Adjustable Roller Frame which comprises a Frame, a First Extension Arm with a First and a Second Member, a First set of cams with a First Lever has a First Cam surface of the Cam, a First Adjusting device of ForceTo vary the amount of Force applied to the first surface of the first Cam Member when the first Cam Lever adjusts in the latched position and Method;

摘要

Adjustable Roller Frame which comprises a Frame, a First Extension Arm with a First and a Second Member, a First set of cams with a First Lever has a First Cam surface of the Cam, a First Adjusting device of ForceTo vary the amount of Force applied to the first surface of the first Cam Member when the first Cam Lever adjusts in the latched position and Method;