An instrument consisting of two branches or legs which are pointed at both ends and joined by a sliding pivot, the position of which may be so adjusted that the ratio of the distance between one pair of points and the pivot and the distance between the other pair of points and the pivot may be varied. This combination produces the variable ratios. Used for making proportional transfer of measurements.
Classification: Drawing, marking-out or mathematical calculating instruments, nesoi
NSN 6145-01-249-4329
NSN 6645-01-125-3648
NSN 5965-01-279-8073
NSN 7035-01-083-0282
NSN 5960-00-936-7931
NSN 7035-01-090-3369
NSN 6105-01-447-2984
NSN 6220-01-553-8836
NSN 5835-01-561-2959
NSN 5950-01-253-8574
NSN 5835-00-779-2836
NSN 5895-01-568-4126