Member postings for david homer

The Explosion Demonstration for new starters at General Foods consisting of a 10" od Steel tube, open top solid bottom, an airline connection towards the bottom, a spark plug at the bottom, connected to an HT transformer with a push button. 1teaspoon of custard powder was placed was in the bottom, a paper diaphragm held over the top with a Jubilee clip. The routine was a short shot of air to get custard powder airborne and then a push of the button for the ignition source and you end up with a small bang and a burst diaphragm.

David

I worked for 30 years at General Foods (Birds Custard and Maxwell House Coffee) in Banbury where we had a dust explosion in the Desserts area 1981 involving one of the Custard plants. I was just coming onto night shift at 9:45 pm and was just in the locker room getting changed when the explosion occurred, the fire alarm was sounding and as maintenance staff we were part of the Fire Team and started off towards the area being announced over the Tannoy system, walking through a fog of cornstarch dust..

For anyone interested the link below is for the Factory inspectors report.

https://archive.org/details/op1275789-1001

David

Thank you Jason for the correction.

David

Try M-Metals they list 5"od x 10gauge C106 £8.75 an inch +VAT + Carriage

David

Tracy tools tools do them I believe

David

have you seen the videos on you tube by Stefan Gotteswinter about tramming his mill and using epoxy under the vertical column

David

Try french calk or talc if you would like it to smell nice, just sprinkle some on and spread it out, it gets rid of the tackiness, worked on mine.

David

I was taught as an apprentice that when you get chatter drilling or countersinking to put a small square of emery cloth under the drill/countersink point and pull down hard, breaks through emery cloth and starts cutting properly.

David

I had a radio the same, rubber going a little sticky, I rubbed some talc over the sticky bits, cured the stickiness and also smelled nice.

David

if you look at this link it gives some information about painting with Phoenix Paints and temperature, of course it may not apply to other makes, I have been doing some with both a brush and an airbrush in an unheated garage with no problems. Parts were placed in garage before hand and paint taken out at time of application.

https://www.phoenix-paints.co.uk/application-of-precision-paints-and-temperature

David

I should add that it does not need baking to cure it and it is recommended that you paint below 10 degrees C

David

Phoenix Precision Paints do a Higher temp paint in their range of Cherry Paints maybe be a little more expensive, haven't used my tin yet but have used their normal temp black and it gives a good finish. They recommended it for a loco smoke box.

David

Looking at their website it looks like they sell EF Flux paste 250g and 500g exactly the same price as powder. Their mix of 455 silver solder and flux is in a syringe.

David

HPC gears are good source of spur gears, not cheap though. I think Myford gears are 20dp or used to be on earlier lathes.You will have to modify the bore to suit your needs they do 33 and 34 tooth.

David

The threads on those Pressure Switches i would expect to be 7/16" SAE which was a standard thread for refrigeration 1/4" copper flare

David

After seeing this post I caught sight of this add on you tube, not sure if these are any use but are made for the application you need, hope the link works

.georgeshop.co.uk/products/mintiml™-screw-extractor4-pcs?variant=32927540707363&gclid=EAIaIQobChMIr5zLofnM7AIVyt3VCh2w0ggiEAEYASAAEgKIw_D_BwE

David

You could try Noggin end metals, they are listing 4" 10swg approx 3.25mm (i think) but limited stock. Also look at M-Metals both do C106

David

Hi, I have used the moisture absorption trays/traps and crystals available from Wilkos, Robert Dyas etc and they work very well in my workshop which is electrically heated so no moisture from that. The moisture in a well sealed shop is from your breathe blow lamps and carrying in water on a wet day surprising how much moisture they collect. We also used to put them in a narrowboat we had over the winter but they did not collect much which I think was due to the boat being colder.

David

Had a similar problem with a small DAB radio where a proportion of the case had rubber on it which went very sticky, if I had some french chalk I would have rubbed that on it, all I had was talc, solved the problem and smelt quite nice too that was about 9 months ago and still ok.

David

Some information here may help

http://ibls.org/mediawiki/index.php?title=Design,_Care_and_Feeding_of_Check_Valves

David

Edited By david homer on 03/03/2019 10:10:53