Paper roll web splicing
US4190475A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | May 16, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1712
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elongated transverse paper preparation head is provided which has multiple sides. One side is exposed to the operator and the other two back sides form, with suitable guide members, a guide path for threading alternate leading edges of fresh web to the splicing nip area. A spring bar holds the fresh web to an idler roll upstream of the nip. The fresh web end section is laid across the exposed head side to which a vacuum is applied, and a double faced adhesive tape is applied along the edge portion's exposed face. The edge is then cut off via a knife slot. The fresh web end section is peeled from the exposed vacuumized side of the head and is manually fed along the guide path. Positive air pressure is applied between the said head back side and the web to cause the web and the adhesive portion to be forced away from the head to eliminate interference therebetween. The splicer nip roll axes are disposed in a common plane which has a bridging portion at the nip. The nip roll for the fresh web is adapted to be driven and to have vacuum applied to its surface during said preparation. The construction is such that the fresh web path from the holding spring, across the idler roll and t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.