The Mead Corporation

George R Vanhorne

Rodney K Calvert

Alton J Fishback

A carton having upper and lower end flaps and which is movable along a path of movement is manipulated by a machine having upper and lower rotatable flap folders mountable in either a fixed primary or a movable secondary location. The secondary location being movable in an upstream fashion relative to the direction of carton flow. A driving element and a driving mechanism that moves the secondary folder and rotates it to retain a timed relation with the path of movement of the cartons.

Convertible flap folding mechanism

A system of flight bars each flight bar having a leading component and a trailing component, a first pair of endless driving elements interconnected with each leading component and a second pair of spaced apart endless driving elements interconnected with each trailing component. Controlled relative movement is imparted to the first and second pair of endless driving elements so as to vary the distance between the trailing component of a flight bar and the leading component of an immediately succeeding flight bar thereby to render the system adaptable for use in conjunction with packages of different horizontal dimensions in the direction of movement of the flight bars.

Growing community of inventors

Atlanta, GA, United States of America

George R Vanhorne