Method and apparatus for automatically adjusting the crown height for a slip forming paver
US5101360A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/48
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for automatically slip forming concrete having a movable frame for moving in a first direction over concrete to be formed into a desired shape. The movable frame has a longitudinal centerline generally aligned with or parallel to the first direction. A crown forming structure is attached to the frame for selectively producing a desired crown on the concrete being so formed. The crown forming structure includes a left segment pivotally attached on an inner portion thereof, along an axis generally near to and aligned with or parallel to the longitudinal centerline of the movable frame. The crown forming structure also includes a right segment pivotally attached on an inner portion thereof, along an axis generally near to and aligned with or parallel to the longitudinal centerline of the movable frame. A transition adjusting device is provided for selectively raising and lowering said inner ends of the right and left segments for controlling the crown forming structure. A computer control is also provided for automatically adjusting the position of the transition adjusting device for causing a smooth transition between two crown heights at two respective positions of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.