Pinking Shears


P

polygonum

Today's challenge is to sharpen two pairs of pinking shears that are a
bit on the blunt side.

Much googling suggested:

Cut some alumnium foil with them.

Cut some sandpaper with them.

Use a Twice as sharp sharpening machine - or a Tormek.

Send them away to a professional sharpener.

Buy new ones!

But I am not convinced by any of them - either that they work, that even
if the foil/sandpaper work it isn't only a temporary improvement, that
they are worth it (haven't got a suitable machine and certainly can't
afford one for this purpose only). And I have a memory that it was
discussed here a while back - not that I can find it.
 
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M

meow2222

Today's challenge is to sharpen two pairs of pinking shears that are a
bit on the blunt side.
Much googling suggested:
Cut some alumnium foil with them.
total waste of time
Cut some sandpaper with them.
good way to blunt them further
Use a Twice as sharp sharpening machine - or a Tormek.
Send them away to a professional sharpener.
Buy new ones!
But I am not convinced by any of them - either that they work, that even
if the foil/sandpaper work it isn't only a temporary improvement, that
they are worth it (haven't got a suitable machine and certainly can't
afford one for this purpose only). And I have a memory that it was
discussed here a while back - not that I can find it.
I cant see any method that doesnt take a huge amount of time.


NT
 
B

brass monkey

polygonum said:
Today's challenge is to sharpen two pairs of pinking shears that are a bit
on the blunt side.

Much googling suggested:

Cut some alumnium foil with them.

Cut some sandpaper with them.

Use a Twice as sharp sharpening machine - or a Tormek.

Send them away to a professional sharpener.

Buy new ones!

But I am not convinced by any of them - either that they work, that even
if the foil/sandpaper work it isn't only a temporary improvement, that
they are worth it (haven't got a suitable machine and certainly can't
afford one for this purpose only). And I have a memory that it was
discussed here a while back - not that I can find it.
ebay
 
T

The Natural Philosopher

total waste of time


good way to blunt them further





I cant see any method that doesnt take a huge amount of time.
I am not sure that grinding the edges at right angles to the serrations
wouldn't work.

Viz.


--
Ineptocracy

(in-ep-toc’-ra-cy) – a system of government where the least capable to
lead are elected by the least capable of producing, and where the
members of society least likely to sustain themselves or succeed, are
rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.
 
B

Brian Gaff

Specially seeing as Create and craft seem to have them on offer every time I
pass the channel.

Brian
 
P

polygonum

The first thing I would check is whether the joint is tight. No amount
of sharpening will make them work if the blades don't meet properly.

Colin Bignell
Absolutely - first thing I checked. Seems fine. The teeh seem to mesh
well and it really does seem like both pairs simply need a litle
sharpening - they work but not as well as thy should.

Thanks
 
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P

polygonum

I am not sure that grinding the edges at right angles to the serrations
wouldn't work.

Viz.

Yes - saw that but have no machine! Am very dubious of my ability to
emulate that using, for example, some diamond sharpening tools without
totally screwing the shears.
 
A

Andrew Gabriel

Today's challenge is to sharpen two pairs of pinking shears that are a
bit on the blunt side.

Much googling suggested:

Cut some alumnium foil with them.

Cut some sandpaper with them.

Use a Twice as sharp sharpening machine - or a Tormek.

Send them away to a professional sharpener.

Buy new ones!

But I am not convinced by any of them - either that they work, that even
if the foil/sandpaper work it isn't only a temporary improvement, that
they are worth it (haven't got a suitable machine and certainly can't
afford one for this purpose only). And I have a memory that it was
discussed here a while back - not that I can find it.
My grandfather owned a clothing factory, and I saw him sharpening
them a couple of times, but I was too young to pay enough attention.
It involved disassembly and sharpening each jaw on a india oil stone.
We still have one pair somewhere, but I suspect they are a very
expensive professional pair, as they are fully disassemblable,
including removing the separate jaws from the frame. Before the
clothes factory (and long before I was born), he owned a hair
dresser, and I would guess he was well into resharpening the
scissors and razers there too.

He was very much in to very sharp cutting implements. The original
cutting table in the factory used something like a carving knife to
cut the patterns through many layers of fabric all at once, using
knifes which had to be extremely sharp, and frequently resharpened.
By the time I was old enough to remember, this had been replaced by
an electric knife suspended from the ceiling.

His knife sharpening was quite legendary when it came to carving
up a roast. He would sharpen the carving knifes on a steel, but
he would finish them off, or retone them, by sharpening two knive
blades against each other (which I presume is what he did with the
cutting table knives), and I wish I'd paid attention to how he did
that. The only difficulty was if someone else then carved the meat,
as you carved straight through the bone before you realised you'd
hit it.
 
