Springs and Sprungs.

Advice and guidance on repair and restoration techniques.
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badpenny
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Springs and Sprungs.

Post by badpenny »

The time comes when it occurs to you that correct springs are critical to the smooth working of your machines.
Then it's not long before you also realise that “Any old spring fitted any old way” is a hit and miss affair.
We often see questions on here “Where can I get the proper springs for my ….”

And we point out you can send lots of dosh to Americaland, then wait bucket loads of time for a small envelope to turn up. Often you'll also see a miserable reply from yours truly here pointing out you can buy a box of 200 assorted springs (compression and expansion) all diameters and lengths. About £8 from Machine Mart or from China via eBay.

Wherever you source them from, it's guaranteed that at some point you're going to have to adjust one, if only to get the length right or alter the loop on the end.

Here is how to construct perfect fittings/loops to the ends while also making your springs adjustable in length for future tinkering ….

For effective Spring Smithing I recommend gathering yourself a kit consisting of: -
Assorted Springs X 200 £8.00
Assorted Springs X 200 £8.00


Assorted Split Pins £5.00
Assorted Split Pins £5.00


Wire Cutters £6.00
Wire Cutters £6.00


Long Nose Pliers £6.00
Long Nose Pliers £6.00
Long nose pliers.jpg (3 KiB) Viewed 1360 times


Dental Picks £5.00
Dental Picks £5.00

If you've had to adjust a spring's length, you'll end up with one that is missing at least one of its end loops, perhaps both. The loops you'll manufacture will add length to the spring and will also retract into the spring making it possible to shorten the stretch for adjustment.

Choose a suitable split pin and cut the head off leaving an inch length on its legs.
Now bend the legs 90 degrees away from each other. Opening up the spiral at the end of the spring feed one leg into the wall of the spring and twist until the other leg also winds itself on. Now it's secure use your long nose pliers to bend the legs up, thus trapping it in place. The more you turn it the further in it'll wind and the shorter will be the reach and of course vice versa.
New and adjustable end loops in place
New and adjustable end loops in place

The Dental Picks will allow you to reach into the middle of the machine and pull springs into place and attach the ends.
It's not so complicated as I've made it sound, and with little practice you'll soon be knocking them out.
grains
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Re: Springs and Sprungs.

Post by grains »

Great advice badpenny, very helpful indeed - Thank you
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watlingman
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Re: Springs and Sprungs.

Post by watlingman »

Those Clarke springs are OK for simple jobs but not good for 3 reel mechanisms. They don't have enough longevity in them and stay stretched almost! '!'
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badpenny
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Re: Springs and Sprungs.

Post by badpenny »

Agreed David, there are wishy washy ones included for those needing to adjust their nail scissors or renovate paperclips.
If you're looking to change anything beefy like a clock spring or a kicker's then you'll need substantial replacements.
Otherwise I've done ok.
Like most I've never thrown anything anyway and the point I'm making most is how to effectively adjust and reuse.
After all David we haven't all got our own high tech engineering company ;-)

In the 60s when I would turn up to do my Summer stint at Uncle Gordon's arcade in Paignton, I knew that every machine he was operating would contain rubber bands somewhere inside, and would have been like that since Easter. My first week would be spent nicking ball point pens in order to rob out the springs. I soon learnt they would fit pay out fingers, and let's face it if they weren't strong enough to actuate a win, Uncle Gordon wasn't going to lose any sleep.

BP !SAINT!
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dickywink
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Re: Springs and Sprungs.

Post by dickywink »

I was lucky enough to buy on Ebay some 40 year old spring kits from RS... They are really good and still turn up on Ebay occasionally... Do and save a search for RS spring kits and you will be surprised. :)

all the best ..... dicky
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badpenny
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Re: Springs and Sprungs.

Post by badpenny »

I did search and it came up with drum brakes and shock absorbers.
I think it's identifying RS as in Ford RS?
You said made by RS, who are they?

BP
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badpenny
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Re: Springs and Sprungs.

Post by badpenny »

Belay that last one, I found this https://uk.rs-online.com/web/p/spring-kits/0684428
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arrgee
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Re: Springs and Sprungs.

Post by arrgee »

As always a sage snippet of useful and creative information BP regarding adjustable end loops to springs. !SMARTY!
I am sure that the dental picks will also be very useful in readjusting my incisors as the gleaming tooth enamel gives way under the high velocity impact from the spring as I fail to locate it correctly on its holding lug.
o0O0o
tallstory
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Re: Springs and Sprungs.

Post by tallstory »

badpenny wrote: Mon Dec 06, 2021 2:20 pm I did search and it came up with drum brakes and shock absorbers.
I think it's identifying RS as in Ford RS?
You said made by RS, who are they?

BP
Old folks in the electrical trade, like me, remember RS as Radio Spares and that is just what they sold. They do much more now and have moved up market and won't call themselves Radio Spares any more - just RS Components. They are really a distributor rather than a manufacturer.
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