| 摘要 |
497,191. Sliding-door hangers. GRANT, C. M. March 26, 1938, No. 9363. [Class 20 (iii)] Sliding doors are adjustably connected to slide-blocks 8 bv slots 5 in vertical extensions on the door leaves, preferably at the corners, and set-screws 6 bearing on the blocks. The blocks are secured in slots 5 by plates 11 and screws, and have rollers 9 engaging the tracks. The rollers mav bear on one limb of a channel in which the extension 8a of the roller frame slides. |
