The screw press, shown in Fig. 8.24, is used in book binding. The screw bas a mean radius of 10 mm and its pitch is 5 mm. The static coefficient of friction between the threads is 0.18. If a clamping...

The screw press, shown in Fig. 8.24, is used in book binding. The screw bas a mean radius of 10 mm and its pitch is 5 mm. The static coefficient of friction between the threads is 0.18. If a clamping force of 1000 N is applied to the book, determine (1) The torque that was applied to the handle of the press. (2) The torque required to loosen the press.