Petty's Celebrated - shear steel butcher's knife

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kwackster
Posts: 330
Joined: Mon May 15, 2017 8:07 pm

Petty's Celebrated - shear steel butcher's knife

Post by kwackster »

Another thrift shop find is this old butcher's knife, made by John Petty & Sons Ltd in Sheffield.
The blade is most likely shear steel, and the plan is to make the knife at least functional again.

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(more pics later)
kwackster
Posts: 330
Joined: Mon May 15, 2017 8:07 pm

Re: Petty's Celebrated - shear steel butcher's knife

Post by kwackster »

Handle disassembled:

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Active (red) rust removal by using an electrolytical process:

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Afterwards:

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whippersnapper
Posts: 8044
Joined: Sat Oct 16, 2004 12:39 pm
Location: Michigan

Re: Petty's Celebrated - shear steel butcher's knife

Post by whippersnapper »

I can't wait to see how it comes out.

It is getting super hard to find good carbon steel cutlery at thrift shops where I am from.
“When tyranny becomes law rebellion becomes duty”
kwackster
Posts: 330
Joined: Mon May 15, 2017 8:07 pm

Re: Petty's Celebrated - shear steel butcher's knife

Post by kwackster »

Same here, most of it seems to be made in China stainless steel junk.
Now there are 3 of these thrift shops within walking distance of my house (and a few more each at a 10 minute drive by car), so when i go looking for certain classical CD's with quality recordings i also take a peek at the buckets with kitchen knives.
And sometimes i'm lucky :-)

This is how the blade looks now:

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kwackster
Posts: 330
Joined: Mon May 15, 2017 8:07 pm

Re: Petty's Celebrated - shear steel butcher's knife

Post by kwackster »

After hand regrinding up to 400 grit wet & dry. (burr is still attached)
To optimize cutting performance the blade now has a full convex shape with long swedge & an edge angle at ~20 degrees inclusive.

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kwackster
Posts: 330
Joined: Mon May 15, 2017 8:07 pm

Re: Petty's Celebrated - shear steel butcher's knife

Post by kwackster »

Tidbit of info: It seems that the knife was made before 1888, as in that year the trademark was changed by removing the line under the barrel.
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whippersnapper
Posts: 8044
Joined: Sat Oct 16, 2004 12:39 pm
Location: Michigan

Re: Petty's Celebrated - shear steel butcher's knife

Post by whippersnapper »

Nice!
“When tyranny becomes law rebellion becomes duty”
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