Originally Posted by
Tomi Rosso
And have Stanley cutters, where hole is at opposite direction than cutting edge? How about Sargents? I have only one Sargent VBM 415 and in that hole is at upper end, not cutting edges end. Is that something do with plane age? Older versus newer? Or does other manufactures have different way of made cutters? My Union 4 have also hole like my Sargent.
5A08DD7A-94CF-4C6F-8DDB-DE1D783A33D0.jpg
Union Mfg. Co. spun off their plane making in ~1917. After that the blades were marked Union Plane Co. So the blade in the image is 1917 or earlier. The lever cap may be a replacement. Not sure when Union started to emboss their name on lever caps.
Stanley patented the large hole at the bottom of the blade in April of 1892. My recollection is they lost a patent fight in a court battle.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)