| 摘要 |
981,263. Sliding door tracks. E. HILL ALDAM & CO. Ltd. Dec. 16, 1963 [Jan. 10, 1963], No. 1211/63. Heading E1J. A sliding door track 11 having transverse securing screw slots 12 and at least one outstanding web has a diagonally slotted cam plate 16 which bears against the web and whose slot 17 in conjunction with the slot 12 forms an opening for a supporting screw 10 such that vertical adjustment of the track is made by longitudinal sliding of the cam plate. The angle of the slot 17 is such that friction on the screw 10 and against the web or webs precludes movement of the track under its own weight when the screw is loose. |
