Abstract: This invention provides a core and shaft assembly that enables a user to place a core of web material onto the shaft in a position for feeding the web material. This invention provides a web material core with axially positioned areas that mate with a shaft that has upwardly protruding pins thereby preventing the shaft from rotating when a core with web material wound around it that will not work in the machine is placed on the shaft. The core onto which a web of material can be wound or supported has at least one axially extending slot. The slot extends from the end of the core and ends in the central portion of the core. The shaft subassembly comprises an inner shaft having notches and an outer shaft having spring-loaded pins. The spring-loaded pins mate with the notches on the inner shaft when a core, not designed for use by the given machine, is mounted onto the shaft. The shaft assembly will cease rotating thereby causing the core with the web material wound around it to stop rotating also.

Abstract: This invention provides a core and shaft assembly that enables a user to place a core of web material onto the shaft in a position for feeding the web material. This invention provides a web material core with axially positioned areas that mate with a shaft that has upwardly protruding pins thereby preventing the shaft from rotating when a core with web material wound around it that will not work in the machine is placed on the shaft. The core onto which a web of material can be wound or supported has at least one axially extending slot. The slot extends from the end of the core and ends in the central portion of the core. The shaft subassembly comprises an inner shaft having notches and an outer shaft having spring-loaded pins. The spring-loaded pins mate with the notches on the inner shaft when a core, not designed for use by the given machine, is mounted onto the shaft. The shaft assembly will cease rotating thereby causing the core with the web material wound around it to stop rotating also.