flandersflyer

get yourself some of that oak Steve and make up 2 blocks....tapered.... find a way of fixing the 2 blocks together with the tapers facing each other....then swing them and get an O/D for size... should make extracting the spun form easier....if you use a bit of allthread epoxied into one of the oak blocks....you can then use a nut to hold the other one to it....get the nut chuckside....then you just back the nut off....and the form should release...thus allowing extraction of the spun part....

Why? you have bearings to take both radial & axial/linear thrust on a lathe dont you....

just out of interest here as well.... when turning/backing off large, thin O/D discs on a lathe....start from the centre out....otherwise it wont face up flat...

where it breaks out & splits/frets... its a common term used in joinery ...as in: "spelch block"....used to support the back edge of anything put through..lets say a spindle moulder... you would clamp the piece/s and use a spelch block on the back edge when moulding/scribing/relishing....prevents breakout when machining against the grain

its the workhardening though that takes place whilst spinning/coldforming... often copious amounts of annealing are required to achieve the form without introducing hard spots, spelching or stress cracks....

probably rollformed....

no.the 805 used an anzani radial....the engine fitted to this is clearly a beardmore: ....which would make this aircraft more likely an FE2b: .............:-)

i was thinking more along the lines of the open end of that forging being unbraced/unsupported....whilst applying pressure to sit that bushing in....:-)

Not surprisingly there was an inquiry into why such hoplessly obsolete aircraft were still at the front. one of the main drawbacks with the Be2 was that in order to maintain its centre of gravity it required the layout of the observer sitting in front of the pilot. This coupled with extensive wire bracing for the high bay wings...and its poor climb rate & altitude performance left it very vulnerable to attack...particularly from below and to the rear...where the observer had to stand up and fire over the pilots head to the rear.... If bombs were to be carried then the observer had to be left at the airfield. It did enjoy a brief new lease of life though protecting London on the home front. Albert Ball summed it up as a "bloody awful aeroplane" ....although it did have inherent stability....a good quality for observation and aerial photography duties etc..

how much force was required here?...not too much i hope....

side valves are sloggers though....

theres a wikipedia on the subject...here: http://en.wikipedia.org/wiki/Fuel_saving_device

http://tractors.wikia.com/wiki/McCurd

i suppose an alternative (on a lathe with a bigger headstock bore) would have been to use a roller box....

well...it wouldn`t have helped it much....the BE2...or the "querk" as it was known as ...was a bit of a flying joke really....took very heavy losses during `bloody april`.....nope, the best place for it is definately on the ground...

would you not case harden these then?...

unfortunately it goes on closer to home as well....... both HMS invincible: and HMS indefatigable: have recieved unwelcome visits from "collectors".... both these ships went up in titanic explosions at jutland with very heavy loss of life...and as such are designated war graves....

Theres a radial drill virtually identical to the one in the pic at the national coal mining museum at caphouse colliery between wakefield and huddersfield.... theres other machine tools there as well.....nearly all line drive stuff......

is that so?... think rotarys my friend...

you can use a stick welder to unfreeze stubborn bearings.... should work the same for tricky bolts, nuts etc....

i thought it were like soft jaws....where you get a billet clamped in, swing it and bore out the jaws to suit an O/D...

it looks like a gun....:cool2:

depends on how much carbon was in there to start with...

Hmm... not an accurate description really Steve... caus anybody who has acheaved what the team have done down there in Devon isn`t `bodgin`......theres thinking on your feet, machining work, fabrication, joinery, working with canvas etc.... its got the lot really....hasn`t it... Glenn. GLMelectrical.

got them links to work...