| 摘要 |
<p>1,156,164. Grinding. ROBERTSON RESEARCH CO. Ltd. 1 Sept., 1967 [3 Sept., 1966], No. 39490/66. Heading B3D. [Also in Division B5] Lubricating or cooling fluid is fed to a tool such as a circular saw blade 6, band saw or grinding wheel by a tubular nozzle 1 which is slotted for straddling at least part of the tool and provided with baffles 2, 3 for directing the fluid into the slot in a manner so as to engulf that part of the tool.</p> |
