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Wadkin PK restoration

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Wadkin PK restoration

Postby wallace » 12 Jan 2022, 18:30

Since I finished the bandsaw yesterday I thought I'd crack on and start this thing. I got a message a couple of years ago asking if I knew of any history to it. All I knew was that it was an early generation 1 machine. Oh and I wants it.

I offered to buy it but he was not ready to sell it. But he did say if and when he would contact me. Going forward I messaged him every few months to see if it was for sale and eventually he must of got sick of me asking so he offered it. The price was high, twice as much as I knew I could buy one for elsewhere. But like I said earlier 'I wants it'.



His place was not suitable for pallet collection so I drove to halifax and put it in my VW. I remember it well because after I'd loaded up and secured everything I had a little rest and had some food and coffee. It was then I saw a middle aged woman saunter up to my window and ask, 'do ye fancy any business luv' in a very yorkshire accent. I declined but did offer her a butty, she looked knackered.



Anyway I digress, I've been looking forward to this one for ages.



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Do you see the 115 stamped after the PK, that is what number it is but wadkin started at 100 so my machine is the 6th machine built.



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It was built on 13th sept 1928



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It was overhauled 4 years later and it looks like the speed was changed. Can you imagine a machine nowadays being tested for 6hrs.



The thing that floats my boat is that the PK was unveiled to the public at the 1928 trade exhibition, maybe this is my machine.



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This is the first time I've done a generation 1 and their are lots of modifications on later machines



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The ruler is etched into the table, later a chesterman ruler was inset



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These bolts are for extensions to acomodate a longer slider



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Its had alot of work done to it at some point, it has a modern dc break and a crown guard from a much later PP



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Back in the day this is what was in use



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I cant imagine why the PK took off



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Re: Wadkin PK restoration

Postby Vann » 12 Jan 2022, 23:18

Nice.

I'm already enjoying the 'spot-the-difference' with later models.

Yours was only the second PK built as an AC powered machine - PKs 105 to 113 having been built as DC machines (230v or 460v) although several of those were modified to AC before leaving the factory. I guess even back then DC was loosing popularity.

Cheers, Vann.
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Re: Wadkin PK restoration

Postby Trevanion » 13 Jan 2022, 00:35

This one is going to be a good one, do you have a matching crown guard or are you going to keep the one off the PP on it?

The P.J. is an interesting one, I've don't think I've seen a table saw with a tilting table in use, must be very awkward to use when tilted with the weight of the timber bearing into the blade thanks to gravity.
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Re: Wadkin PK restoration

Postby wallace » 13 Jan 2022, 09:39

Vann I knew you would like this one, dont you have a tag picture of an earlier machine.

Trevannion, I have a crown guard off a AX but I think it has the mounting hole diagnally and not right angles, I also have a nice brass crown off a big rip saw bench but that is meant for a 30" blade so no use. Ideally I would like a wadkin & Co crown guard.

I actually have one of those PJ machines I got it from a really old foundry in blackburn. The sad bit is its had its double arbor mechanism removed. It has some crappy pillow block bearings with a spindle holding a metal cut off disc. It was being used to cut off sprues on castings.
Can you imagine doing a 45 degree rip on the thing
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Re: Wadkin PK restoration

Postby wallace » 13 Jan 2022, 18:19

I made a mistake in my earlier post this machine was the 11th made and wadkins machine numbering starts at 105. Thanks to Vann the wadkin statistician.



Wadkin added flip top oilers on later models here for the raise and lower shaft.



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I find you dont need much heat to free up stuck pins



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This has definately been taken to bits in the past. The tapered pin has been wacked in too hard. I had to drill it out.



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The grease nipple has been rubbing when tilted



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I found a broken stud which someone has attempted to drill out not so well. I wont be able to drill it out so might try the doubleboost method of welding a nut on it.



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Now this is a bit odd, this is where the gear for the tilt is attached,



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Its almost as if someone messed up the pattern for the base casting, and forgot to add a hole and a raised area that would normally be machined flat for bolt holes.



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And this part has been cobbled together, the bit where the shaft goes through is nicely bored with oil grooves inside, but there is thick steel welded on the sides for the bolt holes.



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Re: Wadkin PK restoration

Postby Vann » 13 Jan 2022, 21:57

wallace wrote:Vann I knew you would like this one, dont you have a tag picture of an earlier machine...

