Mounting block for mounting a lens in a lens trimming and bevelling machine
US4118898A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | May 11, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B9/146
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mounting block for mounting a lens on a trimming and bevelling machine is made of flexible plastic material and adapted to be fixed onto one lens surface by means of a thin film of adhesive material; said block comprises orienting and driving means which cooperate with complementary means mounted on the spindle of the machine. The mounting block is formed with a flexible circular web portion having a conical lower surface which constitutes the lens-contacting surface, and which is provided with a recess in its central portion; the web portion is provided with at least one outwardly extending gripping tab adapted to facilitate the removal of the block from the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.