Resources Contact Us Home
Continuous web supply system

Image Number 4 for United States Patent #3995791.

A system for supplying moving web to a web-consuming utilization device, from successively used rolls of web, includes a splicer for splicing the expiring end of a dispensing roll to the beginning end of a ready roll. Between the splicer and the utilization device is a festooner or other web storage device which pays out web before and during operation of the splicer to momentarily stop movement of web through the splicer during splicer operation without effecting the rate of web feed to the utilization device. The web storage device is mechanically driven in the pay out phase of its cycle so that the amount of web paid out follows a fixed web paid out versus drive member displacement schedule, and its operation is positively coordinated with the operation of the splicer and the utilization device to assure the web is stopped in the splicer when the splicer operates, to cause the splice to occur at a desired point along one unit length of the web as consumed by the utilization device, and to enable, when the webs carry repetitively printed patterns, the registration of the pattern of the dispensing roll with the pattern of the ready roll. A web tension control maintains a constant tension in the dispensed web during normal dispensing and brakes the dispensing roll to a stop in the course of a splicing cycle. Means are also provided to facilitate the removal of a spent roll, the installation of a fresh roll, and the setting up of the splicer to splice in the fresh roll during its next operation. The system is useful for example for supplying web to machines for wrapping and packaging sticks of chewing gum or other similar small articles.

  Recently Added Patents
Therapeutic rinse in a self-heating package
Sensor system
Reoccuring keying system
User control of replacement television advertisements inserted by a smart television
Device for maneuvering a vehicle using maneuvering moves using at least one trajectory
SRB enhancement on HS-DSCH during cell change
High power fiber amplifier with stable output
  Randomly Featured Patents
Sealed non-aqueous electrolyte cell having a casing of a sheet of laminated material
Slant angle laser scanner
Bipolar transistor with base drive circuit protection
Wheel with stub axle releasably to end of powered tubular shaft
Process for preparing an aqueous developable photosensitive element
Unsaturated alcohols
Small and cysteine rich antifungal defensin and thionine-like protein genes highly expressed in the incompatible interaction
Liquid crystal display device
Methods and related compositions using specific indanes to reduce weight and inhibit lipase, .alpha.-amylase and .alpha.-glucosidase activity in mammals
Sheetrock lifting apparatus