Foundry flask |
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| 申请号 | US3766970D | 申请日 | 1971-11-01 | 公开(公告)号 | US3766970A | 公开(公告)日 | 1973-10-23 |
| 申请人 | SHERWIN WILLIAMS CO; | 发明人 | HATCH E; | ||||
| 摘要 | A foundry flask which may find utility in machines which produce flaskless molds includes four walls with vertically extending pins interconnecting the walls at diagonally opposite corners, such pins including a tapered portion cooperating with tapered bushings on one of the adjoining walls so that vertical movement of the pins will separate the tapered portion and bushing, permitting resilient spacers to separate adjoining walls to facilitate removal of a mold from the flask. | ||||||
| 权利要求 | 1. A flask for producing foundry molds comprising four walls, vertically extending pins interconnecting such walls at diagonally opposite corners, means responsive to vertical movement of said pins to open said flask to facilitate stripping of the mold therefrom, said pins including a tapered portion cooperating with a tapered bushing on one of the adjoining walls, and spring means operative axially to urge said tapered portion into said tapered bushing. 2. A flask as set forth in claim 1 including sprIng means responsive to the separation of said tapered portion and said tapered bushing to separate adjoining walls. 3. A flask as set forth in claim 2 wherein said last mentioned means comprises resilient spacers between adjoining walls at said pins. |
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| 说明书全文 | |||||||
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