| 摘要 |
1,077,142. Making bearings. PHILIPS' GLOEILAMPEN FABRIEKEN N.V. Sept. 24, 1964 [Sept. 27, 1963], No. 38957/64. Heading B3A. [Also in Division F2] A fluid thrust bearing has one of its bearing surfaces formed with regularly distributed identical shallow grooves (4), Figs. 1 and 2 (not shown), the centre-line of each groove having a spiral-shape and the grooves being formed by fixing an apertured foil (2) to a base-plate (1). The foil (2) may be made of metal and may be soldered to the base-plate, altematively, the foil (2) may be made of synthetic plastics material and may be adhered to the base-plate. The apertures in the foil may be milled, punched or produced by a photo-etching process, for example. In soldering the foil (2) to the baseplate (1), solder is deposited on the foil and is wiped with a cloth so as to form a layer of solder having a thickness of about 0À5 microns; the foil is then pressed against the base-plate and heated. |
