| 摘要 |
<p>744,120. Spray-producers. ETABLISSEMENTS ULYSSE FABRE. Jan. 14, 1954, No. 1076/54. Class 69 (3). A sprayer 6 is supplied with liquid from either of two reservoirs 1, 2 by a pump 10 which draws the liquid through a duct 5 via valve controlled outlet pipes 3, 4. Excess liquid is returned to its respective reservoir via a pipe 13 and valve-controlled return pipes 14, 15. The four valves 18, 20 and 19, 21 are simultaneously operated so that either of the reservoirs is connected to the sprayer and excess liquid is returned to that reservoir.</p> |
