Location History:
- Wigston, GB (1983 - 1984)
- Leicester, GB (1994)
Company Filing History:
Years Active: 1983-1994
Title: Frank Hartshorn: Innovator in Shoe Machinery
Introduction
Frank Hartshorn is a notable inventor based in Wigston, GB, recognized for his contributions to the shoe manufacturing industry. He holds a total of five patents, showcasing his innovative spirit and technical expertise in machinery designed for shoe production.
Latest Patents
Among his latest inventions is a machine for lasting side portions of shoe uppers. This machine features two lasting rollers positioned on either side of a shoe support, which holds the shoe in an inverted position. The rollers are designed with a helical rib arrangement that, when rotated, creates an inwiping movement on the lasting marginal portions of the shoe upper. The rollers are inclined towards the shoe's longitudinal center line, with their free ends directed towards the heel. The angle between the center line and the roller axis of rotation ranges from 50 to 62 degrees, with a preference for 57 degrees. Additionally, the rollers are made from non-metallic materials, such as synthetic polymers or ceramics, and have a helical rib pitch between 10 to 15 mm.
Another significant invention is the shoe upper conforming machine, which is utilized for side lasting shoe uppers. This machine employs lasting rollers that operate progressively along the shoe's side portions. It features adjustable speed settings, allowing operators to select between 'slow' and 'fast' speeds. The machine can also automatically switch speeds during operation, particularly in the joint region of the shoe bottom. Furthermore, it includes adhesive applying nozzles with controllable flow rates.
Career Highlights
Throughout his career, Frank Hartshorn has worked with prominent companies in the shoe machinery sector, including Usm Corporation and British United Shoe Machinery Ltd. His experience in these organizations has contributed to his development of innovative machinery solutions.
Collaborations
Frank has collaborated with notable individuals in the industry, including Richard E. Storer and Brian J. Murphy. Their collective expertise has likely influenced the advancements in shoe manufacturing technology.
Conclusion
Frank Hartshorn's contributions to the shoe machinery industry through his innovative patents and collaborations highlight his significant role as an inventor. His work continues to impact the efficiency and effectiveness of shoe production processes.