Device for straightening articles such as letters and similar flat transported articles
US4995504A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1987 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Nov 4, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H9/163
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
As a device for straightening of letters and similar flat transported articles upon passage from a free wheeling section with a bottom conveyor belt to a cover belt section, whereby the letters are transported upright on a lengthwise edge and generally at the transition to the cover belt section are shifted in the vertical direction between the side belts of the free wheeling section by running against the bottom belt, a guide plate is provided at either side in the letter displacement zone, the plate has a step extending parallel in the direction of transport of the side belts and has a width equalling the thickness of a side belt, for the purpose of avoiding tearing of the letter flaps. The guide plates extend to the upper edge of the side belts and, by the flutter-free movement of the side belts, achieve a smooth sliding of the letters between the side belts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.