Petty's Celebrated - shear steel butcher's knife

[kwakster]

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.





(more pics later)

[kwakster]

(more pics later)

[kwakster]

Handle disassembled:



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



Afterwards:

[kwakster]

This is how the blade looks now:

[SteveC]

Good job cleaning it up   

How thin is it where the rust ate away the handle ? 

[zoidberg]

Great photos.   

[kwakster]

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.

[kwakster]

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.