Hi wallace. I have a picture of the tag off PK 110 (in Scotland) and of the test page.

wPK 110 6150 Scot.jpg
(456.7 KiB)
PK 110 test 6150.jpg
Tested 24th July, 1928 - 20 days before PK 115.
(493.24 KiB)

After seeing that mess they made with the tilt gear on PK 115...
PK 115b.jpg
(108.69 KiB)
... I tried to blow up the only photo I have of that part of PK 110.
PK 110a.jpg
(131.3 KiB)
As far as I can make out, PK 110 has a cast boss there. That would suggest the 'bodge' on PK 115 is not a modification to early PKs - but a machining cock-up specific to PK 115 (if I'm seeing the detail correctly with these old eyes :eusa-shifty: )

Cheers, Vann.
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Re: Wadkin PK restoration

Postby wallace » 13 Jan 2022, 23:23

That makes sense especially the way the section is drilled out of the main casting. Someone probably screwed up the machining and it had to be bodged.
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Re: Wadkin PK restoration

Postby wallace » 14 Jan 2022, 18:57

Ive been removing the old paint mainly at the bottom where it was really chipped, theres no point removing every bit because the filler they used is really solid.



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Followed by a load of aluminium filler



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I've done quite a few PK's and never thought to put the casting on a bench to work on.



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Wadkin would stamp parts with the machine number to keep them with the correct machine. Looks like someone picked up the wrong bit.



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This part is off an earlier version



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This poor thing has certainly been in the wars, the fence plate has been welded and re machined



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Also the blade flask has been snapped and welded back together



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A later version of the trunnion



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Re: Wadkin PK restoration

Postby Mike G » 14 Jan 2022, 20:44

There's some great restoration channels on Youtube, but none of them are as good as this......
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Re: Wadkin PK restoration

Postby MattS » 14 Jan 2022, 21:39

Mike G wrote:There's some great restoration channels on Youtube, but none of them are as good as this......



I thought the same this week after reading this thread then saw someone restoring a Startrite pillar drill
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Re: Wadkin PK restoration

Postby Vann » 14 Jan 2022, 23:58

wallace wrote:...This poor thing has certainly been in the wars, the fence plate has been welded and re machined

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Also the blade flask has been snapped and welded back together

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Hmmm. I suppose you could pick up a better condition fence plate off a later machine, but I guess most of the other battle scars you'll have to live with.

I can't tell, is the blade flask aluminium or cast iron/brass?

Cheers, Vann.
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Re: Wadkin PK restoration

Postby wallace » 15 Jan 2022, 09:47

Mike G wrote:There's some great restoration channels on Youtube, but none of them are as good as this......


:oops:

I saw one of someone restoring an old adjustable wrench which had over a million views and people gushing about how fantastic it was. It was ok but nothing grand. :D

Vann whoever did the repair on the fence plate did a great job, it must of been done properly with cast iron rods because you cant see the repair on the other side. Normally people use nickel rods or braze which sticks out like a sore thumb.
The blade flask is aluminium, and quite crude compared to the gen 4 ones, I was going to shine it up but I'm not so sure. It is quite distorted by the welding
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Re: Wadkin PK restoration

Postby wallace » 18 Jan 2022, 18:55

Running low on consumables, £100 for this lot. The sanding discs will last a while though, I've only used two so far.



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Anyone explain the pattern? Is it the cooling of the cast iron



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Taking the handwheels off is just a matter of drilling the peened end and wacking with a punch



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But wadkin thought it needed to be threaded and peened



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The main casting is nearly ready for some primer



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I was contemplating using some polyester spray filler but I think it might be too cold



The blade flask cover is very basic, wadkin changed to cast iron with a much more complicated casting then they changed to aluminium



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The brass cages look like they are supposed to be attached to the sliding table judging by corresponding holes, they werent attached , just floating around.



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The balls are kept in place by the brass being chiseled slightly



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At first I thought it was supposed to slot into the groove at the bottom, but its thicker and doesn't reach.



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Re: Wadkin PK restoration

Postby Trevanion » 18 Jan 2022, 20:00

wallace wrote:Anyone explain the pattern? Is it the cooling of the cast iron


That is an unusual one, I'm no metallurgist, but I wonder if it's got something to do with the way the mould was prepared? I know casting sand is typically tamped quite hard, but perhaps they used some kind of vibrating machine afterward to maybe try and compact any bits that would've been difficult conventionally around the casting pattern which resulted in the weird pattern you're showing?

I'd be tempted to DM East Coast Casting on Insta and ask them if they know what it is.
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Re: Wadkin PK restoration

Postby kirkpoore1 » 18 Jan 2022, 22:27

I believe the pattern is from scraping the surface flat. I believe that various patterns can be achieved with scraping as seen below (no, I don't know how to do it). Extreme flatness can be achieved. My understanding is that this table is within .0004" over it's width of about 4'. This is a Devlieg jigmill.

