| 摘要 |
775,752. Step-by-step conveyers. THOMPSON (TRIUMPH STOKER), Ltd., J. Dec. 15, 1952 [Dec. 14, 1951], No. 29375/51. Class 78 (1). A scraper conveyer consists of a massive bar 22 which is pivotally connected by a pair of inclined rods 20 to parallel driving chains 7. The vertical and lower faces of the bars are slightly concave. More than one bar may be provided and the end one may travel over an inclined surface 1a, Fig. 5. |
