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Old 19-07-18, 08:15 PM   #11
Robotstar5
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You've done a grand job on that

Stuart.
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Old 20-07-18, 08:19 AM   #12
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Apart from the obvious paint touch-ups what are folks opinions on painting nuts & bolt heads?
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Old 20-07-18, 08:51 AM   #13
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In most cases they would have been paint from the factory,as the machine would have proberbly had a final blow over once assembled.
Painting them on your mill atleast means you dont have to worry about them rusting and staining the paintwork,or thats my opinion

regards
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Old 15-08-18, 07:12 PM   #14
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Youtube video of the mill in operation at last:

Henry Bamford & Sons Rapid Grinding Mill
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Old 15-08-18, 11:03 PM   #15
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Looks good does that.

It should be able to take it faster than that and also grind it finer.
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Old 15-08-18, 11:17 PM   #16
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Quote:
Originally Posted by Appletop View Post
Looks good does that.

It should be able to take it faster than that and also grind it finer.
Agreed, the engine was only running at around tick-over, I was afraid that grinding more material would require a larger width belt due to potential slippage because of the higher work-load.
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Old 16-08-18, 07:27 AM   #17
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Probably be OK with that belt.

Can always lift the wobble box and loosen the plates until it clears if it does slip.
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Old 16-08-18, 12:47 PM   #18
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Lovely restoration, looks great! Never having had much to do with mills itís interesting to see photos of the workings.

Re nuts and bolts, they look great left bright but itís hard work keeping them that way come winter. I tend towards painting them nowadays, just leaving any fixings which may need to be disturbed for servicing/ adjustment etc.

Phill.
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Old 16-08-18, 04:59 PM   #19
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Quote:
Originally Posted by wolseley phill View Post
Lovely restoration, looks great! Never having had much to do with mills it’s interesting to see photos of the workings.

Re nuts and bolts, they look great left bright but it’s hard work keeping them that way come winter. I tend towards painting them nowadays, just leaving any fixings which may need to be disturbed for servicing/ adjustment etc.

Phill.
The business end has a set of fixed reversible cast iron grinding plates and a set of reversible rotating grinding plates. the material is introduced at the cone end and progresses towards the outer most point of the plates. You can see four 'tabs' cast onto the rotating plate holder, these create a kind of rotating draught of air inside the grinding chamber which acts to direct the flow of ground material to the output spout. The plate holder engages in a key-way on the drive shaft to turn the rotating plates.

These plates are under spring tension and always want to push away from the fixed plates. The distance between the fixed and rotating plates can be adjusted from the end of the chamber with an adjuster and locking device to vary the distance between them to determine how course or fine the material needs to be.

Fixed plate and cone:



Rotating plate and cone fixed to their holder:




This rotating plate is also held under tension by two springs that can be seen on the outside of the grinding chamber. If a stone or any large object falls between the plates the springs allow the rotating plate to move outward to prevent damage to the grinding surfaces.

Rotating plate and holder (this photo was taken before the clean-up began):



The fixed and rotating plates and cones are reversible with grinding surfaces on both sides. When worn they are simply unbolted and their position reversed (the fixed plate becomes the rotating plate and vice-versa)
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Last edited by Garak; 16-08-18 at 05:01 PM. Reason: Added text
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Old 16-08-18, 08:51 PM   #20
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Thanks for the detailed explanation!

Phill.
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