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Bits for my next Project

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Wasn't sure where to locate this, so as it will be 95% Metal, here's as good 'a' place as any.

Wanted to use the spare Villiers Mk2 Midget Engine I am rebuilding to power something stationary?, but will also need to have additional cooling.

 

I've been thinking about what I already have laying around in parts n materials I may need and started digging them out from various storage places.

 

Blowing the Cobwebs from my memory, I recalled back in the early 90s salvaging some parts from a 1948 Ransomes Simms & Jeffries Lawnmower, namely 2 hefty brass bearings in Plates that carry a heavy lump of (rusty) cast iron that acted as a PTO Clutch, rpm increase Gear Box and stored a lot of inertia.

The Mower itself was way past fixing up. Shame, as it had a large Starter Hand Crank, the likes of which I have never seen anywhere since. Anyway, I managed to recall where they were. 

 

There's 2 remote Screw Capped Oilers, an old Line Shaft Bearing block (5/8" bore) with Brass Screw Down Greasers. Length of Box section Steel and 15/16" AF high Carbon Steel.

 Also dug out some stubs of 1" and 5/8" AF Brass from my Garage Door Counter weights which turned out to carry several other useful bits.

Previous owner/resident of my property (60s/70s) must have been a Turner judging by the very dusty tarnished evidence-

 

post-94-0-51536300-1442951104_thumb.jpg

 

The inside of this PTO Clutch is similar to a Diff which spins freely when drive is not engaged. A large Brake Band clamps the outer surface and the planet gears inside transfer the drive to the opposite shaft at a 5:1 increase in RPM. I plan for it to act as a speed reduction unit and PTO Clutch.

Condition inside is fairly good, considering there was water amongst the old grease.

I need to make new heavy bushings, fit new bolts and machine the outer friction face which is pitted, but still has the 'Witness' and number marks Stamped in by the guy who first assembled/finished it-

 

post-94-0-05832300-1442951113_thumb.jpg .

 

My main intention on this project is to refresh my limited familiarity with Lathe and metalwork practices on a fair amount of old Brass, Copper, Bronze and Steel parts. I'll be using BSF, Whitworth and BSP thread forms , and I won't be in any particular hurry to finish it, so please bear with me, as even I don't know what it is to look like yet! :huh:  :wacko: .   

 

    

 

 

     

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Thanks Gents, I'll try and maintain the standard you guys set. Here's a few pics, in between some waffle, 'cause I know you like pics.  

Spent some time over the weekend sorting the PTO 'Lump'. Need to take out the wear and as much slack in the meshing bits as possible. 

Have given it a clean up and inspection, ordered 1/4" x 2. 1/2" HT BSF bolts (New old stock) and a Plain Oilite bushing.

Had a battle to remove the large bushing without a press, so had to improvise with a long bolt, various spacers and elbow grease- 

 

post-94-0-70433600-1443463891_thumb.jpg... got there in the end-

 

post-94-0-80053700-1443463900_thumb.jpg

 

Fortunately I had a big enough lump to machine the Flanged Bushing from. The other side was a bit easier to remove being a Plain Bronze bushing- 

 

post-94-0-66753000-1443463909_thumb.jpg

 

First operation was boring and turn the press fit diameter, then reverse to machine the Flange and thrust end to size- 

 

post-94-0-89253100-1443463917_thumb.jpg

 

Managed to finish the bushing to a good fit in both axial and radial sizes to remove the wear, so should last a while- 

 

post-94-0-24238900-1443465353_thumb.jpg

 

Also cleaned up the Line Shaft Bearing mounting ready for paint. Had to machine the base flat after a clean up. A 5/8" reamer went through ok with slight resistance,

so has little wear (un bushed), but not a well machined bore . May bore it out to 3/4" and press some bushes in.

Grease Cups were washed out and had a pickle session in White Wine Vinegar. Polished up nice inside and out- 

 

post-94-0-30990300-1443465362_thumb.jpg

 

Lastly for now, These 2 identical items are going to be the Fuel Tank(s) in tandem with Balance pipes and Fuel Level Tube- 

 

post-94-0-09349300-1443465344_thumb.jpg

 

These have a bit of history and are from my 'Late' Father's career and so I'll put them to use.

Anyone know or care to offer their idea of what they were used for/on ?. Dimensions are- 72mm dia at the open end, and 167mm in height. 

 

Bye for now.

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You're correct of course!.

These were used to start the testing of Avon Engines fitted to a Hawker Hunter pre production Prototype F1 at Dunsfold in the year Date Stamped in the base of the Cartridges.

I also have 2 shell cases from the testing of the 4 x 30mm Aden Cannon Packs fitted to them. I'll try and find a similar use for them on this project as well.

