Crathern Engineering Co., Inc.

Sherman W Twitchell

Charles F Crathern

A high speed system is provided for bringing a plurality of articles, each moving independently in a separate path and at its own speed into registration with each other at a processing station. In applying the invention to a case making machine, successive boards are brought into registration with successive sheet areas defined on a continuous web which moves at a predetermined constant speed. Each board moves at a speed greater than the web speed until registration with the desired sheet area is obtained. A counter measures the registration differential between predetermined detection indicia on each article by keeping track of the distance travelled by each indicium beyond a reference position in the path of the corresponding article. When registration is obtained, the articles are transported at a common speed to the processing station where the separate paths converge.

Registration system

The present invention relates to a system for binding of perforated sheets together through their perforations with at least one loop of flexible tape. The apparatus includes a tape feed station, a tape cut-off station, a tape loop forming station, and a tape loop sealing station. The various stations are interconnected and are activated in a series of interlocking cycles which together result in stringing or inserting a strip of flexible tape through each perforation, cutting the inserted tape to length, and looping the cut length around an adjacent edge of the stack of sheets. End portions of the looped lengths of tape are then sealed to close the loops and thereby form hinges. In a preferred embodiment of the invention, jets are provided to assist stringing the strip of tape through the perforations, and also to assist looping.

Growing community of inventors

Hopkinton, NH, United States of America

Sherman W Twitchell