SalemRule
Cast Iron
- Joined
- Jul 26, 2018
This is an unusual Micrometer, for sure.
The small knob advances the "ZERO LINE" on the main barrel in .0001" increments, up to a full .001 .
I've read the Patent, and inspected the action, but it certainly seems to be a "Solution in search of a Problem".
At any rate the Patent stamped onto the Frame 1,629,406 granted to J.W. Parker in 1927, is just one of the endless minor "improvements" that everyone and their second cousin seemed to be fixated on for so many years.
But the "PATENT PENDING" 1,840,276, also granted to J.W. Parker in 1932, is what makes this model so curious.
Anyone have a Catalog Page that illustrates this ? I'll bet it was very expensive. And being introduced in the midst of the Great Depression would not have spurred sales.
The small knob advances the "ZERO LINE" on the main barrel in .0001" increments, up to a full .001 .
I've read the Patent, and inspected the action, but it certainly seems to be a "Solution in search of a Problem".
At any rate the Patent stamped onto the Frame 1,629,406 granted to J.W. Parker in 1927, is just one of the endless minor "improvements" that everyone and their second cousin seemed to be fixated on for so many years.
But the "PATENT PENDING" 1,840,276, also granted to J.W. Parker in 1932, is what makes this model so curious.
Anyone have a Catalog Page that illustrates this ? I'll bet it was very expensive. And being introduced in the midst of the Great Depression would not have spurred sales.