| 摘要 |
<p>A cylindrical carrier 1 is covered by a length of rope 3 which is helically close-wound between end cheeks 2a, 2b. A backing plate 4 for attachment to a wall has two support walls 6a and 6b extending from its front face, and the walls have opposed recesses 9 and 10 to receive the end cheeks 2a, 2b. The upper wall 6a receives a pin 12 secured to a knob 13, and the pin is received in a corresponding hole in the upper end cheek 2a. The pin 12 normally prevents the carrier 1 from rotating, but provision is also made for the carrier to be rotated to ensure even wear, and for the carrier to be removed for replacement. <IMAGE></p> |