Devlieg jigmill table.jpg
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Re: Wadkin PK restoration

Postby Trevanion » 18 Jan 2022, 23:46

kirkpoore1 wrote:I believe the pattern is from scraping the surface flat. I believe that various patterns can be achieved with scraping as seen below (no, I don't know how to do it). Extreme flatness can be achieved.


I might be wrong, but I thought this was unmachined raw cast iron. It's hard to say from the photo :eusa-think:
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Re: Wadkin PK restoration

Postby Cabinetman » 19 Jan 2022, 00:00

My scant knowledge is dangerous, but I immediately thought that it was from scraping as well, back in the old days it was quite an art. Ian
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Re: Wadkin PK restoration

Postby kirkpoore1 » 19 Jan 2022, 05:33

Trevanion wrote:
kirkpoore1 wrote:I believe the pattern is from scraping the surface flat. I believe that various patterns can be achieved with scraping as seen below (no, I don't know how to do it). Extreme flatness can be achieved.


I might be wrong, but I thought this was unmachined raw cast iron. It's hard to say from the photo :eusa-think:


I agree, the photo could go either way. If it's smooth, though, I would say it's scraped.

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Re: Wadkin PK restoration

Postby wallace » 19 Jan 2022, 09:44

I dont think its a scraping affect, I've seen that on wadkin stuff in the past. The surface is not smooth, I think it is a planed surface.
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Re: Wadkin PK restoration

Postby Vann » 19 Jan 2022, 22:29

wallace wrote:...Taking the handwheels off is just a matter of drilling the peened end and wacking with a punch

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But wadkin thought it needed to be threaded and peened

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You may remember sending me a horn handle for my Wadkin LP recessor. The hole in the handwheel for that is also tapped (1/2" BSW).

wallace wrote:...Anyone explain the pattern? Is it the cooling of the cast iron

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You're looking at it all wrong. Rotate it.

W.jpg
(612.07 KiB)
You can see it's obviously 'W's for 'Wadkin' :eusa-whistle:

I'll get my coat...

Cheers, Vann.
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Re: Wadkin PK restoration

Postby Trevanion » 19 Jan 2022, 22:39

wallace wrote:I dont think its a scraping affect, I've seen that on wadkin stuff in the past. The surface is not smooth, I think it is a planed surface.


So it does appear to be machined? It's certainly an unusual pattern if it was caused when machining, an over dull tool that's chattering whilst planing wouldn't do that kind of pattern I don't think, possibly something to do with the actual planing machine itself being a bit ropey in its travel and giving out weird results?

I suppose it'll be one of life's many mysteries, like who actually shot JFK.
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Re: Wadkin PK restoration

Postby wallace » 23 Jan 2022, 16:46

More filler application



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I thought I'd give the spray filler a go. This stuff is literally liquid car filler with an activator. It goes on horribly and is a nightmare to clean the gun, apparently you need acetone which I never had.

There is nearly a litre on the these two parts, so you can imagine how thick it goes on.



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The fence plate cleaned up nice, you wouldn't think this has been broken and welded



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One strange thing is this machine was one from the first batch made and yet has a slider from a PJ but the fence says PK. I have done PK's which had a PJ fence.



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I normally take the wheels off the shaft but the tapered pin was solid so I stuck the whole thing in the lathe. to clean up.



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Cast iron is really hard to get a full on shine. It needs buffing on a mop next.



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Got some more supplies in. Someone mentioned those paint removal discs on my bandsaw thread so I thought I'd try them. I got some other ones that are like fine scotchbrite.

I also got some steel rod for new locating pins and a box of 5 wire wheels for the silly price of £21, I normally pay £10 for one wire wheel.



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Re: Wadkin PK restoration

Postby wallace » 26 Jan 2022, 18:15

To get a good result with the writing its best to flood the area with primer, obviously you can get more paint on if its flat.



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And then a big dollop of water drips from your mask



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The day after, I did manage to rescue it, had to sand and fill it then sprayed again



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Top coat



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Whilst the filler was drying I started on the handles, In the lathe slow speed and used the grinder with a flapper disc then sandpaper from 120 to 800 followed by a buff with red silverline compound



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Re: Wadkin PK restoration

Postby fiveeyes » 27 Jan 2022, 16:09

This is as good as it gets.
Thoroughly enjoying this. thanks Wallace
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Re: Wadkin PK restoration

Postby Mike G » 27 Jan 2022, 17:46

Lovely stuff Wallace, as always.
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