Leonard Henry Calver

Title: Leonard Henry Calver: Innovator in Packing Machine Technology

Introduction

Leonard Henry Calver is a notable inventor based in London, GB. He has made significant contributions to the field of packing machines, particularly for the cigarette industry. With a total of 2 patents, Calver's innovations have streamlined the packaging process, enhancing efficiency and productivity.

Latest Patents

Calver's latest patents focus on advanced packing machines designed specifically for cigarettes. These machines consist of a carton blank reservoir, a carton blank hopper, a blank feeding device, a blank transfer conveyor, a bundle drum, a packet forming drum, a packet stacking unit, and a packet orientation unit. The process begins with carton blanks being removed one at a time from the hopper by a suction device. These blanks are then fed intermittently by the transfer conveyor to a position adjacent to a pocket in the packet forming drum, where they are partially formed into cartons. Adhesive is applied to certain parts of the blank while on the transfer conveyor, and initial folding occurs. Foil-wrapped bundles of cigarettes are pushed into pockets on the bundle drum and transferred into the partially formed carton. Further folding and gumming take place on the packet forming drum, completing the carton as it is pushed into the stacking unit. Here, the adhesive is reheated, and the packet passes between spring-loaded walls to ensure it meets the required external dimensions. Finally, the completed packets are fed into the orientation unit, which presents each packet in the correct orientation for subsequent operations.

Career Highlights

Calver has built a successful career at Molins Plc, where he has been instrumental in developing innovative packing solutions. His work has significantly impacted the efficiency of cigarette packaging, making it more streamlined and effective.

Collaborations

Throughout his career, Calver has collaborated with talented individuals such as Robert William Davies and Maxwell Francis Veness. These partnerships have contributed to the advancement of packing machine technology.

Conclusion

Leonard Henry Calver's contributions to packing machine technology have made a lasting impact on the industry. His innovative designs and patents continue to influence the efficiency of cigarette packaging processes.