Learning process:
Years ago I bought a nice Vernier caliper made by Catic in China. Made of a very hard stainless steel. As far as I can tell it matches-up to the graph of figure 3 on this webpage:
I love old classic woodworking tools such as handplanes and chisels and saws. I bought an antique plane blade and cap-iron assembly ($8, yes tapered and laminated) and decided to measure the blade's width. I am sure the Ohio Tool Co. meant for this blade to be 2 1/2 inches but the reading says less* than 2" and 3/40's plus 17. The 17 is the closest match-up on the "-Vernier scale, does this mean that the measurement is 2.417 inches? Exact scale in text:
2" + 2(8/40) + 4(8/40) (=16/40) + less than 3/40 and 17 is match-up on the "-Vernier. or 2"-2-4-less than 3/40- 17 = 2.417"?
Metric: 6.2cm + less than 3mm m-Vernier match-up is 31 = 6.231cm, or 62.31 mm, 6.321? (Metric seems simpler! Big discovery!)
Metric converter for free download:
62.31mm = 2.45314960629921"
6.231cm = 2.45314960629921"6.2.31cm = 2.44094488188976" (defunct and kaput)
How do you like that beeswax, ay? Or did I get my decimels in the wrong places?
Many thanks all, Alex