomobile was unstoppable with its original chains on.
Maybe, I remember an Enfield Pageant in the 80's where the field was like a mud pudding, with a dry layer of turf over a squidgy base. Low gound-pressure vehicles didn't even notice, but those of us on narrow solids were completely stuck.
But: The simple application of a Landrover was a lot less bother than putting chains on.
Not that seeing chains in action isn't an end unto itself.
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21 minutes ago, Great War truck said:
All seven of Rear Wheel Chain Brackets now removed from the first wheel - it is questionable if any of them are fit to fight again
Just an opinion, but they are original, and you are unlikely ever to need to use them, so I would keep them, patina and all.
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5 hours ago, Citroman said:
You are right so it seems there are 2 survivors.
So, how can we get them both on the 2022 HCVS Brighton Run?
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9 hours ago, Bob Grundy said:
Yes, very good. Do we know which canal and where the traffic scenes were ?
If you turn on captions it tells you where every scene was shot.
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3 hours ago, alsfarms said:
What is your plans for the core? If I stay with the Riker project, I will need to build the radiator for that truck also.
Are you following the 1908 Dennis thread? Ben is building an entire radiator from scratch there, too.
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It's like a Karrier Cob that's gone terribly wrong 🙂
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1 hour ago, alsfarms said:
used as a pattern from which to have a new good pattern built using modern technology.
I assume that you have seen Ben's 3D-printed radiator patterns?
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11 minutes ago, Citroman said:
I have seen a lot of vintage automobile documentation in the library of the Technical University of Aachen
Ford has a big research centre in Aachen. Perhaps there is a connection.
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13 hours ago, Great War truck said:
The first of the two Brake Bands now has its ends riveted on but still the second one to do. Riveting just a little awkward for one pair of hands but the "gallows! helps.
What you need is a hydraulic rivet squeezer 🙂 (I am surprised that you haven't made one?)
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On 6/5/2020 at 9:41 AM, Alastair said:
I have a 1911 Renault and the exhaust manifold has a female thread for attachment of the down pipe. The thread is almost non existent and obviously a very non standard size. Does anyone know whether the Pyro Putty mentioned above set hard enough for me to cut
a viable thread in it?
Off topic for this thread, but here is how it got fixed:
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6 hours ago, Great War truck said:
It is actually a mobile pigeon loft, so i think that is to allow the pigeons easy access.
Isn't the whole thing probably an observation post? So the pigeons are just the 1914 equivalent of radio aerials.
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15 minutes ago, BenHawkins said:
The baffle in the cast sides put banks of tube in parallel giving the water a serpentine path (putting each bank of tubes in series with the next).
How mildly insane!
WW1 Peerless lorry restoration
in Pre WW2 vehicles
Posted
It's probably worth trying to figure out the thread angle. There is a fair chance that a British car of that age would be using 55 degree Whitworth profile threads.
Not that measuring a thread angle is particularly trivial.