Apparatus for storing and randomly accessing planar film records
US4273427A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1978 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Jul 10, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/116
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system (10) is disclosed for storing and selectively retrieving planar film records, such as microfiche (25). The microfiche are stored in a carousel assembly (12) and are retrieved from the carousel by a positioning assembly (18). The carousel assembly (12) includes several carousels (22, 24), each defined by two slot plates (26, 30; 28, 32). The slot plates have a plurality of slots (37) formed therein, and the microfiche are held by their edges in these slots. Each microfiche is stored in a known slot location in the carousel, and is retrieved through reference to this slot location. The positioning assembly (18) moves an extractor head (16) in two dimensions for retrieval and reading of the microfiche. Movement in both dimensions is entirely accomplished by binary linear actuators (FIG. 6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.