This specialised gear design features distinctive V shaped chevron tooth pattern. Quiet in operation compared to straight cut gear teeth.
Andre Citroen bought patent for this V shaped gear in Poland in 1900.
This shape is still used on the…
Historical records indicate that J. D. Balkwill was an itinerant preacher for the Bible Christians, a Methodist denomination heavily active in Devon and Cornwall during the 19th and early 20th centuries. [1]…