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 5925-01-007-5926
NSN 7035-01-468-4312
NSN 6220-01-062-2077
NSN 5985-01-618-7498
NSN 5930-00-660-3950
NSN 5835-01-602-0311
NSN 6220-01-083-4580
NSN 6105-01-308-2212
NSN 5915-01-340-3118
NSN 5920-00-549-2203
NSN 5990-00-835-5211
NSN 5910-01-563-0057