Indexing attachment for a dividing head
US4047453A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Mar 10, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An indexing attachment is disclosed that is adapted for use with a Van Norman dividing head. The Van Norman dividing head has a rotatable chuck for indexing a workpiece at six minute intervals. The inventive attachment is placed upon the dividing plate of the head and increases the indexing capability of the dividing head, such that 1 minute intervals of rotation are obtained. The attachment comprises a disc having a cylindrical stem extending from a mid-portion thereof. The stem is placed in any one of several holes disposed in the dividing plate. The disc of the attachment contains apertures arranged in a spiral pattern on its face. The apertures receive the retractable pin of the indexing arm of the head, in place of the holes of the dividing plate. The spiral pattern of the apertures of the attachment subdivide the interval spacing between successive holes of the dividing plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.