| 摘要 |
<p>The plastics wedge is driven between layers of building blocks, e.g. when lining up erection of cavity wall construction. Wedge has recesses, enabling easy breaking off, using a hammer blow. The tapered wedge has two rectangular surfaces (1,2) forming a sharp angle, e.g. at knife shaped end (7). Wedge has two identical parallel positioned recesses (8) providing a protruded part when lining up building blocks. Protruding part breaks off, when hammer blow is applied.</p> |