 

Received a lump of hollow Phosphor Bronze today, 2" dia x 4" so I can machine/refurbish the Big Brass bearings using an insert-

 

post-94-0-90118700-1443651076_thumb.jpg

 

Pressed the new bushes into the PTO Lump and made one up to fit where there wasn't one originally to improve the running clearance limits.

A quick assembly to test it showed much smoother drive transfer. Still a bit more machining to do on the PTO before it is ready. 

 

Having trouble sourcing some materials still, need some Cast Iron to make 2 Flexible Drive Yokes (Engine to PTO).

Don't want to import some readymade (nearly) from U.S. if I can help it.

Also need 60cm x 30mm x 0.5mm (0.020") Spring Steel for the Brake Band. All of this stuff I had years ago :banghead: .

Sure you all know the 'Moral' to that story !.

 

Anybody done Metal Spinning on a Myford ?. Look's like I'll need to have a go ;) . 

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The mention of cartridge cases, reminds me of the radial steam engine my grandfather built. He used cartridge cases for the cylinders. The engine is now in Australia with my sister and family. I have somewhere, a copy of Model Engineer with it in.

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I've watched a few vids on metal spinning but never had a go. It will be interesting to see how you get on with it Richard.. Knowing you it will come perfect :)

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The mention of cartridge cases, reminds me of the radial steam engine my grandfather built. He used cartridge cases for the cylinders. The engine is now in Australia with my sister and family. I have somewhere, a copy of Model Engineer with it in.

If you find a picture or the M.E. Magazine, would like to see it Norm. Must have been in a copy before 1984, which was when I started reading the Mag.

 

 

I've watched a few vids on metal spinning but never had a go. It will be interesting to see how you get on with it Richard.. Knowing you it will come perfect :)

 

I'll have a go at it Ian . Have to visit a Wood Turner I know to obtain some hardwood blocks when I'm ready.

 

Got some Lathe time in recently. PTO work is still in progress.

Decided to change the Brake/Strap set up design and not employing a Spring Steel Strap like the Brake layout on some Garden Tractors.

Instead, I'm opting for a rigid Clam Shell type or external version of a Brake Shoe set up.

Have obtained some 6" (152.7mm) ERW Steel Tube which will cover 2 jobs. Bit of a challenge Cutting slices off with only a manual Hacksaw -

 

post-94-0-09246500-1445439455_thumb.jpg

 

First slice in the lathe for finishing the cut end to size-

 

post-94-0-19566300-1445439490_thumb.jpg

 

Will have 4 more of these slices to cut and they will used to make Truck Wheels, as original Cast Iron ones are rare and expensive. 

 

The steel ring is perfect in dimension to accommodate the 3/16" thick Friction Lining and the PTO diameter-

 

post-94-0-25636500-1445439534_thumb.jpg

 

The bearing faces of the PTO are having their faces skimmed and have been 'Spot Faced' where the Bolts pass through-

 

post-94-0-13632800-1445439543_thumb.jpg

 

Phosphor Bronze Bearing Insert finished to outer diameter being 'Parted Off' from the Cored Billet-

 

post-94-0-27799200-1445439552_thumb.jpg

 

Used a 1.1/2" diameter Live Centre in the Tailstock to support the work.

 

'Parted Off' and a light fit in the Bearing so it can be Soldered (200c) in-

 

post-94-0-01688900-1445439578_thumb.jpg

 

Internal bore will be finished last before mounting back onto the Carrier Plate. They were retained by 1/4" Iron Rivets originally and the stress of 'Closing' the Rivets originally had cracked the Bearing flange edge at it's thinnest point. I will use specially made Countersunk Screws in reamed holes.

Have the other bearing to remove next and repeat :) . 

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Small amount of progress. More Lathe time recently and still working on the PTO Reduction unit. Finished making the 8 special bolts for the Bearings-

 

post-94-0-39288000-1446849945_thumb.jpg

 

Refurbishing of the Big Brass Bearings with new inserts is done and ready to bolt onto the Carrier Plates (working on those)-

 

post-94-0-03496600-1446849953_thumb.jpg

 

Checking for imbalance, as it is a heavy piece and I want spot-on. Just the 1/8 BSP Plug to sort and skim the Outer face-

 

post-94-0-16628000-1446849962_thumb.jpg

 

Carrier Plates had the first coat of black gloss, but slow to dry and harden.

 

Next job is making/Screw Cutting the 1/2" dia Tie Rod shafts, Spacers and 1/2" BSF Brass Nuts which will hold the engine and PTO in line. 

I have to draw up the design so I can refer to it for dimensions of parts etc, rather than fabricate and trial fit. More to do on that.  

 

Edit on 13th Nov........ Additional Pic during the skimming of the friction face. Very tight fit on the Lathe with only 1/4" travel spare each end -

 

post-94-0-12863400-1447419787_thumb.jpg

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