P

polygonum

My grandfather owned a clothing factory, and I saw him sharpening
them a couple of times, but I was too young to pay enough attention.
It involved disassembly and sharpening each jaw on a india oil stone.
We still have one pair somewhere, but I suspect they are a very
expensive professional pair, as they are fully disassemblable,
including removing the separate jaws from the frame. Before the
clothes factory (and long before I was born), he owned a hair
dresser, and I would guess he was well into resharpening the
scissors and razers there too.

He was very much in to very sharp cutting implements. The original
cutting table in the factory used something like a carving knife to
cut the patterns through many layers of fabric all at once, using
knifes which had to be extremely sharp, and frequently resharpened.
By the time I was old enough to remember, this had been replaced by
an electric knife suspended from the ceiling.

His knife sharpening was quite legendary when it came to carving
up a roast. He would sharpen the carving knifes on a steel, but
he would finish them off, or retone them, by sharpening two knive
blades against each other (which I presume is what he did with the
cutting table knives), and I wish I'd paid attention to how he did
that. The only difficulty was if someone else then carved the meat,
as you carved straight through the bone before you realised you'd
hit it.
Have seen a very few butchers do that knife-against-knife sharpening -
if I did it, I'd end up with two blunted knives. :-(

Unfortunately, while these are perfecty decent shears, they are
certainly not at the end of the scale you wrote about! Quite sure they
do not disassemble.

Shame we all managed not to pay sufficient attention to loads of things
where later we wished that we had.
 
T

The Natural Philosopher

polygonum said:
Have seen a very few butchers do that knife-against-knife sharpening -
if I did it, I'd end up with two blunted knives. :-(

Unfortunately, while these are perfecty decent shears, they are
certainly not at the end of the scale you wrote about! Quite sure they
do not disassemble.

Shame we all managed not to pay sufficient attention to loads of things
where later we wished that we had.
I think even if you can't arrange for a grinding wheel and a mounting, a
diamond studded 'steel' of the sort used to sharpen knives and a steady
hand, should be able to do the job on a blade clamped in a vice.

Essentially the issue is to remove the rounding in the serration tips.
And the tip in the video of using a felt pen to black the surface, and
then honing back to overall fresh metal should work.



--
Ineptocracy

(in-ep-toc’-ra-cy) – a system of government where the least capable to
lead are elected by the least capable of producing, and where the
members of society least likely to sustain themselves or succeed, are
rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.
 
G

Grimly Curmudgeon

Shame we all managed not to pay sufficient attention to loads of things
where later we wished that we had.
<Only Fools and Horses>
"It's a times like this I wish I'd listened to what my Grandad told
me."

"Oh, what was that, then?"

"Dunno; I never listened, did I?"
 
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P

polygonum

On 16/10/2012 11:42, The Natural Philosopher wrote:
....

Not everybody has a steady hand. I've never made pinking shears, but was
involved in a factory that made scissors. There, it was very important
to use the right grit abrasive for sharpening. The cutting edge needed
very fine serrations to work best; too fine a finish impaired the
quality of the cut, while too coarse a cut caused them to catch on soft
materials. Unfortunately, decades later, I don't recall what grit we
used. Our test was to make a clean cut vertically up a piece of
free-hanging open weave bandage.

Colin Bignell
That point was also made on one of the sites I visisted in my quest. I
think they said 800 grit was the finest they use.

I have now tried to do the diamond approach and it made a considerable
difference to one pair, but only slight to the other. In both cases it
has helped reveal beyond doubt that there is a small bit of the blade
that is plain wrong! Nearest the throat is fine. The far end is OK (and
that is what improved very much from my sharpening). But at about two
thirds along there seem to be a couple of teeth that do not mesh
properly and hence do not cut well.

I might try some more, but think that a new pair might be in order.
Anyone know of Ernest Wright?

http://www.ernestwright.co.uk/catalogue/browse.aspx?productId=317
 
P

polygonum

100+ years making scissors in Sheffield. WTF do you have ANY doubts!
All too many companies have been taken over and quality evaporated. I
appreciate that they might have been excellent 10, 50, 100 years ago but
what I care about is the shears I might buy today.
 
M

Martin Bonner

<Only Fools and Horses>

"It's a times like this I wish I'd listened to what my Grandad told
me."

"Oh, what was that, then?"

"Dunno; I never listened, did I?"
Douglas Adams used the same joke in Hitchhikers Guide to the Universe.
Wonder which came first.
 
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G

Grimly Curmudgeon

Douglas Adams used the same joke in Hitchhikers Guide to the Universe.
Wonder which came first.
The joke's been around for decades, long before DA was born.
 

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