Craynerd builds Wilding's - Woodward's Gearless Clock

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raynerd:
Hi John
Yes, I`ve just taken a look on ebay and there are quite a selection for sale, including some auctions for a lot of say 3 or 4 different size clamps. I do have a couple, a very small one and then some really big ones, nothing inbetween.

Chris

raynerd:
I was reading about cutting the spring steel this morning and apparently you punch it out. So as soon as I got home this eveing I had a go. As per Wildings instructions, I folded over a strip of brass, marked out on both the template and the spring steel:

I made this punch but stupidly have rounded the edges so I`ve not ended up with a good clean cut. It worked really well and I did get a disk, but it has pressed the edge a little.

I then went on to make the top clamping bracket:

The whole lot suspends from the bracket I made in my last post. The plans call for 2BA studing but I just cut down a long bolt, turned down the ends and rounded them:

Cutting off two 7/8" brass disks 1/16" in thickness. I then went on to mill a flat on the top and tap one 10BA and the other drilled clearence

Both John Wilding and GadgetBuilder stress the importance of the spring steel being square to the brackets. Wilding suggests this method to lock it all down square:

And the final setup:

and now fitted with the invar pendulum rod.

Pendulum next....

sbwhart:
Good progress Chris keep the posts comming watching with interest.

Stew

raynerd:
Cheers Stew, the spring steel was tricky to work with and I`m not totally happy but to be honest, I pretty sure it is just asthetics as the bits that are a bit "iffy" in terms of the holes where the screws go through, are clamped. I might try and make another but it looks like it`ll do the job. It acts as a nice pendulum with just the rod attached so when I get the 4" x 2" steel bar on it, it should be good.

Thanks for watching and posting. I`m currently multitasking and have "the other Colin Thorne project undergo as well!!" :ddb:

Chris

raynerd:
Didn`t do any last night,... I bloody fell asleep.....fancy that!!! Grrrr

Got the pendulum up and, well, swinging tonight!

Hacked off a 4" (just over) length of 2" dia silver steel:

Drilled it through 6.5 mm to make an oversize hole for the pendulum rod

I re-drilled the top 8mm to a depth of 10mm and then I turned up some bushes out of brass for the ends with a 6mm bore to accept the pendulum rod

The hole pendulum unit was assembled:

And then a picture for those of you that don`t know what a pendulum swinging looks like :lol: Hey, I had to include it!! Photo is rubish but here you go.. in action:

I`m going to need a quick stand so I can easily remove the brass back plate from the wall and then place it back on to test. I don`t know if there is any way of doing this without the faff of unscrewing it each time.

So a bit of time tidying out my workshop tomorrow and then I`ll make a start on the count wheel. Then I`ll move back to the pendulum pawl brackets and then hopefully I should be able to get a minute timed out by the pendulum dragging the count wheel forward....obviously at that stage the clock will stop after a few mins because it`ll get no impulse but I`ll be able to check the general mechanism is working!

Chris

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