| 摘要 |
The cylinder 1 of an arrangement for closing a presser lid 3 on a mould which results in metal being forced from a cup above the mould cavity into the mould cavity (Figure 2 not shown) has a vent 14 to allow for rapid downward movement of the piston rod 2 and the lid 3. The cylinder is two-way. Small articles, eg dental inlays, can be cast. Compressed air forces the rod downwards and then acts down a bore of the rod 2 to move the metal. <IMAGE> |
