Crank handle 1 is rigidly attached to spur gear 2 which rotates about axis B of housing 4 and meshes with spur gear 3. When c rank handle 1 is turned, gear 2 rolls around gear 3 which is keyed to a shaft rigidly coupled to the drive shaft of the machine being tested. At this, housing 4 and sector a, rigidly attached to the housing, turn about axis A, pulling cable 5 which is attached to measuring spring 6. The tension in spring 6 is registered on rotating drum 7.
$3565$CFL,M$