Book core gauge and positioning guide for casing book cores
US4570351A · kind A · utility
25Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1984 |
| Grant date | Feb 18, 1986 |
| Priority date | — |
| Expiry date | Aug 24, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D13/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Cases (covers) for binding books are made in a series of sizes which differ from each other in the width of the spine and each size accommodates a range of book cores. The gauge of the present invention indicates which size case is proper and further measures the precise thickness of the core. Simultaneously, the gauge moves an edge guide of a positioning guide so that the core is located accurately centered relative to the spine area of the case and the case is also located relative to the guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.