| 摘要 |
1,073,128. Mould flasks. GRAVE G.m.b.H. Nov. 17, 1965 [Nov. 28, 1964], No. 48786/65. Heading B3F. A double-walled moulded flask 1 is provided with inclined inner surfaces 1<SP>1</SP> and comprises. horizontally, movable members 2 for holding and releasing sand compressed in the flask. The members 2 are fluid actuated and are each guided for movement in respective side of the inner wall of the flask. The flask is provided with centring bushes or pins and the inner faces of the inner wall are polished. |
