| 摘要 |
<p>1277860 Wedges and shims J A R CAILLAS 19 April 1971 [2 Feb 1970] 20781/71 Heading F2K A wedge or shim of adjustable thickness comprises removable sheets 1, 2 with or without a solid core 3. The sheets 1 and 2 are of thickness such that the thickness of the sheets 2 is a multiple of that of the sheets 1. The different thicknesses are indicated by different colouring or markings. The sheets may be metal such as steel, brass, aluminium or stainless steel and are interconnected so as to be readily detachably by gluing, welding or other means.</p> |
