Method and apparatus for the manufacture of mirrors |
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| 申请号 | US3608179D | 申请日 | 1969-01-24 | 公开(公告)号 | US3608179A | 公开(公告)日 | 1971-09-28 |
| 申请人 | BRITISH AIRCRAFT CORP LTD; | 发明人 | JEFFREE HERBERT; BENZIES GEORGE Y; | ||||
| 摘要 | A METHOD AND APPARATUS ARE DESCRIBED FOR PRODUCING MIRRORS WITH A REFLECTING SURFACE OF A THIN FLEXIBLE REFLECTING MATERIAL IN WHICH A SHEET OF THE REFLECTING MATERIAL IS STRETCHED OVER A BACKING MEMBER HAVING A RAISED PERIPHERAL RIDGE BY GRIPPING AN OUTER ZONE OF THE SHEET AND DRAWING IT DOWN AROUND THE BACKING MEMBER, AND AN OUTER RING IS SUBSEQUENTLY FITTED OVER THE PERIPHERAL RIDGE OF THE BACKING MEMBER SO AS TO TRAP THE SHEET BETWEEN THE OUTER RING AND THE BACKING MEMBER. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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