| 摘要 |
904,152. Endless conveyers. STEVENS Inc., FREDERIC. B. May 10, 1960 [May 15, 1959], No. 16528/60. Class 78 (1). An endless conveyer for moving work-pieces through a succession of treatment tanks 14, 16 of the kind in which the work-pieces are carried by containers 40 supported by parallelogram links 36, 42 which are pivoted to supports 26 on an endless chain 32, and which are moved to lower and raise the containers by the engagement of a roller 46 with a cam rail 50, has auxiliary tracks 62 with which rollers 64 are selectively engageable to cause predetermined containers to by-pass certain of the tanks. Each support 26 is provided with members 92 which may be manually pre-set to operate a selected one of a series of switches 98 which, when operated, causes an associated ram 82 to move a lift pad 72 to the position shown in Fig. 5, where it increases the lift of the adjacent part of cam rail 50 to cause the roller 64 on the selected carrier to engage the adjacent rail 62 and thereby retains the container out of the adjacent tank or tanks. A lowering pad (not shown) similar to pad 72 is automatically extended into the path of roller 46 at the point where roller 64 leaves rail 62. The apparatus is stated to be suitable for use in an electroplating or anodizing plant. |
